The detection method of infusion pump and infusion pump control sequentialTechnical field
The present invention relates to technical field of medical equipment more particularly to the detection sides of a kind of infusion pump and infusion pump control sequentialMethod.
Background technology
Infusion pump needs to ensure accurate precision controlling as a kind of Medical Devices of precision.Infusion pump is by electricity at presentMachine squeezes woven hose to realize infusion through pump piece in belt or gear and a series of other transmission device control infusion pumps.
To ensure to be precisely controlled, infusion process needs to increase auxiliary sensor unit, identifies that motor movement and the pump housing squeeze fortuneDynamic correctness, existing infusion pump is generally detected code-disc by two optocoupler sensors, during motor movementOrthogonal coding can be generated, can identify motor drive direction and rotating speed, it is two that this scheme, which needs the quantity of sensor, what code-disc neededRadius is larger, so that infusion pump the space occupied is larger.
Invention content
It is a primary object of the present invention to propose a kind of detection method of infusion pump and infusion pump control sequential, it is intended to reduceInfusion pump the space occupied.
To achieve the above object, a kind of infusion pump provided by the invention, the infusion pump include：Wriggling component, a detectionCircuit and asymmetric code-disc,
The wriggling component is used to drive the infusion liquid in pipe movement being arranged in wriggling component side；
The asymmetry code-disc is connected to wriggling component one end, and is rotated with the wriggling component synchronization；
The detection circuit obtains the rotation information of the asymmetric code-disc, to obtain for detecting the asymmetric code-discObtain the control sequential of the infusion pump.
Preferably, the infusion pump further includes：Driving motor, the wriggling component include spaced several pump pieces andThe gear movement component ratcheting with the driving motor,
The gear movement component is sequentially connected with the pump piece, is driven for passing through the driving motor, so that instituteState pump piece rotation.
Preferably, each pump piece is equipped with a fin towards one end of the woven hose, when the wriggling Component driverWhen liquid in pipe of being infused moves, the fin of at least one pump on piece presses the woven hose；The driving motor is stepping electricityMachine.
Preferably, the infusion pump further includes master control borad, the asymmetry for being detected according to the detection circuitThe rotation information of code-disc controls the driving motor rotation.
Preferably, the detection circuit include an optocoupler sensor for detecting the asymmetric code-disc rotation information andThe circuit board being connect with the optocoupler sensor, the circuit board is used for will be by not right described in optocoupler sensor acquisitionCode-disc rotation information is claimed to be sent to the master control borad.
In addition, to achieve the above object, the present invention also provides a kind of detection method of infusion pump control sequential, the infusionsPump includes wriggling component, detection circuit and asymmetric code-disc, be the described method comprises the following steps：
The level signal of the detection asymmetric code-disc is obtained by the detection circuit, and records the level signal pairThe time answered；
The rotation angle for obtaining the asymmetric code-disc is calculated according to the level signal and the time；
According to the rotation angle of the asymmetric code-disc, the control sequential of the infusion pump is obtained.
Preferably, described that the rotation angle for obtaining the asymmetric code-disc is calculated according to the level signal and the timeAfter include：
When detecting that the rotation angle of the asymmetric code-disc is equal to predetermined angle, control driving motor Accelerating running is pre-Set the time.
Preferably, described when detecting that the rotation angle of the asymmetric code-disc is equal to predetermined angle, control driving electricityThe step of machine Accelerating running preset time includes：
When detecting that the rotation angle of the asymmetric code-disc is equal to predetermined angle, controls the driving motor and accelerate fortuneCapable preset time, and obtain the rotation of the step number of the driving motor operation and the asymmetric code-disc in the preset timeAngle；
Compare the rotation angle of the step number of the driving motor operation and the asymmetric code-disc in the preset time；
If the step number of the driving motor operation and the rotation angle of the asymmetric code-disc are not in the preset timeMatching, then judgement break down to the control operation of the driving motor Accelerating running.
Preferably, described that the rotation angle for obtaining the asymmetric code-disc is calculated according to the level signal and the timeThe step of further include：
It is compared with preset signals according to the level signal, obtains the direction of rotation of the asymmetric code-disc；
When the direction of rotation of the asymmetric code-disc is with preset direction difference, judge that the infusion pump breaks down.
Preferably, the method further includes：
When judging that the infusion pump breaks down, controls the driving motor and stop operating.
Infusion pump of the present invention includes：Wriggling component, a detection circuit and asymmetric code-disc, the wriggling component is for drivingInfusion liquid in pipe movement in wriggling component side is set；The asymmetry code-disc is connected to the wriggling component oneEnd, and rotated with the wriggling component synchronization；The detection circuit is used to detect the rotation status of the asymmetric code-disc, to obtainObtain the control sequential of the infusion pump.By the above-mentioned means, using asymmetric code-disc in infusion pump of the present invention, to pass through detectionWhen circuit detects asymmetric code-disc rotation, the data of level change are detected, according to the rule of level change data, so that it may withJudge that the direction of rotation of code-disc, detection circuit only need to include a sensor, code-disc radius can also suitably reduce, and then subtractFew infusion pump the space occupied.
Description of the drawings
Fig. 1 is the structural schematic diagram of infusion pump first embodiment of the present invention；
Fig. 2 is the side view of infusion pump first embodiment of the present invention；
Fig. 3 is the structural schematic diagram of infusion pump second embodiment of the present invention；
Fig. 4 is the flow diagram of the detection method first embodiment of infusion pump control sequential of the present invention；
Fig. 5 is the flow diagram of the detection method second embodiment of infusion pump control sequential of the present invention；
Fig. 6 is the control in the embodiment of the present invention when detecting that the rotation angle of the asymmetric code-disc is equal to predetermined angleA kind of flow diagram of driving motor Accelerating running preset time processed；
Fig. 7 is to calculate the rotation for obtaining asymmetric code-disc in the embodiment of the present invention according to the level signal and the timeA kind of flow diagram of angle.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of infusion pump.
Referring to Figures 1 and 2, Fig. 1 is the structural schematic diagram of infusion pump first embodiment of the present invention, and Fig. 2 is that the present invention is infusedPump the side view of first embodiment.
In the present embodiment, which includes：Wriggling component 100, a detection circuit 200 and asymmetric code-disc 300, instituteWriggling component is stated for driving the infusion liquid in pipe movement being arranged in wriggling component side, the asymmetry code-disc 300It is connected to described 100 one end of wriggling component, the wriggling component is connected to than asymmetric code-disc 300 as set forth in the present embodiment100 right ends, and rotated synchronously with the wriggling component 100；The detection circuit 200 is used to detect the asymmetric code-disc 300,The rotation information for obtaining the asymmetric code-disc 300, to obtain the control sequential of the infusion pump.
The infusion pump further comprises pump housing (not shown), wriggling component 100, a detection circuit 200 and asymmetric codeDisk 300 be mounted on the pump body, be formed between wriggling component 100 and the pump housing for woven hose by gap.It is being infusedWriggling component 100, which can wriggle, in the process is pressed through the woven hose in the gap, to drive infusion liquid in pipe movement.SpecificallyInfusion pump described in implementation can not also include the pump housing, for example by corresponding fixing device, infusion pump of the present invention is fixedIn places such as desktops so that be formed between wriggling component 100 and desktop in infusion pump of the present invention for woven hose by gap.
Further, it can work independently for convenience of infusion pump, the infusion pump further includes master control borad (figure does not regard), is used for rootThe rotation information of the asymmetric code-disc detected according to the detection circuit controls the driving motor rotation.Certain masterInfusion pump normal operation can also be controlled according to preset order by controlling plate.
Detection circuit 200 includes optocoupler sensor (not shown) and the electricity being connect with the optocoupler sensor in the present embodimentRoad plate (not shown), the optocoupler sensor is for detecting the asymmetric code-disc rotation information, and the circuit board will be for that will lead toIt crosses the asymmetric code-disc rotation information that the optocoupler sensor obtains and is sent to the master control borad, the master control borad is according to instituteThe information for stating circuit board transmission judges the infusion pump whether normal operation.It can also be other sensors in specific implementation,Such as infrared ray.The quantity of the optocoupler sensor is one, in the infusion pump course of work, passes through this optocoupler sensorAsymmetric code-disc 300 can be detected and rotate synchronously the level signal generated with the wriggling component 100.Because of asymmetric code-disc300 be asymmetric, and corresponding level signal sequence is will produce in 300 rotary course of asymmetric code-disc.The present invention passes through inspectionSurvey with the wriggling component 100 rotate synchronously code-disc rotation status, compared with the existing technology in pass through detect driving electricityThe mode of machine motion state, accuracy higher, because may be due to belt or gear by detecting driving motor motion stateIt falls off, leads to driving motor normal operation and wriggling component 100 can not squeeze woven hose in infusion pump, it is defeated to cannot achieveLiquid function.
Further, the infusion pump further includes：Driving motor (not shown), the wriggling component 100 include that interval is setThe several pump pieces 110 and the gear movement component 120 ratcheting with the driving motor set, the gear movement component 120 and instituteIt states pump piece 110 to be sequentially connected, for driving the pump piece 110 by the driving motor.
Specifically, wriggling component described in the present embodiment 100 include spaced several pump pieces 110 and with the drivingThe ratcheting gear movement component 120 of motor, the gear movement component 120 include the gear coordinated with the driving motor, withThe transmission shaft of the gear drive connection, certain wriggling component 100 can not also include gear movement component 120, such asThe driving motor passes through wriggling component 100 described in belt-driven.
In infusion process, it is assumed that be from right to left liquid transmission direction, then driving motor driving wriggling component 100 is wriggledWhen, the pump piece of the rightmost side to the leftmost side presses down in order in wriggling component 100, such as the rightmost side to the leftmost side pump piece successivelyIt presses down, when left pump piece is depressed, right side pump piece is in corresponding and bounces position, and driving motor drives one circle of transmission shaft rotation,Wriggling component 100, which corresponds to, completes a wriggling period, recycles successively, to complete infusion function.The driving motor is steppingMotor can also be other motors in specific implementation.
Infusion pump of the present invention includes：Wriggling component, a detection circuit and not right for driving infusion liquid in pipe movementClaim code-disc, the asymmetry code-disc is located at wriggling component side, and is rotated with the wriggling component synchronization；The detection electricityRoad is used to detect the rotation status of the asymmetric code-disc.By the above-mentioned means, asymmetric code-disc is used in infusion pump of the present invention,When to detect that asymmetric code-disc rotates by detection circuit, the data of level change are detected, according to level change dataRule, so that it may to judge the direction of rotation of code-disc, detection circuit need to include only a sensor, and code-disc radius can also fitWork as reduction, and then reduces infusion pump the space occupied.
Further, it is the squeezing effect for being effectively ensured to woven hose, with reference to Fig. 3, Fig. 3 is that infusion pump second of the present invention is realApply the structural schematic diagram of example.
Each pump piece is equipped with a fin towards one end of the woven hose in the wriggling component 100, when described compactedWhen the dynamic driving of component 100 infusion liquid in pipe movement, the fin of at least one pump on piece presses the woven hose, to effectivelyEnsureing the squeezing effect to woven hose, can prevent in the wriggling period, the liquid installation infusion direction in the woven hose is flowed through,It will not flow back.
The present invention further provides a kind of detection methods of infusion pump control sequential.
It is the flow diagram of the detection method first embodiment of infusion pump control sequential of the present invention with reference to Fig. 4, Fig. 4.
In the present embodiment, the detection method of the infusion pump control sequential includes：
Step S10, the level signal of the detection asymmetric code-disc is obtained by detection circuit, and records the level letterNumber corresponding time；
When using infusion pump, the infusion pump includes wriggling component, detection circuit and asymmetric code-disc, by described defeatedDetection circuit detects in real time in liquid pump, obtains the level signal of the asymmetric code-disc, while recording the level signal and corresponding toTime, specifically, detection circuit includes optocoupler sensor in the present embodiment, in infusion process, asymmetric code-disc with it is describedWriggling component synchronization rotates, and optocoupler sensor measures the signal of level, transmit in real time according to the asymmetric code-disc rotational caseTo the master control borad of infusion pump, master control borad records the duration of each level signal, naturally it is also possible to every in detection circuit recordThe duration of a level signal is then sent to the master control borad.
Step S20 calculates the rotation angle for obtaining the asymmetric code-disc according to the level signal and the time；
It is calculated according to the step S10 level signals obtained and time, specifically, is obtained according in step S10Level signal and the corresponding time calculated because the rotation of asymmetric code-disc is turned around the corresponding level signal week generatedPhase wriggles the period, if obtain multiple wriggling periods, according to the signal and time sometime detected, it is known thatThis moment is located at the position in period of wriggling, to know the angle of asymmetric code-disc rotation；If obtain detection information andLess than the one wriggling period of time, then master control borad is according to the control command of stepper motor, obtain stepper motor step number (if it isDriven using other motors, then can the rotation status that corresponding sensor obtains motor be set in motor), according to presetStepper motor step number and asymmetric code-disc rotation angle relationship, such as 3 circle of stepper motor rotation, asymmetric code-disc pair1 circle should be rotated, the rotation angle of asymmetric code-disc is obtained.
Step S30 obtains the control sequential of the infusion pump according to the rotation angle of the asymmetric code-disc.
According to the rotation angle of the step S20 asymmetric code-disc obtained, and according to each pumped in infusion pump piece with it is not rightClaim the correspondence of code-disc rotation angle, i.e., whether asymmetric code-disc different rotation angle respective pump piece presses in the period of each wrigglingNearly woven hose, for example have 12 pump pieces in the present embodiment in infusion pump, it is compacted when asymmetric code-disc rotates to 360 °/12=30 °First pump piece compresses woven hose in dynamic component, and so on, it is generated in infusion process due to wriggling component to acquisitionControl sequential.
It can be defeated every time to obtain with data such as the time of preset each infusion needs or amount of infusion in specific implementationThe state of liquid, when the state of infusion approaches end or changes liquid, display reminding information, such as by lighting indicator light prompt.It can not certainly prompt, at the end of infusion, directly stop wriggling.
Infusion pump of the present invention includes：Wriggling component, a detection circuit and asymmetric code-disc, the wriggling component is for drivingInfusion liquid in pipe movement in wriggling component side is set；The asymmetry code-disc is connected to the wriggling component oneEnd, and rotated with the wriggling component synchronization；The detection circuit is used to detect the rotation status of the asymmetric code-disc, to obtainObtain the control sequential of the infusion pump.By the above-mentioned means, using asymmetric code-disc in infusion pump of the present invention, to pass through detectionWhen circuit detects asymmetric code-disc rotation, the data of level change are detected, according to the rule of level change data, so that it may withJudge that the direction of rotation of code-disc, detection circuit only need to include a sensor, code-disc radius can also suitably reduce, and then subtractFew infusion pump the space occupied.
It is the flow diagram of the detection method second embodiment of infusion pump control sequential of the present invention with reference to Fig. 5, Fig. 5.
Based on the detection method first embodiment of infusion pump control sequential of the present invention, further include after step S20：
Step S40, when detecting that the rotation angle of the asymmetric code-disc is equal to predetermined angle, control driving motor addsSpeed operation preset time.
Since wriggling component is when squeezing woven hose, infusion pulsation is will produce, in the specific time, wriggling assembly operating arrivesWhen some pump piece squeezes woven hose, the case where no liquid squeezes even liquid suck-back is will produce, such as reciprocal on direction being infusedFirst pump piece compresses woven hose, i.e., when will enter next wriggling period, since the pump piece of foremost is in the open state, i.e., mostThe pump piece of front does not compress woven hose, and flow rate of liquid is 0 in woven hose at this time, if the last one pump piece is opened, does not pressTight woven hose may will produce suck-back when the last one pump piece unclamps.
Previously according to the rotation angle of the position and the asymmetric code-disc of the pump piece that suck-back may occur, setting one is defaultAngle, when obtaining the asymmetric code-disc rotation angle, whether asymmetric code-disc described in real-time judge rotates to pre- master control boradIf angle, if the asymmetry code-disc rotates to predetermined angle, to avoid there may be suck-backs from being injured caused by human body,The master control borad controls the driving motor and accelerates rotation preset time so that the infusion pump rapidly enters next wriggling weekPhase generates suck-back and needs the regular hour, at this time Accelerating running because when sending suck-back, then can be fast by liquid in woven hoseSpeed is squeezed into, and to transition, there may be the stages of suck-back.
Further, after Accelerating running tides over the stage there may be suck-back, the driving motor is controlled again to accelerateSpeed operation before.
With reference to Fig. 6, Fig. 6 is in the embodiment of the present invention when detecting that the rotation angle of the asymmetric code-disc is equal to preset angleWhen spending, a kind of flow diagram of driving motor Accelerating running preset time is controlled.
Based on the detection method second embodiment of infusion pump control sequential of the present invention, step S40 includes：
Step S41 controls the driving motor and adds when detecting that the rotation angle of asymmetric code-disc is equal to predetermined angleThe preset time of speed operation, and obtain the step number of driving motor operation and the asymmetric code-disc in the preset timeRotation angle；
Step S42 compares the rotation of the step number of the driving motor operation and the asymmetric code-disc in the preset timeGyration；
Step S43 judges that the operation of the control to the driving motor Accelerating running is broken down.
To be precisely controlled the infusion pump, it is ensured that tide over the stage there may be suck-back, in the preset time of acceleration, obtainThe rotation angle of the step number and the asymmetric code-disc of the driving motor operation is obtained, acquisition process is identical with above-described embodiment,Number repeats no more, and obtains the rotation angle of the step number of the driving motor operation and the asymmetric code-disc in the preset timeAfter degree, the rotation angle of the step number of driving motor operation in the preset time and the asymmetric code-disc is carried out pairThan, in normal operation, the rotation angle of the driving motor operation step number and the asymmetric code-disc has correspondence, thanSuch as 3 circle of driving motor operation, then asymmetric 1 circle of code-disc operation, according to pre-set correspondence, described in judgementWhether the step number of the driving motor operation and the rotation angle of the asymmetric code-disc match in preset time, if described pre-It sets the step number of the driving motor operation and the rotation angle of the asymmetric code-disc in the time to mismatch, then judgement is to the driveThe control operation operation that dynamic motor accelerates is abnormal, that is, breaks down.
Further, when judgement breaks down to the control operation that the driving motor accelerates, the driving motor is controlledIt stops operating.
To ensure safety, when judgement breaks down to the control operation that the driving motor accelerates, prompt alarm information,For example send out alarm sound or light alarm indicator, and control the driving motor and stop operating.
It is to be calculated to obtain asymmetric code according to the level signal and the time in the embodiment of the present invention with reference to Fig. 7, Fig. 7A kind of flow diagram of the rotation angle of disk.
Based on the detection method first embodiment of infusion pump control sequential of the present invention, step S20 includes：
Step S21 is compared according to the level signal with preset signals, and the rotation side of the asymmetric code-disc is obtainedTo；
When asymmetric code-disc rotates, the level signal detected by detection circuit, each period will present ruleLevel signal is obtaining institute to prevent from causing motor drive direction to control mistake due to electronic component aging or software fault etc.When stating level signal, compared with preset signals according to the level signal, if the changing rule of the level signal withThe changing rule of preset signals is identical, then judges that the asymmetric code-disc direction of rotation is correct preset direction, otherwise, it is determined thatThe asymmetry code-disc direction of rotation is differed with preset direction.
Generation is corresponded to according to the level signal of the asymmetric code-disc of acquisition and the level signal in specific implementationTime calculates the rotary speed for obtaining the asymmetric code-disc, and obtains the corresponding step number of driving motor, and according to the timeThe rotary speed for obtaining the driving motor is calculated, according to the rotation of the rotary speed and the driving motor of the asymmetric code-discThe correspondence of rotary speed, than 3 circle of driving motor as described above operation, the asymmetry code-disc operation 1 is enclosed, then the asymmetric code-discRotary speed and the driving motor rotary speed correspondence be 1:3, by the rotary speed of the asymmetric code-discIt is compared with the rotary speed of the driving motor, judges the rotary speed of the asymmetric code-disc and the driving motorWhether rotary speed matches, if the rotary speed of the asymmetry code-disc and the rotary speed of the driving motor mismatch,Then judge that the infusion pump breaks down, otherwise judges the infusion pump normal operation.Can certainly by described in acquisition notThe rotary speed of symmetrical code-disc is directly compared with corresponding default rotary speed, for example the infusion gear number of root user selection obtainsCorresponding default rotary speed is obtained, the rotary speed of the asymmetric code-disc of acquisition and corresponding default rotary speed are carried outComparison.
Step S22 judges that the infusion pump occurs when the direction of rotation of the asymmetric code-disc is with preset direction differenceFailure.
According to step S21 obtain as a result, when judging that the asymmetric code-disc direction of rotation is differed with preset direction,Judge that the infusion pump breaks down.
Further, it when judging that the infusion pump breaks down, controls the driving motor and stops operating.
To ensure safety, when judging that the infusion pump breaks down, prompt alarm information, for example, send out alarm sound orPerson lights alarm indicator, and controls the driving motor and stop operating.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hairEquivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skillsArt field, is included within the scope of the present invention.