CN115569301A - Automatic detection system and detection method for ventricular assist pump - Google Patents

Abstract

The invention discloses an automatic detection system and method for a ventricular assist pump, and the automatic detection system comprises a container tank, an electric damping valve, a detection assembly and a controller, wherein a liquid outlet of the container tank is connected with a liquid inlet of the ventricular assist pump through a first pipeline, a liquid inlet of the container tank is connected with a liquid outlet of the ventricular assist pump through a second pipeline, the electric damping valve is arranged on a second pipeline between the container tank and the ventricular assist pump, the detection assembly comprises a first pressure sensor arranged on the first pipeline, a second pressure sensor and a flow sensor arranged on the second pipeline, and the controller receives data of the first pressure sensor, the second pressure sensor and the flow sensor and controls the rotating speed of the ventricular assist pump and the action of the electric damping valve. The method simplifies the steps and the flow for measuring the Q-H curve of the ventricular assist pump, obtains more experimental data compared with the traditional hand-recording method, reduces the personal error of detection, and realizes more accurate mapping of the Q-H curve.

Description

Automatic detection system and detection method for ventricular assist pump

Technical Field

The invention relates to the technical field of medical instrument testing, in particular to an automatic detection system and method for a ventricular assist pump.

Background

Heart failure is the terminal stage of a variety of cardiac diseases, with the prognosis mostly poor. According to epidemiological investigation, the incidence of heart failure in China is continuously increased in the last decades, the prevalence of 25-64-year-old people is 0.57%, the prevalence of 65-79-year-old people is 3.86%, the prevalence of 80-year-old people is 7.55%, and the mortality rate in 5 years is 50%. The ventricular assist device is one of the most effective treatment means for the end-stage heart failure, has the functions of assisting the heart to pump blood and ensuring the blood supply of organs, can obviously improve the life quality and the survival rate of patients with heart failure, is used as a bridge for heart transplantation treatment for patients with transplantation conditions, can be used for target treatment for patients without transplantation conditions, and can also be used as a rehabilitation bridge for patients with acute heart failure or acute cardiogenic shock to temporarily replace the heart function and prevent the cardiac muscle from further ischemic damage.

In the development process of the ventricular assist device, the performance of the ventricular assist device needs to be detected through a simulated hydraulic experiment, wherein a Q-H curve (head-flow curve) describes the corresponding relation between flow and head at different rotating speeds, and the head can be converted into pressure (mmHg), which is one of the most important characteristic curves of the ventricular assist pump. The Q-H curve can reflect the basic performance of the pump and is an important basis for selecting different ventricular assist pumps, and the determination of the Q-H curve is an essential step in the development process of the ventricular assist pump. Under the condition that the pump rotating speed is constant, the Q-H curve is constant, and when the rotating speed of the pump is changed, the Q-H curve is correspondingly changed.

In a laboratory research and development environment, no unified, simple and convenient standard method exists for determining the Q-H curve of the ventricular assist pump, and most technicians design detection devices and methods by themselves, generally connect a blood pump by using a pipeline, and add a manual damping valve (a clamp for adjusting the clamping degree), a pressure sensor, a flow sensor, a liquid container and other components on a loop for testing. During the test, the main problem that exists is complex operation, needs the damping of continuous manual change damping valve in order to change the lift under each rotational speed, and the data point of record is limited and needs an assistant to assist manual record experimental data, is difficult to obtain a large amount of accurate data in the short time, and nonstandard experimental operation has great influence to the experimental error, probably leads to the skew of testing result.

Disclosure of Invention

In order to solve the above problems in the prior art, an object of the present invention is to provide an automatic detection system and a detection method for a ventricular assist pump, which can simply and conveniently determine steps and flows of a Q-H curve of the ventricular assist pump, obtain more experimental data than a conventional manual method, reduce human errors in detection, and achieve more accurate mapping of the Q-H curve.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a ventricular assist pump automated detection system, comprising:

the liquid outlet of the container tank is connected with the liquid inlet of the ventricular assist pump through a first pipeline, and the liquid inlet of the container tank is connected with the liquid outlet of the ventricular assist pump through a second pipeline;

an electric damper valve disposed on the second line between the canister and the ventricular assist pump;

the detection assembly comprises a first pressure sensor arranged on the first pipeline, a second pressure sensor arranged on the second pipeline and a flow sensor, the second pressure sensor is arranged between the electric damping valve and the ventricular assist pump, and the flow sensor is arranged between the second pressure sensor and the electric damping valve;

the input end of the controller is respectively connected with the first pressure sensor, the second pressure sensor and the flow sensor, and the output end of the controller is respectively connected with the ventricular assist pump and the electric damping valve;

the controller receives data of the first pressure sensor, the second pressure sensor and the flow sensor, controls the rotating speed of the ventricular assist pump and controls the action of the electric damping valve.

As a further improvement of the present invention, a temperature sensor is further disposed on the first pipeline and/or the second pipeline, and the temperature sensor is electrically connected with the controller.

As a further improvement of the present invention, the electric damper valve includes:

a housing;

the motor is arranged at the top of the shell and is connected with the output end of the controller;

one end of the screw rod is coaxially connected with the output end of the motor, and the other end of the screw rod extends into the shell from the top of the shell;

the upper pressure plate is arranged in the shell and can move up and down along with the screw rod when the screw rod rotates;

the lower pressing plate is arranged at the bottom of the shell, and the second pipeline is positioned between the upper pressing plate and the lower pressing plate and penetrates through the shell;

when the motor rotates, the screw is driven to rotate, and the upper pressing plate is driven to slide up and down in the shell.

As a further improvement of the invention, the top end of the upper pressure plate is provided with a screw groove matched with the screw rod, and the side walls at the left end and the right end of the upper pressure plate are contacted with the inner wall of the shell.

As a further improvement of the invention, the bottom of the upper pressure plate and the top of the lower pressure plate are both provided with corresponding lugs.

As a further improvement of the invention, the upper end of the container tank is cylindrical, the lower end of the container tank is conical, the liquid outlet of the container tank is arranged at the lowest part of the container tank, and the liquid inlet of the container tank is arranged at the highest part of the container tank.

As a further improvement of the invention, the top end of the container tank is provided with a sample adding port.

As a further improvement of the invention, the outer wall of the container tank is provided with capacity scales, and the container tank is made of transparent materials.

As a further improvement of the present invention, the first pipeline and the second pipeline are made of transparent flexible pipes.

As a further improvement of the present invention, the first pressure sensor and the second pressure sensor are disposed on the same horizontal plane.

As a further improvement of the invention, the distance between the first pressure sensor and the ventricular assist pump liquid inlet is less than or equal to 10cm, and the distance between the second pressure sensor and the ventricular assist pump liquid outlet is less than or equal to 10cm.

As a further improvement of the invention, the distance between the flow sensor and the second pressure sensor is 15-25cm, and the distance between the flow sensor and the electric damping valve is 15-25cm.

As a further improvement of the present invention, the flow sensor is a non-contact flow sensor.

A detection method of an automatic detection system of a ventricular assist pump comprises the following steps:

s1, filling a solution into a container through a sample filling port, so that the solution flows to a ventricular assist pump through a first pipeline under the action of gravity to automatically fill the pipeline and a pump head and discharge air;

s2, manually setting a rotating speed range and an interval to be measured through a controller;

s3, measuring and recording the flow and pressure changes from the fully-opened electric damping valve to the fully-closed electric damping valve at a fixed rotating speed;

s4, recording the inlet pressure, the outlet pressure and the flow of the ventricular assist pump, and generating a curve according to the rotating speed value;

and S5, setting another fixed rotating speed according to the rotating speed range and the interval in the step S2, repeating the steps S3 and S4, and finishing the Q-H curves at all the rotating speeds.

Compared with the prior art, the invention has the following beneficial effects:

according to the automatic detection system and the detection method for the ventricular assist pump, the controller is used for controlling the electric damping valve to automatically adjust the liquid flowing pressure in the second pipeline, so that the flow pressure of the ventricular assist pump under different rotating speeds and different pipeline loads is automatically adjusted, all detection parameters can be automatically recorded, a data table and a curve are generated, the step and the process of measuring the Q-H curve of the ventricular assist pump are greatly simplified, more experimental data are obtained compared with the traditional manual recording method, the detection artificial error is reduced, and the Q-H curve is accurately mapped.

Drawings

FIG. 1 is a schematic diagram of an automated ventricular assist pump detection system according to the present invention;

FIG. 2 is a schematic diagram of an electric damping valve in an automatic detection system of a ventricular assist pump according to the present invention;

fig. 3 is a schematic diagram of a Q-H curve (head-flow curve) detected by the automatic detection system of the ventricular assist pump according to the present invention.

In the drawings:

100. a canister; 110. a sample addition port;

200. a ventricular assist pump;

H. a first pipeline;

l, a second pipeline;

300. an electric damper valve; 310. a housing; 320. a motor; 330. a screw; 340. an upper pressure plate; 350. a lower pressing plate;

400. a detection component; 410. a first pressure sensor; 420. a second pressure sensor; 430. a flow sensor; 440. a temperature sensor;

500. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 to 2 are schematic structural diagrams illustrating an embodiment of an automated ventricular assist pump detection system according to the present invention, and a main body of the system includes a tank 100, a first pipeline H, a second pipeline L, an electric damping valve 300, a detection assembly 400, and a controller 500.

The container tank 100 is used for storing liquid to be detected, different amounts of liquid can simulate different heart preloads, a liquid outlet of the container tank 100 is connected with a liquid inlet of the ventricular assist pump 200 through a first pipeline H, and a liquid inlet of the container tank 100 is connected with a liquid outlet of the ventricular assist pump 200 through a second pipeline L. Preferably, in this embodiment, the upper end of the container 100 is a cylindrical shape, the lower end of the container 100 is a conical shape, the liquid outlet of the container 100 is disposed at the lowest part of the container 100, the liquid inlet of the container 100 is disposed at the uppermost part of the container 100, when liquid circulates, bubbles are generated in the container 100 due to impact, the liquid inlet of the ventricular assist pump 200 affects the liquid circulation if bubbles enter, the liquid outlet of the container 100 is disposed at the lowest end of the conical end of the container 100, and the liquid outlet of the container 100 is disposed above the container 100, so that bubbles are prevented from entering the circulation inlet, a conical barrel is used to replace various blood containers in the conventional detection method, the conical outlet at the lower end limits the bubbles which may be generated to enter subsequent circuits and blood pumps, experimental errors are reduced, and experimental devices are protected. Preferably, the outer wall of the container 100 is provided with a volume scale and the container is made of a transparent material for the convenience of the inspection staff. The top end of the container 100 is provided with a sample port 110, which is convenient for pouring liquids with different volumes. The canister 100 and the ventricular assist pump 200 form a complete circuit by the connection of the first line H and the second line L. Preferably, in the present embodiment, the first pipeline H and the second pipeline L are made of transparent flexible pipes, such as PVC or other transparent flexible pipes, so as to facilitate observation of whether bubbles exist in the pipelines, and the inner diameters of the first pipeline H and the second pipeline L may be 3/8 inch, 1/4 inch, 1/2 inch or other dimensions.

An electrically operated damper valve 300 is provided in the second line L between the canister 100 and the ventricular assist pump 200 for regulating the fluid flow pressure in the second line L, as well as regulating the system load (simulating cardiac afterload). Specifically, the electric damper valve 300 includes a housing 310, a motor 320, a screw 330, an upper pressure plate 340, and a lower pressure plate 350. The motor 320 is installed at the top of the housing 310 and connected to the output end of the controller 500, one end of the screw 330 is coaxially connected to the output end of the motor 320, the other end of the screw extends into the housing 310 from the top of the housing 310, the upper platen 340 is installed in the housing 310 and can move up and down along with the screw 330 when the screw 330 rotates, the lower platen 350 is installed at the bottom of the housing 310, and the second pipeline L is located between the upper platen 340 and the lower platen 350 and penetrates through the housing 310. In this embodiment, the controller 500 controls the motor 320 to rotate, and the motor 320 drives the screw 330 to rotate, thereby driving the upper pressing plate 340 to slide up and down in the housing 310. When the clamping device is used, firstly, one end of the second pipeline L penetrates through the through hole formed in the shell 310, so that the second pipeline L is located between the upper pressing plate 340 and the lower pressing plate 350, when the motor 320 rotates clockwise, the driving screw 330 rotates to drive the upper pressing plate 340 to push towards the direction of the second pipeline L, clamping of the second pipeline L is gradually realized, and when the motor 320 rotates anticlockwise, the driving screw 330 rotates to drive the upper pressing plate 340 to push towards the direction far away from the second pipeline L, opening of the second pipeline L is gradually realized. The rotation angle of the motor 320 is positively correlated to the clamping degree of the screw 330, so that the clamping and opening of the second pipeline L can be precisely controlled, and the flowing pressure of the liquid in the second pipeline L is adjusted. Specifically, in this embodiment, a screw groove adapted to the screw 330 is formed at the top end of the upper pressing plate 340, and the side walls at the left and right ends of the upper pressing plate 340 contact the inner wall of the housing 310. When the motor 320 drives the screw 330 to move, the bottom of the screw 330 rotates in the screw groove formed in the top end of the upper pressing plate 340, so that the screw 330 is driven to slide up and down in the shell 310, the side walls of the left end and the right end of the upper pressing plate 340 are in contact with the inner wall of the shell 310, and the stability of the upper pressing plate 340 in the up-and-down sliding process is further ensured.

Preferably, in the present embodiment, in order to increase the clamping force of the upper pressure plate 340 and the lower pressure plate 350 on the pipeline, corresponding protrusions are provided on the bottom of the upper pressure plate 340 and the top of the lower pressure plate 350. When the pipeline clamping device is used, the second pipeline L is located between the bottom convex block of the upper pressing plate 340 and the top convex block of the lower pressing plate 350, the motor 320 drives the screw 320 to rotate, so that the upper pressing plate 340 is driven to advance towards the direction of the second pipeline L, the two convex blocks can further achieve a better clamping effect on the second pipeline L, and therefore the detection accuracy is improved.

The sensing assembly 400 includes a first pressure sensor 410 disposed on the first line H, a second pressure sensor 420 disposed on the second line L, and a flow sensor 430, the second pressure sensor 420 being disposed between the electrically operated damper valve 300 and the ventricular assist pump 200, the flow sensor 430 being disposed between the second pressure sensor 420 and the electrically operated damper valve 300. The first pressure sensor 410 is used to detect the pressure before the pump, the second pressure sensor 420 is used to detect the pressure after the pump, and the flow sensor 430 is used to detect the flow rate of the liquid in the second pipeline L.

Preferably, in this embodiment, in order to reduce errors and improve detection accuracy, the first pressure sensor 410 and the second pressure sensor 420 are disposed on the same horizontal plane, the first pressure sensor 410 needs to be as close as possible to the inlet of the ventricular assist pump 200, and the distance from the inlet of the ventricular assist pump 200 is less than or equal to 10cm, the second pressure sensor 420 is installed between the outlet of the ventricular assist pump 200 and the electric damping valve 300, and needs to be as close as possible to the outlet of the ventricular assist pump 200, and the distance from the outlet of the ventricular assist pump 200 is less than or equal to 10cm, so as to ensure detection accuracy. In the present embodiment, the distance between the first pressure sensor 410 and the inlet of the ventricular assist pump 200 and the distance between the second pressure sensor 420 and the outlet of the ventricular assist pump 200 are set to 10cm. Preferably, in the present embodiment, the flow sensor 430 is a non-contact flow sensor, specifically, the flow sensor 430 is an ultrasonic flow sensor, the flow sensor 430 is embedded outside the second pipeline L, and does not contact with the liquid in the second pipeline L, so that the flow sensor 430 performs non-contact measurement, and the flow sensor 430 releases ultrasonic waves and receives return ultrasonic waves to detect the liquid flow in the second pipeline L. In the present embodiment, the distance between the flow sensor 430 and the second pressure sensor 420 is 15-25cm, the distance between the flow sensor 430 and the electric damping valve 300 is 15-25cm, and preferably, the distance between the flow sensor 430 and the second pressure sensor 420 and the distance between the flow sensor 430 and the electric damping valve 300 are both 20cm.

The input end of the controller 500 is connected to the first pressure sensor 410, the second pressure sensor 420 and the flow sensor 430, and the output end of the controller 500 is connected to the ventricular assist pump 200 and the electric damper valve 300. The controller 500 receives data from the first pressure sensor 410, the second pressure sensor 420, the flow sensor 430, and the temperature sensor 440, and automatically controls the rotational speed of the ventricular assist pump 200 and the operation of the electric damping valve 300.

Preferably, in the present embodiment, in order to detect the temperature of the liquid in the pipe line in real time, a temperature sensor 440 is provided on the first pipe line H and/or the second pipe line L, and the temperature sensor 440 is electrically connected to the controller 500. In the present embodiment, the temperature sensor 440 is provided on the second line L near the tank 100.

The invention also provides an automatic detection method of the ventricular assist pump, which comprises the following steps:

s1, filling a solution into a container tank 100 through a sample adding port 110, so that the solution flows to a ventricular assist pump 200 through a first pipeline H under the action of gravity to automatically fill the pipeline and a pump head and discharge air;

s2, manually setting a rotating speed range and an interval to be measured through the controller 500;

s3, measuring and recording the flow and pressure changes from the complete opening of the electric damping valve 300 to the complete closing of the electric damping valve 300 at a fixed rotating speed;

s4, recording the inlet pressure, the outlet pressure and the flow of the ventricular assist pump 200, and generating a curve according to the rotating speed value;

and S5, setting another fixed rotating speed according to the rotating speed range and the interval in the step S2, repeating the steps S3 and S4, and finishing the Q-H curves at all the rotating speeds.

Specifically, at the detection preparation stage, a solution is filled into the container 100 through the sample port 110, the container 100 is filled with the liquid in advance, and the first tube H, the ventricular assist pump 200, and the second tube L are automatically filled with the liquid under the action of gravity. Controller 500 then presets the range of rotational speeds of ventricular assist pump 200 as well as interval parameters for the different rotational speeds. In the embodiment, the rotation speed range may be set to 1000-5000rpm, and the interval parameter is set to 1000rpm, so that the rotation speeds automatically measured by the system are the Q-H curves at 1000rpm, 2000rpm, 3000rpm, 4000rpm and 5000 rpm. It should be understood, however, that the rotation speed range and the interval parameter in the present embodiment are not limited to the specific examples described above, for example, the interval parameter may be set to be more than or less than 5000rpm, and the interval parameter may be set to be 500rpm or other values as long as the requirement of detection can be satisfied.

Then, entering the formal detection phase, the controller 500 controls the ventricular assist pump 200 to start, and under the set first rotation speed, that is, the preset 1000rpm in this embodiment, the controller 500 controls the electric damping valve 300 to gradually and completely release from the completely clamped state, under the condition that the electric damping valve 300 clamps the second pipeline L at different degrees, the first pressure sensor 410 detects the pressure of the fluid inlet of the ventricular assist pump 200 in real time, the second pressure sensor 420 detects the pressure of the fluid outlet of the ventricular assist pump 200 in real time, the flow sensor 430 detects the flow rate of the fluid in the second pipeline L in real time, the temperature sensors 440 detect the temperature of the fluid in the second pipeline L in real time and respectively transmit the temperature to the controller 500, the controller 500 regenerates a Q-H curve under different load conditions at 1000rpm according to the transmitted inlet pressure, outlet pressure, flow rate parameter and temperature parameter, and when the first rotation speed detection set by the system is completed, the controller 500 controls the electric damping valve 300 to completely clamp. Then the system automatically jumps to a preset second rotation speed, that is, the preset 2000rpm in this embodiment, the controller 500 controls the electric damping valve 300 to gradually and completely release from the completely clamped state, and the parameters are repeatedly detected and respectively transmitted to the controller 500, so as to regenerate the Q-H curves of different loads at 2000 rpm.

And finally, automatically repeating the operation by the system, and sequentially measuring the Q-H curves of different loads at preset 3000rpm, 4000rpm and 5000 rpm. The rotating speed range and the interval of the ventricular assist pump 200 are set through the controller 500, the system automatically adjusts the damping size of the electric damping valve 300, automatically records parameters such as rotating speed, flow, lift, the pressure of a liquid outlet of the ventricular assist pump 200 and the pressure of a liquid inlet of the ventricular assist pump 200, automatically generates Q-H curves at different rotating speeds, and controls the ventricular assist pump 200 to be closed and the electric damping valve 300 to be completely clamped after all preset rotating speeds are detected. As shown in fig. 3, in the present embodiment, the experimental medium is a glycerol-water mixture, and the system automatically records the flow rate and pressure detection parameters of the ventricular assist pump at different rotation speeds and different pipeline loads, so as to generate a Q-H curve. The abscissa is the detected flow rate at different rotation speeds, and the ordinate is the pressure difference (the difference between the outlet pressure after the pump and the inlet pressure before the pump). The whole set of detection equipment is standardized and unified, the steps and the process for measuring the Q-H curve of the ventricular assist pump are greatly simplified, more experimental data are obtained compared with the traditional manual recording method, the personal errors of detection are reduced, the system errors are reduced as far as possible, and the detection is more accurate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (14)

1. An automated ventricular assist pump detection system, comprising:

the container tank (100), wherein a liquid outlet of the container tank (100) is connected with a liquid inlet of the ventricular assist pump (200) through a first pipeline (H), and a liquid inlet of the container tank (100) is connected with a liquid outlet of the ventricular assist pump (200) through a second pipeline (L);

an electric damper valve (300), the electric damper valve (300) being disposed on the second line (L) between the canister (100) and the ventricular assist pump (200);

a sensing assembly (400), the sensing assembly (400) including a first pressure sensor (410) disposed on the first line (H), a second pressure sensor (420) and a flow sensor (430) disposed on the second line (L), the second pressure sensor (420) disposed between the electrically-actuated damping valve (300) and the ventricular assist pump (200), the flow sensor (430) disposed between the second pressure sensor (420) and the electrically-actuated damping valve (300);

the input end of the controller (500) is respectively connected with the first pressure sensor (410), the second pressure sensor (420) and the flow sensor (430), and the output end of the controller (500) is respectively connected with the ventricular assist pump (200) and the electric damping valve (300);

the controller (500) receives data of the first pressure sensor (410), the second pressure sensor (420) and the flow sensor (430), controls the rotating speed of the ventricular assist pump (200) and controls the action of the electric damping valve (300).

2. A ventricular assist pump automatic detection system according to claim 1, characterized in that the first pipeline (H) and/or the second pipeline (L) is further provided with a temperature sensor (440), and the temperature sensor (440) is electrically connected with the controller (500).

3. A ventricular assist pump automated detection system according to claim 1, wherein the electrically actuated damper valve (300) includes:

a housing (310);

the motor (320), the said motor (320) is installed on the top of the body (310) and connected with output end of the said controller (500);

one end of the screw rod (330) is coaxially connected with the output end of the motor (320), and the other end of the screw rod (330) extends into the shell (310) from the top of the shell (310);

an upper pressure plate (340), wherein the upper pressure plate (340) is installed in the shell (310) and can move up and down along with the screw (330) when the screw (330) rotates;

the lower pressure plate (350), the lower pressure plate (350) is installed at the bottom of the shell (310), and the second pipeline (L) is located between the upper pressure plate (340) and the lower pressure plate (350) and penetrates through the shell (310);

when the motor (320) rotates, the screw rod (330) is driven to rotate, and the upper pressure plate (340) is driven to slide up and down in the shell (310).

4. A ventricular assist pump automated detection system as claimed in claim 3, wherein: the top end of the upper pressure plate (340) is provided with a screw groove matched with the screw rod (330), and the side walls of the left end and the right end of the upper pressure plate (340) are in contact with the inner wall of the shell (310).

5. A ventricular assist pump automated detection system as claimed in claim 4, wherein: the bottom of the upper pressing plate (340) and the top of the lower pressing plate (350) are provided with corresponding convex blocks.

6. A ventricular assist pump automated detection system as claimed in claim 1, wherein: the upper end of the container tank (100) is cylindrical, the lower end of the container tank (100) is conical, a liquid outlet of the container tank (100) is formed in the lowest part of the container tank (100), and a liquid inlet of the container tank (100) is formed in the uppermost part of the container tank (100).

7. A ventricular assist pump automated detection system as claimed in claim 6, wherein: the top end of the container tank (100) is provided with a sample adding port (110).

8. A ventricular assist pump automated detection system as claimed in claim 7, wherein: the outer wall of the container (100) is provided with volume scales, and the container (100) is made of transparent materials.

9. A ventricular assist pump automated detection system as claimed in claim 1, wherein: the first pipeline (H) and the second pipeline (L) are made of transparent hoses.

10. A ventricular assist pump automated detection system as claimed in claim 1, wherein: the first pressure sensor (310) and the second pressure sensor (320) are arranged on the same horizontal plane.

11. A ventricular assist pump automated detection system as claimed in claim 10, wherein: the distance between the first pressure sensor (410) and the liquid inlet of the ventricular assist pump (200) is less than or equal to 10cm, and the distance between the second pressure sensor (420) and the liquid outlet of the ventricular assist pump (200) is less than or equal to 10cm.

12. A ventricular assist pump automated detection system as claimed in claim 10, wherein: the distance between the flow sensor (430) and the second pressure sensor (420) is 15-25cm, and the distance between the flow sensor (430) and the electric damping valve (300) is 15-25cm.

13. A ventricular assist pump automated detection system as claimed in claim 1, wherein: the flow sensor (430) is a non-contact flow sensor.

14. A detection method based on an automatic detection system for a ventricular assist pump according to any one of claims 1-13, characterized by comprising the following steps:

s1, filling a solution into a container tank (100) through a sample adding port (110), so that the solution flows to a ventricular assist pump (200) through a first pipeline (H) under the action of gravity to automatically fill the pipeline and a pump head and discharge air;

s2, manually setting a rotating speed range and an interval to be measured through a controller (500);

s3, measuring and recording the flow and pressure changes from the fully-opened electric damping valve (300) to the fully-closed electric damping valve (300) at a fixed rotating speed;

s4, recording the inlet pressure, the outlet pressure and the flow of the ventricular assist pump (200), and generating a curve according to the rotating speed value;

and S5, setting another fixed rotating speed according to the rotating speed range and the interval in the step S2, repeating the steps S3 and S4, and finishing the Q-H curves at all the rotating speeds.

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