Pulsating pump system, medical instrument implantation intervention simulation system and control method

Abstract

The invention discloses a pulsating pump system, a medical device implantation intervention simulation system and a control method, and relates to the technical field of medical device tests.The pulsating pump system comprises a ventricular simulation cavity, a ventricular intervention simulation cavity, a ventricular intervention simulation cavity, a ventricular intervention simulation cavity, a ventricular intervention simulation cavity and a ventricular intervention simulation cavity, a liquid inlet and a liquid outlet of the ventricular simulation cavity are respectively connected with a liquid inlet pipe and a liquid outlet pipe through one-way valves; the driving assembly is relatively and fixedly connected with the ventricular simulation cavity and is used for driving the diaphragm to do regular reciprocating motion; the flow sensor is connected to the liquid outlet pipe in series and used for detecting the flow velocity of the liquid medium of the circulating system; the pressure sensor is connected to the liquid outlet pipe in series and used for detecting the pressure of liquid at the designated position of the circulating system; according to the pulsating pump system, the medical instrument implantation intervention simulation system and the control method, the physiological waveform in the blood vessel of the human body can be accurately reproduced through closed-loop control.

Description

Technical Field

[0001] The present invention relates to the technical field of medical device testing, and more specifically, to a pulsating pump system, a medical device implantation simulation system, and a control method. Background Art

[0002] For high-risk vascular stent implants such as coronary stents, strict performance testing, animal experiments, and in-human clinical implantation studies are required before the products are launched on the market. Among them, the design of the delivery system for delivering the vascular stent to the specified lesion site is particularly important. In particular, its adaptability to the vascular channel, ease of use during the delivery process, etc. have always been the key points of research and development.

[0003] Currently, for the in-vitro simulated use of implants, in the early stage, the stent was released into a matching straight silicone tube to observe the morphology of the stent after dilation. With the improvement of relevant regulatory systems, biomimetic silicone simulated blood vessels began to appear, which can better evaluate the delivery performance, bending performance, retraction performance, and stent release accuracy performance of the vascular stent delivery system.

[0004] However, in the current testing process, either a static environment is selected, or a simple DC pump or an eccentric wheel-piston drive mechanism is used to drive the solution flow inside the simulated blood vessel, which cannot simulate the real human vascular environment or is difficult to reproduce complex physiological waveforms (such as aortic pulsation, abnormal pulsation of diseased blood vessels), resulting in doubts about the accuracy of the simulated use results.

[0005] In summary, how to solve the problem that the existing simulation system cannot simulate the real human vascular environment and is difficult to reproduce complex physiological waveforms is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0006] In view of this, an object of the present invention is to provide a pulsating pump system, which drives the diaphragm in the ventricular simulation cavity to reciprocate through a driving component to simulate the pulsatile blood supply of the ventricle, and detects the physiological waveform of the output liquid of the ventricular simulation cavity through a flow sensor and a pressure sensor. The detection result can be used to correct the control of the driving component to accurately reproduce the physiological waveform in the human blood vessel, and by changing the control parameters of the control component, complex physiological waveforms can be simulated.

[0007] Another object of the present invention is to provide a medical device implantation simulation system including the above pulsating pump system, which has the same technical features and can solve the same technical problems.

[0008] Another object of the present invention is to provide a control method applied to the above-mentioned pulsating pump system, which realizes closed-loop control of the driving component by detecting the physiological waveform of the liquid output from the ventricular simulation cavity and correcting the control parameters of the driving component according to the detection results, so as to accurately reproduce the physiological waveform in the human blood vessels.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] A pulsating pump system for medical device implantation simulation, comprising:

[0011] A ventricular simulation cavity is provided with a diaphragm inside, which is used to change the pressure in the ventricular simulation cavity through the action of the diaphragm, and the liquid inlet and liquid outlet of the ventricular simulation cavity are respectively connected to the liquid inlet pipe and the liquid outlet pipe through a one-way valve, and the liquid inlet pipe and the liquid outlet pipe are used to be connected in series with a circulatory system;

[0012] A driving assembly, which is relatively fixedly connected to the ventricular simulation chamber and is used to drive the diaphragm to perform regular reciprocating motion;

[0013] A flow sensor, connected in series to the liquid outlet pipe, for detecting the flow rate of the liquid medium in the circulation system;

[0014] The pressure sensor is connected in series to the liquid outlet pipe and is used to detect the pressure of the liquid at a specified position of the circulation system.

[0015] Preferably, a heating component and a temperature sensor are provided in the ventricular simulation cavity for regulating the temperature of the liquid medium in the ventricular simulation cavity.

[0016] Preferably, a first compliance cavity is provided in communication with the liquid outlet of the ventricular simulation cavity to eliminate turbulence in the liquid outlet tube.

[0017] Preferably, the liquid inlet of the ventricle simulation cavity is connected to the atrial simulation cavity, the atrial simulation cavity is a columnar structure with an open top, and the bottom of the columnar structure is connected to the liquid inlet tube. In actual use, the height of the water column in the atrial simulation cavity can be adjusted to achieve a simulated atrial low pressure environment.

[0018] Preferably, the liquid inlet tube upstream of the atrial simulation cavity is serially connected with a vascular damping simulation component and a second compliance cavity in sequence, the vascular damping simulation component is used to simulate the flow damping of the liquid medium in the blood vessel, and the second compliance cavity is used to simulate the contraction / dilation of the blood vessel.

[0019] Preferably, the drive assembly comprises a linear motor and a piston;

[0020] The linear motor is relatively fixedly connected to the ventricular simulation chamber and is used to drive the piston to perform reciprocating motion;

[0021] The piston is fixedly connected to the diaphragm relatively.

[0022] Preferably, the driving assembly further includes a displacement sensor for detecting the displacement of the piston.

[0023] In actual use, by detecting the displacement of the piston, the output of each beat of the motor can be deduced, thereby improving the control accuracy of the simulation.

[0024] A medical device implantation simulation system includes a bionic blood vessel system and the pulsating pump system described in any one of the above, the liquid inlet pipe is communicated with the liquid outlet of the bionic blood vessel system, and the liquid outlet pipe is communicated with the liquid inlet of the bionic blood vessel system.

[0025] A control method is applied to the pulsating pump system described in any one of the above, including the steps:

[0026] The control host computer receives a selection instruction for simulating a physiological waveform, and according to the selection instruction, controls the driving assembly to drive the diaphragm to act with an output model of corresponding parameters;

[0027] Control the flow sensor and the pressure sensor to detect the flow velocity and pressure of the liquid medium in the circulation system to obtain an actual output waveform;

[0028] Judge whether the actual output waveform is consistent with the physiological waveform to be simulated;

[0029] If so, keep the parameters of the current output model;

[0030] If not, correct the parameters of the current output model and return to the step of obtaining the actual output waveform.

[0031] Preferably, the parameters of the output model include at least one of the input power, maximum stroke, reciprocating frequency, motion acceleration, and current frequency of the driving assembly.

[0032] The pulsating pump system provided by the present invention, compared with the prior art, has at least the following beneficial effects:

[0033] 1. By arranging a diaphragm in the ventricular simulation cavity and using a driving assembly to drive the diaphragm to reciprocate, thereby simulating the pulsatile blood pumping of the ventricle. By changing the reciprocating frequency and stroke length of the diaphragm, different physiological waveforms of different ventricular blood supplies can be simulated, that is, by changing the control parameters of the driving assembly, different and complex physiological waveform simulations can be achieved;

[0034] 2. Meanwhile, a pressure sensor and a flow sensor are integrated behind the liquid outlet pipe to detect the pressure and flow rate of the liquid discharged from the ventricular simulation cavity, thereby facilitating the mapping of the physiological waveform of the liquid output from the ventricular simulation cavity, comparing it with the simulated physiological waveform, and then correcting the parameters of the driving component for driving the diaphragm movement to achieve the closed-loop control of the entire pulsating pump system, so as to ensure the accurate reproduction of the physiological waveform in the human blood vessel.

[0035] The medical device implantation simulation system provided by the present invention includes the above-mentioned pulsating pump system and has the same beneficial effects.

[0036] The control method provided by the present invention is applied to the above-mentioned pulsating pump system. Through the closed-loop control of the pulsating pump system, the consistency between the simulated physiological waveform and the actual physiological waveform is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0038] Figure 1 It is a schematic structural diagram of the pulsating pump system provided by the present invention;

[0039] Figure 2 It is a front view of the pulsating pump system provided by the present invention;

[0040] Figure 3 It is a top view of the pulsating pump system provided by the present invention;

[0041] Figure 4 is Figure 2 a cross-sectional view taken along line A-A in;

[0042] Figure 5 is Figure 2 a cross-sectional view taken along line B-B in;

[0043] Figure 6 is Figure 3 a cross-sectional view taken along line C-C in;

[0044] Figure 7 It is a schematic diagram of the bionic blood vessel system provided by the present invention;

[0045] Figure 8 It is a schematic flow chart of the control method provided by the present invention.

[0046] Figures 1-6 Wherein:

[0047] 1. Ventricular simulation cavity; 11. Diaphragm; 12. Heating component; 13. Outlet check valve; 14. Inlet check valve;

[0048] 2. Driving component; 21. Linear motor; 22. Displacement sensor; 23. Piston;

[0049] 3. First compliance cavity;

[0050] 4. Flow sensor;

[0051] 5. Second compliance cavity;

[0052] 6. Vascular damping simulation component;

[0053] 7. Atrial simulation cavity.

[0054] Figure 7 Among them:

[0055] Part I is the intracranial blood vessel; Part II is the thoracic aorta blood vessel; Part III is the lower limb blood vessel; a is the left middle cerebral artery of the brain; b is the right middle cerebral artery of the brain; c is the tibiofibular artery; d is the femoral popliteal artery; e is the outlet of the left ventricle. Specific implementation mode

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] The core of the present invention is to provide a pulsatile pump system, which drives the diaphragm in the ventricular simulation cavity to reciprocate through the driving component, simulates the pulsatile blood supply of the ventricle, and detects the physiological waveform of the output liquid of the ventricular simulation cavity through the flow sensor and the pressure sensor. The detection result can be used to correct the control of the driving component to accurately reproduce the physiological waveform in the human blood vessel.

[0058] Another core of the present invention is to provide a medical device implantation simulation system including the above pulsatile pump system, which has the same technical features and can solve the same technical problems.

[0059] Another core of the present invention is to provide a control method applied to the above pulsatile pump system. By detecting the physiological waveform of the output liquid of the ventricular simulation cavity and correcting the control parameters of the driving component according to the detection result, the closed-loop control of the driving component is realized to accurately reproduce the physiological waveform in the human blood vessel.

[0060] Please refer to Figure 1 、 Figure 2 andFigure 3 , a pulsating pump system for medical device implantation simulation, comprising:

[0061] A ventricular simulation cavity 1, internally provided with a diaphragm 11, which is used to change the pressure in the ventricular simulation cavity 1 by the movement of the diaphragm 11. The inlet and outlet of the ventricular simulation cavity 1 are respectively connected to the inlet pipe and the outlet pipe through one-way valves. A circulation system is used to be connected in series between the inlet pipe and the outlet pipe;

[0062] A driving assembly 2, which is fixedly connected to the ventricular simulation cavity 1 relatively, and is used to drive the diaphragm 11 to make regular reciprocating movements;

[0063] A flow sensor 4, connected in series to the outlet pipe, and is used to detect the flow rate of the liquid medium in the circulation system;

[0064] A pressure sensor, connected in series to the outlet pipe, and is used to detect the pressure of the liquid at a specified position in the circulation system.

[0065] As Figure 1 , Figure 2 and Figure 3 shown, an inlet one-way valve 14 and an outlet one-way valve 13 are respectively arranged at the inlet and outlet of the ventricular simulation cavity 1. When the driving assembly 2 drives the diaphragm 11 to move to expand the effective volume in the ventricular simulation cavity 1, the pressure in the ventricular simulation cavity 1 becomes smaller, and the inlet one-way valve 14 is conducted, and the liquid medium can enter the ventricular simulation cavity 1 through the inlet. When the driving assembly 2 drives the diaphragm 11 to move to reduce the effective volume of the ventricular simulation cavity 1, the pressure in the ventricular simulation cavity 1 becomes larger, and the outlet one-way valve 13 is conducted, and the liquid medium in the ventricular simulation cavity 1 is discharged through the outlet. As the driving assembly 2 drives the diaphragm 11 to make reciprocating movements, the liquid medium is discharged pulsatively at the outlet;

[0066] During this process, by changing the reciprocating frequency of the diaphragm 11, the frequency and flow rate of the pulsed liquid medium discharged from the outlet are changed. By changing the maximum stroke of the diaphragm 11, the maximum pressure of the liquid medium discharged from the outlet is changed. By changing the acceleration of the movement of the diaphragm 11, the acceleration of the flow rate of the liquid medium discharged from the outlet is changed. That is, by changing any one of the reciprocating frequency, maximum stroke and movement acceleration of the diaphragm 11, the output waveform of the liquid medium discharged from the outlet can be changed.

[0067] By detecting the pressure and flow rate of the liquid medium discharged from the outlet through the pressure sensor and the flow sensor 4, the actual output waveform of the liquid medium discharged from the outlet can be obtained. By comparing the actual output waveform with the physiological waveform to be imitated, the reciprocating frequency, maximum stroke and / or movement acceleration of the diaphragm 11 are corrected. Finally, the actual output waveform is made consistent with the physiological waveform to be imitated, that is, the closed-loop control of the pulsating pump system is realized, and the accuracy of the simulated physiological waveform is ensured.

[0068] Moreover, the driving component 2 drives the diaphragm 11 to move. By changing the parameters of the driving component 2, the movement parameters of the diaphragm 11 can be changed, so as to simulate a variety of physiological waveforms and meet the simulation needs of different bionic vascular systems.

[0069] In some embodiments, a heating component 12 and a temperature sensor are arranged in the ventricular simulation cavity 1 for regulating the temperature of the liquid medium in the ventricular simulation cavity 1.

[0070] As Figure 5 shown, by adding a heating component 12 and a temperature sensor in the ventricular simulation cavity 1, the liquid medium in the ventricular simulation cavity 1 can be accurately temperature-controlled to simulate the human blood temperature, making the simulation scenario of the pulsating pump system closer to the actual blood supply scenario of human blood vessels.

[0071] In some embodiments, a first compliance cavity 3 is connected and arranged at the liquid outlet of the ventricular simulation cavity 1 for eliminating the turbulence in the liquid outlet pipe.

[0072] As Figure 3 and Figure 4 shown, a first compliance cavity 3 is arranged at the liquid outlet of the ventricular simulation cavity 1. The first compliance cavity 3 is a columnar structure, the bottom of which is connected to the liquid outlet, and the top is sealed. When the liquid outlet check valve 13 is opened, the liquid medium enters from the bottom of the first compliance cavity 3. Part of the liquid medium directly flows away along the liquid outlet pipe, and part accumulates in the first compliance cavity 3, compressing the air above the first compliance cavity 3 during the process. When the liquid outlet check valve 13 is closed, the liquid medium stops entering the first compliance cavity 3. At this time, the air above the first compliance cavity 3 returns to its original state, causing the liquid medium originally stored in the first compliance cavity 3 to be discharged through the liquid outlet pipe, thereby eliminating the turbulence in the liquid outlet pipe.

[0073] In some embodiments, an atrial simulation cavity 7 is connected and arranged at the liquid inlet of the ventricular simulation cavity 1. The atrial simulation cavity 7 is a columnar structure with an open top, and the bottom of the columnar structure is connected to the liquid inlet pipe.

[0074] As Figure 4 and Figure 6 shown, an atrial simulation cavity 7 with an open top is arranged at the liquid inlet to simulate the low pressure in the atrium and ensure that the liquid inlet check valve 14 is in a closed state when the pressure in the ventricular simulation cavity 1 is high.

[0075] In actual use, by adjusting the water column height in the atrial simulation cavity 7, the simulation of the low-pressure atrial environment can be achieved.

[0076] In some embodiments, a vascular damping simulation component 6 and a second compliance cavity 5 are connected in series in the liquid inlet pipe upstream of the atrial simulation cavity 7. The vascular damping simulation component 6 is used to simulate the flow damping of the liquid medium in the blood vessel, and the second compliance cavity 5 is used to simulate the contraction / dilation of the blood vessel.

[0077] As Figure 4 and Figure 6 shown, in practical applications, the liquid inlet pipe is connected to the liquid outlet of the bionic blood vessel system. A blood vessel damping simulation component 6 with adjustable internal diameter is arranged in the liquid inlet pipe. By changing the internal diameter, that is, changing the resistance of the liquid medium to flow back, the blood flow resistance in the blood vessel is simulated accordingly;

[0078] Moreover, a second compliance chamber 5 is added in the liquid inlet pipe. The second compliance chamber 5 is of a columnar structure and is connected to the liquid inlet pipe at the bottom. When the liquid medium flows through the second compliance chamber 5, it can directly flow out of the liquid inlet pipe or be stored in the second compliance chamber 5. The principle is that when the blood vessel damping simulation component 6 is fully opened, after the liquid medium enters the second compliance chamber 5, it directly flows into the liquid inlet pipe through the blood vessel damping simulation component 6. When the blood vessel damping simulation component 6 is partially closed, after the liquid medium enters the second compliance chamber 5, part of it flows into the liquid inlet pipe through the blood vessel damping simulation component 6, and part is stored in the second compliance chamber 5, compressing the air in the second compliance chamber 5. When the driving component 2 drives the diaphragm 11 to move upward, the bionic blood vessel loses its power source inside. At this time, the compressed air restores, driving the liquid medium stored in the second compliance chamber 5 to flow back to the liquid inlet pipe and the bionic blood vessel to ensure the continuous positive pressure inside the bionic blood vessel and simulate the contraction / dilation of real blood vessels during blood transmission.

[0079] In some embodiments, an openable / closable connection port is provided at the top of the second compliance chamber 5 and is connected to this connection port through a gas regulating device to regulate the initial air pressure at the top inside the second compliance chamber 5 to simulate the mean pressure during the contraction / dilation process of blood vessels at different positions.

[0080] In some embodiments, the driving component 2 includes a linear motor 21 and a piston 23;

[0081] The linear motor 21 is fixedly connected to the ventricle simulation chamber 1 relatively and is used to drive the piston 23 to make reciprocating motions;

[0082] The piston 23 is fixedly connected to the diaphragm 11 relatively.

[0083] As Figure 5 shown, the driving component 2 adopts the combination of the linear motor 21 and the piston 23. Through the reciprocating motion of the linear motor 21, the reciprocating motion of the piston 23 is driven, and then the reciprocating motion of the diaphragm 11 is driven. The piston 23 is connected to the diaphragm 11, and there is a large contact force-bearing area between the two, which helps to avoid damage caused by concentrated stress on the surface of the diaphragm 11, and thus ensures the airtightness of the ventricle simulation chamber 1;

[0084] At the same time, using the linear motor 21 as the power source is convenient for precisely controlling the reciprocating frequency, maximum displacement, and motion acceleration of the diaphragm 11, thereby improving the accuracy of the output waveform.

[0085] In some embodiments, the driving assembly 2 adopts a combination of a voice coil motor and a piston 23. Among them, the voice coil motor can adjust the maximum displacement and motion acceleration of the piston 23 and the diaphragm 11 by changing the input power. At the same time, by changing the frequency of the input current, the reciprocating frequency of the piston 23 and the diaphragm 11 can be changed, thereby facilitating the simplification of the control logic of the driving assembly 2.

[0086] In some embodiments, the driving assembly 2 further includes a displacement sensor 22 for detecting the displacement of the piston 23.

[0087] As Figure 5 shown, by setting the displacement sensor 22 to detect the displacement of the piston 23 or the diaphragm 11, and directly feeding back the detection result to the control module of the linear motor 21 or the voice coil motor, the closed-loop control of the linear motor 21 or the voice coil motor is realized, and the output accuracy of the driving assembly 2 is ensured.

[0088] Moreover, by detecting the displacement of the piston 23, the output of each stroke of the motor can be deduced, thereby improving the control accuracy of the simulation.

[0089] In addition to the pulsating pump system disclosed in each of the above embodiments, the present invention also provides a medical device implantation simulation system including the above pulsating pump system, including a bionic blood vessel system and the pulsating pump system of any one of the above. The liquid inlet pipe is communicated with the liquid outlet of the bionic blood vessel system, and the liquid outlet pipe is communicated with the liquid inlet of the bionic blood vessel system.

[0090] As Figure 7 shown, part I is the intracranial blood vessel, part II is the thoracic aorta blood vessel, part III is the lower limb blood vessel, a is the left middle cerebral artery of the brain, b is the right middle cerebral artery of the brain, c is the tibiofibular artery, d is the femoral popliteal artery, and e is the left ventricular outlet;

[0091] In actual simulation, e is communicated with the liquid outlet pipe of the ventricular simulation cavity 1. When a, b, c, and d are respectively communicated with the liquid inlet pipe, a complete medical device implantation simulation system is formed, and the liquid medium circulates between the pulsating pump system and the bionic blood vessel system.

[0092] In addition to the pulsating pump system disclosed in each of the above embodiments, the present invention also provides a control method applied to the above pulsating pump system. As Figure 8 shown, it includes the steps of:

[0093] The control host computer receives a selection instruction for simulating a physiological waveform, and according to the selection instruction, controls the driving assembly 2 to drive the diaphragm 11 to act with an output model of corresponding parameters;

[0094] The control flow sensor 4 and the pressure sensor detect the flow rate and pressure of the liquid medium in the liquid outlet pipe to obtain the actual output waveform;

[0095] Determine whether the actual output waveform is consistent with the physiological waveform to be simulated;

[0096] If so, maintain the parameters of the current output model;

[0097] If not, correct the parameters of the current output model and return to the step of obtaining the actual output waveform.

[0098] During operation, the operator selects the physiological waveform to be simulated through the host computer, and the host computer controls and drives the component 2 with the output model of the corresponding parameters to drive the pulsating pump system to output the liquid medium;

[0099] The pressure sensor and the flow sensor 4 detect the output pressure and flow rate of the liquid medium in the liquid outlet pipe to obtain the actual output waveform of the liquid medium in the liquid outlet pipe, and then compare the actual output waveform with the physiological waveform to be simulated, and then specifically correct the parameters of the output model to make the actual output waveform consistent with the physiological waveform to be simulated, so as to reproduce the physiological waveforms of blood transmission in different blood vessels in the human body.

[0100] In some embodiments, the parameters of the output model include at least one of the input power, maximum stroke, reciprocating frequency, motion acceleration, and current frequency of the driving component 2.

[0101] When adjusting the parameters of the output model, at least one of the maximum stroke, reciprocating frequency, and motion acceleration of the linear motor 21 can be specifically adjusted, or at least one of the input power and current frequency of the sonic motor can be specifically adjusted.

[0102] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same and similar parts among the various embodiments can be referred to each other.

[0103] The pulsating pump system, the medical device implantation simulation system and the control method provided by the present invention have been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A pulsatile pump system for simulating the implantation of medical devices, characterized in that, Comprising: A ventricular simulation chamber (1) with a diaphragm (11) disposed therein for changing the pressure within the ventricular simulation chamber (1) by the action of the diaphragm (11), and the inlet and outlet of the ventricular simulation chamber (1) are respectively connected to an inlet pipe and an outlet pipe through one-way valves, and a circulation system is used to be connected in series between the inlet pipe and the outlet pipe; A driving assembly (2) fixedly connected to the ventricular simulation chamber (1) relatively for driving the diaphragm (11) to perform regular reciprocating motion; A flow sensor (4) connected in series to the outlet pipe for detecting the flow rate of the liquid medium in the circulation system; A pressure sensor connected in series to the outlet pipe for detecting the pressure of the liquid at a specified position in the circulation system.

2. The pulsating pump system according to claim 1, characterized in that, A heating assembly (12) and a temperature sensor are disposed within the ventricular simulation chamber (1) for regulating the temperature of the liquid medium within the ventricular simulation chamber (1).

3. The pulsating pump system according to claim 1, wherein, A first compliance chamber (3) is communicatively provided at the outlet of the ventricular simulation chamber (1) for eliminating the turbulence in the outlet pipe.

4. The pulsating pump system according to claim 1, characterized in that, An atrial simulation chamber (7) is communicatively provided at the inlet of the ventricular simulation chamber (1), the atrial simulation chamber (7) is a columnar structure with an open top, and the bottom of the columnar structure is connected to the inlet pipe.

5. The pulsating pump system according to claim 4, characterized in that, Upstream of the atrial simulation chamber (7), the inlet pipe is successively connected in series with a vascular damping simulation assembly (6) and a second compliance chamber (5), the vascular damping simulation assembly (6) is used to simulate the flow damping of the liquid medium in the blood vessel, and the second compliance chamber (5) is used to simulate the contraction / dilation of the blood vessel.

6. The pulsating pump system according to claim 1, wherein The driving assembly (2) includes a linear motor (21) and a piston (23); The linear motor (21) is fixedly connected to the ventricular simulation chamber (1) relatively for driving the piston (23) to perform reciprocating motion; The piston (23) is fixedly connected to the diaphragm (11) relatively.

7. The pulsating pump system according to claim 6, wherein, The driving assembly (2) further includes a displacement sensor (22) for detecting the displacement of the piston (23).

8. A medical device implantation simulation system, characterized in that, Comprising a bionic blood vessel system and the pulsating pump system according to any one of claims 1-7, the inlet pipe is communicated with the outlet of the bionic blood vessel system, and the outlet pipe is communicated with the inlet of the bionic blood vessel system.

9. A control method, characterized in that, Applied to the pulsating pump system according to any one of claims 1-7, including the steps of: The control host computer receives a selection instruction for simulating a physiological waveform, and according to the selection instruction, controls the driving assembly (2) to drive the diaphragm (11) to act with an output model of corresponding parameters; Controlling the flow sensor (4) and the pressure sensor to detect the flow rate and pressure of the liquid medium in the circulation system to obtain an actual output waveform; Judging whether the actual output waveform is consistent with the physiological waveform to be simulated; If so, maintaining the parameters of the current output model; If not, correcting the parameters of the current output model and returning to the step of obtaining the actual output waveform.

10. The control method according to claim 9, wherein The parameters of the output model include at least one of the input power, maximum stroke, reciprocating frequency, motion acceleration, and current frequency of the driving assembly (2).

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