CN218773977U - Heart valve testing device - Google Patents
Heart valve testing device Download PDFInfo
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- CN218773977U CN218773977U CN202220492220.0U CN202220492220U CN218773977U CN 218773977 U CN218773977 U CN 218773977U CN 202220492220 U CN202220492220 U CN 202220492220U CN 218773977 U CN218773977 U CN 218773977U
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Abstract
The utility model relates to a testing arrangement field for the medical raw materials especially relates to a heart valve testing arrangement. The pressure testing device comprises a cover, a testing cylinder, a pressure regulating part, a storage box, a mounting assembly and a filter screen; the cover is arranged on the test cylinder; the pressure regulating part is arranged on the cover; the inside of the test cylinder is provided with an installation component, and the bottom of the test cylinder extends into the storage box; the storage tank is divided into a liquid storage chamber and a gas storage chamber; the filter screen is arranged in the liquid storage chamber and the air storage chamber, divides the liquid storage chamber into a liquid storage cavity and a liquid return cavity, and divides the air storage chamber into a gas storage cavity and a gas return cavity; the liquid storage cavity, the liquid return cavity, the gas storage cavity and the gas return cavity are respectively communicated with the mounting assembly. The utility model discloses set up the height that installation component adjusted heart valve, and then change its and the distance of pressure regulating part, accurate control pressure effect satisfies the test demand of different heart valves. The test device can test liquid and gas, has compact structure and various functions, realizes the circulation and repeated test of the liquid and the gas, and has simple operation, energy conservation and environmental protection.
Description
Technical Field
The utility model relates to a medical raw materials testing arrangement field especially relates to a heart valve testing arrangement.
Background
Valvular heart disease is a common heart disease, and the incidence of the disease is higher and higher as the life of human beings is prolonged and the population is aged. Prosthetic heart valve replacement surgery is an effective method of treating severe valvular disease. For high-risk class III medical devices such as interventional valves that require long-term implantation into the body, safety and efficacy must be fully assessed and a corresponding risk/benefit analysis performed prior to application to the body. Among them, in vitro performance testing of a prosthetic heart valve is an important means for evaluating design and a prerequisite for entering clinical experiments, and needs to be detected by a testing device.
The existing heart valve testing device has single function, can not adjust the installation position of the heart valve, influences the flexibility and the practicability of the device, and can not meet the testing requirements of different heart valves.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the background art, a heart valve testing device is provided. The utility model discloses set up the height that installation component adjusted heart valve, and then change its and the distance of pressure regulating part, accurate control pressure effect satisfies the test demand of different heart valves. The test device can test liquid and gas, has compact structure and various functions, realizes the circulation and repeated test of the liquid and the gas, and has simple operation, energy conservation and environmental protection.
The utility model provides a heart valve testing device, which comprises a cover, a testing cylinder, a pressure regulating part, a storage box, an installation component and a filter screen; the cover is detachably arranged on the test cylinder; the pressure regulating part is arranged on the cover and acts on the test cylinder; the inside of the test cylinder is provided with an installation component, and the bottom of the test cylinder extends into the storage box; the storage tank is divided into a liquid storage chamber and a gas storage chamber; the filter screen is arranged in the liquid storage chamber and the air storage chamber, divides the liquid storage chamber into a liquid storage cavity and a liquid return cavity, and divides the air storage chamber into a gas storage cavity and a gas return cavity; the liquid storage cavity, the liquid return cavity, the gas storage cavity and the gas return cavity are respectively communicated with the mounting assembly.
The mounting assembly comprises a mounting plate, a limiting seat, a screw rod, a knob, a mounting ring and a telescopic sleeve; the limiting seat is arranged on the inner wall of the testing cylinder; the screw rod is rotatably arranged on the limiting seat, and the end part of the upper end of the screw rod is connected with the knob; the mounting plate is in threaded fit with the lead screw, moves up and down in the testing cylinder and is provided with a heart valve mounting hole; the mounting ring is arranged at the bottom of the mounting plate and covers the heart valve mounting hole; the upper end of the telescopic sleeve is communicated with the heart valve mounting hole through the mounting ring, and the lower end of the telescopic sleeve is connected with the bottom of the testing cylinder; a water inlet pipe, a water outlet pipe, a gas inlet pipe and a gas outlet pipe are arranged in the testing cylinder; the water inlet pipe is communicated with the telescopic sleeve and the liquid storage cavity; the water outlet pipe is communicated with the telescopic sleeve and the liquid return cavity; the air inlet pipe is communicated with the telescopic sleeve and the air storage cavity; the air outlet pipe is communicated with the telescopic sleeve and the air return cavity.
Preferably, the water inlet pipe and the water outlet pipe are provided with a first one-way valve with opposite flow control directions.
Preferably, the air inlet pipe and the air outlet pipe are provided with a second one-way valve with opposite flow control directions.
Preferably, the mounting plate is slidably connected to the inner wall of the test cartridge.
Preferably, the storage box is provided with an air/liquid pipe communicated with the liquid storage cavity, the liquid return cavity, the gas storage cavity and the gas return cavity.
Preferably, the cover is provided with a partition plate; the lower part of the clapboard is provided with internal threads; and the test cylinder is provided with an external thread matched with the cover.
Preferably, the first and second liquid crystal materials are, the pressure adjusting piece comprises a cylinder and a piston plate; the cylinder is arranged on the partition board, and the piston rod end of the cylinder extends out of the partition board and is connected with the piston board.
Preferably, a sealing bearing is arranged at the contact position of the partition plate and the piston rod of the cylinder.
Preferably, the piston plate is circular and has a diameter that matches the inside diameter of the test cartridge.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses set up the installation component, through rotatory knob, the lead screw rotates, and mounting panel and collar reciprocate, and flexible cover is synchronous flexible, adjusts heart valve's height, and then changes its distance with the pressure regulating part, and accurate control pressure effect satisfies different heart valve's test demand. The device can test liquid and gas, has compact structure and various functions, realizes the circulation and repeated test of the liquid and the gas, and has simple operation, energy conservation and environmental protection.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a top cross-sectional view of a test cartridge and storage box according to an embodiment of the present invention;
fig. 4 is a partially enlarged view of a portion a in fig. 2.
Reference numerals: 1. a cover; 2. a test cartridge; 3. a pressure regulating member; 4. a storage box; 5. a breather/bleeder tube; 6. mounting the component; 7. a reservoir chamber; 8. an air storage cavity; 9. a filter screen; 10. a liquid return cavity; 11. a gas return cavity; 12. a water inlet pipe; 13. a water outlet pipe; 14. an air inlet pipe; 15. an air outlet pipe; 16. mounting a plate; 17. a limiting seat; 18. a lead screw; 19. a knob; 20. a mounting ring; 21. a telescopic sleeve; 22. a partition plate; 23. a cylinder; 24. a piston plate.
Detailed Description
Example one
As shown in fig. 1-3, the present invention provides a heart valve testing device, which comprises a cover 1, a testing cylinder 2, a pressure adjusting member 3, a storage box 4, a mounting assembly 6 and a filter screen 9; the cover 1 is detachably arranged on the test cylinder 2; the pressure adjusting piece 3 is arranged on the cover 1 and acts on the testing cylinder 2; the mounting assembly 6 is arranged in the test cylinder 2, and the bottom of the mounting assembly extends into the storage box 4; the storage tank 4 is partitioned into a liquid storage chamber and a gas storage chamber; the filter screen 9 is arranged in the liquid storage chamber and the air storage chamber, divides the liquid storage chamber into a liquid storage cavity 7 and a liquid return cavity 10, and divides the air storage chamber into an air storage cavity 8 and an air return cavity 11; the liquid storage cavity 7, the liquid return cavity 10, the gas storage cavity 8 and the gas return cavity 11 are respectively communicated with the mounting assembly 6.
As shown in fig. 4, the mounting assembly 6 includes a mounting plate 16, a limiting seat 17, a lead screw 18, a knob 19, a mounting ring 20 and a telescopic sleeve 21; the limiting seat 17 is arranged on the inner wall of the test cylinder 2; the screw rod 18 is rotatably arranged on the limiting seat 17, and the upper end part of the screw rod is connected with a knob 19; the mounting plate 16 is in threaded fit with the lead screw 18, moves up and down in the test cylinder 2 and is provided with a heart valve mounting hole; the mounting ring 20 is arranged at the bottom of the mounting plate 16 and covers the heart valve mounting hole; the upper end of the telescopic sleeve 21 is communicated with the heart valve mounting hole through the mounting ring 20, and the lower end is connected with the bottom of the testing cylinder 2; a water inlet pipe 12, a water outlet pipe 13, an air inlet pipe 14 and an air outlet pipe 15 are arranged in the testing cylinder 2; the water inlet pipe 12 is communicated with the telescopic sleeve 21 and the liquid storage cavity 7; the water outlet pipe 13 is communicated with the telescopic sleeve 21 and the liquid return cavity 10; the air inlet pipe 14 is communicated with the telescopic sleeve 21 and the air storage cavity 8; the air outlet pipe 15 is communicated with the telescopic sleeve 21 and the air return cavity 11.
The working principle of the embodiment is as follows: before testing, the cover 1 is removed and the heart valve is mounted on the heart valve mounting hole. The installation component 6 is operated, the screw rod 18 rotates through the rotary knob 19, the installation plate 16 and the installation ring 20 move up and down, the telescopic sleeve 21 synchronously stretches and retracts to adjust the height of the heart valve, the distance between the heart valve and the pressure intensity adjusting piece 3 is further changed, and the pressure effect is accurately controlled. And starting the water inlet pipe 12 and the water outlet pipe 13, opening and closing the heart valve along with the change of pressure, enabling water flow to flow out of the liquid storage cavity 7, move to the position above the heart valve and then flow back to the liquid cavity 10, and testing the fatigue test of the heart valve on liquid impact. And then starting the air inlet pipe 14 and the air outlet pipe 15, opening and closing the heart valve along with the change of pressure, enabling the air to flow out of the air storage cavity 8, moving to the position above the heart valve, and then flowing back to the air return cavity 11, and testing the fatigue test of the heart valve on the impact of the air. The device has the advantages of compact structure, multiple functions, simple operation, energy conservation and environmental protection, and realizes the circulation and repeated testing of liquid and gas.
Example two
As shown in fig. 1-3, the present invention provides a heart valve testing device, which comprises a cover 1, a testing cylinder 2, a pressure regulator 3, a storage box 4, a mounting assembly 6 and a filter screen 9; the cover 1 is detachably arranged on the test cylinder 2; the pressure adjusting piece 3 is arranged on the cover 1 and acts on the testing cylinder 2; the inside of the testing cylinder 2 is provided with an installation component 6, and the bottom of the testing cylinder extends into the storage box 4; the storage tank 4 is partitioned into a liquid storage chamber and a gas storage chamber; the filter screen 9 is arranged in the liquid storage chamber and the air storage chamber, divides the liquid storage chamber into a liquid storage cavity 7 and a liquid return cavity 10, and divides the air storage chamber into a gas storage cavity 8 and a gas return cavity 11; the liquid storage cavity 7, the liquid return cavity 10, the gas storage cavity 8 and the gas return cavity 11 are respectively communicated with the mounting assembly 6.
As shown in fig. 4, the mounting assembly 6 includes a mounting plate 16, a limiting seat 17, a lead screw 18, a knob 19, a mounting ring 20 and a telescopic sleeve 21; the limiting seat 17 is arranged on the inner wall of the test cylinder 2; the screw rod 18 is rotatably arranged on the limiting seat 17, and the upper end part of the screw rod is connected with a knob 19; the mounting plate 16 is in threaded fit with the lead screw 18, moves up and down in the test cylinder 2 and is provided with a heart valve mounting hole; the mounting ring 20 is arranged at the bottom of the mounting plate 16 and covers the heart valve mounting hole; the upper end of the telescopic sleeve 21 is communicated with the heart valve mounting hole through the mounting ring 20, and the lower end is connected with the bottom of the testing cylinder 2; a water inlet pipe 12, a water outlet pipe 13, an air inlet pipe 14 and an air outlet pipe 15 are arranged in the testing cylinder 2; the water inlet pipe 12 is communicated with the telescopic sleeve 21 and the liquid storage cavity 7; the water outlet pipe 13 is communicated with the telescopic sleeve 21 and the liquid return cavity 10; the air inlet pipe 14 is communicated with the telescopic sleeve 21 and the air storage cavity 8; the air outlet pipe 15 is communicated with the telescopic sleeve 21 and the air return cavity 11.
Furthermore, a first check valve with opposite flow control directions is arranged on the water inlet pipe 12 and the water outlet pipe 13. And the air inlet pipe 14 and the air outlet pipe 15 are provided with a second one-way valve with opposite flow control directions. And backflow is avoided, and the moving track of liquid and gas is controlled.
Further, the mounting plate 16 is slidably connected to the inner wall of the test cartridge 2. The up-and-down movement is smooth, and the moving track of the heart valve is stable.
Further, the storage tank 4 is provided with a ventilation/liquid pipe 5 communicated with the liquid storage cavity 7, the liquid return cavity 10, the gas storage cavity 8 and the gas return cavity 11. The cleaning, the emptying and the liquid/gas inlet are convenient.
EXAMPLE III
As shown in fig. 1-3, the present invention provides a heart valve testing device, which comprises a cover 1, a testing cylinder 2, a pressure regulator 3, a storage box 4, a mounting assembly 6 and a filter screen 9; the cover 1 is detachably arranged on the test cylinder 2; the pressure adjusting piece 3 is arranged on the cover 1 and acts on the testing cylinder 2; the mounting assembly 6 is arranged in the test cylinder 2, and the bottom of the mounting assembly extends into the storage box 4; the storage tank 4 is partitioned into a liquid storage chamber and a gas storage chamber; the filter screen 9 is arranged in the liquid storage chamber and the air storage chamber, divides the liquid storage chamber into a liquid storage cavity 7 and a liquid return cavity 10, and divides the air storage chamber into a gas storage cavity 8 and a gas return cavity 11; the liquid storage cavity 7, the liquid return cavity 10, the gas storage cavity 8 and the gas return cavity 11 are respectively communicated with the mounting component 6.
As shown in fig. 4, the mounting assembly 6 includes a mounting plate 16, a limiting seat 17, a lead screw 18, a knob 19, a mounting ring 20 and a telescopic sleeve 21; the limiting seat 17 is arranged on the inner wall of the test cylinder 2; the screw rod 18 is rotatably arranged on the limiting seat 17, and the upper end part of the screw rod is connected with a knob 19; the mounting plate 16 is in threaded fit with the lead screw 18, moves up and down in the test cylinder 2 and is provided with a heart valve mounting hole; the mounting ring 20 is arranged at the bottom of the mounting plate 16 and covers the heart valve mounting hole; the upper end of the telescopic sleeve 21 is communicated with the heart valve mounting hole through the mounting ring 20, and the lower end is connected with the bottom of the testing cylinder 2; a water inlet pipe 12, a water outlet pipe 13, an air inlet pipe 14 and an air outlet pipe 15 are arranged in the testing cylinder 2; the water inlet pipe 12 is communicated with the telescopic sleeve 21 and the liquid storage cavity 7; the water outlet pipe 13 is communicated with the telescopic sleeve 21 and the liquid return cavity 10; the air inlet pipe 14 is communicated with the telescopic sleeve 21 and the air storage cavity 8; the air outlet pipe 15 is communicated with the telescopic sleeve 21 and the air return cavity 11.
Furthermore, a first check valve with opposite flow control directions is arranged on the water inlet pipe 12 and the water outlet pipe 13. And the air inlet pipe 14 and the air outlet pipe 15 are provided with a second one-way valve with opposite flow control directions.
Further, the mounting plate 16 is slidably connected to the inner wall of the test cartridge 2.
Further, the storage box 4 is provided with a ventilation/liquid pipe 5 communicated with the liquid storage cavity 7, the liquid return cavity 10, the gas storage cavity 8 and the gas return cavity 11.
Further, a partition plate 22 is arranged on the cover 1; the lower part of the clapboard 22 is provided with internal threads; the test cylinder 2 is provided with an external thread matched with the cover 1. Through lid 1 and the 2 screw-thread fits of test section of thick bamboo, the installation, dismantle conveniently, be convenient for to the maintenance of the interior equipment of test section of thick bamboo 2, clean.
Further, the pressure adjusting member 3 includes a cylinder 23 and a piston plate 24; the cylinder 23 is disposed on the partition 22, and the rod end thereof extends out of the partition 22 and is connected to the piston plate 24. The piston plate 24 moves up and down to adjust the pressure change in the test cylinder 2, so that liquid/gas can enter and exit to impact the heart valve. The partition plate 22 is provided with a seal bearing at a position where it contacts the piston rod of the cylinder 23. The liquid and gas leakage is avoided, and the test effect is influenced. The piston plate 24 is circular and has a diameter that matches the inside diameter of the test cartridge 2.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.
Claims (9)
1. The heart valve testing device is characterized by comprising a cover (1), a testing cylinder (2), a pressure regulating part (3), a storage box (4), a mounting assembly (6) and a filter screen (9); the cover (1) is detachably arranged on the test cylinder (2); the pressure regulating part (3) is arranged on the cover (1) and acts on the testing cylinder (2); the testing cylinder (2) is internally provided with an installation component (6), and the bottom of the testing cylinder extends into the storage box (4); the storage tank (4) is divided into a liquid storage chamber and a gas storage chamber; the filter screen (9) is arranged in the liquid storage chamber and the air storage chamber, divides the liquid storage chamber into a liquid storage cavity (7) and a liquid return cavity (10), and divides the air storage chamber into a gas storage cavity (8) and a gas return cavity (11); the liquid storage cavity (7), the liquid return cavity (10), the gas storage cavity (8) and the gas return cavity (11) are respectively communicated with the mounting assembly (6);
the mounting assembly (6) comprises a mounting plate (16), a limiting seat (17), a screw rod (18), a knob (19), a mounting ring (20) and a telescopic sleeve (21); the limiting seat (17) is arranged on the inner wall of the testing cylinder (2); the screw rod (18) is rotatably arranged on the limiting seat (17), and the end part of the upper end of the screw rod is connected with a knob (19); the mounting plate (16) is in threaded fit with the lead screw (18), moves up and down in the test cylinder (2), and is provided with a heart valve mounting hole; the mounting ring (20) is arranged at the bottom of the mounting plate (16) and covers the heart valve mounting hole; the upper end of the telescopic sleeve (21) is communicated with the heart valve mounting hole through a mounting ring (20), and the lower end is connected with the bottom of the testing cylinder (2); a water inlet pipe (12), a water outlet pipe (13), an air inlet pipe (14) and an air outlet pipe (15) are arranged in the testing cylinder (2); the water inlet pipe (12) is communicated with the telescopic sleeve (21) and the liquid storage cavity (7); the water outlet pipe (13) is communicated with the telescopic sleeve (21) and the liquid return cavity (10); the air inlet pipe (14) is communicated with the telescopic sleeve (21) and the air storage cavity (8); the air outlet pipe (15) is communicated with the telescopic sleeve (21) and the air return cavity (11).
2. A heart valve testing device according to claim 1, characterized in that the inlet pipe (12) and the outlet pipe (13) are provided with one-way valves one of which controls the flow in opposite directions.
3. A heart valve testing device according to claim 1, characterized in that the inlet pipe (14) and the outlet pipe (15) are provided with a second one-way valve with opposite flow control directions.
4. A heart valve testing device according to claim 1, characterized in that the mounting plate (16) is slidably connected to the inner wall of the testing cartridge (2).
5. A heart valve testing device according to claim 1, characterized in that the storage tank (4) is provided with a ventilation/liquid pipe (5) communicating with the liquid storage chamber (7), the liquid return chamber (10), the gas storage chamber (8) and the air return chamber (11).
6. A heart valve testing device according to claim 1, characterized in that the cover (1) is provided with a partition (22); the lower part of the clapboard (22) is provided with internal threads; the testing cylinder (2) is provided with an external thread matched with the cover (1).
7. A heart valve testing device according to claim 6, characterized in that the pressure regulating member (3) comprises a cylinder (23) and a piston plate (24); the cylinder (23) is arranged on the partition plate (22), and the piston rod end of the cylinder extends out of the partition plate (22) and is connected with the piston plate (24).
8. A heart valve testing device according to claim 7, characterized in that a sealing bearing is arranged at the contact position of the partition plate (22) and the piston rod of the cylinder (23).
9. A heart valve testing device according to claim 7, characterized in that the piston plate (24) is circular with a diameter that matches the inner diameter of the testing cartridge (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220492220.0U CN218773977U (en) | 2022-03-07 | 2022-03-07 | Heart valve testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220492220.0U CN218773977U (en) | 2022-03-07 | 2022-03-07 | Heart valve testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218773977U true CN218773977U (en) | 2023-03-31 |
Family
ID=85708177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220492220.0U Active CN218773977U (en) | 2022-03-07 | 2022-03-07 | Heart valve testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218773977U (en) |
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2022
- 2022-03-07 CN CN202220492220.0U patent/CN218773977U/en active Active
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