A simulated heart beat test device

Abstract

The present invention relates to a simulated heart beat test device, belonging to the technical field of test devices. The test device comprises a top plate, a bottom plate, and two side plates. The top plate is connected to a working plate, on which a tray for a prosthetic heart is mounted. The bottom plate is mounted to a fixed plate and a first motor, on which an eccentric wheel is mounted. The fixed plate is connected to a transition plate, inside which a first bearing that cooperates with the eccentric wheel is mounted. The top of the transition plate is connected to a top shaft, on which a first slider is connected. The first slider is mounted on a linear slide rail, which is mounted on the bottom of the working plate. A screw is mounted between the two side plates, on which a second slider is slidably connected. The screw passes through the side plates and is mounted with a driven wheel. A second motor is mounted on the outside of the side plates. A driving wheel is mounted on the output end of the second motor, and a synchronous belt is connected between the driving wheel and the driven wheel. The present invention simulates the rhythm of the heart's up and down beats through the motor, thereby making the prosthetic heart a teaching test tool.

Description

Technical Field

[0001] The invention relates to a simulated heart beat test device, belonging to the technical field of test devices. Background Art

[0002] Most existing technologies use living hearts as teaching experimental tools. However, due to the strict requirements on the variety, health and quarantine status of living hearts during teaching experiments, the living hearts are large in size, inconvenient to transport and store, and the life-support system consumes a lot of energy during living heart surgery. Therefore, the cost of using living hearts is high, and there is also the problem of inconvenience in performing experiments on living hearts.

[0003] The information disclosed in this background section is only intended to enhance understanding of the overall background of the invention and should not be considered as an admission or any form of suggestion that the information constitutes the prior art already known to a person of ordinary skill in the art. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a simulated heart beat test device to solve the problems in the related art of high cost of using a living heart and inconvenience in surgical experiments.

[0005] In order to solve the above technical problems, the present invention is implemented by adopting the following technical solutions:

[0006] The present invention provides a simulated heart beat test device, comprising a top plate and a bottom plate, two side plates being connected between the top plate and the bottom plate, four linear bearings being mounted on the top plate, guide shafts penetrating the top plate being mounted inside the four linear bearings, a working plate being connected to one end of the guide shafts away from the top plate, a tray being mounted on the working plate, and a prosthetic heart being placed in the tray;

[0007] A support base and a fixed plate are installed on the bottom plate, a first motor is installed on the support base, an eccentric wheel is installed on the first motor, a transition plate is connected to the fixed plate, and a first bearing that cooperates with the eccentric wheel is installed inside the transition plate;

[0008] The top of the transition plate is connected to a bearing fixing block, the top of the bearing fixing block is connected to a top shaft, the top shaft is connected to a first slider, the first slider is mounted on the linear slide rail, and the linear slide rail is mounted on the bottom of the working plate;

[0009] A screw rod is installed between the two side plates, and the screw rod is connected to a second slider installed on the outside of the top shaft. The output end of the screw rod passes through one side plate and is installed with a driven wheel. A second motor is installed on the outside of the side plate through four mounting shafts, and a driving wheel is installed at the output end of the second motor. A synchronous belt is connected between the driving wheel and the driven wheel.

[0010] Furthermore, a sensor sheet is installed on the eccentric wheel, and a first sensor matched with the sensor sheet is installed on the bottom plate.

[0011] Furthermore, two pins are installed on both sides of the fixing plate, and a second bearing connected to the two pins is installed at the front end of the transition plate.

[0012] Furthermore, a third bearing is installed at the bottom of the bearing fixing block, and the third bearing is cooperatively connected with the transition plate.

[0013] Furthermore, a sensing plate is installed at the bottom of the second sliding block, and second sensors that cooperate with the sensing plate are respectively installed on the two side plates.

[0014] Furthermore, a spring is installed between the second sliding block and the bearing fixing block.

[0015] Furthermore, two connecting shafts are installed between the two side plates, and the two connecting shafts are slidably connected to the second sliding block.

[0016] Furthermore, the contact surfaces of the screw rod and the two side plates are both installed with copper sleeves, and the top of the second sliding block is installed with a graphite copper sleeve.

[0017] Furthermore, two slide rail blocks are installed at both ends of the bottom of the working plate.

[0018] Furthermore, a connecting plate is installed at the bottom of the first sliding block, and a top shaft is installed below the connecting plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention uses a first motor to drive the tray to move up and down to simulate the frequency of the heart beat, and uses a second motor to drive the top shaft to move left and right to adjust the amplitude of the heart beat, so that a prosthetic heart can replace a living heart as the object of surgical teaching experiments, saving the costs of purchase, transportation, and storage, making surgical teaching experiments more convenient, and reducing the venue for surgical teaching experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of a simulated heart beat test device provided by an embodiment of the present invention;

[0022] In the figure: 1: top plate; 2: bottom plate; 3: side plate; 4: linear bearing; 5: guide shaft; 6: working plate; 7: tray; 8: prosthetic heart; 9: support seat; 10: fixed plate; 11: first motor; 12: eccentric wheel; 13: transition plate; 14: first bearing; 15: bearing fixing block; 16: top shaft; 17: first slider; 18: linear slide rail; 19: screw rod; 20: second slider; 21: driven pulley; 22: mounting shaft; 23: second motor; 24: driving pulley; 25: synchronous belt; 26: induction plate; 27: first sensor; 28: pin shaft; 29: second bearing; 30: third bearing; 31: induction plate; 32: second sensor; 33: spring; 34: connecting shaft; 35: copper sleeve; 36: graphite copper sleeve; 37: slide rail block; 38: connecting plate. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] like Figure 1As shown, this embodiment provides a simulated heart beat test device, including a top plate 1 and a bottom plate 2, with two side plates 3 connected between the top plate 1 and the bottom plate 2, four linear bearings 4 are installed on the top plate 1, and four linear bearings 4 are installed inside with guide shafts 5 passing through the top plate 1, and the ends of the four guide shafts 5 away from the top plate 1 are connected to a working plate 6, and a tray 7 is installed on the working plate 6, and a prosthetic heart 8 is placed in the tray 7.

[0027] Specifically, the tray 7 is guided by four linear bearings 4 and a guide shaft 5 to ensure the stability of the simulated heart beat frequency.

[0028] In this embodiment, a support base 9 and a fixing plate 10 are installed on the base plate 2, a first motor 11 is installed on the support base 9, an eccentric wheel 12 is installed on the first motor 11, an induction plate 26 is installed on the eccentric wheel 12, and a first inductor 27 that cooperates with the induction plate 26 is installed on the base plate 2.

[0029] Specifically, the first sensor 27 is used to detect the maximum bit of the heart beat frequency.

[0030] In this embodiment, a transition plate 13 is connected to the fixed plate 10. Specifically, two pins 28 are installed on both sides of the fixed plate 10. A second bearing 29 connected to the two pins 28 is installed at the front end of the transition plate 13. A first bearing 14 connected to the eccentric wheel 12 is installed inside the transition plate 13.

[0031] In this embodiment, a bearing fixing block 15 is connected to the top of the transition plate 13 . Specifically, a third bearing 30 is installed at the bottom of the bearing fixing block 15 . The third bearing 30 is cooperatively connected to the transition plate 13 .

[0032] In this embodiment, the top of the bearing fixing block 15 is connected to a top shaft 16, and the top shaft 16 is connected to a connecting plate 38. The end of the connecting plate 38 away from the top shaft 16 is equipped with a first slider 17, and the first slider 17 is installed on the linear slide rail 18, and the linear slide rail 18 is installed at the bottom of the working plate 6.

[0033] Specifically, two slide rail blocks 37 are installed at both ends of the bottom of the working plate 6 , and the two slide rail blocks 37 are used to prevent the first sliding block 17 from separating from the linear slide rail 18 .

[0034] In this embodiment, a screw rod 19 is installed between the two side plates 3 , and a second sliding block 20 installed outside the top shaft 16 is threadedly connected to the screw rod 19 .

[0035] Specifically, copper sleeves 35 are installed on the contact surfaces of the screw rod 19 and the two side plates 3 , and a graphite copper sleeve 36 is installed on the top of the slider 17 .

[0036] In this embodiment, a sensing plate 31 is installed at the bottom of the second sliding block 20 , and second sensors 32 cooperating with the sensing plate 31 are respectively installed on the two side plates 3 .

[0037] Specifically, the second sensor 32 on the left is used to detect the minimum position of the amplitude adjustment of the heart beat, and the second sensor 32 on the right is used to detect the maximum position of the amplitude adjustment of the heart beat.

[0038] In this embodiment, a spring 33 is installed between the second slider 20 and the bearing fixing block 15. Specifically, the spring 33 is used to generate a rebound force when the bearing fixing block 15 moves upward, so as to reduce the loss of components caused by vibration.

[0039] In this embodiment, two connecting shafts 34 are further installed between the two side plates 3 , and the two connecting shafts 34 are slidably connected to the second sliding block 20 .

[0040] In this embodiment, the output end of the screw rod 19 passes through a side plate 3 and is installed with a driven wheel 21. A second motor 23 is installed on the outside of the side plate 3 through four mounting shafts 22. A driving wheel 24 is installed at the output end of the second motor 23. A synchronous belt 25 is connected between the driving wheel 24 and the driven wheel 21.

[0041] The working principle of this embodiment is as follows:

[0042] Start the first motor 11 and the second motor 23. The first motor 11 drives the eccentric wheel 12 to rotate. The eccentric wheel 12 is tangent to the first bearing 14 inside the transition plate 13. Since the front end of the transition plate 13 is connected to the fixed plate 10, the eccentric wheel 12 drives the rear end of the transition plate 13 to move up and down. The transition plate 13 drives the bearing fixing block 15 to move up and down. The bearing fixing block 15 drives the top shaft 16 to move up and down. The up and down movement of the top shaft 16 causes the tray 7 holding the prosthetic heart 8 thereon to move up and down, thereby simulating the heart beat frequency.

[0043] At the same time, the second motor 23 drives the driving wheel 24 to rotate, and the driving wheel 24 drives the driven wheel 21 to rotate through the synchronous belt 25. The driven wheel 21 drives the screw rod 19 to rotate. The rotation of the screw rod 19 causes the second slider 20 to move left and right on the connecting shaft 34, thereby driving the top shaft 16 to move left and right. The top shaft 16 drives the bearing fixing block 15 and the first slider 17 to move left and right on the transition plate 13 and the linear slide rail 18 respectively, thereby adjusting the amplitude of the heart beat.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A simulated heart beat test device, characterized in that: The invention comprises a top plate (1) and a bottom plate (2), two side plates (3) are connected between the top plate (1) and the bottom plate (2), four linear bearings (4) are installed on the top plate (1), and guide shafts (5) passing through the top plate (1) are installed inside the four linear bearings (4), and the ends of the four guide shafts (5) away from the top plate (1) are connected to a working plate (6), a tray (7) is installed on the working plate (6), and a prosthetic heart (8) is placed in the tray (7); A support seat (9) and a fixed plate (10) are mounted on the base plate (2); a first motor (11) is mounted on the support seat (9); an eccentric wheel (12) is mounted on the first motor (11); a transition plate (13) is connected to the fixed plate (10); a first bearing (14) is mounted inside the transition plate (13) and is in cooperation with the eccentric wheel (12); The top of the transition plate (13) is connected to a bearing fixing block (15), the top of the bearing fixing block (15) is connected to a top shaft (16), the top shaft (16) is connected to a first slider (17), the first slider (17) is mounted on a linear slide rail (18), and the linear slide rail (18) is mounted on the bottom of the working plate (6); a screw rod (19) is installed between the two side plates (3), the screw rod (19) is connected to a second slider (20) mounted on the outside of the top shaft (16), the output end of the screw rod (19) passes through one side plate (3) and is installed with a driven wheel (21), the outside of the side plate (3) is installed with a second motor (23) through four mounting shafts (22), the output end of the second motor (23) is installed with a driving wheel (24), and a synchronous belt (25) is connected between the driving wheel (24) and the driven wheel (21); The eccentric wheel (12) is provided with a sensing plate (26), and the base plate (2) is provided with a first sensor (27) that matches the sensing plate (26); Two pins (28) are installed on both sides of the fixed plate (10), and a second bearing (29) connected to the two pins (28) is installed at the front end of the transition plate (13); A third bearing (30) is installed at the bottom of the bearing fixing block (15), and the third bearing (30) is cooperatively connected to the transition plate (13).

2. The simulated heart beat test device according to claim 1, characterized in that: A sensing plate (31) is installed at the bottom of the second sliding block (20), and second sensors (32) that cooperate with the sensing plate (31) are respectively installed on the two side plates (3).

3. The simulated heart beat test device according to claim 1, characterized in that: A spring (33) is installed between the second sliding block (20) and the bearing fixing block (15).

4. The simulated heart beat test device according to claim 1, characterized in that: Two connecting shafts (34) are also installed between the two side plates (3), and the two connecting shafts (34) are slidably connected to the second slider (20).

5. The simulated heart beat test device according to claim 1, characterized in that: The contact surfaces of the screw rod (19) and the two side plates (3) are both installed with copper sleeves (35), and the top of the second sliding block (20) is installed with a graphite copper sleeve (36).

6. The simulated heart beat test device according to claim 1, characterized in that: Two slide rail blocks (37) are installed at both ends of the bottom of the working plate (6).

7. The simulated heart beat test device according to claim 1, characterized in that: A connecting plate (38) is installed at the bottom of the first sliding block (17), and a top shaft (16) is installed below the connecting plate (38).

Images