Portable mechanics of muscle parameter and muscular force are in body supersonic detection device and methodTechnical field
The present invention relates to biomethanics field, in particular to a kind of portable mechanics of muscle parameter and muscular force are in body ultrasoundDetection device and method.
Background technique
Muscle is the power resources that organism completes various movements, and the kinetic characteristics of muscular force are biologies in motion processOne of main contents of mechanics study.Facilitate the research model of extension biomethanics to the further investigation that muscular force is quantitatively evaluatedFarmland promotes the development of the subjects such as bionic mechanical design, biomedicine, athletics sports, but due to the redundancy of muscle, individual differenceAnisotropic, diversity and the limitation of experiment made on the living, so that it is very tired to carry out the research work that organism muscular force is quantitatively evaluatedOne of the problem of difficulty, the quantization of especially single muscle power is even more biomethanics field urgent need to resolve.
Currently, organism muscular force can be obtained by directly measuring with two methods of non-destructive testing, directly measurement belongs toInvasive measurement, due to ethics etc., this method is difficult to use in living body study on large sample, unlikely clinicallyIt uses, therefore, many scholars start the research for the non-destructive testing technology for being dedicated to muscular force in recent years, and more commonly used at present isSurface EMG detection, but using surface electromyogram signal, to muscle force estimation, there is also many limitations, this is because tableFacial muscle electric signal is the superposition for the action potential that numerous muscular movement units generate in contraction process, it is difficult to be accurately obtainedThe corresponding electromyography signal of single muscle power, then plus surface electromyogram signal belong to a kind of faint bioelectrical signals, in the mistake of acquisitionIt is easy the interference by outside noise in journey, so that original faint bioelectrical signals are difficult to, causes the precision of detection bigIt gives a discount, although domestic and foreign scholars are to improve muscular force Evaluation accuracy many trials have also been made, accuracy and practicability are also notEnough ideals.By above-mentioned analysis it is found that still personal muscle strength is quantitatively evaluated without easy reliable method at present,It needs to solve the problems, such as that muscular force is quantitatively evaluated by new Research approach.
Ultrasound examination is real-time one kind, high resolution, detects fireballing lossless detection method, since appearance, justIt is paid close attention to by scholars.It not only can intuitively show the muscle of the static state such as meat fiber length, muscle thickness, pinniform angleShape-structure parameter, and the dynamic state change such as can recorde muscle stretch, contraction.Along with ultrasound examination has behaviourMake simple, cheap, the advantages that having a safety feature, quickly grow in recent years and obtains important answer in muscular states assessmentWith.
2013, Chen Xing, Fan Jian equality of Shenzhen Institutes of Advanced Technology, Chinese Academy of Science were in patented invention CNA kind of muscular strength appraisal procedure and device, muscular recuperation training tracking appraisal procedure and system have been invented in 103584884 B, have been usedImage Acquisition, extracts sports ground at image preprocessing, and the index of a quantization is extracted from the sports ground, calculates and is fittedMuscular movement amplitude curve out, the reference standard as muscular strength assessment.However, the invention uses continuous ultrasound image measurement muscleMotion amplitude, for muscular strength assessment and rehabilitation training tracking one new reference standard is provided, not to mechanics of muscle performance joinSeveral and muscular force makes quantitative assessment.2015, Baijing Tiantan Hospital Du Lijuan, He Wen etc. were specialA kind of device and ultrasound using ultrasound examination skeletal muscle Mechanics of Machinery parameter is disclosed in benefit invention 104622511 A of CNWave detecting method, invention device include high frame frequency two-dimensional ultrasound instrument, superficial linear array probe, wrist sandbag, timer, speckle trackingTechnology post-processing software；The Ultrasound Instrument is connected with superficial linear array probe, and the wrist sandbag is mounted on the spy of superficial linear arrayIncrease the weight of the probe on head, the image information of the Ultrasound Instrument record exports at through the Speckle tracking imaging later periodReason software the strain of skeletal muscle, strain rate is calculated, device provided by the invention can quantitatively obtain muscle strain,The parameters such as strain rate do not make quantitative assessment to mechanics of muscle performance parameter and muscular force.
Summary of the invention
It is an object of the invention to solve the above problem of the existing technology, and provide a kind of portable mechanics of muscle ginsengSeveral and muscular force in body supersonic detection device and method, the present invention have it is portable it is reliable, that Testing index is comprehensive, versatility is good etc. is excellentPoint is truly realized to mechanics of muscle characteristic and muscular force in body, noninvasive, real-time, accurate complete is quantitatively evaluated.
The portable mechanics of muscle parameter and muscular force of the present invention body supersonic detection device be by broad-band ultrasonic probe, it is moreChannel ultrasound system, man-machine interactive system composition, the broad-band ultrasonic probe are super by probe connector interface and multichannelSound system connection, channel ultrasonic system realize the communication with man-machine interactive system by local area network or 3.0 interface of USB；
The channel ultrasonic system includes ultrasound emission module, ultrasonic reception module, ultrasonic signal transmitting-receiving control mouldBlock, signal conditioning module and communication interaction module, it is highly integrated by several piece circuit board, support 128 channel parallels or multiplexing,And local area network or the high speed communication of 3.0 interface of USB realization and man-machine interactive system can be passed through；
The man-machine interactive system includes data analysis and image-forming module, detection information assessment and module of warning, dataLibrary storage and management module and testing result recovering and analysis module；
The broad-band ultrasonic pops one's head in while supporting fundamental wave, harmonic wave and shearing wave elastogram, without frequently replacing, oneBroad-band ultrasonic probe can realize more requirements that broad-band ultrasonic is popped one's head in while being detected, relevant to muscular force multiple to extractCharacteristic parameter provides convenient testing conditions；
The channel ultrasonic system structure is compact, small volume and less weight, supports local area network or 3.0 interface communication of USB, keeps awayThe interminable cable of traditional pci interface is exempted from, has kept integral ultrasonic harmless quantitative assessment device more light and handy portable.
The portable mechanics of muscle parameter and muscular force of the present invention is as follows in body supersonic detection method:
1) user's input module is improved, before testing, operator is needed to input the essential information of detected object, packetInclude: the age, weight, specific detection position, whether there is or not the particulars such as medical history；
2) according to position where detection muscle, selection frequency is suitably popped one's head in and the depth of focus, as superficial place selects heightLow-frequency probe in frequency probe, muscle and deep selection, it is default which loads probe parameter, Signal Pretreatment parameter etc. automaticallyParameter；
3) it in the case where B sweeps mode, doppler mode and shearing wave elastic model, carries out ultrasonic signal acquisition and characteristic value mentionsIt takes；
3.1) B sweeps mode: fine tuning head angle keeps acoustic beam vertical with detected muscle regional area holding, passes through widebandUltrasonic probe transmitting and reception ultrasonic wave, will be interacted when being propagated in muscle due to ultrasound with all particles, thenIn addition the echoing characteristic of muscle different tissues has differences, thus extract in echo-signal with muscular tissue structure, mechanical propertyAnd the relevant characteristic parameter such as stress state；
3.2) doppler mode: the object of movement can make received signal frequency change, and generate frequency displacement, and pass through productionRaw frequency displacement calculates the speed of object of which movement, using this technology, to calculate the speed of blood flow in muscle, calculation formula:
Wherein fDFor frequency displacement, fαFor the supersonic frequency of probe transmitting, fβFor received supersonic frequency of popping one's head in, v is Hemodynamic environmentDegree, c are the velocity of sound, and θ is the angle of acoustic beam and blood vessel；
3.3) shearing wave elastic model: channel ultrasonic system controls broad-band ultrasonic probe and generates continuous focusing all-bottom soundPulse generates lateral shearing wave to motivate inside muscle, on the basis of existing ultrasonic elastograph imaging, introduce tissue stickiness systemNumber solves elasticity of muscle modulus, modulus of shearing mechanical property parameters by elastogram and suitable rheological model, and analysis is cutThe quantitative relationship of propagation velocity Yu mechanics of muscle performance parameter (elasticity modulus, modulus of shearing) is cut, establishes ultrasound in viscoelasticityBiomechanical theory model in tissue；
4) multiple technologies such as ultrasonic signal analysis, mechanical test are combined, the ultrasonic signal feature of different muscular forces is analyzed,The quantitative relationship between mechanics of muscle performance parameter, other ultrasonic feature parameters and muscular force is explored, building muscular force ultrasound is fixedAmount assessment mathematical model；
5) the data analysis in man-machine interactive system and image-forming module can characterize muscular force to multiple according to built-in algorithmCharacteristic parameter be imaged, and to detection image carry out automated graphics enhancing, single muscle Edge intelligence detection etc. it is a series ofProcessing allows manually to be finely tuned for single muscle edge, and supports that measurement is traced in tracking under more graph models, is completed to monolithicThe measurement and quantitative display of mechanics of muscle performance parameter and muscular force；
6) muscle detected value is compared by the module of warning in man-machine interactive system with preset threshold, judges muscle healthState and corresponding sending warning note, realize that the automation of mechanics of muscle performance parameter and muscular force, intelligence are quantitatively evaluated；
7) ultrasonic echo that the database purchase and management module of the detection information described in acquire during can will test(user information, detection are joined for signal, muscle testing result (still image, dynamic image and muscular force etc.) and detection presupposed informationNumber etc.) it is associated and is automatically stored, while printing reports can be generated；
8) the testing result recovering and analysis module described in can be convenient operator's later period and return to entire detection processGu property is analysed in depth, and replay image can carry out quantitative measurment again.
Beneficial effects of the present invention:
1, this ultrasonic detection device overall structure is simple and compact, portable reliable, may be implemented special to biological muscles mechanicsProperty and muscular force body, it is noninvasive, real-time, be quantitatively evaluated；
2, shearing wave elastogram generates shearing wave by pulse inside muscle, and it is true to directly obtain tissueElasticity modulus, shearing mould magnitude, rather than by pressing probe, tissue is obtained with respect to mechanical property parameters；
3, multiple characteristic parameters relevant to muscular force are extracted and carry out image checking, support that survey is traced in tracking under more graph modelsAmount is realized measurement and quantitative display to single muscle mechanical property parameters and muscular force, is had in conjunction with traditional B-scan imageThe advantages that detection accuracy is high, Testing index is comprehensive, versatility is good；
4, man-machine interactive system integrates multiple intelligent processing modules, realizes the letter from signal acquisition to subsequent detection resultAutomation, the intelligence of breathization management, are more suitable in clinical detection and apply, and cost performance is high.
Detailed description of the invention
Fig. 1 is the partial structural diagram of broad-band ultrasonic probe of the present invention.
Fig. 2 is the partial structural diagram of man-machine interactive system of the present invention.
Fig. 3 is detection interface result schematic diagram of the invention.
Fig. 4 is user's input module interface schematic diagram of the invention.
Fig. 5 is the partial structural diagram of channel ultrasonic system of the present invention.
Wherein: 1- broad-band ultrasonic probe；2- probe connector interface；3- man-machine interactive system；4- channel ultrasonic system；3.0 interface of 5-USB；6- local area network.
Specific embodiment
It please refers to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the portable mechanics of muscle parameter and muscular force of the present invention is in bodySupersonic detection device is made of broad-band ultrasonic probe 1, channel ultrasonic system 4, man-machine interactive system 3, and the wideband is superSonic probe 1 is connect by probe connector interface 2 with channel ultrasonic system 4, and channel ultrasonic system (4) passes through local area network(6) or 3.0 interface of USB (5) realizes the communication with man-machine interactive system (3)；
The channel ultrasonic system 4 includes ultrasound emission module, ultrasonic reception module, ultrasonic signal transmitting-receiving control mouldBlock, signal conditioning module and communication interaction module, it is highly integrated by several piece circuit board, support 128 channel parallels or multiplexing,And local area network 6 or the high speed communication of 3.0 interface 5 of USB realization and man-machine interactive system 3 can be passed through；
The man-machine interactive system 3 includes data analysis and image-forming module, detection information assessment and module of warning, dataLibrary storage and management module and testing result recovering and analysis module；
The broad-band ultrasonic probe 1 supports fundamental wave, harmonic wave and shearing wave elastogram simultaneously, without frequently replacing, oneBroad-band ultrasonic probe can be realized more requirements that broad-band ultrasonic is popped one's head in while being detected, it is relevant to muscular force more to extractA characteristic parameter provides convenient testing conditions；
The channel ultrasonic system 4 is compact-sized, small volume and less weight, supports local area network 6 or the communication of 3.0 interface 5 of USB,The interminable cable of traditional pci interface is avoided, keeps integral ultrasonic harmless quantitative assessment device more light and handy portable.
The portable mechanics of muscle parameter and muscular force of the present invention is as follows in body supersonic detection method:
1) user's input module is improved, before testing, operator is needed to input the essential information of detected object, packetInclude: the age, weight, specific detection position, whether there is or not the particulars such as medical history；
2) according to position where detection muscle, selection frequency is suitably popped one's head in and the depth of focus, as superficial place selects heightLow-frequency probe in frequency probe, muscle and deep selection, it is default which loads probe parameter, Signal Pretreatment parameter etc. automaticallyParameter；
3) it in the case where B sweeps mode, doppler mode and shearing wave elastic model, carries out ultrasonic signal acquisition and characteristic value mentionsIt takes；
3.1) B sweeps mode: fine tuning head angle keeps acoustic beam vertical with detected muscle regional area holding, passes through widebandThe transmitting of ultrasonic probe 1 and reception ultrasonic wave, will be interacted when being propagated in muscle due to ultrasound with all particles, thenIn addition the echoing characteristic of muscle different tissues has differences, thus extract in echo-signal with muscular tissue structure, mechanical propertyAnd the relevant characteristic parameter such as stress state；
3.2) doppler mode: the object of movement can make received signal frequency change, and generate frequency displacement, and pass through productionRaw frequency displacement calculates the speed of object of which movement, using this technology, to calculate the speed of blood flow in muscle, calculation formula:
Wherein fDFor frequency displacement, fαFor the supersonic frequency of probe transmitting, fβFor received supersonic frequency of popping one's head in, v is Hemodynamic environmentDegree, c are the velocity of sound, and θ is the angle of acoustic beam and blood vessel；
3.3) shearing wave elastic model: channel ultrasonic system 4 controls broad-band ultrasonic probe 1 and generates continuous focusing low frequencyPing generates lateral shearing wave to motivate inside muscle, on the basis of existing ultrasonic elastograph imaging, introduce tissue stickinessCoefficient solves elasticity of muscle modulus, modulus of shearing mechanical property parameters, analysis by elastogram and suitable rheological modelThe quantitative relationship of propagation velocity and mechanics of muscle performance parameter (elasticity modulus, modulus of shearing) is sheared, establishes ultrasound in glutinous bulletBiomechanical theory model in property tissue；
4) multiple technologies such as ultrasonic signal analysis, mechanical test are combined, the ultrasonic signal feature of different muscular forces is analyzed,The quantitative relationship between mechanics of muscle performance parameter, other ultrasonic feature parameters and muscular force is explored, building muscular force ultrasound is fixedAmount assessment mathematical model；
5) the data analysis in man-machine interactive system 3 and image-forming module can characterize muscle to multiple according to built-in algorithmThe characteristic parameter of power is imaged, and carries out a systems such as automated graphics enhancing, the detection of single muscle Edge intelligence to detection imageColumn processing allows manually to be finely tuned for single muscle edge, and supports that measurement is traced in tracking under more graph models, is completed to listThe measurement and quantitative display of block mechanics of muscle performance parameter and muscular force；
6) muscle detected value is compared by the module of warning in man-machine interactive system 3 with preset threshold, judges that muscle is strongHealth state and corresponding sending warning note, realize that the automation of mechanics of muscle performance parameter and muscular force, intelligence are quantitatively evaluated；
7) ultrasonic echo that the database purchase and management module of the detection information described in acquire during can will test(user information, detection are joined for signal, muscle testing result (still image, dynamic image and muscular force etc.) and detection presupposed informationNumber etc.) it is associated and is automatically stored, while printing reports can be generated；
8) the testing result recovering and analysis module described in can be convenient operator's later period and return to entire detection processGu property is analysed in depth, and replay image can carry out quantitative measurment again.