Heart valve function test equipment
By designing the heart valve functional testing equipment, using the extrusion device to simulate the heart blood flow and the pumping water circulating the pumping device, the problems of low testing efficiency and inaccurate results in the prior art are solved, efficient and accurate fully automatic testing is achieved, and resources are saved.
Patent Information
- Application Number
- CN202411586722.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-03-14
AI Technical Summary
The lack of specialized equipment in artificial heart valve functional testing has led to inefficient testing and inaccurate results, especially when testing service life is wasted a lot of time and manpower.
A heart valve functional testing device is designed, including a stent, a fixing plate, a test device and a water pumping device. The test device simulates the blood flow in the heart through the extrusion device, and the pumping device circulates the water to simulate the blood flow, forming a closed circuit to reuse the water flow.
The device can replace traditional manual testing, significantly improve testing efficiency and improve the accuracy of test results, realize fully automatic testing and counting, save time and manpower, and avoid waste of water resources.
Smart Images
Figure CN119618590A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical equipment, and in particular to a heart valve function testing device. Background Art
[0002] Functional testing of artificial heart valves is mainly divided into in vitro hemodynamic performance tests, including pulsatile flow tests, steady-state flow tests and durability tests; the pulsatile flow test simulates the operating environment of the valve in the natural heart and is considered to be the "gold standard" for evaluating the hemodynamic performance of artificial heart valves; this test can simulate the pulsating blood flow field of the human body under different physiological and pathological conditions, including different age groups, heart rate, blood flow and blood pressure; the steady-state flow test and durability test respectively evaluate the performance of the valve in stable blood flow and long-term use.
[0003] However, in the existing process of testing the function of artificial heart valves, there is usually no specific equipment to test them. The pulsating flow of the artificial heart valves is tested manually. This method usually reduces the efficiency of heart valve testing and also leads to inaccurate test results. A lot of time and manpower are wasted when spot-checking the service life of heart valves.
[0004] Therefore, the present invention provides a heart valve function testing device to solve the above problems. Summary of the invention
[0005] The technical problem to be solved by the present invention is as follows: In the existing process of testing the function of artificial heart valves, there is usually no specific equipment to test them, and the pulsating flow of the artificial heart valves is tested through manual operation. This method usually reduces the testing efficiency of the heart valves and also leads to inaccurate test results. A lot of time and manpower will be wasted when spot-checking the service life of the heart valves.
[0006] The present invention provides the following technical solutions: a heart valve function test device, comprising a bracket, a fixing plate, the bracket being fixed, and the fixing plate being installed on the bracket; further comprising a test device and a water pumping device, the test device being installed on the bracket, the test device being used to cooperate with the water pumping device to test the function and life of the heart valve; the water pumping device being installed on one side of the test device, the water pumping device being used to circulate water into the test device to simulate the blood flow of the heart, thereby completing the test of the heart valve function; By setting up a test device, ordinary water flow is simulated as blood pumped by the beating heart through an extrusion device, so that it can be opened or closed with the flow of water, thereby completing the test. This method can replace traditional manual testing, thereby greatly improving the test efficiency, and will also make the test results more accurate. When spot-checking the service life of heart valves, fully automatic testing and counting can be achieved, thereby saving a lot of time and manpower; at the same time, water is pumped into the test device through a water pumping device to simulate the blood flow of the heart, thereby completing the test of the heart valve function. At the same time, a closed loop is formed by the test device, the water tank and the water pipe, thereby realizing the reuse of the water flow, improving the test efficiency and avoiding the waste of water resources.
[0007] Preferably, the test device comprises a test lower cover, a glass cover, a test upper cover and a squeezing device, wherein the test lower cover is mounted on one side of the bracket and is used to fix the glass cover; a glass cover is mounted on the test lower cover and is used to hold the heart valve and display the working process of the heart valve; a test upper cover is mounted on the upper end of the glass cover and is used to hold the squeezing device; a squeezing device is mounted inside the test upper cover; the squeezing device is used to squeeze the water storage airbag to simulate the blood flow of the heart and complete the test of the heart valve function; By setting up a test device, ordinary water flow is simulated as blood pumped by the heartbeat through an extrusion device, so that it can be opened or closed with the flow of water, thereby completing the test. This method can replace traditional manual testing, thereby greatly improving the test efficiency, and at the same time making the test results more accurate. When spot-checking the service life of heart valves, fully automatic testing and counting can be achieved, thereby saving a lot of time and manpower.
[0008] Preferably, the squeezing device comprises a water storage airbag, a squeezing motor, a telescopic rod and a squeezing sheet. The water storage airbag is installed inside the test upper cover and is used to store water. The squeezing motor is symmetrically installed on one side of the test upper cover and is used to supply power to the telescopic rod. The output end of the squeezing motor is installed with a telescopic rod, and the telescopic rod is extended to drive the squeezing sheet to move. The squeezing sheet is installed at one end of the telescopic rod, and the squeezing sheet moves to squeeze the water storage airbag. During operation, the water pump device first fills the water in the water storage airbag. After the water in the water storage airbag is full, the squeezing motor is started, and the squeezing motor starts to drive the telescopic rod to extend. The extended telescopic rod drives the squeezing block to squeeze inward, thereby squeezing the water in the water storage airbag. After the two squeezing blocks move to the limit position, the squeezing motor controls the telescopic rod to retract, and the retracted telescopic rod drives the squeezer to retract and release the squeezing of the water storage airbag, and this cycle is repeated.
[0009] Preferably, an annular rubber pad is installed in the middle of the glass cover, and the annular rubber pad is used to fix the heart valve so that the test can be completed better.
[0010] Preferably, the annular rubber pad and the inside of the glass cover are waterproof and sealed to prevent water from flowing out of the surrounding connections, thereby preventing water from flowing out of the surrounding connections and affecting the test results.
[0011] Preferably, the glass cover is provided with a thread at the upper end, and the test cover is provided with a corresponding thread inside. The threaded connection is adopted because the structure of the threaded connection is relatively simple, easy to manufacture and install, and the threaded connection allows multiple disassembly and reassembly, which is very useful when maintenance or replacement of parts is required, and the threaded connection has a self-locking property, that is, when subjected to axial force, the friction between the threads can prevent the connection from loosening; the test cover is detachably connected to the glass cover; detachably installing the test cover in the glass cover is used to more conveniently place the heart valve.
[0012] Preferably, the water pumping device comprises a water tank, a water pipe, a water pump and a recovery pipe. The water tank is installed on the bracket and is used to store water. A water pipe is installed above the water tank and is used to transport water to the inside of the water storage airbag. The water pump is installed at the upper end of the water tank and is connected to the water pipe. The water pump is used to pump water to the inside of the water storage airbag. A recovery pipe is installed on the test lower cover and is used to recover water. The water pump pumps water into the water storage bag through the water supply pipe, and then recovers the water to the water tank through the recovery pipe after testing. The water is pumped into the test device in a cycle to simulate the blood flow in the heart, thereby completing the test of the heart valve function. At the same time, a closed loop is formed by the test device, the water tank and the water pipe, thereby realizing the reuse of the water flow, improving the test efficiency and avoiding the waste of water resources.
[0013] Preferably, the water delivery pipe is connected with the water storage airbag and the water storage airbag is made of rubber material. The water delivery pipe is connected with the water storage airbag for delivering water into the water storage airbag; the water delivery airbag is made of rubber material to increase its service life.
[0014] Preferably, a flow meter is provided outside the recovery tube, and the flow meter is used to detect the flow in the recovery tube, thereby determining whether the heart valve is working normally.
[0015] The beneficial effects of the present invention are as follows: The present invention sets up a test device, and uses an extrusion device to simulate ordinary water flow as blood pumped by the beating heart, so that it can be opened or closed with the flow of water, thereby completing the test. This method can replace traditional manual testing, thereby greatly improving the test efficiency, and at the same time making the test results more accurate. When spot-checking the service life of the heart valve, fully automatic testing and counting can be achieved, thereby saving a lot of time and manpower.
[0016] The present invention provides a water pumping device to circulate water into the test device to simulate the blood flow of the heart, thereby completing the test of the heart valve function. At the same time, a closed loop is formed by the test device, the water tank and the water pipe, thereby realizing the reuse of the water flow, improving the test efficiency and avoiding the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is a schematic diagram of the testing device of the present invention; Figure 3 It is a schematic diagram of the extrusion device of the present invention; Figure 4 This is a schematic diagram of the interior of the glass cover of the present invention; Figure 5 It is a schematic diagram of the thread installation position of the present invention; Figure 6 It is a schematic diagram of a water pumping device of the present invention.
[0019] In the figure: 1. bracket; 2. fixing plate; 3. testing device; 31. testing lower cover; 32. glass cover; 321. annular rubber pad; 322. thread; 33. testing upper cover; 34. squeezing device; 341. water storage air bag; 342. squeezing motor; 343. telescopic rod; 344. squeezing sheet; 4. water pumping device; 41. water storage tank; 42. water pipe; 43. water pump; 44. recovery pipe; 441. flow meter. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. Such terms are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.
[0023] It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0024] The disclosed embodiments are intended to solve the problem that in the existing process of testing the function of artificial heart valves, there is usually no specific equipment to test them, and the pulsating flow of the artificial heart valves is tested through manual operation. This method usually reduces the efficiency of heart valve testing and also leads to inaccurate test results, wasting a lot of time and manpower when spot-checking the service life of the heart valves. In view of this, the disclosed embodiment proposes a heart valve function testing device, by setting up a test device, and simulating ordinary water flow as blood pumped by the beating heart through an extrusion device, so that it can be opened or closed with the flow of water, thereby completing the test. This method can replace the traditional manual test, thereby greatly improving the test success rate, and at the same time making the test results more accurate. When spot checking the service life of the heart valve, full-automatic testing and counting can be achieved, thereby saving a lot of time and manpower; at the same time, water is pumped into the test device through a water pumping device to simulate the blood flow of the heart, thereby completing the test of the heart valve function. At the same time, a closed loop is formed by the test device, the water storage tank and the water pipe, thereby realizing the reuse of the water flow, improving the test efficiency and avoiding the waste of water resources.
[0025] like Figures 1 to 6 As shown, a heart valve function test device includes a bracket 1 and a fixing plate 2, wherein the bracket 1 is fixed and the fixing plate 2 is installed on the bracket 1; it also includes a test device 3 and a water pumping device 4, wherein the test device 3 is installed on the bracket 1, and the test device 3 is used to cooperate with the water pumping device 4 to test the function and life of the heart valve; the water pumping device 4 is installed on one side of the test device 3, and the water pumping device 4 is used to circulate water into the test device 3 to simulate the blood flow of the heart, thereby completing the test of the heart valve function.
[0026] By setting up the test device 3, the ordinary water flow is simulated as the blood pumped by the heart beating through the squeezing device 34, so that it can be opened or closed with the flow of water, thereby completing the test. This method can replace the traditional manual test, thereby greatly improving the test efficiency, and at the same time, it will make the test results more accurate. When the heart valve is spot-checked to test its service life, full-automatic testing and counting can be achieved, thereby saving a lot of time and manpower; at the same time, the water pumping device 4 circulates water into the test device 3 to simulate the blood flow of the heart, thereby completing the test of the heart valve function. At the same time, a closed loop is formed by the test device 3, the water storage tank 41 and the water pipe, thereby realizing the reuse of the water flow, improving the test efficiency and avoiding the waste of water resources.
[0027] like Figures 1 to 5As shown, the test device 3 includes a test lower cover 31, a glass cover 32, a test upper cover 33 and a squeezing device 34. The test lower cover 31 is installed on one side of the bracket 1, and the test lower cover 31 is used to fix the glass cover 32; the test lower cover 31 is installed with a glass cover 32, and the glass cover 32 is used to hold the heart valve and display the working process of the heart valve; the upper end of the glass cover 32 is installed with a test upper cover 33, and the test upper cover 33 is used to hold the squeezing device 34; the squeezing device 34 is installed in the test upper cover 33; the squeezing device 34 is used to squeeze the water storage airbag 341 to simulate the blood flow of the heart, so as to complete the test of the heart valve function; When working, the staff first opens the test cover 33, puts the heart valve in the glass cover 32, and then fixes the test cover 33 on the glass cover 32. At this time, the water pumping device 4 starts to pump water and stores the water in the squeezing device 34. After the water in the squeezing device 34 is full, the squeezing device 34 simulates the flow of heart blood by squeezing, and then the water flows through the heart valve, and the heart valve opens to make it flow into the water pumping device 4; By setting up the test device 3, ordinary water flow is simulated as blood pumped by the heart beating through the squeezing device 34, so that it can be opened or closed with the flow of water, thereby completing the test. This method can replace the traditional manual test, thereby greatly improving the test efficiency, and at the same time making the test results more accurate. When spot-checking the service life of the heart valve, full-automatic testing and counting can be achieved, thereby saving a lot of time and manpower.
[0028] like Figure 3 As shown, the squeezing device 34 includes a water storage airbag 341, a squeezing motor 342, a telescopic rod 343 and a squeezing sheet 344. The water storage airbag 341 is installed inside the test upper cover 33, and the water storage airbag 341 is used to store water; the squeezing motor 342 is symmetrically installed on one side of the test upper cover 33, and the squeezing motor 342 is used to power the telescopic rod 343; the output end of the squeezing motor 342 is installed with a telescopic rod 343, and the telescopic rod 343 is telescoped to drive the squeezing sheet 344 to move; the squeezing sheet 344 is installed at one end of the telescopic rod 343, and the squeezing sheet 344 moves to squeeze the water storage airbag 341; During operation, the water pumping device 4 first fills the water in the water storage airbag 341. After the water in the water storage airbag 341 is full, the squeezing motor 342 is started. The squeezing motor 342 starts to drive the telescopic rod 343 to extend. The extended telescopic rod 343 drives the squeezing block to squeeze inward, thereby squeezing the water in the water storage airbag 341. After the two squeezing blocks move to the extreme position, the squeezing motor 342 controls the telescopic rod 343 to retract. The retracted telescopic rod 343 drives the squeezer to retract and release the squeezing of the water storage airbag 341, and this cycle is repeated.
[0029] like Figure 4 As shown, an annular rubber pad 321 is installed in the middle of the glass cover 32, and the annular rubber pad 321 is used to fix the heart valve so that the test can be completed better.
[0030] like Figure 4 As shown, the annular rubber pad 321 and the inside of the glass cover 32 are waterproof and sealed. The waterproof and sealing treatment is used to prevent water from flowing through the open heart valve only and not flowing out from the surrounding connections. This method is used to prevent water from flowing out from the surrounding connections and affecting the test results.
[0031] like Figure 5 As shown, the glass cover 32 is provided with a thread 322 at the upper end, and the test cover 33 is provided with a corresponding thread 322 inside. The thread 322 connection is adopted because the structure of the thread 322 connection is relatively simple, easy to manufacture and install, and the thread 322 connection allows multiple disassembly and reassembly, which is very useful when maintenance or replacement of parts is required, and the thread 322 connection has a self-locking property, that is, when subjected to axial force, the friction between the threads 322 can prevent the connection from loosening; the test cover 33 is detachably connected to the glass cover 32; the test cover 33 is detachably installed in the glass cover 32 for more convenient placement of the heart valve.
[0032] like Figure 6 As shown, the water pumping device 4 includes a water tank 41, a water pipe 42, a water pump 43 and a recovery pipe 44. The water tank 41 is installed on the bracket 1, and the water tank 41 is used to store water; a water pipe 42 is installed above the water tank 41, and the water pipe 42 is used to transport the water to the inside of the water storage airbag 341; the water pump 43 is installed at the upper end of the water tank 41 and is connected to the water pipe 42, and the water pump 43 is used to pump water to the inside of the water storage airbag 341; a recovery pipe 44 is installed on the test lower cover 31, and the recovery pipe 44 is used to recover the water; The water pump 43 pumps water through the water pipe 42 to the inside of the water storage airbag 341, and then recovers the water to the water tank 41 through the recovery pipe 44 after testing. By circulating water into the test device 3, the blood flow in the heart is simulated to complete the test of the heart valve function. At the same time, a closed loop is formed by the test device 3, the water tank 41 and the water pipe, so that the water flow can be reused, which improves the test efficiency and avoids the waste of water resources.
[0033] like Figure 4 As shown, the water delivery pipe 42 is connected to the water storage airbag 341 and the water storage airbag 341 is made of rubber material. The water delivery pipe 42 is connected to the water storage airbag 341 and is used to deliver water to the water storage airbag 341; the water delivery airbag is made of rubber material to increase its service life.
[0034] like Figure 6 As shown, a flow meter 441 is disposed outside the recovery tube 44 , and the flow meter 441 is used to detect the flow in the recovery tube 44 , thereby determining whether the heart valve is working normally.
[0035] The overall working process is as follows: the staff first opens the test cover 33, places the heart valve in the glass cover 32, and then fixes the test cover 33 on the glass cover 32. At this time, the water pumping device 4 starts to pump water and stores the water in the squeezing device 34. The water pump 43 pumps the water flow through the water pipe 42 to the inside of the water storage airbag 341. First, the water pumping device 4 fills the water in the water storage airbag 341. After the water in the water storage airbag 341 is full, the squeezing motor 342 is started. The squeezing motor 342 starts to drive the stretching device 341. The retractable rod 343 is extended, and the extended telescopic rod 343 drives the squeezing block to squeeze inward, thereby squeezing out the water in the water storage airbag 341. After the two squeezing blocks move to the limit position, the squeezing motor 342 controls the telescopic rod 343 to retract, and the retracted telescopic rod 343 drives the squeezing block to retract and then releases the squeezing of the water storage airbag 341. This cycle is repeated, and then the water flows through the heart valve, and the heart valve opens to allow it to flow into the water pumping device 4. During this period, the flow meter 441 is used to detect whether the working data of the heart valve is normal.
[0036] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, which are within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A heart valve function test device, comprising a bracket (1) and a fixing plate (2), wherein the bracket (1) is fixed and the fixing plate (2) is mounted on the bracket (1); characterized in that: It also includes a testing device (3) and a water pumping device (4), wherein the testing device (3) is mounted on the support (1), and the testing device (3) is used to cooperate with the water pumping device (4) to test the function and life of the heart valve; the water pumping device (4) is mounted on one side of the testing device (3), and the water pumping device (4) is used to circulate water into the testing device (3) to simulate the blood flow of the heart, thereby completing the test of the heart valve function.
2. A heart valve function testing device according to claim 1, characterized in that: The testing device (3) comprises a testing lower cover (31), a glass cover (32), a testing upper cover (33) and a squeezing device (34); the testing lower cover (31) is mounted on one side of the bracket (1); the testing lower cover (31) is mounted with a glass cover (32); the testing upper cover (33) is mounted on the upper end of the glass cover (32); and the squeezing device (34) is mounted inside the testing upper cover (33).
3. A heart valve function testing device according to claim 2, characterized in that: The squeezing device (34) comprises a water storage air bag (341), a squeezing motor (342), a telescopic rod (343) and a squeezing sheet (344); the water storage air bag (341) is mounted inside the test upper cover (33); the squeezing motor (342) is symmetrically mounted on one side of the test upper cover (33); the output end of the squeezing motor (342) is mounted with a telescopic rod (343); and one end of the telescopic rod (343) is mounted with a squeezing sheet (344).
4. A heart valve function testing device according to claim 3, characterized in that: An annular rubber pad (321) is installed in the middle of the glass cover (32).
5. A heart valve function testing device according to claim 4, characterized in that: The annular rubber pad (321) and the interior of the glass cover (32) are waterproof and sealed.
6. A heart valve function testing device according to claim 5, characterized in that: The upper end of the glass cover (32) is provided with a thread (322), and the interior of the test upper cover (33) is provided with a thread (322) corresponding thereto, and the test upper cover (33) is detachably connected to the inside of the glass cover (32).
7. A heart valve function testing device according to claim 6, characterized in that: The water pump device (4) comprises a water storage tank (41), a water delivery pipe (42), a water pump (43) and a recovery pipe (44); the water storage tank (41) is mounted on the bracket (1); a water delivery pipe (42) is mounted above the water storage tank (41); the water pump (43) is mounted on the upper end of the water storage tank (41) and is connected to the water delivery pipe (42); and a recovery pipe (44) is mounted on the test lower cover (31).
8. A heart valve function testing device according to claim 7, characterized in that: The water delivery pipe (42) is in communication with the water storage air bag (341), and the water storage air bag (341) is made of rubber material.
9. A heart valve function testing device according to claim 8, characterized in that: A flow meter (441) is provided outside the recovery pipe (44).