CN115560969A

CN115560969A - Blood pump test device

Info

Publication number: CN115560969A
Application number: CN202211237927.8A
Authority: CN
Inventors: 华奇; 李仁和; 陈佳伟; 李昌达
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-01-03

Abstract

The invention discloses a blood pump test device, which relates to the technical field of medical research and comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a water storage tank, the top of the bottom plate is fixedly connected with a side plate, one side of the side plate is fixedly connected with a metering tank, one side of the metering tank is fixedly connected with a first inlet-outlet regulating valve, one end of the first inlet-outlet regulating valve is fixedly connected with a first connecting pipe, and one end of the first connecting pipe extends into the water storage tank.

Description

Blood pump test device

Technical Field

The invention relates to the technical field of medical research, in particular to a blood pump test device.

Background

Blood pumps are common medical devices, and can provide flowing power for blood. For example, the heart is the power organ of the human body, the main function of the heart is to provide power for the blood flow and to transport the blood to various parts of the body, when the heart of the patient is in trouble and cannot provide power, the life of the patient is dangerous, and the blood pump can be inserted into the heart of the patient to provide power for the blood of the patient.

However, when the flow characteristics (such as pressure, flow rate, shear stress and other basic characteristic parameters) and the hemolysis phenomenon in the blood pump test device at low flow are researched, and the position and influence factors of the pump causing blood damage during operation are researched, the flow conditions of the blood pump and the liquid in the pipeline cannot be directly observed, so that the research on the flow characteristics (such as pressure, flow rate, shear stress and other basic characteristic parameters) and the hemolysis phenomenon in the blood pump test device at low flow is influenced, and the research effect on the position and influence factors of the pump causing blood damage during operation is disclosed.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a blood pump test device, which solves the problems in the background art.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a blood pump test device, includes the bottom plate, the top fixedly connected with water storage tank of bottom plate, the top fixedly connected with curb plate of bottom plate, one side fixedly connected with metering tank of curb plate, the first governing valve of importing and exporting of one side fixedly connected with of metering tank, the first connecting pipe of one end fixedly connected with of first governing valve of importing and exporting, the one end of first connecting pipe extends to inside the water storage tank, one side of curb plate and the one side fixedly connected with rotameter that is located the metering tank, rotameter's one end is provided with first raceway, the one end of first raceway extends to inside the metering tank, rotameter's the other end is provided with the second raceway, the top fixedly connected with base of bottom plate, the top of base is provided with the motor, the top of base just is located one side of motor and installs the pump body, the motor is connected with the pump body, the other end of second raceway is connected with the one end of blood pump body, one side fixedly connected with the second connecting pipe of water storage tank, the one end fixedly connected with second connecting pipe that the second was imported and exported, the one end fixedly connected with the third connecting pipe of blood pump body is connected with the high-speed camera mounting bracket.

Optionally, a cold light source is arranged on one side of the side plate and below the third connecting pipe.

Optionally, a control box is arranged on one side of the side plate.

Optionally, a U-tube differential pressure gauge is arranged at the top of the bottom plate, and the U-tube differential pressure gauge is connected with the second water delivery pipe and the third connecting pipe.

Optionally, the motor is connected with an impeller inside the blood pump body through a coupling.

Optionally, the blood pump body is made of organic glass.

Optionally, the first connecting pipe, the first water pipe, the second connecting pipe and the third connecting pipe are all made of organic glass.

Optionally, the lens end of the high-speed camera is matched with an impeller inside the blood pump body.

The invention provides a blood pump test device, which has the following beneficial effects:

this blood pump test device can realize studying the inside flow characteristic of blood pump body under the low flow, like pressure, velocity of flow, shear stress etc. basic feature parameter and hemolysis to and reveal the position and the influence factor that the pump caused blood damage when moving, test through this device, can observe the flow situation of the inside liquid of blood pump body, thereby conveniently optimize the structure of blood pump body, improve hydraulic performance and reduce going on of the damage work of blood pump body to blood.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic diagram of the high-speed camera structure of the present invention.

In the figure: 1. a base plate; 2. a side plate; 3. a water storage tank; 4. a metering tank; 5. a first inlet and outlet regulating valve; 6. a first connecting pipe; 7. a first water delivery pipe; 8. a rotameter; 9. a base; 10. a motor; 11. a blood pump body; 12. a second water delivery pipe; 13. a second connecting pipe; 14. a second inlet and outlet regulating valve; 15. a third connecting pipe; 16. a mounting frame; 17. a cold light source; 18. a U-tube differential pressure gauge; 19. a control box; 20. a high-speed camera.

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.

Referring to fig. 1 to 3, the present invention provides a technical solution: the utility model provides a blood pump test device, comprising a base plate 1, bottom plate 1's top fixedly connected with water storage tank 3, bottom plate 1's top fixedly connected with curb plate 2, one side fixedly connected with metering tank 4 of curb plate 2, the first exit control valve 5 of one side fixedly connected with of metering tank 4, the first one end fixedly connected with of first exit control valve 5 is connected with first connecting pipe 6, the one end of first connecting pipe 6 extends to inside water storage tank 3, one side of curb plate 2 and one side fixedly connected with rotameter 8 that is located metering tank 4, rotameter 8's one end is provided with first raceway 7, the one end of first raceway 7 extends to inside metering tank 4, rotameter 8's the other end is provided with second raceway 12, bottom plate 1's top fixedly connected with base 9, base 9's top is provided with motor 10, blood pump body 11 is installed on one side of base 9's top and that is located motor 10, motor 10 is connected with blood pump body 11, the other end of second raceway 12 is connected with the one end of blood pump body 11, one side fixedly connected with second connecting pipe 13, the one end fixedly connected with second connecting pipe 14 that the exit control valve 14, the one end of second raceway 15 is connected with the one end of the fixed connection of the third connecting pipe 16 of the curb plate is connected with blood pump mounting bracket 15, the one end of the side of the fixed connection of the curb plate is connected with.

Wherein, one side of curb plate 2 and the below that is located third connecting pipe 15 are provided with cold light source 17, use cold light source 17 to carry out the light filling to the shooting region of high-speed camera 20, in order to make the image clearer, obtain better shooting effect.

Wherein, one side of the side plate 2 is provided with a control box 19 for controlling the operation of the device.

Wherein, the top of the bottom plate 1 is provided with a U-shaped pipe differential pressure gauge 18, the U-shaped pipe differential pressure gauge 18 is connected with the second water conveying pipe 12 and the third connecting pipe 15, and the U-shaped pipe differential pressure gauge 18 is used for measuring the inlet and outlet pressure when the blood pump body 11 operates.

Wherein, motor 10 is connected with the inside impeller of blood pump body 11 through the shaft coupling for motor 10 can drive the inside impeller of blood pump body 11 through the shaft coupling and rotate, thereby can make 11 work of blood pump body.

Wherein, blood pump body 11 adopts organic glass to make, and the visual effect of organic glass material is better, and the flow situation of the 11 inside liquid of observation blood pump body that can be clear among the test process to adopt the filler sealed, sealing performance is better, can change the impeller according to experimental requirement simultaneously, with the inside flow of studying different impeller blood pump bodies 11.

The first connecting pipe 6, the first water pipe 7, the second water pipe 12, the second connecting pipe 13 and the third connecting pipe 15 are made of organic glass, the organic glass material is good in visualization effect, and the flowing condition of liquid inside the first connecting pipe 6, the first water pipe 7, the second water pipe 12, the second connecting pipe 13 and the third connecting pipe 15 can be clearly observed in the test process.

The lens end of the high-speed camera 20 is matched with the impeller inside the blood pump body 11, and during testing, the lens of the high-speed camera 20 is kept perpendicular to the impeller as much as possible, and the shooting position is placed in the center of the shooting picture as much as possible, so that errors generated during testing of the blood pump body 11 can be reduced.

In summary, in the blood pump test device, when in use, the output end of the motor 10 causes the impeller inside the blood pump body 11 to rotate through the coupling, at this time, the liquid inside the water storage tank 3 is sucked into the first inlet/outlet regulating valve 5 through the first connecting pipe 6, then enters the measuring tank 4, then enters the rotameter 8 through the first water pipe 7, then enters the blood pump body 11 through the second water pipe 12, then enters the second connecting pipe 13 through the third connecting pipe 15 and the second inlet/outlet regulating valve 14, and then enters the water storage tank 3 through the second connecting pipe 13, the flow rate is regulated and measured by the rotameter 8 and the measuring tank 4, the speed of the rotation speed of the blood pump body 11 is controlled by the control box 19, the high-speed camera 20 is used for shooting the flow inside the blood pump body 11, in order to reduce errors generated during the test of the blood pump body 11, the lens of the high-speed camera 20 and the impeller inside the blood pump body 11 should be kept perpendicular as much as possible, and the shooting position is placed in the center of the shooting picture as much as possible, the flow rate is measured by the volume method, so as to ensure the accuracy of the pressure difference of the rotameter 8 when the blood pump body 11 is operated, the blood pump.

This blood pump test device can realize the inside flow characteristic of a blood pump test device next kind of low discharge: basic characteristic parameters such as pressure, flow rate, shear stress and the like and hemolysis are researched, and the position and influencing factors of blood damage caused by the operation of the pump are revealed; the research result provides useful reference for optimizing the structure of the blood pump, improving the hydraulic performance and reducing the damage of the blood pump to blood.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any number of indicated technical features, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate agent, and may be used for communicating the inside of two elements or interacting relation of two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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

1. The utility model provides a blood pump test device, includes bottom plate (1), its characterized in that: the top of the bottom plate (1) is fixedly connected with a water storage tank (3), the top of the bottom plate (1) is fixedly connected with a side plate (2), one side of the side plate (2) is fixedly connected with a metering tank (4), one side of the metering tank (4) is fixedly connected with a first inlet and outlet regulating valve (5), one end of the first inlet and outlet regulating valve (5) is fixedly connected with a first connecting pipe (6), one end of the first connecting pipe (6) extends into the water storage tank (3), one side of the side plate (2) is fixedly connected with a rotameter (8) and is positioned at one side of the metering tank (4), one end of the rotameter (8) is provided with a first water pipe (7), one end of the first water pipe (7) extends into the metering tank (4), the other end of the rotameter (8) is provided with a second water pipe (12), the top of the bottom plate (1) is fixedly connected with a base (9), the top of the base (9) is provided with a motor (10), one side of the top of the base (9) and one side of the motor (10) is provided with a water storage pump body (11), and one end of the second water pipe (13) is connected with a blood pump (11), governing valve (14) are imported and exported to the one end fixedly connected with second of second connecting pipe (13), the one end fixedly connected with third connecting pipe (15) of governing valve (14) are imported and exported to the second, the one end of third connecting pipe (15) is connected with the other end of blood pump body (11), one side of curb plate (2) is provided with mounting bracket (16), one end fixedly connected with high-speed camera (20) of mounting bracket (16).

2. The blood pump test device according to claim 1, characterized in that: and a cold light source (17) is arranged on one side of the side plate (2) and below the third connecting pipe (15).

3. The blood pump test device according to claim 1, characterized in that: and a control box (19) is arranged on one side of the side plate (2).

4. The blood pump test device according to claim 1, characterized in that: the top of the bottom plate (1) is provided with a U-shaped pipe differential pressure meter (18), and the U-shaped pipe differential pressure meter (18) is connected with the second water conveying pipe (12) and the third connecting pipe (15).

5. The blood pump test device of claim 1, wherein: the motor (10) is connected with an impeller inside the blood pump body (11) through a coupler.

6. The blood pump test device according to claim 1, characterized in that: the blood pump body (11) is made of organic glass.

7. The blood pump test device according to claim 1, characterized in that: the first connecting pipe (6), the first water conveying pipe (7), the second water conveying pipe (12), the second connecting pipe (13) and the third connecting pipe (15) are all made of organic glass.

8. The blood pump test device of claim 1, wherein: the lens end of the high-speed camera (20) is matched with the impeller inside the blood pump body (11).