The application is that application number is 200510096688.9, the applying date is on August 31st, 2005, denomination of invention is divided an application for the application of " the ultrasonic detector diagnostic equipment, diagnostic ultrasound equipment and ultrasonic detector diagnostic method ".
The specific embodiment
Embodiments of the present invention are described with reference to the accompanying drawings.
[the 1st embodiment]
Fig. 1 be relate to the present invention's the 1st embodiment, have a basic block diagram of the diagnostic ultrasound equipment of ultrasonic detector diagnostic function.This diagnostic ultrasound equipment comprisesmaster unit 100 and ultrasonic detector 200.Ultrasonic detector 200 comprisesadapter 201,contact unit 202,cable unit 203 and identifyinginformation output unit 204.
Ultrasonic detector 200 is connected withmaster unit 100 by adapter 201.Contact unit 202 consists of a plurality ofultrasonic oscillator 202a one dimensions or two-dimensional arrangements.Eachultrasonic oscillator 202a is connected withadapter 201 by theholding wire 203a that is arranged on cable unit 203.Be provided with theelectrode 201a that is connected with these holdingwires 203a in the adapter 201.That is,ultrasonic detector 200 is formed side by side by a plurality of passages (channel) that containelectrode 201a,ultrasonic oscillator 202a and holdingwire 203a.
The identifying information that 204 outputs of identifying information output unit are distributed by ultrasonic detector 200.Also be provided with theelectrode 201a that is connected with identifyinginformation output unit 204 in theadapter 201.
Master unit 100 comprises adapter 101,102,103, transmittingelement 104, receivingelement 105,instrumentation unit 106,storage medium 107,interface section 108, display processing unit 109,navigation processing unit 110,control unit 111 andmedical diagnosis unit 112.
Be equipped with on the adapter 101 for theadapter 201 that connects ultrasonic detector 200.Have in the adapter 101 and theelectrode 101a that is arranged on theelectrode 201a equal number in the adapter 201.Whenadapter 201 was installed on the adapter 101,electrode 101a was connected respectively withelectrode 201a.Adapter 102 is by for example USB (Universal Serial Bus; USB (universal serial bus)) communication cable (not shown) such as cable is connected with ancillary equipment (not shown).This ancillary equipment is printer, network, PC, keyboard, position indicator etc.Adapter 103 is connected with monitor apparatus (not shown) by monitor cable (not shown).
Transmittingelement 104 sends the pumping signal that is used for excitation ultrasonic oscillator202a.Transmitting element 104 can send a plurality ofultrasonic oscillator 202a pumping signal separately side by side.The signal that receivingelement 105 receives from ultrasonic oscillator202a.Receiving element 105 can receive the signal that a plurality ofultrasonic oscillator 202a send separately side byside.Receiving element 105 is exported the signal that receives to controlunit 111, image generation unit 112b andinstrumentation unit 106.
The eigenvalue of the signal of the 106 pairs of receiving elements in instrumentation unit, 105 outputs carries out instrumentation.Eigenvalue comprises for example from sending ultrasound wave to receiving the needed time the reflection supersonic wave.Under the control ofcontrol unit 111,instrumentation unit 106 will represent that the instrumentation information of the eigenvalue behind the instrumentation is tostorage medium 107,interface section 108, display processing unit 109,110 outputs of navigation processingunit.Storage medium 107 is such as semiconductor memory etc.The various information such as the above-mentioned instrumentation information ofstorage medium 107 storages.The communication process according to the USB standard is for example carried out ininterface section 108, realize with ancillary equipment thatadapter 102 is connected between communication.The information that display processing unit 109 sends according to above-mentioned instrumentation information andcontrol unit 111 etc. generate the picture signal that is used for the monitor apparatus displayed map picture that connects atadapter 103.
Navigation processing unit 110 has for example microprocessor.Navigation processing unit 110 is judged the posture (specifically being the posture of contact unit 202) ofultrasonic detector 200 suitably with reference to the instrumentation information ofinstrumentation unit 106 outputs and the data thatstorage medium 107 sends under the control of control unit 111.In order to eliminate poor between the posture judged and the predefined benchmark posture,navigation processing unit 110 generates and is used for prompting image information that the operation of the posture change that makes ultrasonic detector is navigated.The prompting image information is byinterface section 108 and to the periphery equipment or display processing unit 109 outputs ofadapter 102.
Control unit 111 has for example microprocessor.The each several part of 111 pairs ofmaster units 100 of control unit carries out overall control, realizes being used for the action of diagnostic ultrasound wave detector 200.Control unit 111 also has the function that the necessary data of processing in thenavigation processing unit 110 is sent tonavigation processing unit 110 fromstorage medium 107.
Medical diagnosis unit 112 comprisesimaging control unit 112a, image generation unit 112b,memory element 112c and display unit 112d.Imaging control unit 112acontrol transmitting element 104, receivingelement 105 and image generation unit 112b are in order to carry out suitable imaging processing according to diagnosis content etc.Image generation unit 112b generates the video data that shows the image that is used for medical diagnosis according to the signal of receivingelement 105 outputs.The represented image of video data is the text image of the instrumentation value of the reconstructed image of the faultage image relevant with the internal organs of measured body and blood flow and 3-D view and so on or expression blood flow rate etc. and variation thereof and figure etc.Memory element 112c stores above-mentioned videodata.Display unit 112d shows the above-mentioned video data frommemory element 112c.
The following describes the action of the diagnostic ultrasound equipment with said structure.
When utilizing 200 pairs of measured bodies of ultrasonic detector to carry out medical diagnosis, by effectively utilizingmedical diagnosis unit 112, can equally with well-known diagnostic ultrasound equipment point out the medical diagnosis Useful Information.
On the other hand, whenultrasonic detector 200 was diagnosed, maintainer arranged test object in the media such as water in the containers such as tank as shown in Figure 1, andcontact unit 202 and test object are oppositely arranged.
At this moment, by thedetector carriage 300 shown in Fig. 2 Aultrasonic detector 200 is remained the state shown in Fig. 2B.Detector carriage 300 is by clampingultrasonic detector 200 and keepultrasonic detector 200 with two relative parts 301,302 of withholding.Thus, 200 permissions of ultrasonic detector are by sideway swivel centered by the axle of withholding parts 301,302 compaction direction with to the slip perpendicular to above-mentioned compaction direction, and the posture of other directions is fixed.
When being necessaryultrasonic detector 200 diagnosed,control unit 111 carries out processing shown in Figure 3.Among the step Sa1,control unit 111 is read the identifying information that identifyinginformation output unit 204 is exported.Then, among the step Sa2,control unit 111 is obtained the relevant focus information of machine of theultrasonic detector 200 that connects with adapter 101.The machine ofultrasonic detector 200 is judged according to above-mentioned identifying information.Identifying information does not generally comprise the information that represents machine for distinguishing the information of each ultrasonic detector 200.Control unit 111 is judged the machine ofultrasonic detector 200 by with reference to the data base who records the machine information corresponding with various identifying informations.The data base can obtain from the ancillary equipment that is connected withadapter 102, also can be stored in advance in the storage medium 107.In addition, also can comprise the information that represents machine in the identifying information, directly judge the machine ofultrasonic detector 200 according to this information.Focus information comprises the focus time T F that the expression ultrasound wave arrives focus and returns required time.Control unit 111 is obtained focus information from above-mentioned data base or other data bases.And, if only with theultrasonic detector 200 of single machine as diagnosis object, can omit above-mentioned processing.
Among the step Sa3,control unit 111 by transmittingelement 104 encourage successively previously selected, for detection of theultrasonic oscillator 202a of posture.Here, can be for a plurality of arbitrarily for detection of the quantity of theultrasonic oscillator 202a of posture.In addition, preferably will be energized, separate each other for detection of theultrasonic oscillator 202a of posture as far as possible.In the present embodiment, be arranged on each one at the two ends ofcontact unit 202 and of center and amount to 3ultrasonic oscillator 202a for detection of posture.And hereinafter, for convenience of explanation, these 3 ultrasonic oscillators are called agitator R, agitator L and agitator M.Agitator M is theultrasonic oscillator 202a that is arranged on the center of contact unit 202.In addition, the passage that comprises these agitators R, L, M is called channel C HR, channel C HL, channel C HM.
Agitator R, M, when L is subject to encouraging, the ultrasonic signal that test object reflects is received by receivingelement 105 by above-mentioned agitator R, M, L, holdingwire 203a, electrode 201a and theelectrode 101a that has encouraged.Like this, obtain the digital signal of the reflection ultrasonic signal of channel C HR, CHM, CHL, and be input to instrumentation unit 106.Theninstrumentation unit 106 measures to be energized from agitator R, M, L and begins to receiving required time T R, TM, TL the with it corresponding reflection ultrasonic signal.
Among the step Sa4,control unit 111 indicationnavigation processing units 110 are carried out posture and are judged.At this moment,control unit 111navigation processing units 110 notice is by the focus time T F that represents in the obtained focus information of step Sa2.
According to this indication,navigation processing unit 110 begins to carry out the processing shown in Fig. 3 right side.Among the step Sb1,navigation processing unit 110 is obtained time T R, TM, the TL by above-mentionedinstrumentation unit 106 instrumentations.Among the step Sb2,navigation processing unit 110 initializes variable NFL, NFD.
Among the step Sb3, the focus time T F thatnavigation processing unit 110 is notified time T M andcontrol unit 111 compares.(TM>TF),navigation processing unit 110 advanced to step Sb4 by step Sb3, and variable NFL is " 1 " when time T M was larger than focus time T F.When time TM equals focus time T F (TM=TF),navigation processing unit 110 advances to step Sb5 by step Sb3, and variable NFL is " 0 ".(TM<TF),navigation processing unit 110 advanced to step Sb6 by step Sb3, and variable NFL is " 1 " in F hour than the focus time T as time TM.
Be L, ultrasound wave from sending to when receiving required time and being T the known relation that T=2L/C is arranged if hyperacoustic velocity of sound of Propagation is the spacing distance of C,ultrasonic oscillator 202a and test object.Therefore, for example shown in Figure 5, as time TM during greater than focus time T F, the spacing distance LM of agitator M and test object is greater than the focal length LF of ultrasonic detector 200.Variable NFL is " 1 " when spacing distance LM>focal length LF, is " 0 " during spacing distance LM=focal length LF, is " 1 " during spacing distance LM<focal length LF.
Navigation processing unit 110 advances to step Sb7 from step Sb4, step Sb5 or step Sb6.Among the step Sb7,navigation processing unit 110 is time T R and time T L relatively.(TR>TL), to step Sb8, variable NFD is " 1 " tonavigation processing unit 110 by step Sb7 when time TR is larger than time T L.When time TR equals time T L (TR=TL),navigation processing unit 110 advances to step Sb9 by step Sb7, and variable NFD is " 0 ".When time TR than time T L hour (TR<TL),navigation processing unit 110 advances to step Sb10 by step Sb7, variable NFL is " 1 ".
As mentioned above, spacing distance LR, the LL of time T R, TL and agitator R, L and test object are proportional.Therefore, for example shown in Figure 5, as time TL during greater than time T R, spacing distance LL is greater than spacing distance LR, andcontact unit 202 becomes posture for example shown in Figure 4.Variable NFD is " 1 " when spacing distance LR>spacing distance LL, is " 0 " during spacing distance LR=spacing distance LL, is " 1 " during spacing distance LR<spacing distance LL.
Navigation processing unit 110 advances to step Sb11 from step Sb8, step Sb9 or step Sb10.Among the step Sb11,navigation processing unit 110 generates hint image information corresponding with variable NFL, NFD, the display reminding picture.
Hint image with the image shown in Fig. 6 A as primary image.Comprisearrow A 1, A2, A3, A4 and the respectively expression left-hand rotation of pointing to respectively up and down,arrow A 5, the A6 that turns right in this primary image.
Navigation processing unit 110 changes the color ofarrow A 1, A2 according to variable NFL.That is,navigation processing unit 110 changes the color of the representedarrow A 2 of the shade of Fig. 6 B when variable NFL is " 1 ".Shown in Fig. 6 C,navigation processing unit 110 did not change any one color amongarrow A 1, the A2 when variable NFL was " 0 ".The color of thearrow A 1 of the shadow representation ofnavigation processing unit 110 change Fig. 6 D when variable NFL is " 1 ".
Navigation processing unit 110 changes the color ofarrow A 5, A6 according to variable NFD.That is, the color of thearrow A 5 of the shadow representation ofnavigation processing unit 110 change Fig. 6 E when variable NFD is " 1 ".Shown in Fig. 6 F,navigation processing unit 1 10 does not change any one color amongarrow A 5, the A6 when variable NFD is " 0 ".The color of thearrow A 6 of the shadow representation ofnavigation processing unit 110 change Fig. 6 G when variable NFD is " 1 ".
Then, thenavigation processing unit 110 with among Fig. 6 A~6D any one with Fig. 6 E~Fig. 6 G in any one combination, the generation hint image.The hint image information thatnavigation processing unit 110 will generate like this is to display processing unit 109 outputs.Display processing unit 109 generates the signal that is used at monitor apparatus display reminding picture according to hint image information, byadapter 103 outputs.Hint image information can be input to ancillary equipment byinterface section 108 andadapter 102.
Among the step Sb12,navigation processing unit 110 is to controlunit 111 notice variable NFL, NFD.Then,navigation processing unit 110 finishes the processing of Fig. 3.
When maintainer changed the posture ofcontact unit 202 according to hint image, the poor of the difference of time T M and focus time T F and time T L and time T R reduced.As shown in Figure 8, when time TM was consistent with focus time T F, spacing distance LM was consistent with focal length LF.In addition, as shown in Figure 8, when time T R was consistent with time T L, spacing distance LR, LM, LL were consistent.Therefore, spacing distance LR, LM, LL are all consistent with focal length LF.That is, as shown in Figure 7, test object is arranged on the focus ofultrasonic detector 200, and the arrangement plane of theultrasonic oscillator 202a ofcontact unit 202 is parallel with test object simultaneously.Under this state, because time T M is consistent with focus time T F, time T R is consistent with time T L, so variable NFL, NFD are " 0 ".
Control unit 111 at step Sa4 indicating after the implementation posture judges, advance to step Sa5.Among the step Sa5,control unit 111 is obtained above-mentioned variable NFL, NFD bynavigation processing unit 110 notices.Among the step Sa6,control unit 111 confirms whether variable NFL, NFD are " 0 ".When any one is not " 0 " among variable NFL, the NFD, the later processing ofcontrol unit 111 repeating step Sa3.Then contactunit 202 becomes posture shown in Figure 7, and when variable NFL, NFD were " 0 ",control unit 111 finished the processing of Fig. 3.
As mentioned above, according to the 1st embodiment, maintainer can change by the arrow according to color change in the hint image posture ofcontact unit 202, test object is arranged on the focus ofcontact unit 202, makes simultaneously the arrangement plane ofultrasonic oscillator 202a parallel with test object.Therefore, for ease of maintenaince personnel's operation has alleviated the burden of maintainer, can suitably adjust the posture of ultrasonic oscillator simultaneously.
The 1st embodiment can have following various distortion.
As shown in Figure 9, can be with each time T R, TM, TL are navigated with the mode consistent with irrelevant Tref fiducial time of focus time T F.At this moment, fiducial time, Tref can Set arbitrarily, for example can use among time T R, TM, the TL of initial instrumentation any one, perhaps used the 200 predefined times of each ultrasonic detector.
Like this, can be not yet with reference to fiducial time of focus time T F and so on, so that time T R, TM, the consistent mode of TL are navigated.
The posture of thecontact unit 202 that also can set take the past in addition, is pointed out as benchmark.Specifically, for example, time T R, TM, the TL of past byinstrumentation unit 106 instrumentations is stored in thestorage medium 107 as time T Rold, TMold, TLold.Point out, make time T Rnew, TMnew, TLnew difference time to approach TRold, TMold, the TLold of up-to-date instrumentation.For example, make TRS=TRnew-TRold, TMS=TMnew-TMold, TLS=TLnew-TLold, obtain time difference TRS shown in Figure 10, TMS, TLS.When the symbol of time difference TRS, TMS, TLS is (+), can point out, make the right-hand member, central authorities, left end ofcontact unit 202 respectively near test object: when above-mentioned symbol during for (-), can point out to make it away from test object.And, can with time T R, the TM of any time institute's instrumentation, TL as time T Rold, TMold, TLold, for example can be the moment that maintainer is logined indication.
Hint image can comprise photo and the computer graphic ofcontact unit 202 as shown in figure 11.Thus, maintainer is easy to identify the posture change of thecontact unit 202 of arrow indication.And, also can obtain according to time T R, TM, TL the angle of inclination ofcontact unit 202, according to this angle of inclination, the photo ofcontact unit 202 and computer graphic are tilted.Thus, maintainer intuitivelyidentification probe unit 202 be which kind of posture.And, so photo and computer graphic are tilted, also can omit the prompting of being undertaken by arrow and show.
Hint image also can be the picture of display text information as shown in figure 12.Perhaps can also be generated bynavigation processing unit 110 and be used for the audio-frequency information of above-mentioned Word message as audio frequency output.
As shown in figure 13, hint image can with the doubling of the image of the waveform of the reflection ultrasonic signal that represents respectively to be received by channel C HR, CHM, CHL, be used forarrow A 11, the A12 of prompting as expression.
Can also prepare to represent dynamic video or the animation of the posture change situation ofcontact unit 202, and this dynamic video or animation are included in the hint image.
Carry out being difficult to adjust the posture ofcontact unit 202 in the high situation of the resolution of instrumentation atinstrumentation unit 106 couples of time T R, TM, TL, time T M is equated with focus time T F, time T R is equated with time T L.In this case, preferably the comparison of time T M and focus time T F and time T R and time T L relatively arranged permissible range.That is, for example, the difference of time T M and focus time T F is in permissible range the time, judges time T M and focus time T F for equating, the difference of time T R and time T L is in permissible range the time, and judgement time T R and time T L are for equating.
Whenultrasonic detector 200 is the shape of projection, as shown in figure 14, use the test object of the reflecting surface with curvature Rt corresponding with the curvature R of the surface of emission of contact unit 202.Here, when the focal length of thisultrasonic detector 200 was F, curvature Rt was obtained by formula Rt=R+F.At this moment, the central point of the curvature of the surface of emission ofultrasonic detector 200 must be consistent with the central point of the curvature of the reflecting surface of test object.According to present embodiment, can set respectively the reference value that above-mentioned condition is set up with regard to each time T R, TM, TL, and can make time T R, TM, TL consistent with each reference value respectively by prompting.
Can also be by having the matrix switch of multiplexer structure, with transmittingelement 104 and receivingelement 105 as 1 channel design.Thus, can reduce the circuit scale of transmittingelement 104 and receivingelement 105.
Can be shown according to the signal that display processing unit 109 generates by display unit 112d.For example, display processing unit 109 is coupled together with image generation unit 112b.Then, image generation unit 112b generates video data corresponding to signal that generates with display processing unit 109, and writestorage unit 112c, is shown bydisplay unit 112d.
Also can omitmedical diagnosis unit 112, realize the ultrasonic detector diagnostic equipment.
[the 2nd and the 3rd embodiment]
Figure 15 represent to relate to the 2nd and the 3rd embodiment, have a structure of the diagnostic ultrasound equipment of ultrasonic detector diagnostic function.
This diagnostic ultrasound equipment comprisesmaster unit 400 andultrasonic detector 200.
Master unit 400 comprises adapter 401,402,403, transmittingelement 404, receivingelement 405,instrumentation unit 406,storage medium 407,interface section 408,display processing unit 409,control unit 410 andmedical diagnosis unit 411.
Adapter 201 in theultrasonic detector 200 that is arranged on diagnosis object has been installed on the adapter 401.Have in the adapter 401 and theelectrode 401a that is arranged on theelectrode 201a equal number in the adapter 201.Whenadapter 201 was installed on the adapter 401,electrode 401a was connected respectively withelectrode 201a.Adapter 402 is by being connected with ancillary equipment (not shown) such as the communication cables such as USB cable (not shown).This ancillary equipment is printer, network, PC, keyboard, position indicator etc.Adapter 403 is connected with monitor apparatus (not shown) by monitor cable (not shown).
Transmittingelement 404 sends the pumping signal that is used for excitation ultrasonic oscillator202a.Transmitting element 404 can send among a plurality ofultrasonic oscillator 202a the pumping signal of each side by side.The signal that receivingelement 405 receives from ultrasonic oscillator202a.Receiving element 405 can receive each signal that sends among a plurality ofultrasonic oscillator 202a side byside.Receiving element 405 keeps by the sending/receiving action that eachultrasonic oscillator 202a is carried out repeatedly the successively signal of reception, and with its addition.The signal (hereinafter referred to as composite signal) that receivingelement 405 outputs receive signal or obtained by above-mentioned addition.
The eigenvalue of the composite signal of the 406 pairs of receiving elements in instrumentation unit, 405 outputs carries outinstrumentation.Instrumentation unit 406 will represent to be processed by above-mentioned instrumentation the instrumentation information of the eigenvalue that obtains, and export tostorage medium 407,interface section 408,display processing unit 409 orcontrol unit 410 under the control of control unit 410.Storage medium 407 is such as being semiconductor memory etc.The much informations such as the above-mentioned instrumentation information ofstorage medium 407 storages.Carry out according to for example communication process of USBstandard interface section 408, realize with ancillary equipment thatadapter 402 is connected between communication.The information that displayprocessing unit 409 sends according to above-mentioned instrumentation information andcontrol unit 410 etc. generate the picture signal that is used for the monitor apparatus displayed map picture that connects atadapter 403.
Control unit 410 is made of for example microprocessor.The each several part of 410 pairs ofmaster units 400 of control unit carries out overall control, realizes being used for the action of diagnostic ultrasound wave detector 200.Control unit 410 also has the function of the focal length of judging ultrasonic detector 200.Control unit 410 has the function with the variable setting of hyperacoustic sending/receiving repetitionperiod.Control unit 410 has during the transmission that each above-mentioned setting cycle begins, and controls the function of transmittingelement 404 in order to send ultrasonic signal to ultrasonic detector 200.Control unit 410 also has the instrumentation information that obtains according toinstrumentation unit 406, and namely the eigenvalue of composite signal comes the function of diagnosticultrasound wave detector 200.
Medical diagnosis unit 411 comprises imaging control unit 411a, image generation unit 411b,memory element 411c and display unit 411d.Imaging control unit 411acontrol transmitting element 404, receivingelement 405 and image generation unit 411b are in order to carry out suitable imaging processing according to diagnosis content etc.Image generation unit 411b generates the video data of the image that shows medical diagnosis according to the signal of receivingelement 405 outputs.The represented image of video data is for the instrumentation value of the reconstructed image of the faultage image relevant with the internal organs of measured body and blood flow and 3-D view and so on or expression blood flow rate etc. and represent the text image of its variation and figure etc.Memory element 411c stores above-mentioned videodata.Display unit 411d shows according to video data.
Above structure is that the 2nd and the 3rd embodiment is common.The difference of the 2nd embodiment and the 3rd embodiment is the content of the processing that thecontrol unit 410 by following action specification carries out.
[the 2nd embodiment]
The following describes the action of the diagnostic ultrasound equipment that relates to the 2nd embodiment.
When utilizingultrasonic detector 200 to carry out the medical diagnosis of measured body, by effectively utilizingmedical diagnosis unit 411, can equally with well-known diagnostic ultrasound equipment point out the medical diagnosis Useful Information.
On the other hand, whenultrasonic detector 200 is diagnosed, as shown in figure 15, in the media such as water of maintainer in the containers such as tank test object is set, andcontact unit 202 and test object are oppositely arranged.Maintainer is adjusted the spacing distance ofultrasonic detector 200 and test object, makes the reflecting surface of test object on the focus ofultrasonic detector 200.
When being necessaryultrasonic detector 200 diagnosed,control unit 410 is read the identifying information of identifyinginformation output unit 204 outputs.Then,control unit 410 is obtained the focus information relevant with the machine of ultrasonic detector 200.The machine ofultrasonic detector 200 is judged according to above-mentioned identifying information.Identifying information does not generally comprise the information that represents machine for distinguishing the information of each ultrasonic detector 200.Control unit 410 is judged the machine ofultrasonic detector 200 by with reference to the data base who records the machine information corresponding with various identifying informations.The data base can obtain from the ancillary equipment that is connected withadapter 402, also can be stored in the storage medium 407.In addition, also can comprise the information that represents machine in the identifying information, directly judge the machine ofultrasonic detector 200 according to this information.Focus information relates to belong to the information of focus of theultrasonic detector 200 of each machine, represents at least focal length F.Focus information also can be prepared respectively each ultrasonic detector 200.At this moment, can obtain focus information corresponding toultrasonic detector 200 that connects with adapter 401 according to identifying information.
Control unit 410 is determined repetition period Tf in the following manner according to the represented focal length F of above-mentioned focus information that obtains.That is,control unit 410 is at first calculated fromultrasonic detector 200 by Ta=2F/C and sends ultrasonic signal receives the test object generation toultrasonic detector 200 the needed time T a of reflection ultrasonic signal.Here " C " is hyperacoustic spread speed ofultrasonic detector 200 in the container.Then controlunit 410 is obtained repetition period Tf by Tf=ts+Ta+td.Here " ts " is the hyperacoustic time span of transmission, and " td " is that reflection ultrasonic signal is from arrivingultrasonic detector 200 to disappearing the needed time.
Control unit 410 is by transmittingelement 404 excitationultrasonic oscillator 202a, in order to send ultrasonic signal with the repetition period Tf that determines.The length of the transmitting time of 1 ultrasonic signal is above-mentioned ts.The logical over excitedultrasonic oscillator 202a of ultrasonic signal and holding wire 23a by the test object reflection are received by receiving element 405.Receivingelement 405 keeps receiving signal one by one by the cycle.Then receivingelement 405 is after the finishing receiving of n cycle (n is arbitrary integer), and sends the time started as benchmark take the ultrasonic signal in each cycle, with the reception signal plus in n cyclekeeping.Receiving element 405 sends toinstrumentation unit 406 with the composite signal after the addition.Theninstrumentation unit 406 measures the eigenvalue of above-mentioned composite signal, generates the instrumentation information of this eigenvalue of expression.
Control unit 410 is according to above-mentioned instrumentation information diagnosis ultrasonic detector 200.The diagnosis that controlunit 410 carries out is that for example whether diagnosticultrasound wave detector 200 is normal, also can be the diagnosis that any item relevant withultrasonic detector 200 carried out.
Repetition period Tf determines behind the focal length of having considered ultrasonic detector 200.Therefore, when 2F/C is that theultrasonic detector 200 of Ta1 is when being connected with adapter 401, be that Ta2 (when theultrasonic detector 200 of Ta2<Ta1) is connected with adapter 401, changes and sets, make separately repetition period Tf1, Tf2 shown in Figure 16 A, 16B with being connected 2F/C.Here owing to Ta2<Ta1, so Tf1<Tf2.Because repetition period Tf1, Tf2 are that time T s and time T d add that time T a1 or time T a2 determine, so shown in Figure 16 A, 16B, all be the transmission of carrying out immediately ultrasonic signal after reflection ultrasonic signal disappears in any situation.
Therefore, according to the 2nd embodiment, can eliminate from receiving reflection supersonic wave to the ineffective time the transmission of reflection ultrasonic signal next time, the time in n cycle can be controlled to Min..Therefore, can effectively carry out at short notice the diagnosis ofultrasonic detector 200.
[the 3rd embodiment]
The following describes the action of the diagnostic ultrasound equipment that relates to the 3rd embodiment.
Condition during diagnosticultrasound wave detector 200 is the same with the 2nd embodiment.In addition,control unit 410 is to carry out the same with the 2nd embodiment of action of obtaining till the focus information.
Control unit 410 is determined repetition period Tf1, Tf2, Tf3......Tfn according to the focal length F shown in the focus information of obtaining by following mode.That is,control unit 410 is at first calculated fromultrasonic detector 200 by Ta=2F/C and is sent ultrasonic signal receives the test object generation toultrasonic detector 200 the needed time T a of reflection ultrasonic signal.Then controlunit 410 is obtained the reference value Tf of repetition period by Tf=ts+Ta+td.Then controlunit 410 is obtained repetition period Tfi (i=1,2,3......n) by Tfi=Tf+j * (i-1).Here, j is constant.That is, take repetition period Tf1 as reference value Tf, Tf2, Tf3......Tfn increase constant j successively.
Control unit 410 repeats to send ultrasonic signal by transmittingelement 404 excitation ultrasonic oscillator 202a.Each repetition period that this ultrasound wave sends is used above-mentioned definite Tf1, Tf2, Tf3......Tfn successively.Namely as shown in figure 17, the repetition period in the 1st cycle is Tf1, and the repetition period in the 2nd cycle is Tf2.The transmitting time length ts of 1 ultrasonic signal fixes.Therefore length T r1, Tr2, the Tr3......Trn of time of reception increase successively.
Receivingelement 405 receives reflection ultrasonic signal at reception period.Then the same with the 1st embodiment, receivingelement 405 obtains composite signal with the reception signal plus in n cycle.
Becauseultrasonic detector 200 is maintained above-mentioned state with test object, therefore as shown in figure 17, all roughly the moment of elapsed time Ta arrivesultrasonic detector 200 to original reflection ultrasonic signal after sending ultrasonic signal in each cycle.In addition, when producing the multipath reflection signal, this multipath reflection signal began to roughly the moment of elapsed time (N) Ta arrivesultrasonic detector 200 from sending ultrasonic signal in each cycle.When the time, (N) Ta was greater than Tfi, the multipath reflection signal after cycle arrive ultrasonic detector 200.At this moment, obtained by (N) Ta-Tri to the time T bi that receives the multipath reflection signal from the initial time in cycle of receiving the multipath reflection signal.That is, as shown in figure 17, the time T b1 relevant with the multipath reflection signal MF1 of the ultrasonic signal that sends in initial cycle is (N) Ta-Tr1.The time T b2 relevant with the multipath reflection signal MF2 of the ultrasonic signal that sends in the 2nd cycle is (N) Ta-Tr2.Because time T r1, Tr2, Tr3......Trn gradually change, time T b1, Tb2, Tb3......Tbn also change successively.Therefore, the timing of reception multipath reflection signal also changes with each cycle in one-period.
Like this, when send take the ultrasonic signal in each cycle the time started as benchmark with n cycle reception signal plus separately after the time because original reflected signal occurs at one time, so its level approximately becomes n times during addition.But, because the appearance of multipath reflection signal discrete ground, so hardly addition.Therefore, as shown in figure 18, the composition of original reflection ultrasonic signal is much larger than the composition of multipath reflection signal in the composite signal.
Like this, according to the 3rd embodiment, can easily distinguish reflection ultrasonic signal composition and multipath reflection signal component in the composite signal.Therefore, by the characteristic quantity that only is conceived to the composite signal relevant with the reflection ultrasonic signal compositionultrasonic detector 200 is diagnosed, can have been reduced the suitable diagnosis of the impact of multipath reflection signal.
In addition, according to the 3rd embodiment, determining of the minima of repetition period is the same with the 2nd embodiment.Therefore, each repetition period Tf1, Tf2, Tf3......Tfn can be suppressed can effectively diagnose at short notice for necessary Min..
The the 2nd or the 3rd above embodiment can have following various distortion.
When determining repetition period Tf in the 2nd embodiment and the reference value Tf in the 3rd embodiment, can add some surpluses.
In the 2nd or the 3rd embodiment, the value that maintainer can be inputted is as focal length.
In the 2nd or the 3rd embodiment,ultrasonic detector 200 and the spacing distance of test object are adjusted into the focal length ofultrasonic detector 200 consistent, as prerequisite, focal length are determined the repetition period as spacing distance.But above-mentioned spacing distance is not necessarily leaveed no choice but consistent with focal length.If spacing distance and focal length are inconsistent, should judge spacing distance, determine the repetition period according to this layout distance.For example, when determining spacing distance according to eachultrasonic detector 200 or each kind, can from the data base, obtain.Perhaps can be obtained by the spacing distance of maintainer input.
In the 2nd or the 3rd embodiment, also can not synthesize the signal in a plurality of cycles, such as respectively with reference to the diagnosis of the characteristic quantity of each signal institute instrumentation being carried outultrasonic detector 200 etc.
In the 3rd embodiment, the setting of the minima of repetition period also can be irrelevant with focal length.
In the 3rd embodiment, the changing method of repetition period also can be arbitrarily.For example, can change the recruitment of repetition period.In addition, can also reduce successively the repetition period.Also the repetition period can be increased and decreased repeatedly.
In the 2nd or the 3rd embodiment, by having the matrix switch of multiplexer structure, can be with transmittingelement 404 and receivingelement 405 as 1 channel design.Thus, can reduce the circuit scale of transmittingelement 404 and receivingelement 405.
Also can be carried out bydisplay unit 411d the demonstration of the signal that generates based on display processing unit 409.For example,display processing unit 409 is connected with image generation unit 411b.Then, image generation unit 411b generates video data corresponding to signal that generates withdisplay processing unit 409, and is written tomemory element 411c, and is shown bydisplay unit 411d.
Also can realize the ultrasonic detector diagnostic equipment even omitmedical diagnosis unit 411.
[the 4th embodiment]
Figure 19 represent to relate to the 4th embodiment, have a structure of the diagnostic ultrasound equipment of ultrasonic detector diagnostic function.This diagnostic ultrasound equipment comprisesmaster unit 500 andultrasonic detector 600.
Master unit 500 comprises adapter 501,502,503, transmittingelement 504, receivingelement 505,instrumentation unit 506,storage medium 507,interface section 508,display processing unit 509,voltage generation unit 510, resistor 511-1~511-n, the 1st switch 512-1~512-n, the 2nd switch 513-1~513-2,control unit 514 andmedical diagnosis unit 515.
Adapter on theultrasonic detector 600 that is arranged on diagnosis object is installed on the adapter 501.Adapter 502 is by being connected with ancillary equipment (not shown) such as the communication cables such as USB cable (not shown).This ancillary equipment is printer, network, PC, keyboard, position indicator etc.Adapter 503 is connected with monitor apparatus (not shown) by monitor cable (not shown).
Transmittingelement 504 sends and is used for the pumping signal that excitation is arranged on the ultrasonic oscillator on the ultrasonic detector 600.Transmittingelement 504 can send the pumping signal of a plurality of passages (n passage) side byside.Receiving element 505 receives the signal that above-mentioned ultrasonic detectorsends.Receiving element 505 can receive the signal of n passage side byside.Receiving element 505 is with the signal output that receives.Receivingelement 505 also has the function that detects the voltage on each holding wire that is arranged on above-mentionedultrasonic detector 600 for the signal that transmits npassage.Receiving element 505 outputs to controlunit 514 with the voltage V (CH) of detected each passage.
Instrumentation unit 506 carries out predefined instrumentation processing according to the reception signal of receivingelement 505 outputs.The instrumentation information that obtains will be processed by above-mentioned instrumentation ininstrumentation unit 506, export tostorage medium 507,interface section 508,display processing unit 509 andcontrol unit 514 under the control of control unit 514.Storage medium 507 is such as semiconductor memory etc.The various information such as the above-mentioned instrumentation information ofstorage medium 507 storages.The communication process according to the USB standard is for example carried out ininterface section 508, realize with ancillary equipment thatadapter 502 is connected between communication.The information that displayprocessing unit 509 sends according to above-mentioned instrumentation information andcontrol unit 514 etc. generate the picture signal that is used for the monitor apparatus displayed map picture that connects atadapter 503.
Voltage generation unit 510 under the control ofcontrol unit 514, produce voltage Vsup1, ± Vsup2, ± Vsup3.Voltage generation unit 510 can be with n passage output voltage V sup1 side by side.Voltage generation unit 510 can distinguish side by side output+Vsup2 ,-Vsup2 ,+Vsup3 ,-Vsup3.Voltage Vsup1 offers respectively the B terminal of the 1st switch 512-1~512-n.The pumping signal of n passage of transmittingelement 504 outputs offers respectively the A terminal of the 1st switch 512-1~512-n.Under the control ofcontrol unit 514, the 1st switch 512-1~512-n selects and outputs toadapter 501 to these pumping signals and voltage Vsup1.Voltage ± Vsup2 is offered respectively the C terminal of the 2nd switch 513-1,513-2.Voltage ± Vsup3 offers respectively the D terminal of the 2nd switch 513-1,513-2.Under the control ofcontrol unit 514, the 2nd switch 513-1,513-2 to voltage ± Vsup2, ± Vsup3 selects and outconnector 501.
Control unit 514 comprises for example microprocessor.The each several part of 514 pairs ofmaster units 500 of control unit carries out overall control, realizes being used for the action of diagnostic ultrasound wave detector 600.Control unit 514 also has the function of judging the signal line states relevant with each passage according to the voltage V (CH) of receivingelement 505outputs.Control unit 514 also has byadapter 501 to be obtained the identifying information of the ultrasonic detector that is connected withadapter 501 and identifies the function of the type of ultrasonic detector 600.Control unit 514 also has the function of controlling the operating state of receivingelement 505,voltage generation unit 510, the 1st switch 512-1~512-n and the 2nd switch 513-1,513-2 according to the above-mentioned type of identification.
Medical diagnosis unit 515 also comprises imaging control unit 515a, image generation unit 515b,memory element 515c and display unit 515d.Imaging control unit 515acontrol transmitting element 104, receivingelement 105 and image generation unit 515b are in order to carry out suitable imaging processing according to diagnosis content etc.Image generation unit 515b generates the video data of the image that shows medical diagnosis according to the signal of receivingelement 105 outputs.The represented image of video data is the text image of the instrumentation value of the reconstructed image of the layer image relevant with the internal organs of measured body and blood flow and three-dimensional image and so on or expression blood flow rate etc. and variation thereof and figure etc.Memory element 515c stores above-mentioned videodata.Display unit 515d shows according to video data.
The following describes the action of the diagnostic ultrasound equipment of above structure.
When utilizingultrasonic detector 600 to carry out the medical diagnosis of measured body, by effectively utilizingmedical diagnosis unit 515, can equally with well-known diagnostic ultrasound equipment point out the medical diagnosis Useful Information.
On the other hand, in the diagnosis ofultrasonic detector 600, can be with theultrasonic detector 600 of the 1st to the 3rd 3 types (hereinafter referred to as type photodetectors) as diagnosis object.And in the later explanation, the ultrasonic detector that the ultrasonic detector of the 1st type photodetector is designated as symbol 600-1, the 2nd or the 3rd type photodetector is designated as symbol 600-2, in order to distinguish.
Figure 20 represents the situation that ultrasonic detector 600-1 is connected withadapter 501 shown in Figure 19.And omitted the part diagram of the constituent of master unit shown in Figure 19 500 among Figure 20.
Ultrasonic detector 600-1 comprisesadapter 601,contact unit 602,cable unit 603 and identifying information output unit 604.
Adapter 601 is installed on the adapter501.Contact unit 602 is that theultrasonic oscillator 602a that will be n to the maximum arranges formation in the mode of one dimension or two dimension.Eachultrasonic oscillator 602a is connected withadapter 601 by theholding wire 603a that is arranged on cable unit 603.Adapter 501,601 is connected to receivingelement 505 and the 1st switch 512-1~512-n to eachholding wire 603a.
The identifying information that identifying information output unit 604 output ultrasonic wave detector 600-1 distribute.Adapter 501,601 identifying informations with 604 outputs of identifying information output unitoffer control unit 514.
Figure 21 represents the situation that ultrasonic detector 600-2 is connected withadapter 501 shown in Figure 19.And omitted the part diagram of the constituent of master unit shown in Figure 19 500 among Figure 21.
Ultrasonic detector 600-2 comprisesadapter 611,contact unit 612,electronic circuit 613, cable unit 614 and identifyinginformation output unit 615.
Adapter 611 is installed on the adapter501.Contact unit 612 is to be the structure that the individualultrasonic oscillator 612a of n is arranged in one dimension or two dimension to the maximum.Eachultrasonic oscillator 612a is connected withelectronic circuit 613 respectively.Electronic circuit 613 is connected withadapter 611 by theholding wire 614a with theultrasonic oscillator 612a equal number that is arranged at cable unit 614.Adapter 501,611 is connected to receivingelement 505 and the 1st switch 512-1~512-n to eachholding wire 614a.
The identifying information that identifyinginformation output unit 615 output ultrasonic wave detector 600-2 distribute.Adapter 501,611 identifying informations with 615 outputs of identifying information output unitoffer control unit 514.
Electronic circuit 613 has the function that applies bias voltage to holding wire 614a.In the 2nd type photodetector and the 3rd type photodetector, the bias voltage ofelectronic circuit 613 outputs is different.Electronic circuit 613 in the 2nd type photodetector is accepted the supply of voltage ± Vsup2 and output voltage more than or equal to the bias voltage of Vth.In the 3rd type photodetector, output is less than the bias voltage of voltage Vth whenelectronic circuit 613 is accepted the supply of voltage ± Vsup2, and output is more than or equal to the bias voltage of voltage Vth when accepting the supply of voltage ± Vsup3.Adapter 501,611 is connected to the 2nd switch 513-1,513-2 to the voltage supply line ofelectronic circuit 613 service voltages.
When being necessary the signal line states of ultrasonic detector 600-1 or detector 600-2 diagnosed,control unit 514 carries out processing shown in Figure 22.
Among the step Sc1,control unit 514 reads in the identifying information of identifyinginformation output unit 604 or 615 outputs of identifying information output unit.In step Sc2,control unit 514 is judged the type photodetector of ultrasonic detector 600-1 or 600-2 according to above-mentioned identifying information.Identifying information does not comprise the information that represents type photodetector for the information of each ultrasonic detector ofdifference.Control unit 514 is judged type photodetector by with reference to the data base who records the type photodetector corresponding with various identifying informations.The data base can obtain from the ancillary equipment that is connected withadapter 502, also can be stored in the storage medium 507.In addition, also can comprise the information that represents type photodetector in the identifying information, directly judge type photodetector according to this information.
When type photodetector was the 1st class,control unit 514 advanced to step step Sc3 by step Sc2.Among the step Sc3,control unit 514 is selected the B terminal of the 1st switch 512-1~512-n as shown in figure 20.Common the 1st switch 512-1~512-n selects the A terminal.Then begin to apply respectively voltage Vsup1 to eachholding wire 603a.
The voltage of holdingwire 603a is not to reach immediately voltage Vsup1, but rises gradually.This is because there is the capacity load composition whenadapter 601 is seen contact unit 602.Execute the alive moment during as benchmark take beginning to holdingwire 603a, the voltage of theholding wire 603a of t is corresponding with the state of holdingwire 603a constantly, changes as shown in figure 23.Namely, if holdingwire 603a is in normal situation, the voltage of holdingwire 603a represents with V during t constantly, then in the situation of holdingwire 603a short circuit, the voltage of holdingwire 603a be the V1 less than V during t constantly, in the situation that holdingwire 603a disconnects, the voltage of holdingwire 603a is the V2 larger than V during moment t.
Then, in step Sc4,control unit 514 begins to wait for elapsed time t from switch the 1st switch 512-1~512-n among step Sc3, then at step Sc5, the voltage of eachholding wire 603a, i.e. the voltage V (CH) of each passage when from receivingelement 505, obtaining moment t.At step Sc6,control unit 514 judges that voltage V (CH) surpasses above-mentioned voltage V and adds that the passage of the value of allowable error ε is off-state.Among the step Sc7,control unit 514 judges that it is short-circuit condition that voltage V (CH) are lower than the passage that above-mentioned voltage V deducts the value of allowable error ε.Then at step Sc8,control unit 514 is judged other passages, i.e. the passage of V (CH) in V ± ε scope is for normally.
And the value of suitable moment t, voltage V, allowable error ε that is used for above-mentioned judgement is difference with the difference of the kind of ultrasonic detector.Therefore, by which kind of value t, voltage V, allowable error ε adopt be documented among the above-mentioned data base constantly, the identifying information of in step Sc1, obtaining according tocontrol unit 514, from above-mentioned data base, obtain the mode that the value of t, voltage V, allowable error ε is constantly used, can improve accuracy of detection.At this moment,voltage generating unit 510 changes the voltage Vsup1 that produces under the control of control unit 514.Equally, also can with resistor 511-1~511-n as rheostat, its resistance value be changed.
When type photodetector was the 2nd class,control unit 514 advanced to step Sc9 by step Sc2.Among the step Sc9,control unit 514 is selected the A terminal of the 1st switch 512-1~512-n, shown in solid line among Figure 21, selects the C terminal of the 2nd switch 513-1,513-2 simultaneously.Then controlunit 514 advances to step Sc11.
On the other hand, when type photodetector was the 3rd class,control unit 514 advanced to step Sc10 by step Sc2.Among the step Sc10,control unit 514 is selected the A terminal of the 1st switch 512-1~512-n, simultaneously as shown in phantom in Figure 21, selects the D terminal of the 2nd switch 513-1,513-2.Then controlunit 514 advances to step Sc11.
Namely, among the ultrasonic detector 600-2 of the 3rd class, ifelectronic circuit 613 is not supplied with the voltage ± Vsup3 different from voltage ± Vsup2, just can't to holdingwire 614a apply for detection of enough bias voltages, so voltage ± Vsup3 supplies toelectronic circuit 613 by the 2nd switch 513-1,513-2.Relative with it, among the ultrasonic detector 600-2 of the 2nd class, becauseelectronic circuit 613 service voltages ± during Vsup2 can to holdingwire 614a apply for detection of bias voltage, so voltage ± Vsup2 supplies toelectronic circuit 613 by the 2nd switch 513-1,513-2.
Among the step Sc11,control unit 514 is obtained the voltage of each holding wire 24a, i.e. the voltage V (CH) of each passage from receiving element 505.Among the step Sc12,control unit 514 judges that voltage V (CH) is normal more than or equal to the passage of threshold value Vth, judges that other passage is for opening circuit.
And the value that is used for suitable voltage ± Vsup2, the voltage ± Vsup3 of above-mentioned judgement and threshold value Vth with the difference of the kind of ultrasonic detector difference.Therefore, by adopting which kind of value to be documented among the above-mentioned data base voltage ± Vsup2, voltage ± Vsup3 and threshold value Vth, the identifying information of in step Sc1, obtaining according tocontrol unit 514, from above-mentioned data base, obtain the mode that the value of voltage ± Vsup2, voltage ± Vsup3 and threshold value Vth is used, can improve accuracy of detection.
According to the 4th above embodiment, when ultrasonic detector 200,300holding wire 603a, 614a and adapter 601,611 abnormal, can judge that this is unusual.Therefore, the reason that can judge easily ultrasonic detector 600-1,600-2 and do not have normal operation is that the fault by ultrasonic oscillator causes or is caused by the fault of cable distribution or adapter.
In other the 4th embodiment, have the device of the judgement signal line states that is conceived to line voltage signal indicial response characteristic and be conceived to be applied to the device of the judgement signal line states of the bias voltage on the holding wire, be the ultrasonic detector 600-2 of ultrasonic detector 600-1 or the 2nd or the 3rd class according to the diagnosis object that is connected withadapter 501, use respectively above-mentioned 2 devices.And the 4th in the embodiment, can be the 2nd or the 3rd class according to the ultrasonic detector 600-2 that is connected withadapter 501 selectively toelectronic circuit 613 service voltages ± Vsup2 and voltage ± Vsup3, switches the voltage that offers electronic circuit 613.Thus, can diagnose the ultrasonic detector of the 1st to the 3rd class, can carry out the diagnosis of the ultrasonic detector of heterogenous by enough 1master units 500.
In other the 4th embodiment, judge the type photodetector of theultrasonic detector 600 that is connected withadapter 501 according to the identifying information of ultrasonic detector, and can be according to the judged result diagnostic action that automaticallyes switch, so the operator there is no need to note the type photodetector as theultrasonic detector 600 of diagnosis object.Therefore can alleviate operator's burden.
The 4th embodiment can have following various variation.
Can diagnose respectively 3 type photodetectors of the 1st to the 3rd, also can be only a kind or 2 kinds of type photodetectors be diagnosed.
The time that also can reach according to the voltage of holdingwire 603a voltage V to the diagnosis of ultrasonic detector 600-1 carries out.
Diagnosis to ultrasonic detector 600-1 also can only judge whether normally.
By having the matrix switch of multiplexer structure, can be with transmittingelement 504 and receivingelement 505 as 1 channel design.Thus, can reduce the circuit scale of transmittingelement 504 and receiving element 505.In addition, make the output of voltage Vsup1 ofvoltage generation unit 510 as 1 system, make simultaneously resistor 511 and the1st switch 512 respectively as a system.
The method that changes the state that applies of voltage Vsup1 can be any.For example, can make voltage Vsup1 is negative voltage.The level of the voltage Vsup1 that applies can be raise or reduces.When changing the level of voltage Vsup1, polarity that both can fixed voltage Vsup1 also can be reversed it.
The demonstration of the signal that generates according todisplay processing unit 509 can be undertaken by display unit 515d.For example,display processing unit 509 is connected with image generation unit 515b.Then image generation unit 515b generates video data corresponding to signal that generates withdisplay processing unit 509, and is written tomemory element 515c, is shown bydisplay unit 515d.
Also can realize the ultrasonic detector diagnostic equipment even omitmedical diagnosis unit 515.
[the 5th to the 8th embodiment]
Common basic structure in the 5th to the 8th embodiment at first is described.Figure 24 represent to relate to each embodiment, have the basic structure of the diagnostic ultrasound equipment of ultrasonic detector diagnostic function.
This diagnostic ultrasound equipment comprisesmaster unit 700 andultrasonic detector 200.
Master unit 700 comprises adapter 701,702,703, transmittingelement 704, receivingelement 705,instrumentation unit 706,storage medium 707,interface section 708,display processing unit 709, judgingpart 710,control unit 711 andmedical diagnosis unit 712.
Theadapter 201 that is arranged on the diagnosis objectultrasonic detector 200 has been installed on the adapter 701.Adapter 701 has and theelectrode 701a that is arranged on the same quantity ofelectrode 201a on the adapter 201.Whenadapter 201 was installed on theadapter 701,electrode 701a was connected respectively withelectrode 201a.Adapter 702 is by being connected with ancillary equipment (not shown) such as the communication cables such as USB cable (not shown).This ancillary equipment is printer, network, PC, keyboard, position indicator etc.Adapter 703 is connected with monitor apparatus (not shown) by monitor cable (not shown).
Transmittingelement 704 sends for the pumping signal that encourages a plurality of ultrasonic oscillator202a.Transmitting element 704 can send a plurality ofultrasonic oscillator 202a pumping signal separately side by side.The signal that receivingelement 705 receives from ultrasonic oscillator202a.Receiving element 705 can receive the signal that a plurality ofultrasonic oscillator 202a receive separately side by side.The signal that receivingelement 705 outputs receive.
The eigenvalue of the signal of the 706 pairs of receiving elements in instrumentation unit, 705 outputs carries out instrumentation.The instrumentation information that obtains will be processed by above-mentioned instrumentation ininstrumentation unit 706, export tostorage medium 707,interface section 708,display processing unit 709, judgingpart 710 orcontrol unit 711 under the control of control unit 711.Storage medium 707 is such as being semiconductor memory etc.The much informations such as the above-mentioned instrumentation information ofstorage medium 707 storages.Carry out according to for example communication process of USBstandard interface section 708, realize with ancillary equipment thatadapter 702 is connected between communication.The information that displayprocessing unit 709 sends according to above-mentioned instrumentation information andcontrol unit 711 etc. generate the picture signal that is used for the monitor apparatus displayed map picture that connects atadapter 703.
Judgingpart 710 judges according to the instrumentation information of instrumentation unit output and the data that provided bystorage medium 707 whetherultrasonic detector 200 is normal under the control of control unit 711.Judgingpart 710 offerscontrol unit 711 with judged result.
Control unit 711 is made of for example microprocessor.The each several part of 711 pairs ofmaster units 700 of control unit carries out overall control, realizes being used for the action of diagnostic ultrasound wave detector 200.In addition,control unit 711 also has the judgement carried out with judgingpart 710 and processes and synchronously will send to for the data of above-mentioned judgement the function of judgingpart 710 fromstorage medium 707.
Medical diagnosis unit 712 comprisesimaging control unit 712a, image generation unit 712b,memory element 712c and display unit 712d.Imaging control unit 712acontrol transmitting element 704, receivingelement 705 and image generation unit 712b are in order to carry out suitable imaging processing according to diagnosis content etc.Image generation unit 712b generates the video data that shows the image that is used for medical diagnosis according to the signal of receivingelement 705 outputs.The represented image of video data is the text image of the instrumentation value of the reconstructed image of the layer image relevant with the internal organs of measured body and blood flow and three-dimensional image and so on or expression blood flow rate etc. and variation thereof and figure etc.Memory element 712c stores above-mentioned video data.Display unit 712d shows according to video data.
More than be the basic structure of the related diagnostic ultrasound equipment of the 5th to the 8th embodiment.The below's detailed description the 5th to the 8th embodiment separately.
[the 5th embodiment]
Figure 25 relates to the block diagram of feature structure of themaster unit 700 of the 5th embodiment for expression.Wherein, the part identical with Figure 24 is with identical symbolic representation, and description is omitted.
As shown in figure 25,instrumentation unit 706 comprisesbuffer storage unit 706a,amplitude analysis unit 706b, mid frequencyanalytic unit 706c andbandwidth analysis unit 706d.
Receivingelement 705 is input toinstrumentation unit 706 with the signal that receives as digital signal.The digital signal of the interim storing received ofbuffer storage unit 706aunit 705 outputs.Amplitude analysis unit 706b analyzes the digital signal that is stored inbuffer storage unit 706a, and measures amplitude and the amplitude excursion degree of this digital signal.Mid frequencyanalytic unit 706c analyzes the digital signal that is stored inbuffer storage unit 706a, and measures center frequency value and the frequency departure degree of this digital signal.Bandwidth analysis unit 706d analyzes the digital signal that is stored inbuffer storage unit 706a, and measures bandwidth value and the bandwidth degree of deviation of this digital signal.
Judgingpart 710 comprises the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f and comprehensive judging part 710g.Also be provided with in addition benchmark database (benchmark DB) 707a in thestorage medium 707.
The V electrical level judging 710a of section carries out the judgement of quality according to the level reference data that the amplitude of the amplitude ofamplitude analysis unit 706b instrumentation andbenchmark database 707a output is used.The Fo electrical level judging 710b of section carries out the judgement of quality according to the level reference data that the mid frequency of the center frequency value of mid frequencyanalytic unit 706c instrumentation andbenchmark database 707a output is used.The BW electrical level judging 710c of section carries out the judgement of quality according to the level reference data that the bandwidth of the amplitude ofbandwidth analysis unit 706d instrumentation andbenchmark database 707a output is used.
Vdeviation judging part 710d carries out the judgement of quality according to the deviation benchmark data that the amplitude of the amplitude excursion degree ofamplitude analysis unit 706b instrumentation andbenchmark database 707a output is used.Fodeviation judging part 710e carries out the judgement of quality according to the deviation benchmark data that the mid frequency of the mid frequency degree of deviation of mid frequencyanalytic unit 706c instrumentation andbenchmark database 707a output is used.BWdeviation judging part 710f carries out the judgement of quality according to the deviation benchmark data that the bandwidth of the degree of deviation ofbandwidth analysis unit 706d instrumentation andbenchmark database 707a output is used.
Comprehensive judgingpart 710g judges comprehensively according to the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f fine or not judged result separately whetherultrasonic detector 200 is normal.
Figure 26 represents the structure ofbenchmark database 707a.
Benchmark database 707a comprises the other benchmark database of a plurality of detectors (the other benchmark DB of detector) 771.Recorded and narrated in theother benchmark database 771 of these detectors and considered the benchmark data determined after various different types of ultrasonic detector characteristics.Theother benchmark database 771 of detector comprises respectively V benchmark database (V benchmark DB) 771a, Fo benchmark database (Fo benchmark DB) 771b, BW benchmark database (BW benchmark DB) 771c.
As shown in figure 26,V benchmark database 771a is corresponding with each passage ofultrasonic detector 200, records and narrates level reference data and the deviation benchmark data used for the amplitude of judging this passage quality.Fo benchmark database 771b records and narrates level reference data and the deviation benchmark data used for the mid frequency of judging this passage quality as shown in figure26.BW benchmark database 771c records and narrates level reference data and the deviation benchmark data used for the bandwidth of judging this passage quality as shown in figure 26.
The following describes the action of diagnostic ultrasound equipment of the 5th embodiment of above structure.
When utilizingultrasonic detector 200 to carry out the medical diagnosis of measured body, by effectively utilizingmedical diagnosis unit 712, can equally with well-known diagnostic ultrasound equipment point out the medical diagnosis Useful Information.
On the other hand, during diagnosticultrasound wave detector 200, in the media such as water of maintainer in the containers such as tank shown in Figure 24 test object is set, andcontact unit 202 and test object are oppositely arranged.
When being necessaryultrasonic detector 200 diagnosed,control unit 711 encouragesultrasonic oscillator 202a successively by transmitting element 704.Then,ultrasonic oscillator 202a, holdingwire 203a, electrode 201a and theelectrode 701a of the ultrasonic signal that controlunit 711 makes test object reflection after by above-mentioned excitation is by receivingelement 705 receptions.Like this, the digital signal of the reflection ultrasonic signal of each passage stores thebuffer storage 706a ofinstrumentation unit 706 successively into.Then,control unit 711 respectivelyamplitude analysis unit 706b carry out the amplitude of reflection ultrasonic signal and amplitude excursion degree instrumentation, carry out the instrumentation of center frequency value and the mid frequency degree of deviation at mid frequencyanalytic unit 706c, carry out the instrumentation of bandwidth value and the bandwidth degree of deviation atbandwidth analysis unit 706d.
Figure 27 A represents an example of the amplitude variations of reflection ultrasonic signal.Amplitude analysis unit 706b with (V+max) among Figure 27 A+| (V-max) | value or V+max or | value larger among the V-max| is as amplitude.In addition,amplitude analysis unit 706b with the difference of the amplitude of this instrumentation and predefined setting or ratio as the amplitude excursion degree.
Figure 27 B represents an example of the frequency spectrum of reflection ultrasonic signal.Mid frequencyanalytic unit 706c with (FL+FH)/2 among Figure 27 B as center frequency value.In addition mid frequencyanalytic unit 706c with the difference of the center frequency value of this instrumentation and predefined setting or ratio as the mid frequency degree of deviation.Bandwidth analysis unit 706d with (FH-FL) among Figure 27 B as bandwidth value.In additionbandwidth analysis unit 706d with the difference of the bandwidth value of this instrumentation and predefined setting or ratio as the bandwidth degree of deviation.
On the other hand,control unit 711 makes amplitude, center frequency value, bandwidth value, the amplitude excursion degree, the mid frequency degree of deviation is consistent with the timing of each passage of instrumentation with the bandwidth degree of deviation, and the level reference data of will the amplitude corresponding with each passage using, the level reference data that mid frequency is used, the level reference data that bandwidth is used, the deviation benchmark data that amplitude is used, the deviation benchmark data that mid frequency is used, the deviation benchmark data that bandwidth is used sends to the V electrical level judging 710a of section frombenchmark database 707a respectively, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BW deviation judging part 710f.Just controlunit 711 is judged the kind ofultrasonic detector 200 according to the identifying information of identifyinginformation output unit 204 outputs, and each benchmark data is exported from theother benchmark database 771 of the detector corresponding with kind.
Identifying information is the information of specific eachultrasonic detector 200, does not generally comprise the information that represents machine.Control unit 711 is judged the machine ofultrasonic detector 200 by with reference to the data base who records the machine information corresponding with various identifying informations.The data base can from ancillary equipment thatadapter 702 is connected obtain, also can be stored in the storage medium 707.In addition, also can comprise the information that represents machine in the identifying information, directly judge the machine ofultrasonic detector 200 according to this information.
The V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section whether in the represented reference range of the level reference data that amplitude is used with, bandwidth with, mid frequency, judge the quality of each passage by amplitude, center frequency value, bandwidth value.The V electrical level judging 710a of section, the Fo electrical level judging 710b of section and the BW electrical level judging 710c of section when each value is in each reference range, be judged as " by ", each value is judged as " failure " outside each reference range the time, and the result is exported.And the level reference data that amplitude is used, mid frequency is used, bandwidth is used have the threshold value of expression and represent two kinds of situations of permissible range.The V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section judge above-mentioned quality by the size that compares this threshold value and each value when level reference data representation threshold value; When level reference data representation permissible range, whether in this permissible range, judge above-mentioned quality by confirming each value.
Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f whether in the represented reference range of the deviation benchmark data that amplitude is used with, bandwidth with, mid frequency, judge the quality of each passage by amplitude excursion degree, the mid frequency degree of deviation, the bandwidth degree of deviation.Vdeviation judging part 710d, Fodeviation judging part 710e and BWdeviation judging part 710f when each value is in each reference range, be judged as " by ", when each value is outside each reference range, be judged as " failure ", and the result exported.And the deviation benchmark data that amplitude is used, mid frequency is used, bandwidth is used has the threshold value of expression and represents two kinds of situations of permissible range.Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f when the deviation benchmark data represents threshold value, judge above-mentioned quality by the size that compares this threshold value and each degree of deviation; When the deviation benchmark data represents permissible range, whether in this permissible range, judge above-mentioned quality by confirming each degree of deviation.
Comprehensive judgingpart 710g finally judges the quality of each passage according to the result that the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f about same passage judge respectively.Comprehensive judging part 710g judges the quality ofultrasonic detector 200 according to the judged result of the quality of all passages.Comprehensive judgingpart 710g is with the fine or not judged result of each passage and the fine or not judged resultnotice control unit 711 ofultrasonic detector 200.
The displayed map picture of the fine or not judged result ofcontrol unit 711 each passage of generation expression and the fine or not judged result of ultrasonic detector 200.Be used for showing that by monitor apparatus the signal of displayed map picture is generated bydisplay processing unit 709 under the control ofcontrol unit 711, and byadapter 703outputs.Control unit 711 can generate the print data of the statement that comprises above-mentioned displayed map picture.This print data sends to printer byinterface section 708 andadapter 702 and prints.
As mentioned above, according to the 5th embodiment, the quality of automatic decisionultrasonic detector 200, namely whetherultrasonic detector 200 is normal.In order to judge quality, use the reference range corresponding with the kind of ultrasonic detector 200.Therefore, above-mentioned judgement can suitably be carried out after the characteristic of considering every kind of ultrasonic detector.Maintainer is by confirming judged result, can be simply and correctly confirm necessity thatultrasonic detector 200 is safeguarded.
According to the 5th embodiment, the quality of each passage is judged one by one, and in order to judge the fine or not independent reference range of having used respectively.Therefore, can consider the difference of the characteristic of each passage, more suitably judge.
According to the 5th embodiment, because eigenvalue used amplitude, center frequency value and bandwidth value, so can consider from many aspects reasonably to judge after the feature of reflection ultrasonic signal.
According to the 5th embodiment, not only consider the eigenvalue of reflection ultrasonic signal, considered that also the degree of deviation of this eigenvalue is judged quality.Therefore, can be with each eigenvalue all in its reference range but the deviation of eigenvalue becomes large situation is judged as abnormal condition.
[the 6th embodiment]
Figure 28 relates to the block diagram of characteristic structure of themaster unit 700 of the 6th embodiment for expression.Only represent the place different from the structure of the 5th embodiment among Figure 28, the structure of not shown part is the same with the 5th embodiment (Figure 25).And among Figure 28, the part identical with Figure 24 and Figure 25 is with identical symbolic representation, and description is omitted.
Judgingpart 710 shown in Figure 28 comprises the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f and weighting judging part 710h.In addition in thestorage medium 707 exceptbenchmark database 707a, also be provided with and judge weighted data storehouse (judging weighting DB) 707b.
Weighting judging part 710h is the same with comprehensive judgingpart 710g, and the result who judges respectively according to the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f judges comprehensively whetherultrasonic detector 200 is normal.Butweighting judging part 710h is weighted each judged result according to being stored in the weighted data of judging weighted data storehouse 707b.Thenweighting judging part 710h each judged result after according to weighting is carried out above-mentioned comprehensive judgement.
Judge recorded and narrated among theweighted data storehouse 707b represent every kind ofultrasonic detector 200, to the weighted data of the method for weighting of each judged result.
In themaster unit 700 of the 6th embodiment of this spline structure, under the control ofcontrol unit 711, weighted data that will be corresponding with the kind ofultrasonic detector 200 is by judging thatweighted data storehouse 707b sends to weighting judging part 710h.Then,weighting judging part 710h judges to the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f that respectively the result of quality is weighted, and then finally judges the quality of each passage according to the judged result after these weightings according to above-mentioned weighted data.Andweighting judging part 710h judges the quality ofultrasonic detector 200 according to the fine or not judged result of all passages.Weighting judging part 710h is with the fine or not judged result of each passage and the fine or not judged resultnotice control unit 711 ofultrasonic detector 200.
Like this, according to the 6th embodiment, can reach the result same with the 5th embodiment.And according to the 6th embodiment, in amplitude, center frequency value, bandwidth value, amplitude excursion degree, the mid frequency degree of deviation and the bandwidth degree of deviation respectively in the different and different situations of influence degree with the kind ofultrasonic detector 200 toultrasonic detector 200, by considering above-mentioned factor, can carry out more rational quality and judge.
[the 7th embodiment]
Figure 29 relates to the block diagram of characteristic structure of themaster unit 700 of the 7th embodiment for expression.Only represent the place different from the structure of the 5th embodiment (Figure 25) among Figure 29, the structure of not shown part is the same with the 5th embodiment.And among Figure 29, the part identical with Figure 24, Figure 25 and Figure 28 is with identical symbolic representation, and description is omitted.
As shown in figure 29, judgingpart 710 also has the 710i of weighting section, 710j, 710k, 710m, 710n, 710p except having the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f, weighting judging part 710h.In addition, judge theweighted data storehouse 707b except being provided with in thestorage medium 707, also be provided withother benchmark database 707c.
The judged result of the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e and BWdeviation judging part 710f is input to respectively the 710i of weighting section, 710j, 710k, 710m, 710n, 710p.The 710i of weighting section, 710j, 710k, 710m, 710n, 710p be according to the weighted data that is stored inbenchmark database 707c, and the judged result of above-mentioned input is weighted.Be input toweighting judging part 710h by each judged result after the 710i of weighting section, 710j, 710k, 710m, 710n, the 710p weighting.
Figure 30 represents the structure of benchmark database 707c.And among Figure 30, the part identical with Figure 26 is with identical symbolic representation, and description is omitted.
Benchmark database 707c comprises theother benchmark database 772 of a plurality of detectors.Record benchmark data and the weighted data determined after the various different types of ultrasonic detector characteristics of consideration in theother benchmark database 772 of these detectors.Theother benchmark database 772 of detector comprises respectivelyV benchmark database 771a, Fo benchmark database 771b,BW benchmark database 771c and weighted data storehouse (weighting DB) 772a.
Weighted data storehouse 772a as shown in figure 30, and is corresponding with each passage ofultrasonic detector 200, records and narrates the weighted data about its passage.Weighted data represents to consider the method for weighting that interchannel characteristic difference is determined afterwards.
In themaster unit 700 of the 7th embodiment of said structure, under the control ofcontrol unit 711, weighted data sends to the 710i of weighting section, 710j, 710k, 710m, 710n, 710p by benchmark database 707c.And controlunit 711 makes the judged result of each passage of the V electrical level judging 710a of section, the Fo electrical level judging 710b of section, the BW electrical level judging 710c of section, Vdeviation judging part 710d, Fodeviation judging part 710e, BWdeviation judging part 710f output consistent with the output timing, and weighted data that will be corresponding with each passage sends to the 710i of weighting section, 710j, 710k, 710m, 710n, 710p from benchmark database707c.Control unit 711 is exported weighted data from theother benchmark database 772 of the detector corresponding with the kind ofultrasonic detector 200.
Then, the 710i of weighting section, 710j, 710k, 710m, 710n, 710p are weighted the judged result of inputting according to the weighted data thatbenchmark database 707c sends.Thus, each judged result is weighted in each passage.Then, each judged result after the weighting is input toweighting judging part 710h, carries out the final judgement shown in the 6th embodiment.
Like this, according to the 7th embodiment, can reach the effect same with the 5th embodiment and the 6th embodiment.And, according to the 7th embodiment, owing to the respectively weighting of judged result of amplitude, center frequency value, bandwidth value, amplitude excursion degree, the mid frequency degree of deviation and the bandwidth degree of deviation of each passage, therefore can consider the difference of each channel characteristic, carry out more suitably quality and judge.
[the 8th embodiment]
Figure 31 relates to the block diagram of characteristic structure of themaster unit 700 of the 8th embodiment for expression.Only represent the place different from the structure of the 5th embodiment (Figure 25) among Figure 31, the structure of not shown part is the same with the 5th embodiment.And among Figure 31, the part identical with Figure 24, Figure 25 is with identical symbolic representation, and description is omitted.
As shown in figure 31, judgingpart 710 comprises the deteriorated judgingpart 710q of V level, the deteriorated judgingpart 710r of Fo level, the deteriorated judging part 710s of BW level, the deteriorated judgingpart 710v of V deviation, the deteriorated judgingpart 710w of Fo deviation, the deteriorated judgingpart 710x of BW deviation and comprehensive judging part 710y.In addition, be provided withbenchmark database 707d and obtain in the past data base's (obtaining in the past data DB) 707e in thestorage medium 707.
The deteriorated judging part 710q of V level is according to the amplitude of the up-to-date instrumentation of amplitude analysis unit 706b and obtain in the past the past instrumentation amplitude of data base 707e output, obtains the impairment grade (hereinafter referred to as the amplitude impairment grade) of amplitude.The deteriorated judging part 710q of V level carries out the judgement of quality according to the level impairment grade benchmark data that the amplitude of the amplitude impairment grade of obtaining and benchmark database 707d output is used.The deteriorated judging part 710r of Fo level is according to the center frequency value of the up-to-date instrumentation of mid frequency analytic unit 706c and obtain in the past the past instrumentation center frequency value of data base 707e output, obtains the impairment grade (hereinafter referred to as the mid frequency impairment grade) of center frequency value.The deteriorated judging part 710r of Fo level carries out the judgement of quality according to the level impairment grade benchmark data that the mid frequency of the mid frequency impairment grade of obtaining and benchmark database 707d output is used.The deteriorated judging part 710s of BW level is according to the bandwidth value of the up-to-date instrumentation of bandwidth analysis unit 706d and obtain in the past the past instrumentation bandwidth value of data base 707e output, obtains the impairment grade (hereinafter referred to as the bandwidth impairment grade) of bandwidth value.The deteriorated judging part 710s of BW level carries out the judgement of quality according to the level impairment grade benchmark data that the bandwidth of the bandwidth impairment grade of obtaining and benchmark database 707d output is used.
The deteriorated judging part 710v of V deviation is according to the amplitude excursion degree of the up-to-date instrumentation of amplitude analysis unit 706b and obtain in the past the past instrumentation amplitude excursion degree of data base 707e output, obtains the impairment grade (hereinafter referred to as the amplitude excursion impairment grade) of amplitude excursion.The deteriorated judging part 710v of V deviation carries out the judgement of quality according to the deviation impairment grade benchmark data that the amplitude of the amplitude excursion impairment grade of obtaining and benchmark database 707d output is used.The deteriorated judging part 710w of Fo deviation is according to the mid frequency degree of deviation of the up-to-date instrumentation of mid frequency analytic unit 706c and obtain in the past the past instrumentation mid frequency degree of deviation of data base 707e output, obtains the impairment grade (hereinafter referred to as mid frequency deviation impairment grade) of mid frequency deviation.The deteriorated judging part 710w of Fo deviation carries out the judgement of quality according to the deviation impairment grade benchmark data that the mid frequency of the mid frequency deviation impairment grade of obtaining and benchmark database 707d output is used.The deteriorated judging part 710x of BW deviation is according to the bandwidth degree of deviation of the up-to-date instrumentation of bandwidth analysis unit 706d and obtain in the past the past instrumentation bandwidth degree of deviation of data base 707e output, obtains the impairment grade (hereinafter referred to as bandwidth deviation impairment grade) of bandwidth deviation.The deteriorated judging part 710x of BW deviation carries out the judgement of quality according to the deviation impairment grade benchmark data that the bandwidth of the bandwidth deviation impairment grade of obtaining and benchmark database 707d output is used.
Comprehensive judgingpart 710y judges comprehensively according to the deteriorated judgingpart 710q of V level, the deteriorated judgingpart 710r of Fo level, the deteriorated judging part 710s of BW level, the deteriorated judgingpart 710v of V deviation, the deteriorated judgingpart 710w of Fo deviation and the deteriorated judgingpart 710x of BW deviation fine or not judged result separately whetherultrasonic detector 200 is normal.
Benchmark database 707d has the structure same with benchmark database 707a.Butbenchmark database 707d record level impairment grade benchmark data is put down in writing deviation impairment grade benchmark data to replace the deviation benchmark data simultaneously to replace the level reference data.
Withamplitude analysis unit 706b, mid frequencyanalytic unit 706c andbandwidth analysis unit 706d in the past amplitude, amplitude excursion degree, center frequency value, the mid frequency degree of deviation, bandwidth value and the bandwidth degree of deviation of institute's instrumentation as past instrumentation amplitude, past instrumentation amplitude excursion degree, past instrumentation center frequency value, the past instrumentation mid frequency degree of deviation, past instrumentation bandwidth value with pass by the instrumentation bandwidth degree of deviation and be written to over and obtain among thedata base 707e.
Master unit 700 by the 8th embodiment of said structure is obtained respectively amplitude impairment grade, center frequency value impairment grade, bandwidth impairment grade, amplitude excursion impairment grade, mid frequency impairment grade and bandwidth impairment grade.Then according to above-mentioned each impairment grade whether in the represented reference range of corresponding with it benchmark data, rather than whether each eigenvalue self or its degree of deviation be in reference range, judge each passage quality, except this point difference, other actions are the same with the 5th embodiment.
Like this, according to the 8th embodiment, also can reach the effect same with the 5th embodiment.
Above-mentioned the 5th to the 8th embodiment can have following various variation.
Also can be by the reference range of a plurality of grades of expression in each benchmark data, to normal or unusual degree divided rank.For example, if shown in figure 32 to the normal degree divided rank, maintainer can be confirmed according to these level the deterioration condition ofultrasonic detector 200, carries out being the processing such as prepare of later abnormal.
Each reference value of each passage also can be common.
Also can not consider the degree of deviation, only judge quality according to eigenvalue.
The eigenvalue of considering also can be in amplitude, center frequency value and thebandwidth value 1 or 2 arbitrarily.Can also use above-mentioned value in addition.
Benchmark database 707a, judgeweighted data storehouse 707b,benchmark database 707c,benchmark database 707d or obtain in the past the outside thatdata base 707e also can be installed in master unit 700.At this moment, for example can be byadapter 702 each data base of access.
Level reference data and deviation benchmark data can be recorded and narrated in minute other data base.
The demonstration of the signal that generates according todisplay processing unit 709 also can be undertaken by display unit 712d.For example,display processing unit 709 is connected with image generation unit 712b.Then image generation unit 712b generates video data corresponding to signal that generates withdisplay processing unit 709, and is written tomemory element 712c, is shown by display unit 712d.
Omitmedical diagnosis unit 712 and also can realize the ultrasonic detector diagnostic equipment.
[the 9th embodiment]
Figure 33 represent to relate to the 9th embodiment, have a structure of the diagnostic ultrasound equipment of ultrasonic detector diagnostic function.This diagnostic ultrasound equipment comprises master unit 800 andultrasonic detector 200.
Master unit 800 comprises adapter 801,802,803, transmitting element 804, receiving element 805, instrumentation unit 806, storage medium 807, interface section 808, display processing unit 809, control unit 810 and medical diagnosis unit 811 as shown in figure 33.
Theadapter 201 that is arranged on the diagnosis objectultrasonic detector 200 is installed on the adapter 801.Have in the adapter 801 and the electrode 801a that is arranged on the same quantity ofelectrode 201a in the adapter 201.Whenadapter 201 was installed on the adapter 801, electrode 801a was connected respectively with electrode 201a.Adapter 802 is by being connected with ancillary equipment (not shown) such as the communication cables such as USB cable (not shown).This ancillary equipment is printer, network, PC, keyboard, position indicator, digital camera etc.
Transmitting element 804 sends the pumping signal that is used for excitation ultrasonic oscillator 202a.Transmitting element 804 can send a plurality ofultrasonic oscillator 202a pumping signal separately side by side.The signal that receiving element 805 receives from ultrasonic oscillator 202a.Receiving element 805 can receive the signal that a plurality ofultrasonic oscillator 202a send separately side by side.Receiving element 805 is with the signal output that receives.
Instrumentation unit 806 carries out predefined instrumentation processing according to the reception signal of receiving element 805 outputs.The instrumentation information that obtains is processed with above-mentioned instrumentation in instrumentation unit 806, exports to storage medium 807, interface section 808, display processing unit 809 and control unit 810 under the control of control unit 810.Storage medium 807 is such as semiconductor memory etc.The various information such as the above-mentioned instrumentation information of storage medium 807 storages.The communication process according to the USB standard is for example carried out in interface section 808, realize with ancillary equipment that adapter 802 is connected between communication.The information that display processing unit 809 sends according to above-mentioned instrumentation information and control unit 810 etc. generate the picture signal that is used for displayed map picture on the monitor apparatus that adapter 803 connects.
Control unit 810 comprises for example microprocessor.The each several part of 810 pairs of master units 800 of control unit carries out overall control, realizes being used for the action of diagnostic ultrasound wave detector 200.Control unit 810 also has the function of judging the electric state ofultrasonic detector 200 according to the testing result of the voltage of receiving element 805 detected each passage and instrumentation unit 806.Control unit 810 has the function that obtains the apparent condition quality ofultrasonic detector 200 according to the assigned operation of maintainer input.Control unit 810 has the function that obtains the digital photograph data from the ancillary equipment that adapter 802 connects.And control unit 810 has electric state that the expression of generating judged by above-mentioned functions, the function of the statement data of the statement of the quality of the apparent condition obtained by above-mentioned functions and the digital photo obtained by above-mentioned functions.
Medical diagnosis unit 811 comprises imaging control unit 811a, image generation unit 811b, memory element 811c and display unit 811d.Imaging control unit 811a control transmitting element 804, receiving element 805 and image generation unit 811b are in order to carry out suitable imaging processing according to diagnosis content etc.Image generation unit 811b generates the video data that shows the image that is used for medical diagnosis according to the signal of receiving element 805 outputs.The represented image of video data is the text image of the instrumentation value of the reconstructed image of the layer image relevant with the internal organs of measured body and blood flow and three-dimensional image and so on or expression blood flow rate etc. and variation thereof and figure etc.Memory element 811c stores above-mentioned video data.Display unit 811d shows according to video data.
The following describes the action of the diagnostic ultrasound equipment of above structure.
When utilizingultrasonic detector 200 to carry out the medical diagnosis of measured body, by effectively utilizing medical diagnosis unit 811, can equally with well-known diagnostic ultrasound equipment point out the medical diagnosis Useful Information.
On the other hand, when being necessaryultrasonic detector 200 diagnosed, control unit 810 is read the identifying information of identifyinginformation output unit 204 outputs.Identifying information is the information of eachultrasonic detector 200 of difference.Control unit 810 is according to above-mentioned identifying information, obtains the detector information relevant withultrasonic detector 200 from the data base.The data base can obtain from the ancillary equipment that adapter 802 connects, and also can be stored in the storage medium 807.Detector information comprises such as the outward appearance picture data of the detector title of the information of the user of ultrasonic detector 200 (such as hospital name, client position section's name and address),ultrasonic detector 200 and this detector or maintenance Contract NO etc.
The processing that control unit 810 is implemented for the electric state of judging ultrasonic detector 200.The electric state ofultrasonic detector 200 can be judged according to for example state of the reflection ultrasonic signal ofultrasonic detector 200 receptions.Specifically, as shown in figure 33, test object is arranged in the media such as water in the container such as tank, and excitation ultrasonic oscillator 202a.At this moment, the ultrasonic signal of test object reflection is received by receiving element 805 byultrasonic oscillator 202a, holdingwire 203a,electrode 201a and electrode 801a, relates to the various eigenvalues (amplitude, center frequency value, frequency bandwidth value and group delay time value etc.) of this reflection ultrasonic signal by instrumentation unit 806 instrumentations.Then control unit 810 is judged the electric state ofultrasonic detector 200 according to the eigenvalue of instrumentation unit 806 instrumentations.Judgement, theholding wire 203a such as the quality of reception quality of reflection ultrasonic signal of being judged as of this electric state has or not after the judgement of opening circuit or the comprehensive above-mentioned judgement judgement to the quality ofultrasonic detector 200 etc.
Control unit 810 impels maintainer that the judgement of the quality of several projects of relating to apparent condition is specified.In the present embodiment, require to specify contact unit (lens surface), housing parts, cable unit and adapter section apparent condition separately.Maintainer is judged the quality of above-mentioned projects by the outward appearance of visual examination ultrasonic detector 200.The judgement of contact unit quality comprises such as lens coming off or loose, lens variable color, lens are expanded, gap and lens pit or damage etc. occur lens.The judgement of housing parts quality, comprise break, make dirty, damage and shortcoming etc.The judgement of cable unit quality can consider that damage, crust come off, make dirty and sclerosis etc.Bending, the terminal that the judgement of adapter section quality can consider to contact pin made dirty and shortcoming etc.Then control unit 810 is specified by the maintainer input, obtains the quality ofultrasonic detector 200 apparent conditions.Because the appointment of apparent condition is by carrying out such as the operation of the keyboard that is connected with adapter 802 or pointing device etc., so this indication operation of control unit 810 inputs.
And when the maintainer requirement obtained digital photograph, control unit 810 can pass through adapter 802 and interface section 808, from ancillary equipment such as digital camera that adapter 802 is connected obtain the digital photo data.
Control unit 810 use the judged result of above-mentioned electric state, the apparent condition obtained quality, with the outward appearance picture data of this detectors or the detector information of obtaining, generate as the statement data of the statement that expression is shown in Figure 34.This report book data communication device is crossed interface section 808, exports to the ancillary equipment that adapter 802 connects.For example, to connect, during as the above-mentioned statement data of the printer output of ancillary equipment, printer prints statement shown in Figure 34 thus.And among Figure 34, the judged result of image I 1 expression electric state.The quality of image I 2 expression apparent conditions.Image I 3 is the outward appearance photo of the ultrasonic detector after diagnosing.And this image I 3 can change this photo into when the prompting of the photo of maintainer requirement digital camera shooting.
According to above-mentioned the 9th embodiment, can automatically generate the electric state that represents respectivelyultrasonic detector 200 and the statement of apparent condition.By utilizing this report book, maintainer can be reported to the owner and user easily and suitably.And, owing to also point out the outward appearance photo of ultrasonic detector, thus compare with only pointing out the detector model name, easier for the assurance that relates to which ultrasonic detector of reporting.And the photo of the present situation that this photo is taken as digital camera can confirm that directly damage, crust come off, make dirty etc. by photo, and is more practical.
This 9th embodiment can be implemented following various variation.
Also can input unusual generating unit and the unusually appointment of content in the logarithmic code photo, for example shown in Figure 35, will represent that the figure of unusual generating unit and unusual content synthesizes digital photograph, be illustrated in the statement.
Can also quality or a digital photograph with apparent condition be illustrated in the statement.Perhaps can input the expression maintainer other information such as being seen letter string, with this information representation in statement.
By having the matrix switch of multiplexer structure, can be with transmitting element 804 and receiving element 805 as 1 channel design.Thus, can reduce the circuit scale of transmitting element 804 and receiving element 805.
The various appearance informations that will be referred to the various failure conditions (being actually the situation that is grouped as inventory) of contact unit, housing parts, cable unit and adapter section judge that with detector information and apparent condition information is corresponding, are stored in the storage medium.The selection that can also judge the detector information apparent condition according to maintainer is read behind the appearance information of above-mentioned storage medium by retrieval and/or designated store, obtains and points out.Specifically, one or more representational fault appearance informations that contact unit, housing parts, cable unit and adapter section etc. are distinguished by the position with store after detector information and/or judgement project are corresponding, read (in case of necessity figure being processed) according to the detector information judgement project that maintainer is selected, obtain thus suitable appearance information.And appearance information also can use the computer graphic of expression apparent condition.
The demonstration of the signal that also can generate according to display processing unit 809 is undertaken by display unit 811d.For example, display processing unit 809 is connected with image generation unit 811b.Then, image generation unit 811b generates video data corresponding to signal that generates with display processing unit 809, and is written to memory element 811c, is shown by display unit 811d.
Omit medical diagnosis unit 811 and also can realize the ultrasonic detector diagnostic equipment.
[the 10th embodiment]
Figure 36 represent to relate to the 10th embodiment, have a structure of the diagnostic ultrasound equipment of ultrasonic detector diagnostic function.
This diagnostic ultrasound equipment comprisesmaster unit 900 andultrasonic detector 200.
Master unit 900 comprises adapter 901,902,903, transmittingelement 904, receivingelement 905,instrumentation unit 906,storage medium 907,interface section 908,display processing unit 909,control unit 910 andmedical diagnosis unit 911.
Adapter 201 is installed on the adapter 901.Adapter 901 has and theelectrode 901a that is arranged on the same quantity ofelectrode 201a in the adapter 201.Whenadapter 201 was installed on theadapter 901,electrode 901a was connected respectively withelectrode 201a.Adapter 902 is by being connected with ancillary equipment (not shown) such as the communication cables such as USB cable (not shown).This ancillary equipment is printer, network, PC, keyboard, position indicator etc.Adapter 903 is connected with monitor apparatus (not shown) by monitor cable (not shown).
Transmittingelement 904 sends the pumping signal that is used for excitation ultrasonic oscillator202a.Transmitting element 904 can send a plurality ofultrasonic oscillator 202a pumping signal separately side by side.The signal that receivingelement 905 receives from ultrasonic oscillator202a.Receiving element 905 can receive the signal that a plurality ofultrasonic oscillator 202a send separately side byside.Receiving element 905 is with the signal output that receives.
Instrumentation unit 906 carries out predefined instrumentation processing according to the reception signal of receivingelement 905outputs.Instrumentation unit 906 is processed the instrumentation information that obtains with expression and is exported tostorage medium 907,interface section 908,display processing unit 909 andcontrol unit 910 under the control ofcontrol unit 910 by above-mentionedinstrumentation.Storage medium 907 is such as semiconductor memory etc.The various information such as the above-mentioned instrumentation information ofstorage medium 907 storages.Carry out and the communication process that for example meets the USBstandard interface section 908, realize with ancillary equipment thatadapter 902 is connected between communication.The information that displayprocessing unit 909 sends according to above-mentioned instrumentation information andcontrol unit 910 etc. generate the picture signal that is used for the monitor apparatus displayed map picture that connects at adapter 903.
Control unit 910 comprises for example microprocessor.The each several part of 910 pairs ofmaster units 900 of control unit carries out overall control, realizes being used for the action of diagnostic ultrasound wave detector 200.Control unit 910 also has the function of diagnosing each channel status according to the testing result of the voltage of receivingelement 905 detected each passage and instrumentation unit 906.Control unit 910 has controldisplay processing unit 909 and generates with the setting position of each electrode 201a inadapter 201 and comprise the function of the above-mentioned check result of passage of thiselectrode 201a video data corresponding, that shown by figure.
Medical diagnosis unit 911 comprisesimaging control unit 911a,image generation unit 911b,memory element 911c and display unit 911d.Imaging control unit 911acontrol transmitting element 904, receivingelement 905 andimage generation unit 911b are in order to carry out suitable imaging processing according to diagnosis content etc.Image generation unit 911b generates the video data that shows the image that is used for medical diagnosis according to the signal of receivingelement 905 outputs.The represented image of video data is the text image of the instrumentation value of the reconstructed image of the layer image relevant with the internal organs of measured body and blood flow and three-dimensional image and so on or expression blood flow rate etc. and variation thereof and figure etc.Memory element 911c stores above-mentioned videodata.Display unit 911d shows according to video data.
Figure 37 represents an example of the outward appearance of theadapter 201 among Figure 36.Adapter 201 a plurality ofelectrode 201a shown in Figure 37 are set torectangular.Electrode 201 shown in Figure 37 is provided with 2 group 15 * 12 rectangular electrode group, and 360electrode 201a are arranged altogether.Part among these 360electrode 201a is connected with holding wire 203a.For example, whenultrasonic detector 200 was made of 128 passages, 128holding wire 203a were connected with 128 electrode 201a respectively.Other electrode 201a or be connected with identifying information output unit 24, perhaps be connected Figure 36 with earth lead all not shown with power line) be connected.Ultrasonic detector 200 exists such as the not equal a plurality of machines ofport number.Adapter 201 shown in Figure 37 can be common in these a plurality of machines.Therefore, according to the difference of machine, the quantity that connects from holdingwire 203a in 360 electrodes is also different.
The following describes the action of the diagnostic ultrasound equipment of above structure.
When utilizingultrasonic detector 200 to carry out the medical diagnosis of measured body, by effectively utilizingmedical diagnosis unit 911, can equally with well-known diagnostic ultrasound equipment point out the medical diagnosis Useful Information.
On the other hand, when being necessary each channel status of ultrasonic detector 200 diagnosed, control unit 910 is judged the electrode 201a that belongs to the passage that should judge its state among a plurality of electrode 201a of adapter 201.Specifically, control unit 910 is at first read the identifying information of identifying information output unit 204 outputs.Then, control unit 910 is judged the machine of the ultrasonic detector 200 that is connected with adapter 901 according to above-mentioned identifying information.Identifying information is the information of each ultrasonic detector 200 of difference, does not generally comprise the information that represents machine.Control unit 910 is judged the machine of ultrasonic detector 200 by with reference to the data base who records the machine information corresponding with various identifying informations.The data base can from ancillary equipment that adapter 902 is connected obtain, also can be stored in the storage medium 907.In addition, comprise the information that represents machine in the identifying information, also can directly judge according to this information the machine of ultrasonic detector 200.Then, control unit 910 is judged the various functions of the electrode 201a in the above-mentioned machine after judging with reference to above-mentioned stating according to storehouse or other data bases.And, if only the ultrasonic detector 200 of the machine that the function of each electrode 201a is identical can omit above-mentioned processing as diagnosis object.
The state of 910 pairs of each passages that should diagnose after above-mentioned judgement of control unit is diagnosed.The diagnostic method of channel status can be for arbitrarily.The state of the reflection ultrasonic signal that for example can receive according to each passage is judged the state of passage.Specifically, as shown in figure 36, test object is arranged in the media such as water in the container such as tank excitation ultrasonic oscillator 202a.At this moment, the ultrasonic signal of test object reflection is received by receivingelement 905 byultrasonic oscillator 202a, holdingwire 203a,electrode 201a andelectrode 901a, and the various data that relate to this reflection ultrasonic signal are adopted by instrumentation unit 906.Then controlunit 910 is judged the state of each passage according to the data ofinstrumentation unit 906 employings.The indicial response characteristic of the voltage of holdingwire 203a from DC voltage to holdingwire 203a that perhaps, can be when applying and by the bias voltage that is arranged on electronic circuits (not shown) output in theultrasonic detector 200, the state of diagnosis passage.
After should carrying out the finishing all about the diagnosis of passage of condition diagnosing,control unit 910 generates the video data of expression diagnostic results at display processing unit 909.The video data that displayprocessing unit 909 generates sends to monitor apparatus by adapter 903.Monitor apparatus shows the image that represents diagnostic result according to above-mentioned video data.
Thisdiagnostic ultrasound equipment 900 can show diagnostic result by 3 kinds of display packings of the 1st to the 3rd.About using any in these 3 kinds of display packings, preferably determined by user's appointment, show according to user's needs.
Figure 38 represents the example by the image of the 1st display packing demonstration.
Image shown in Figure 38, take theexpression adapter 201 inelectrode 201a the configuration pattern computer graphic as the basis.Then, will with basic figure in be arranged on the relevant diagnostic result of passage under eachlocational electrode 201a by the computer graphic that color represents, synthesize on above-mentioned basic figure.And among Figure 38, represent the difference of color by the kind that changes shade.In addition, in the image shown in Figure 38, on the position of theelectrode 201a that belongs to the passage that notes abnormalities, the synthetic numeral that its channel number of expression is arranged.
Figure 39 represents the example by the image of the 2nd display packing demonstration.
Image shown in Figure 39, corresponding with the numbering of each passage, connector position information and diagnostic result that expression belongs to the position ofelectrode 201a inadapter 201 of this passage are represented by literal.
Connector position information is combined to form by the line number of each row of the matrix ofelectrode 201a in theadapter 201 and the column number of Ge Lie.For example,adapter 201 shown in Figure 38 forms the matrix that 30 row * 12 are listed as byelectrode 201a, and 30 row are marked line number with A~Z and a~g respectively, and 12 row are respectively with 1~12 mark column number.In the example of Figure 39, channel number is that the connector position information representation of the passage of " 1 " is " A-12 ".This be expression belong to channel number for the position of theelectrode 201a of the passage of " 1 " at 12 capable row of A.
Figure 40 A, 40B represent the example by the image of the 3rd display packing demonstration.
Image shown in Figure 40 A, the 40B be the real image I 11 of outward appearance of theadapter 201 that will take as the basis, be used for representing the configuration ofadapter 201 electrode 201a.Then, shown in Figure 40 A, only show above-mentioned real image I 11 and pointer P in the starting stage.
Under this state,control unit 910 is by the position indicator input user's who for example is connected withadapter 902 pointer operation.Then according to this pointer operation, moving hand P.
Shown in Figure 40 B, when pointer P being moved on the position of arbitrary electrode of appointment on the real image I 11,control unit 910 is update image shown in Figure 40 B, and is synthetic and show the image I 12 of the diagnostic result of passage under the above-mentioned formulation electrode of expression.
As mentioned above, according to present embodiment, the diagnostic result relevant with each passage is corresponding demonstration of position in theadapter 201 with theelectrode 201a that belongs to each passage.Therefore, when arbitrary passage produced fault, maintainer only by visual, just can learn easily which theelectrode 201a that belongs to this passage is.Can tell easily theholding wire 203a that is connected with specific electrode 201a.In addition, by along the above-mentionedholding wire 203a that tells, can tell easily theultrasonic oscillator 202a that belongs to same passage with above-mentioned specific electrode 201a.Thus, maintainer can bedistinguished electrode 201a,ultrasonic oscillator 202a and theholding wire 203a of the passage that consists of abnormal easily, therefore, can identify easily the position that fault occurs.Its result, owing to can shorten the identification fault generating unit required time of position, so can shorten the needed time of the repairing ofultrasonic detector 200.
This 10th embodiment can be implemented following various variation.
3 kinds of display packings of the 1st to the 3rd can both show diagnostic result, but can only utilize a kind or 2 kinds of display packings to show.
Also the base image in the 1st display packing can be changed into the real image that uses in the 3rd display packing.
Also the base image in the 3rd display packing can be changed into the basic computer graphic that uses in the 1st display packing.
Also can generate the information that is used for the prompting diagnostic result by the reminding method beyond showing.For example, can generate the employed printed data of above-mentioned image that printer is printed.At this moment, if generate the printed data be illustrated in the image behind the synthetic above-mentioned image on the employed prescribed form of statement, can be easily and automatically generate the statement that represents as mentioned above understandable diagnostic result.
By having the matrix switch of multiplexer structure, can be with transmittingelement 904 and receivingelement 905 as 1 channel design.Thus, can reduce the circuit scale of transmittingelement 904 and receivingelement 905.
The demonstration of the signal that generates according todisplay processing unit 909 can be undertaken by display unit 911d.For example,display processing unit 909 is connected with image generation unit 911b.Then,image generation unit 911b generates video data corresponding to signal that generates withdisplay processing unit 909, and is written tomemory element 911c, is shown bydisplay unit 911d.
Also can omitmedical diagnosis unit 911 and realize the ultrasonic detector diagnostic equipment.
[the 11st embodiment]
Figure 41 represent to relate to the 11st embodiment, have a structure of the diagnostic ultrasound equipment of ultrasonic detector diagnostic function.This diagnostic ultrasound equipment comprisesmaster unit 1000 andultrasonic detector 200.
Master unit 1000 comprisesadapter 1001,1002,1003, transmittingelement 1004, receivingelement 1005,instrumentation unit 1006,storage medium 1007,interface section 1008,display processing unit 1009, imagesimulation handling part 1010,control unit 1011 andmedical diagnosis unit 1012.
Theadapter 201 that is arranged on theultrasonic detector 200 is installed on the adapter 1001.Adapter 1001 has and theelectrode 1001a that is arranged on the same quantity ofelectrode 201a on the adapter 201.Whenadapter 201 was installed on theadapter 1001,electrode 1001a was connected respectively withelectrode 201a.Adapter 1002 is by being connected with ancillary equipment (not shown) such as the communication cables such as USB cable (not shown).This ancillary equipment is printer, network, PC, keyboard, positionindicator etc.Adapter 1003 is connected with monitor apparatus (not shown) by monitor cable (not shown).
Transmittingelement 1004 sends the pumping signal that is used for excitation ultrasonic oscillator202a.Transmitting element 1004 can send among a plurality ofultrasonic oscillator 202a pumping signal separately side by side.The signal that receivingelement 1005 receives from ultrasonic oscillator202a.Receiving element 1005 can receive the signal that a plurality ofultrasonic oscillator 202a send separately side byside.Receiving element 1005 is with the signal output that receives.
Instrumentation unit 1006 carries out predefined instrumentation processing according to the reception signal of receivingelement 1005outputs.Instrumentation unit 1006 will represent to process the instrumentation information that obtains by above-mentioned instrumentation, export tostorage medium 1007,interface section 1008,display processing unit 1009 orcontrol unit 1011 under the control of control unit 1011.Storage medium 1007 is such as semiconductor memory etc.The various information such as the above-mentioned instrumentation information ofstorage medium 1007 storages.Carry out and the communication process that for example meets the USBstandard interface section 1008, realize with ancillary equipment thatadapter 1002 is connected between communication.The information that displayprocessing unit 1009 sends according to above-mentioned instrumentation information andcontrol unit 1011 etc. generate the picture signal that is used for the monitor apparatus displayed map picture that connects atadapter 1003.
Imagesimulation handling part 1010 comprises for example microprocessor.Imagesimulation handling part 1010 generates analog image by image simulation, and above-mentioned image simulation is to using the virtual supersonic detector constructed bycontrol unit 1011 or the diagnostic ultrasound equipment of desirable ultrasonic detector to simulate.
Control unit 1011 comprises for example microprocessor.The each several part of 1011 pairs ofmaster units 1000 of control unit carries out overall control, realizes being used for the action of diagnostic ultrasound wave detector 200.Control unit 1011 also has the function of obtaining the eigenvalue of ultrasonic reflections signal according to the instrumentation result of instrumentation unit 1006.Control unit 1011 has the function of constructing the virtual supersonic detector according to above-mentioned characteristicquantity.Control unit 1011 also has the function of the statement data that generate the expression statement, and above-mentioned statement synthesizes the analog image that imagesimulation handling part 1010 generates.
Medical diagnosis unit 1012 comprisesimaging control unit 1012a,image generation unit 1012b,memory element 1012c and display unit 1012d.Imaging control unit 1012acontrol transmitting element 1004, receivingelement 1005 andimage generation unit 1012b are in order to carry out suitable imaging processing according to diagnosis content etc.Image generation unit 1012b generates the video data that shows the image that is used for medical diagnosis according to the signal of receivingelement 1005 outputs.The represented image of video data is the text image of the instrumentation value of the reconstructed image of the layer image relevant with the internal organs of measured body and blood flow and three-dimensional image and so on or expression blood flow rate etc. and variation thereof and figure etc.Memory element 1012c stores above-mentioned videodata.Display unit 1012d shows according to video data.
The following describes the action of the diagnostic ultrasound equipment with said structure.
When utilizingultrasonic detector 200 to carry out the medical diagnosis of measured body, by effectively utilizingmedical diagnosis unit 1012, can equally with well-known diagnostic ultrasound equipment point out the medical diagnosis Useful Information.
On the other hand, during diagnosticultrasound wave detector 200, in the media such as water of maintainer in the containers such as tank shown in Figure 41 test object is set, andcontact unit 202 and test object are oppositely arranged.
When theultrasonic detector 200 that isnecessary adapter 1001 is connected was diagnosed,control unit 1011 was carried out respectively the processing shown in the processing shown in Figure 42 A and Figure 42 B.
Among the step Sd1 among Figure 42 A,control unit 1011 is collected the instrumentation data.Specifically,control unit 1011 is by transmittingelement 1004 excitation ultrasonic oscillator 202a.Then,control unit 1011 makes receivingelement 1005 receive the ultrasonic signal of test object reflection byultrasonic oscillator 202a, holdingwire 203a,electrode 201a and electrode1001a.Control unit 1011 makesinstrumentation unit 1006 adopt the various data that relate to this reflection ultrasonicsignal.Instrumentation unit 1006 is stored in the data that adopt in the storage medium 1007.The collection of these instrumentation data is carried out respectively by passage.
Among the step Sd2,control unit 1011 carries out signal analysis.That is,control unit 1011 is according to the instrumentation data analysis reflection ultrasonic signal that is stored in thestorage medium 1007, obtains the eigenvalue in the reflection ultrasonic signal of each passage.Eigenvalue comprises amplitude, center frequency value, frequency bandwidth value or group delay time value etc.In the present embodiment, obtain respectively these amplitudes, center frequency value, frequency bandwidth value and group delay.Among the step Sd3,control unit 1011 is kept at amplitude data, mid frequency data, frequency bandwidth data and the group delay data of each value of the above-mentioned expression of obtaining in thestorage medium 1007.
Among the step Sd4,control unit 1011 is constructed to imagesimulation handling part 1010 indication virtual supersonic detectors.Imagesimulation handling part 1010 receives this indication, according to the above-mentioned amplitude of obtaining, center frequency value, frequency bandwidth value and group delay time value, constructs the virtual supersonic detector.Among the step Sd5, the enforcement of the image simulation of the above-mentioned virtual supersonic detector of constructing is used incontrol unit 1011 indications.Imagesimulation handling part 1010 receives this indication, and the diagnostic ultrasound equipment that has used above-mentioned virtual supersonic detector is carried out image simulation.This image simulation can use well-known method.For example, in the image simulation according to point spread function (PSF), the Transceiver Features parameter of grid array uses above-mentioned eigenvalue to obtain.Imagesimulation handling part 1010 is stored in the result's of above-mentioned image simulation image in thestorage medium 1007 as the detector check image.
Among the step Se1 of Figure 42 B,control unit 1011 is read the identifying information of identifyinginformation output unit 204 outputs.Then, among the step Se2,control unit 1011 is obtained the relevant detector information of machine of theultrasonic detector 200 that connects with adapter 1001.The machine ofultrasonic detector 200 is judged according to above-mentioned identifying information.Identifying information is the information of eachultrasonic detector 200 of difference, does not generally comprise the information that represents machine.Control unit 1011 is judged the machine ofultrasonic detector 200 by with reference to the data base who records the machine information corresponding with various identifying informations.The data base can from ancillary equipment thatadapter 1002 is connected obtain, also can be stored in the storage medium 1007.In addition, also can comprise the information that represents machine in the identifying information, directly judge the machine ofultrasonic detector 200 according to this information.Detector information is the information that comprises the ideal value of above-mentioned eigenvalue in eachmachine.Control unit 1011 is obtained detector information from above-mentioned data base or other data bases.And, if only with theultrasonic detector 200 of single machine as diagnosis object, can omit above-mentioned processing.
Among the step Se3,control unit 1011 is constructed desirable ultrasonic detector according to the represented eigenvalue of the above-mentioned detector information of obtaining.Among the step Se4, the enforcement of the image simulation of the above-mentioned desirable ultrasonic detector of constructing is used incontrol unit 1011 indications.Imagesimulation handling part 1010 receives this indication, and the diagnostic ultrasound equipment that has used above-mentioned desirable ultrasonic detector is carried out image simulation.Imagesimulation handling part 1010 is stored in the result's of above-mentioned image simulation image in thestorage medium 1007 with reference to image as detector.
Among the step Sd5 of Figure 42 A,control unit 1011 is read detector check image and detector with reference to image fromstorage medium 1007, generates the comparison displayed map picture that these images are shown side by side.Figure 43 represents an example of this comparison displayed map picture.Be used for showing that at monitor apparatus relatively the signal of displayed map picture is generated under the control ofcontrol unit 1011 bydisplay processing unit 1009, and byadapter 1003 outputs.
In addition,control unit 1011 can generate the print data that comprises comparison displayed map statement picture, as shown in figure 34.This print data sends to printer byinterface section 1008 andadapter 1002 and prints.
According to above-mentioned the 11st embodiment, can show the detector check image that obtains by the image simulation that uses the virtual supersonic detector, this virtual supersonic sniffer is the state of theultrasonic detector 200 judged from the reception situation of the ultrasonic signal of test object reflection of reflection and the virtual supersonic detector constructed.Check detector image according to this, maintainer can be easily and is suitably recognized the deteriorated influence degree to diagnostic imaging ofultrasonic detector 200.
In addition, according to the 11st embodiment, have detector that the image simulation of the desirable ultrasonic detector of ideal characterisitics obtains with reference to image by use, shown with above-mentioned detector check image.Therefore maintainer with reference to image, can be more prone to and suitably recognize the deteriorated influence degree to diagnostic imaging ofultrasonic detector 200 by comparator probe check image and detector.
According to the 11st embodiment, can automatic printing comprise the statement of detector check image.Maintainer can be reported the present situation of thisultrasonic detector 200 by using the statement of being printed by this function easy-to-understandly to the user ofultrasonic detector 200.
The 11st embodiment can be implemented following various variation.
In the image simulation, can generate the image that B mode image, M mode image or doppler image etc. are generated by diagnostic ultrasound equipment.Thus, maintainer can more specifically be recognized the influence degree to the diagnostic imaging of reality.
Detector can use preprepared image with reference to image.
Initial characteristic in the time of also can be according to the dispatching from the factory of theultrasonic detector 200 that checks object etc. is constructed desirable ultrasonic detector, obtains detector with reference to image by the image simulation that utilizes this ideal ultrasonic detector.At this moment, the various characteristics of theultrasonic detector 200 in the original state when dispatching from the factory etc. or average characteristics of every batch etc. are registered among the data base.
Also the detector check image that obtains in the past can be stored instorage medium 1007 or be registered in the external data base, with this in the past detector check image use with reference to image as detector.
Can not show with reference to detector image yet.
Check that detector image also can be input to ancillary equipment, and be used for arbitrarily for example showing and generating statement.
By having the matrix switch of multiplexer structure, can be with transmittingelement 1004 and receivingelement 1005 as 1 channel design.Thus, can reduce the circuit scale of transmittingelement 1004 and receivingelement 1005.
The demonstration of the signal that generates according todisplay processing unit 1009 also can be undertaken by display unit 1012d.For example,display processing unit 1009 is connected with image generation unit 1012b.Then,image generation unit 1012b generates video data corresponding to signal that generates withdisplay processing unit 1009, and is written tomemory element 1012c.
Also can omitmedical diagnosis unit 1012 and realize the ultrasonic detector diagnostic equipment.
And, more than a plurality of functions in the ultrasonic detector diagnostic function shown in each embodiment, also can be included in a diagnostic ultrasound equipment or the ultrasonic detector diagnostic equipment.
The present invention can add other advantages and make amendment.The present invention is not limited to above-mentioned embodiment, and only otherwise break away from main idea of the present invention, the present invention can also carry out various modifications.