CN116058794A - Pulse reproduction device based on feedback adjustment and reproduction method thereof - Google Patents
Pulse reproduction device based on feedback adjustment and reproduction method thereof Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 27
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- 230000015572 biosynthetic process Effects 0.000 claims abstract description 36
- 239000010705 motor oil Substances 0.000 claims abstract description 35
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 35
- 210000002321 radial artery Anatomy 0.000 claims abstract description 25
- 239000011664 nicotinic acid Substances 0.000 claims abstract description 18
- 230000004087 circulation Effects 0.000 claims abstract description 14
- 230000009123 feedback regulation Effects 0.000 claims abstract description 8
- 229920002545 silicone oil Polymers 0.000 claims description 12
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- 229920000126 latex Polymers 0.000 claims description 5
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- 238000004891 communication Methods 0.000 claims description 3
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- 238000010992 reflux Methods 0.000 description 14
- 238000003745 diagnosis Methods 0.000 description 12
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- 238000004171 remote diagnosis Methods 0.000 description 2
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- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
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Abstract
The invention relates to the field of intelligent medical auxiliary equipment, in particular to a pulse reproduction device and a pulse reproduction method based on feedback regulation, wherein the pulse reproduction device comprises a circulation unit, an execution module, a bionic hand, a pulse detector and a controller, the circulation unit comprises a liquid storage tank, an electric engine oil pump, a distributor and a pulse synthesizer which are connected in sequence in a pipeline way, and the pulse synthesizer is connected with the liquid storage tank through a pulse synthesis pipeline; the execution module comprises three electromagnetic valves which are alternately opened and closed to form pulse waves on the pulse synthesis pipeline; the pulse synthesis pipeline passes through the radial artery of the bionic hand; the pulse detector is used for detecting pulse waveforms on the pulse synthesis pipeline to form pulse signals, and the controller is used for continuously correcting control parameters of the electromagnetic valve and the motor oil pump according to the pulse signals of the pulse detector.
Description
Technical Field
The invention relates to the field of intelligent medical auxiliary equipment, in particular to a pulse reproduction device based on feedback regulation and a reproduction method thereof.
Background
Pulse diagnosis is one of the diagnostic means of diagnosis by syndrome differentiation in TCM, and plays an extremely important role in the means and methods for understanding the nature of diseases in TCM. The pulse condition contains very abundant physiological and health information in the human body, and the traditional Chinese medicine theory considers that the pulse represents qi and blood deficiency, channel deficiency and excess and viscera full and weak in the human body and contains abundant pathological information. Pulse condition has the important guiding function in the dialectical treatment of traditional Chinese medicine and the important meaning traditional Chinese medicine pulse diagnosis needs doctors and patients to acquire pulse condition information face to face, but the medical resource is unevenly distributed due to the wide regions and the unbalanced economic development level of China, so that advanced medical equipment and experienced Chinese doctors are mainly concentrated in the economically developed regions, the medical distribution is seriously uneven in vast rural areas and marginal regions, the medical level is lower, and the difficult problem of difficulty in medical treatment of people in the middle and small urban common regions is caused by low utilization rate of limited medical resources. On the other hand, pulse diagnosis is dependent on the personal impression of the middle doctor and his own experience, which is inconvenient for expression and communication and restricts the inheritance and development of traditional Chinese medicine. Telemedicine combined with the internet of things becomes a key link for solving the problems. The internet of things technology is widely applied, and remote diagnosis and treatment is one of the core applications of the technology in the medical field. The Internet of things technology and remote medical treatment are combined, a remote traditional Chinese medicine diagnosis and treatment system based on the Internet of things technology is developed, modernization and intellectualization of traditional Chinese medicine diagnosis and treatment are achieved, the diagnosis and treatment requirements of people are met, full recording and re-simulation of the traditional Chinese medicine pulse diagnosis and treatment process can be achieved, and the method has great significance on inheritance and development of traditional Chinese medicine and is an urgent requirement for modernization of traditional Chinese medicine.
The traditional Chinese medicine diagnosis mode has great limitation, for example, patients and doctors must face to diagnose, and with the rapid development of science and technology, the traditional Chinese medicine diagnosis can be realized remotely through a video technology, so that the limitation of the traditional Chinese medicine diagnosis mode is broken.
However, in the existing remote diagnosis, the remote pulse diagnosis is still a technical problem, because the existing pulse condition instrument generally collects pulse data through a resistor-type sensor array and a capacitor-type sensor array, and performs pulse reproduction according to the pulse data, pulse information is changed into pulse waves for research, the pulse waves mainly have three characteristic parts of main waves, tide waves and counterpulsation waves, the three characteristic parts can be subdivided into characteristic points such as main wave peaks, tide wave peaks, counterpulsation wave peaks and counterpulsation wave troughs, the existing pulse reproduction device generally only forms single pulse, the pulse waves cannot be completely reproduced, and the reproduction accuracy is poor.
Disclosure of Invention
Therefore, a pulse reproduction device and a reproduction method thereof based on feedback adjustment are needed to solve the problem of poor reproduction accuracy of the existing pulse reproduction device.
To achieve the above object, the present invention provides a pulse reproduction apparatus based on feedback adjustment, comprising:
the circulating unit comprises a liquid storage tank, a motor oil pump, a distributor and a pulse synthesizer which are sequentially connected through pipelines, wherein circulating liquid is stored in the liquid storage tank, the distributor comprises a liquid inlet and three liquid outlets, the liquid inlet is communicated with the motor oil pump through a pipeline, the three liquid outlets are communicated with the pulse synthesizer, and the pulse synthesizer is connected with the liquid storage tank through a pulse synthesis pipeline;
the execution module comprises three electromagnetic valves, wherein the three electromagnetic valves are respectively arranged on the three liquid outlets and the pipeline communicated with the pulse synthesizer, and the three electromagnetic valves are alternately opened and closed to form pulse waves on the pulse synthesis pipeline;
a bionic hand, wherein the pulse synthesis pipeline passes through a radial artery of the bionic hand;
the pulse detector is arranged at the radial artery of the simulated hand and is used for detecting pulse waveforms on the pulse synthesis pipeline to form pulse signals;
the controller is electrically connected with the pulse detector, the three electromagnetic valves and the motor oil pump, and is used for continuously correcting control parameters of the electromagnetic valves and the motor oil pump according to pulse signals of the pulse detector.
Further, the pulse synthesizer comprises a synthesis cavity, and the liquid outlet and the pulse synthesis pipeline are both communicated with the synthesis cavity.
When the electromagnetic valve is instantaneously opened, the output circulating liquid forms shock waves, the shock waves are converged into the synthesizer, the pulse synthesizer can integrate the impulse of the silicone oil, and the impulse is transmitted to the pulse synthesis pipeline after being overlapped and synthesized, so that the repeated pulse beat can be obtained at the bionic hand. The synthesizer is internally provided with a synthesizing cavity which can play a role of filtering, so that the output pulse image is smoother.
Further, the pulse synthesis pipeline comprises a first connecting pipe, a simulated radial artery pipeline and a second connecting pipe which are sequentially connected, the first connecting pipe is connected with a pulse synthesizer, the second connecting pipe is connected with a liquid storage tank, the simulated radial artery pipeline is located at the radial artery of the simulated hand, the simulated radial artery pipeline is a latex pipe, and the first connecting pipe and the second connecting pipe are TPU pipes. The TPU pipe has smaller damping elasticity, and can reduce the weakening of pulses during pipeline transportation. The latex tube has better elasticity, and when the synthesized pulse wave is conveyed to the simulated radial artery pipeline, the surface of the simulated radial artery pipeline can form obvious pulsation, so that the pulse wave can be conveniently detected.
Further, the pipeline in the circulation unit is made of TPU material, the circulation liquid in the circulation unit is silicone oil, and the joints at two ends of the TPU pipeline are in sealing connection with the silicone oil-proof adhesive tape through the fixing nuts. The TPU pipe has smaller damping elasticity, and can reduce the weakening of pulses during pipeline transportation.
Further, the distributor is also provided with a reflux port, and the reflux port is communicated with the liquid storage tank through a reflux pipeline. After the circulating liquid is pumped into the distributor through the return port, part of the circulating liquid flows back into the liquid storage tank, so that the pressure and the flow of the circulating liquid output by the liquid outlet can be regulated, and the stable use of the device is ensured.
Further, a reflux valve is arranged on a pipeline communicated with the reflux port and the liquid storage tank, and the reflux valve is used for adjusting reflux flow between the reflux port and the liquid storage tank. The regulating reflux valve is used for simulating and regulating the peripheral resistance of the blood vessel of the human body, and the size of the regulating reflux valve can determine the descending rate of the descending branch of the pulse wave, so that the simulation accuracy is improved.
The reproduction method of the pulse reproduction device based on feedback regulation comprises the following steps:
(1) Pulse data to be reproduced is input into the controller,
(2) The controller controls the motor oil pump to be started, then three electromagnetic valves are sequentially opened to form pulse waves on the pulse synthesis pipeline,
(3) The pulse wave signal is detected by the pulse detector and transmitted to the controller,
(4) The controller compares the obtained pulse signals with pulse data to be reproduced, corrects control parameters of the electromagnetic valve and the motor oil pump, and circulates the steps (2) - (4);
(5) Accurate pulses are reproduced.
The technical scheme has the following beneficial effects:
according to the invention, a circulating liquid pipe unit is designed to simulate a blood circulation system, a motor oil pump is designed to simulate a heart, circulating liquid in a liquid storage tank is pumped and circulated through each part of the circulating unit, an electromagnetic valve is opened and closed at a radial artery of a bionic hand to form pulses, three battery valves are alternately opened and closed on a pipeline to form three pulses, a pulse wave is synthesized through a pulse synthesizer, the pulse wave has triple wave peaks, the main wave of the pulse wave is effectively simulated, the tide wave and the counterpulsation wave are further effectively simulated, and a controller can continuously feed back and regulate the electromagnetic valve according to the detected pulse signal and pulse data to be reproduced so as to finally ensure accurate reproduction pulse.
Drawings
FIG. 1 is a diagram showing a system connection structure of a pulse reproduction apparatus according to an embodiment;
fig. 2 is a flowchart of a reproduction method of the pulse reproduction apparatus according to the embodiment.
Fig. 3 is a flowchart of pulse wave formation in step (2) of the reproduction method according to the embodiment.
Fig. 4 is a pulse data diagram to be reproduced according to an embodiment.
Fig. 5 is a data chart of the appearance time of the main wave peak of the pulse wave according to the opening time of the different electromagnetic valves I in the specific embodiment.
FIG. 6 shows an embodiment of the method for adjusting the opening time T of the solenoid valve I f And a data diagram of the appearance time of the characteristic points of the main wave crest.
FIG. 7 is a graph showing the data of the time control tide peak occurrence time for various first closing times of all solenoid valves according to the embodiment.
FIG. 8 shows the adjustment of the time T for closing all solenoid valves 2 nd time according to the embodiment AE And then adjusting the data graphs of the occurrence time of all the characteristic points.
Fig. 9 is a graph of pulse data and initial pulse data for a specific reproduction of the embodiment.
Reference numerals illustrate:
1. a circulation unit; 11. a liquid storage tank; 12. an electric motor oil pump; 13. a dispenser; 131. a return line; 132. a return valve; 14. a pulse synthesizer; 15. a pulse synthesis pipeline; 151. a first connection pipe; 152. simulating a radial artery duct; 153. a second connection pipe;
2. an execution module; 21. an electromagnetic valve;
3. a bionic hand;
4. a pulse detector;
5. a controller;
Detailed Description
In order to describe the technical content, constructional features, achieved objects and effects of the technical solution in detail, the following description is made in connection with the specific embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, the present embodiment discloses a pulse reproduction apparatus based on feedback adjustment, which includes a circulation unit 1, an execution module 2, a bionic hand 3, a pulse detector 4 and a controller 5:
the circulation unit 1 comprises a liquid storage tank 11, a motor oil pump 12, a distributor 13 and a pulse synthesizer 14 which are sequentially connected through pipelines, wherein circulating liquid is stored in the liquid storage tank 11, the distributor 13 comprises a liquid inlet and three liquid outlets, the liquid inlet is communicated with the motor oil pump 12 through a pipeline, the three liquid outlets are communicated with the pulse synthesizer 14, and the pulse synthesizer 14 is connected with the liquid storage tank 11 through a pulse synthesis pipeline 15;
the pipeline in the circulation unit 1 is made of TPU material, the circulation liquid in the circulation unit 1 is silicone oil, and the joints at two ends of the TPU pipeline are in sealing connection with the silicone oil-proof adhesive tape through the fixing nuts. The TPU pipe has smaller damping elasticity, and can reduce the weakening of pulses during pipeline transportation.
In this example, the TPU tube was simulated using a gauge with an inner diameter of 4mm and an outer diameter of 6 mm.
The distributor 13 is also provided with a reflux port which is communicated with the liquid storage tank 11 through a reflux pipeline 131
The distributor 13 is internally provided with a cavity, and pumped silicone oil is distributed into four paths after entering the cavity of the distributor 13, one path of silicone oil flows back along the backflow port, and the other path of silicone oil enters the pulse synthesizer 14 along three liquid outlets.
After the circulating liquid is pumped into the distributor 13 through the return port, part of the circulating liquid flows back into the liquid storage tank 11, so that the pressure and the flow of the circulating liquid output by the liquid outlet can be regulated, and the stable use of the device is ensured.
And a return valve 132 is arranged on a pipeline communicated with the return port and the liquid storage tank 11, and the return valve 132 is used for adjusting the flow of the return flow between the return port and the liquid storage tank 11. The adjusting reflux valve 132 is used for simulating and adjusting the peripheral resistance of the blood vessel of the human body, and the size of the adjusting reflux valve 132 can determine the descending rate of the descending branch of the pulse wave, so that the simulation accuracy is improved.
The flow rate of the return valve 132 may be adjusted before the simulation is repeated, or may be adjusted after the three solenoid valves 21 are opened and closed.
The pulse synthesizer 14 comprises a synthesis cavity, and the liquid outlet and the pulse synthesis pipeline 15 are communicated with the synthesis cavity. When the electromagnetic valve 21 is opened instantaneously, the output circulating liquid forms a shock wave, the shock wave is converged into the synthesizer, the pulse synthesizer 14 can integrate the impulse of the silicone oil, and after the impulse is overlapped and synthesized, the impulse is transmitted to the pulse synthesis pipeline 15, so that the repeated pulse beat can be obtained at the bionic hand 3. The synthesizer is internally provided with a synthesizing cavity which can play a role of filtering, so that the output pulse image is smoother.
The size of the filtering effect of the synthetic cavity is related to the size and shape of the synthetic cavity, the shape of the synthetic cavity can comprise cubes, cuboid, cylinder, sphere or ellipsoid with various shapes, and the size of the synthetic cavity can be the volume of the distributor 13, 2 times of the volume of the distributor 13 and 3 times of the volume of the distributor 13.
In this embodiment, the pulse synthesizer 14 and the dispenser 13 each have rectangular cavities of the same size.
The execution module 2 comprises three electromagnetic valves 21, the three electromagnetic valves 21 are respectively arranged on the three liquid outlets and the pipeline communicated with the pulse synthesizer 14, and the three electromagnetic valves 21 are alternately opened and closed to form pulse waves on the pulse synthesis pipeline 15;
the pulse synthesis pipeline 15 passes through the radial artery of the bionic hand 3; in this embodiment, the bionic hand 3 includes a bionic hand 3 iron stand and a simulated skin. The iron bracket of the bionic hand 3 is a main body supporting frame of the bionic hand 3 and is used for fixing a pulse synthesis pipeline 15 for circulating simulated blood and supporting the whole bionic hand 3; the simulated skin is used for packaging the simulated hand 3 iron bracket, provides a hand feeling close to the real human skin,
the pulse detector 4 is arranged at the radial artery of the bionic hand 3, and the pulse detector 4 is used for detecting the pulse waveform on the pulse synthesis pipeline 15 to form a pulse signal;
the controller 5 is electrically connected with the pulse detector 4, the three electromagnetic valves 21 and the motor oil pump 12, and the controller 5 is used for continuously correcting control parameters of the electromagnetic valves 21 and the motor oil pump 12 according to pulse signals of the pulse detector 4.
In this embodiment, the motor oil pump 12 is a speed reducer oil pump, and the controller 5 controls the delivery amount of the silicone oil pumped by the motor oil pump 12 through the speed reduction ratio of the speed reducer oil pump.
The pulse synthesis pipeline 15 comprises a first connecting pipe 151, a simulated radial artery pipeline 152 and a second connecting pipe 153 which are sequentially connected, the first connecting pipe 151 is connected with the pulse synthesizer 14, the second connecting pipe 153 is connected with the liquid storage tank 11, the simulated radial artery pipeline 152 is positioned at the radial artery of the simulated hand 3, the simulated radial artery pipeline 152 is a latex tube, and the first connecting pipe 151 and the second connecting pipe 153 are TPU tubes.
The TPU pipe has smaller damping elasticity, and can reduce the weakening of pulses during pipeline transportation. The latex tube has better elasticity, and when the synthesized pulse wave is conveyed to the simulated radial artery pipeline 152, the surface of the simulated radial artery pipeline 152 can form obvious pulsation, so that the pulse wave can be conveniently detected.
As shown in fig. 2, the reproduction method of the pulse reproduction apparatus based on feedback adjustment includes the following steps:
(1) Pulse data to be reproduced is input into the controller,
(2) The controller controls the motor oil pump to be started, the motor oil pump pumps the silicone oil in the liquid storage tank to the distributor, a certain pressure is formed in the distributor, part of the silicone oil flows back to the liquid storage tank through a backflow port of the distributor, then three electromagnetic valves are sequentially opened to form pulse waves on the pulse synthesis pipeline,
as shown in fig. 3, the specific process of step (2) is as follows:
the three electromagnetic valves of the execution module are respectively an electromagnetic valve I, an electromagnetic valve II and an electromagnetic valve III, and the specific process of the step (2) is as follows:
(2-1) setting the parameter V in the controller f 、T f 、V s 、T AC 、T s 、V C 、T AE 、T C And T, solenoid valve I, solenoid valve II and solenoid valve III are all in a closed state;
the (2-2) controller controls the motor oil pump to be started, and the pumping capacity of the motor oil is V f The motor oil pump pumps the silicone oil in the liquid storage tank to the distributor,
(2-3) the controller controls the electromagnetic valve I to be opened, T (T) f Starting timing, forming a first pulse wave on the pulse synthesizer,
(2-4)T f timing is completed, solenoid valves I, T are closed AC Starting timing and controlling the conveying quantity of the motor oil pump to be V s ，
(2-5)T AC The timing is finished, the controller controls the solenoid valve II to be opened, T s Starting timing, forming a second pulse wave on the pulse synthesizer,
(2-6)T s timing is completed, solenoid valves II, T are closed AE Starting timing and controlling the conveying quantity of the motor oil pump to be V C ，
(2-7)T AE The timing is finished, the controller controls the solenoid valve III to be opened, T C Starting timing, forming a third pulse wave on the pulse synthesizer,
(2-8)T c the timing is finished, the electromagnetic valve III is closed, the T starts timing,
(2-9) T is completed at fixed time, is completed,
(3) The pulse wave signal is detected by the pulse detector and transmitted to the controller,
(4) The controller compares the obtained pulse signals with pulse data to be reproduced, corrects the control parameters of the electromagnetic valve and the motor oil pump,
(5) Accurate pulses are reproduced.
Setting parameter V in controller f 、T f 、V s 、T AC 、T s 、V C 、T AE 、T C And T, and the pulse wave dominant wave are characterized as follows:
TABLE 1 characterization of pulse waves affected by device parameters
In the step (4), the contrast correction process of the parameters is T f For example, the following are possible: when the appearance time of the main wave peak of the pulse wave signal detected by the pulse detector is smaller than that of the pulse data to be reproduced, the controller controls the increase T f Parameters and vice versa.
Parameter T f 、T AC 、T s 、T AE 、T C The values of the increase and decrease of T may be 5ms, 10ms, 20ms, or 30ms.
The correction process of the remaining parameters can be referred to T f And (5) correcting.
Taking pulse data to be reproduced as fig. 4 as an exampleOpening time T of different solenoid valves I f The effects are as follows:
TABLE 1 different opening times T of solenoid valve 1 f Parameter table for reproducing pulse wave corresponding characteristic point
| Waveform/time of occurrence | Main wave crest | Wave crest of tide wave | Wave crest of dicrotic wave |
| Solenoid valve I is opened for 10ms | 0.030s | 0.110s | 0.250s |
| Solenoid valve I is opened for 15ms | 0.070s | 0.130s | 0.250s |
| Solenoid valve I is opened for 20ms | 0.095s | Without any means for | 0.250s |
| Solenoid valve I is opened for 25ms | 0.120s | 0.155s | 0.260s |
The main wave peak appearance time chart of the specific pulse wave is shown in fig. 5.
By adjusting the opening time T of the electromagnetic valve I f The appearance time of the characteristic points of the main wave crest of the reproduction can be enabled to accord with the pulse data to be reproduced. As shown in fig. 6.
Interval time T between different solenoid valves I and II AC That is, the duration of the first closing of all solenoid valves has the following effect:
TABLE 2 first closing all solenoid valves for different times T AC Parameter table for reproducing corresponding characteristic points of pulse wave
The first closing of all solenoid valves controls the time of occurrence of the wave peak as shown in fig. 7.
Adjust the time T for closing all the solenoid valves for the 2 nd time AE All feature point occurrence times can then be made to coincide with the pulse data to be reproduced, as in fig. 8.
Finally, to reproduce the pulse data of fig. 1, the control parameters of the controller are as follows:
| parameters (parameters) | Parameter value |
| V f | 90% motor speed (full speed 1350 r/min) |
| T f | 35ms |
| V s | 85% motor speed (full speed 1350 r/min) |
| T AC | 80ms |
| T s | 30ms |
| V C | 60% motor speed (full speed 1350 r/min) |
| T AE | 190ms |
| T C | 25ms |
| T | 460ms |
A specific pair of reproduced pulse data and initial pulse data is shown in fig. 9.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the statement "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article or terminal device comprising the element. Further, herein, "greater than," "less than," "exceeding," and the like are understood to not include the present number; "above", "below", "within" and the like are understood to include this number.
While the embodiments have been described above, other variations and modifications will occur to those skilled in the art once the basic inventive concepts are known, and it is therefore intended that the foregoing description and drawings illustrate only embodiments of the invention and not limit the scope of the invention, and it is therefore intended that the invention not be limited to the specific embodiments described, but that the invention may be practiced with their equivalent structures or with their equivalent processes or with their use directly or indirectly in other related fields.
Claims (8)
1. A pulse reproduction apparatus based on feedback regulation, comprising:
the circulating unit comprises a liquid storage tank, a motor oil pump, a distributor and a pulse synthesizer which are sequentially connected through pipelines, wherein circulating liquid is stored in the liquid storage tank, the distributor comprises a liquid inlet and three liquid outlets, the liquid inlet is communicated with the motor oil pump through a pipeline, the three liquid outlets are communicated with the pulse synthesizer, and the pulse synthesizer is connected with the liquid storage tank through a pulse synthesis pipeline;
the execution module comprises three electromagnetic valves, wherein the three electromagnetic valves are respectively arranged on the three liquid outlets and the pipeline communicated with the pulse synthesizer, and the three electromagnetic valves are alternately opened and closed to form pulse waves on the pulse synthesis pipeline;
a bionic hand, wherein the pulse synthesis pipeline passes through a radial artery of the bionic hand;
the pulse detector is arranged at the radial artery of the simulated hand and is used for detecting pulse waveforms on the pulse synthesis pipeline to form pulse signals;
the controller is electrically connected with the pulse detector, the three electromagnetic valves and the motor oil pump, and is used for continuously correcting control parameters of the electromagnetic valves and the motor oil pump according to pulse signals of the pulse detector.
2. The feedback adjustment-based pulse reproduction apparatus of claim 1, wherein the pulse synthesizer includes a synthesis chamber, and the liquid outlet and the pulse synthesis conduit are both in communication with the synthesis chamber.
3. The pulse reproduction apparatus based on feedback regulation of claim 1, wherein the pulse synthesis pipeline comprises a first connecting pipe, a simulated radial artery pipeline and a second connecting pipe which are sequentially connected, wherein the first connecting pipe is connected with the pulse synthesizer, the second connecting pipe is connected with the liquid storage tank, the simulated radial artery pipeline is positioned at a radial artery of a simulated hand, the simulated radial artery pipeline is a latex pipe, and the first connecting pipe and the second connecting pipe are TPU pipes.
4. The pulse reproduction apparatus based on feedback regulation of claim 3, wherein the pipeline in the circulation unit is made of TPU material, the circulation liquid in the circulation unit is silicone oil, and the joints at two ends of the TPU pipeline are in sealing connection with the silicone oil-proof adhesive tape through a fixing nut.
5. The pulse reproduction apparatus based on feedback regulation of claim 1, wherein the dispenser is further provided with a return port, and the return port is in communication with the tank via a return conduit.
6. The pulse reproduction apparatus according to claim 5, wherein a return valve is provided in a pipe connecting the return port and the tank, and the return valve is used for adjusting a flow rate of the return flow between the return port and the tank.
7. The reproduction method of a pulse reproduction apparatus based on feedback regulation according to any one of claims 1 to 6, comprising the steps of:
(1) Inputting pulse data to be reproduced into the controller;
(2) The controller controls the motor oil pump to be started, and then three electromagnetic valves are sequentially opened to form pulse waves on the pulse synthesis pipeline;
(3) The pulse wave signal is detected by the pulse detector and transmitted to the controller;
(4) The controller compares the obtained pulse signals with pulse data to be reproduced, corrects control parameters of the electromagnetic valve and the motor oil pump, and circulates the steps (2) - (4);
(5) Accurate pulse wave is reproduced.
8. The pulse reproduction apparatus reproduction method based on feedback adjustment according to claim 7, wherein the three solenoid valves of the execution module are solenoid valve I, solenoid valve II and solenoid valve III, respectively, and the specific process of step (2) is as follows:
(2-1) setting the parameter V in the controller f 、T f 、V s 、T AC 、T s 、V C 、T AE 、T C And T, solenoid valve I, solenoid valve II and solenoid valve III are all in a closed state;
the (2-2) controller controls the motor oil pump to be started, and the pumping capacity of the motor oil is V f The motor oil pump pumps the conveying liquid in the liquid storage tank to the distributor;
(2-3) the controller controls the electromagnetic valve I to be opened, T f Starting timing, and forming a first pulse wave on a pulse synthesizer;
(2-4)T f timing is completed, solenoid valves I, T are closed AC Starting timing and controlling the conveying quantity of the motor oil pump to be V s ；
(2-5)T AC The timing is finished, the controller controls the solenoid valve II to be opened,T s starting timing, and forming a second pulse wave on the pulse synthesizer;
(2-6)T s timing is completed, solenoid valves II, T are closed AE Starting timing and controlling the conveying quantity of the motor oil pump to be V C ；
(2-7)T AE The timing is finished, the controller controls the solenoid valve III to be opened, T C Starting timing, and forming a third pulse wave on the pulse synthesizer;
(2-8)T c the timing is finished, the electromagnetic valve III is closed, and the T starts timing;
(2-9) T is completed at fixed time.
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| US20210161481A1 (en) * | 2017-05-08 | 2021-06-03 | Boe Technology Group Co., Ltd. | Pulse simulator, pulse sensor, haptic medical device having pulse simulator, and method for haptic pulse detection |
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| KR20090030121A (en) * | 2007-09-19 | 2009-03-24 | 한국전기연구원 | Dummy pulse wave simulator |
| CN104157199A (en) * | 2013-05-13 | 2014-11-19 | 上海中医药大学 | Using method of pulse signal analogue simulation generator |
| CN107016915A (en) * | 2017-04-07 | 2017-08-04 | 天津市天中依脉科技开发有限公司 | A kind of Novel wrist as putting instrument again |
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