Hand joint rehabilitation tester based on tactile nerve conduction monitoring

By introducing a bidirectional offset component and locking structure into the hand joint rehabilitation tester, the secondary injury problem caused by failure in rehabilitation training was solved, and a safe and stable rehabilitation training effect was achieved.

CN120478937AActive Publication Date: 2025-08-15ARMY MEDICAL UNIV
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Patent Information

Application Number
CN202510907118.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2025-08-15
Estimated Expiration
2045-07-02

AI Technical Summary

Technical Problem

The existing wrist rehabilitation training device can easily cause the wrist to bear huge impact and torsional force when the patient fails to force, and there is a risk of secondary injury.

Method used

A hand joint rehabilitation tester based on tactile nerve conduction monitoring is designed, using a bidirectional offset assembly and locking structure. Through the cooperation of the trigger plate and locking plate, the elastic tensioning structure is quickly locked when the patient loses force, preventing the wrist from moving rapidly inversely.

Benefits of technology

It effectively prevents secondary injuries caused by failure in rehabilitation training, improves the safety and consistency of training, and ensures the stable progress of rehabilitation training.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of hand rehabilitation, in particular to a hand joint rehabilitation tester based on tactile nerve conduction monitoring, which comprises a base provided with a detection device and two groups of symmetrically arranged side frames; the supporting roller is arranged between the two groups of side frames and is used for supporting the wrist of the patient; the elastic tensioning structure is installed between the two sets of side frames, and the elastic tensioning structure can be driven to act when the hands of the patient are lifted upwards; the two-way deviation assembly is arranged in the side frame and connected with the elastic tensioning structure, and a trigger plate and a locking plate which are arranged on the side frame are matched with the two-way deviation assembly, so that when the elastic tensioning structure accelerates to move towards the base, the elastic tensioning structure can be locked, and a patient is prevented from losing force; the secondary injury of the patient is caused.
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Description

Technical Field

[0001] The present invention relates to the technical field of hand rehabilitation, in particular to a hand joint rehabilitation tester based on tactile nerve conduction monitoring. Background Art

[0002] When a patient's wrist is injured, a certain degree of rehabilitation training is required. The use of professional rehabilitation training equipment can effectively prevent the patient from suffering secondary injuries during the rehabilitation training process. Currently, wrist rehabilitation training devices on the market generally adopt a load training mode. The principle is to allow patients to use wrist force to pull springs or counterweights of different masses to exercise wrist muscles and joints and promote functional recovery.

[0003] However, during rehabilitation training, patients may experience temporary loss of strength, which may be caused by fatigue, distraction or sudden changes in injury. When the patient loses strength, the load (spring or counterweight) originally controlled by the patient will move in the opposite direction at a faster speed due to the reverse force. Since the patient's palm is still connected to the load device, the palm will move passively at this time. This passive movement is often sudden and violent. If there are no effective protective measures, the patient's wrist will be subjected to huge impact and torsional forces, making it extremely susceptible to secondary injuries. Summary of the Invention

[0004] The purpose of the present invention is to provide a hand joint rehabilitation tester based on tactile nerve conduction monitoring to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A hand joint rehabilitation tester based on tactile nerve conduction monitoring, comprising: A base, on which a detection device and two sets of symmetrically arranged side frames are provided; a support roller, disposed between the two sets of side frames, for supporting the patient's wrist; An elastic tensioning structure is installed between the two sets of side frames, and the patient's hand can drive the elastic tensioning structure to move; A bidirectional offset assembly is arranged in the side frame and connected to the elastic tensioning structure. A trigger plate and a locking plate arranged on the side frame cooperate with the bidirectional offset assembly to lock the elastic tensioning structure when the elastic tensioning structure accelerates toward the base.

[0006] As a further solution of the present invention: a retardation chamber is formed inside the side frame, and a third sliding groove is provided on the inner wall of the retardation chamber; The elastic tensioning structure includes a second sliding connection portion slidably mounted in the third sliding groove, a pressure roller is rotatably mounted on the second sliding connection portion, and the second sliding connection portion is connected to the outer wall of the side frame via a first cylindrical spring; When the patient's hand is lifted up, the pressure roller can move upward and pull the first cylindrical spring.

[0007] As a further solution of the present invention: the bidirectional offset assembly includes: An energy storage structure and a stop structure are provided on the second sliding connection portion, wherein the stop structure has a first state and a second state that are switched when triggered, and when the stop structure collides with the trigger plate, the stop structure can switch from the first state to the second state; The energy storage structure and the stop structure are connected via a connecting rod.

[0008] As a further solution of the present invention: the energy storage structure includes a telescopic shaft slidably mounted on the second sliding connection portion, a limit ring is formed on the telescopic shaft, and a second cylindrical spring is sleeved on the telescopic shaft, one end of the second cylindrical spring is connected to the limit ring, and the other end is connected to the second sliding connection portion; The lower end portion of the telescopic shaft is rotatably connected to one end of the connecting rod.

[0009] As a further solution of the present invention, the stop structure includes two groups of limiting sleeves symmetrically mounted on the second sliding connection portion, a transverse shaft is slidably mounted between the two groups of limiting sleeves, a reset rod is connected to the transverse shaft, and an annular protrusion is provided in the middle of the transverse shaft, the annular protrusion abuts and fits with the two groups of limiting sleeves; The annular protrusion is rotatably connected to the other end of the connecting rod.

[0010] As a further solution of the present invention: a plurality of groups of protrusions are equidistantly provided on one side of the trigger plate facing the horizontal axis, and the protrusions are adapted to a pulley rotatably mounted at one end of the horizontal axis.

[0011] As a further solution of the present invention: a plurality of locking grooves are equidistantly provided on one end of the locking plate toward the horizontal axis, and a locking portion provided on the other end of the horizontal axis is adapted to the locking grooves.

[0012] As a further solution of the present invention: it also includes: a first chute provided on the inner wall of the side frame, wherein a sheave is rotatably mounted in the first chute, and the sheave is rotatably connected to the support roller; An adjusting structure connecting the side frame and the supporting roller is used to adjust the height of the supporting roller.

[0013] As a further embodiment of the present invention, the adjustment structure includes an abutment wheel coaxially connected to the rotating shaft of the sheave and a side plate slidably arranged in the side frame, and the side plate and the abutment wheel are in rolling engagement; A second sliding groove is further provided on the side frame, and a first sliding connection part is slidably installed in the second sliding groove. The first sliding connection part is connected to the side plate, and a pulling rod is connected to the first sliding connection part.

[0014] As a further solution of the present invention: the upper surface of the side plate is provided with inclined surfaces and horizontal surfaces arranged alternately, and a groove is provided in the middle of the horizontal surface.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By setting up a two-way offset component, a trigger plate and a locking plate, firstly, the stability of the stop structure during the patient's normal rehabilitation training can be guaranteed, and the incorrect matching of the stop structure and the locking plate due to accidental touch or operational error can be effectively prevented during the patient's normal rehabilitation training, resulting in the pressure roller being unable to lift up normally, which effectively guarantees the continuity and effectiveness of the rehabilitation training and enables the patient to train continuously and stably. Secondly, when the patient's wrist suddenly loses strength during the rehabilitation training, the locking plate immediately locks the stop structure while the pressure roller accelerates downward, thereby effectively avoiding secondary injury to the patient's wrist due to the rapid reverse movement of the pressure roller, greatly improving the safety of rehabilitation training and providing patients with all-round protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0017] Figure 2 This is a structural schematic diagram from another angle of an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0018] Figure 3 This is a schematic diagram of the internal structure of the side frame in an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0019] Figure 4 This is a structural schematic diagram of the adjustment structure in an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0020] Figure 5 This is a schematic planar structural diagram of an adjustment structure in an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0021] Figure 6This is a schematic diagram of the structure of the elastic tensioning structure in an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0022] Figure 7 This is a schematic structural diagram of a bidirectional offset component in an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0023] Figure 8 This is a structural schematic diagram of the first state of a bidirectional offset component in an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0024] Figure 9 This is a structural schematic diagram of the extreme positions of switching between the first state and the second state of a bidirectional offset component in an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0025] Figure 10 This is a structural schematic diagram of the second state of a bidirectional offset component in an embodiment of a hand joint rehabilitation tester based on tactile nerve conduction monitoring.

[0026] In the figure: 1. base; 2. detection device; 3. side frame; 4. retardation chamber; 401. first slide groove; 402. second slide groove; 403. third slide groove; 5. groove wheel; 6. support roller; 7. abutment wheel; 8. first sliding connection part; 9. side plate; 901. inclined surface; 902. horizontal surface; 903. groove; 10. pulling rod; 11. second sliding connection part; 12. first cylindrical spring; 13. pressure roller; 14. telescopic shaft; 15. second cylindrical spring; 16. connecting rod; 17. limiting sleeve; 18. horizontal axis; 1801. locking part; 1802. annular protrusion; 19. pulley; 20. trigger plate; 2001. protrusion; 21. locking plate; 2101, locking groove; 22. reset rod. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] See also Figures 1 to 10 In an embodiment of the present invention, a hand joint rehabilitation tester based on tactile nerve conduction monitoring includes: a base 1, a support roller 6, an elastic tensioning structure and a bidirectional offset component.

[0030] The base 1 is provided with a detection device 2 and two sets of symmetrically arranged side frames 3; The support roller 6 is provided between the two sets of side frames 3 and is used to support the patient's wrist; The elastic tensioning structure is installed between the two sets of side frames 3. The patient's hand lifting can drive the elastic tensioning structure to move. A hysteresis chamber 4 is formed inside the side frame 3. A third sliding groove 403 is provided on the inner wall of the hysteresis chamber 4. The elastic tensioning structure includes a second sliding connection portion 11 slidably mounted in the third sliding groove 403, a pressure roller 13 rotatably mounted on the second sliding connection portion 11, and the second sliding connection portion 11 is connected to the outer wall of the side frame 3 via a first cylindrical spring 12; When the patient's hand is lifted up, the pressure roller 13 can move upward and pull the first cylindrical spring 12 .

[0031] During the rehabilitation training, the patient needs to place his wrist on the support roller 6, ensuring that the palm is facing upward and the fingers are lightly placed on the lower part of the pressure roller 13. The patient can freely choose the palm position, or hold the pressure roller 13 tightly, or keep the palm open. During training, the patient uses the support roller 6 as a stable fulcrum, lifts the palm upward, and drives the pressure roller 13 upward, thereby gradually stretching the first cylindrical spring 12. During the stretching process, the first cylindrical spring 12 will generate corresponding elastic force according to Hooke's law, providing appropriate resistance for the patient's wrist rehabilitation training.

[0032] This design allows patients to flexibly adjust the height of the pressure roller 13 according to the actual situation of their own rehabilitation process, so as to accurately select rehabilitation training modes of different intensities. For example, for patients in the early stages of rehabilitation and with weaker strength, a smaller lifting height can be selected to make the first cylindrical spring 12 produce lighter resistance, thereby avoiding damage to the affected part caused by excessive load; and as rehabilitation progresses, the patient's strength gradually recovers, and the lifting height can be gradually increased, and the resistance can be increased to meet the needs of higher-intensity training and promote the rapid recovery of wrist function.

[0033] Based on the above settings, it not only helps to enhance the patient's wrist muscle strength and improve the range of motion and flexibility of the joints, but also effectively prevents common complications such as muscle atrophy and joint stiffness. Through continuous and scientific training, patients can recover hand function faster, regain the ability to take care of themselves, improve their quality of life, and lay a solid foundation for returning to normal life and work.

[0034] See also Figure 3 、 Figures 6 to 10 The bidirectional offset assembly is arranged in the side frame 3 and connected to the elastic tensioning structure. The trigger plate 20 and the locking plate 21 arranged on the side frame 3 cooperate with the bidirectional offset assembly to lock the elastic tensioning structure when the elastic tensioning structure accelerates toward the base 1. The bidirectional offset assembly comprises: An energy storage structure and a stop structure are provided on the second sliding connection portion 11, wherein the stop structure has a first state and a second state that are switched when triggered. When the stop structure collides with the trigger plate 20, the stop structure can switch from the first state to the second state; The energy storage structure and the stop structure are connected via a connecting rod 16; The energy storage structure includes a telescopic shaft 14 slidably mounted on the second sliding connection portion 11, a limit ring is formed on the telescopic shaft 14, and a second cylindrical spring 15 is sleeved on the telescopic shaft 14, one end of the second cylindrical spring 15 is connected to the limit ring, and the other end is connected to the second sliding connection portion 11, wherein the stiffness of the second cylindrical spring 15 is much smaller than the stiffness of the first cylindrical spring 12; The lower end of the telescopic shaft 14 is rotatably connected to one end of the connecting rod 16 .

[0035] During the normal stage of rehabilitation training, that is, in the first state, the stop structure is precisely located close to the trigger plate 20. At this time, the second cylindrical spring 15 uses its elastic force to ensure that the stop structure maintains a stable state, effectively preventing the stop structure and the locking plate 21 from incorrectly matching due to accidental touch or operational errors during the patient's normal rehabilitation training, thereby ensuring the smooth progress of rehabilitation training. The stable design of the stop structure effectively guarantees the continuity and effectiveness of rehabilitation training, allowing patients to train continuously and stably.

[0036] However, when the patient's wrist suddenly loses strength during rehabilitation training, the stop structure can quickly cooperate with the trigger plate 20 while the pressure roller 13 accelerates downward, switching from the first state to the second state. The locking plate 21 immediately locks the stop structure, thereby effectively avoiding secondary injury to the patient's wrist due to the rapid reverse movement of the pressure roller 13, greatly improving the safety of rehabilitation training and providing patients with all-round protection.

[0037] Based on the above settings, during normal training, the stability and continuity of training are ensured, allowing patients to focus on rehabilitation training without worrying about interference caused by equipment failure or misoperation. When an unexpected situation occurs, it can quickly switch to a safe state, effectively reducing the risk of patient injury.

[0038] Furthermore, in the second state, the stop structure is close to the locking plate 21. At this time, the stop structure is locked under the elastic force provided by the second cylindrical spring 15. The specific locking principle is as follows: The stop structure includes two sets of limiting sleeves 17 symmetrically mounted on the second sliding connection portion 11. A transverse shaft 18 is slidably mounted between the two sets of limiting sleeves 17. A reset rod 22 is connected to the transverse shaft 18. An annular protrusion 1802 is provided in the middle of the transverse shaft 18. The annular protrusion 1802 abuts and fits with the two sets of limiting sleeves 17. The annular protrusion 1802 is rotatably connected to the other end of the connecting rod 16; Specifically, the trigger plate 20 is provided with multiple groups of protrusions 2001 equidistantly on one side of the horizontal axis 18, and the protrusions 2001 are adapted to the pulley 19 rotatably mounted on one end of the horizontal axis 18. The locking plate 21 is provided with multiple groups of locking grooves 2101 equidistantly toward one end of the horizontal axis 18, and the locking portion 1801 provided at the other end of the horizontal axis 18 is adapted to the locking groove 2101.

[0039] In the initial state, the annular protrusion 1802 is in contact with the limiting sleeve 17 near the trigger plate 20. At this time, the transverse shaft 18 is in a stable state under the elastic force provided by the second cylindrical spring 15. In this state, the projections of the pulley 19 and the protrusion 2001 on the horizontal plane have an overlapping area. That is, during the upward movement of the second sliding connection part 11, the pulley 19 will collide with the protrusion 2001. During the patient's training, the patient drives the second sliding connection part 11 to move at a slow speed through the pressure roller 13. As a result, when the pulley 19 collides with the protrusion 2001, although the transverse shaft 18 will move laterally, it will not move to the middle position between the two sets of limiting sleeves 17. When the pulley 19 separates from the protrusion 2001, the pulley 19 can be reset under the force of the second cylindrical spring 15. Based on this, during normal training, the locking portion 1801 will not be inserted into the locking groove 2101, ensuring the orderly progress of training.

[0040] When the patient loses strength, the second sliding connection part 11 will accelerate downward under the traction of the first cylindrical spring 12. At this time, the collision force generated when the pulley 19 abuts against the protrusion 2001 is greater, so that after the pulley 19 and the protrusion 2001 are separated, the horizontal shaft 18 can continue to move due to inertia, causing the annular protrusion 1802 to move toward the middle of the two sets of limiting sleeves 17. During this process, the second cylindrical spring 15 is compressed, and when the annular protrusion 1802 moves past the middle position of the two-word limiting sleeves 17, the second cylindrical spring 15 can drive the horizontal shaft 18 to move toward the locking plate 21 by actively releasing elastic potential energy, and when the locking part 1801 is flush with the locking groove 2101, the locking part 1801 is inserted into the locking groove 2101, causing the second sliding connection part 11 to stop moving, thereby effectively preventing the second sliding connection part 11 from driving the patient's hand to move quickly through the pressure roller 13, causing the patient's wrist to be injured again.

[0041] See also Figures 3 to 5 , the hand joint rehabilitation tester based on tactile nerve conduction monitoring further includes: A first chute 401 is provided on the inner wall of the side frame 3, wherein a sheave 5 is rotatably mounted in the first chute 401, and the sheave 5 is rotatably connected to the support roller 6; an adjusting structure connecting the side frame 3 and the support roller 6, wherein the adjusting structure is used to adjust the height of the support roller 6; The adjustment structure includes an abutment wheel 7 coaxially connected to the rotating shaft of the sheave 5 and a side plate 9 slidably arranged in the side frame 3. The side plate 9 and the abutment wheel 7 are in rolling engagement. The upper surface of the side plate 9 is provided with alternating inclined surfaces 901 and horizontal surfaces 902. The middle portion of the horizontal surface 902 is provided with a groove 903. A second sliding groove 402 is further provided on the side frame 3 , and a first sliding connection part 8 is slidably installed in the second sliding groove 402 . The first sliding connection part 8 is connected to the side plate 9 , and a pulling rod 10 is connected to the first sliding connection part 8 .

[0042] It should be noted that a touch sensing device is provided on the surface of the pressure roller 13, and the touch sensing device is electrically connected to the detection device 2. When in use, the height of the support roller 6 can be adjusted by pushing and pulling the side panel 9, so that in the initial state, the patient's wrist can be bent to different degrees. Specifically, the limit is when the patient's wrist is bent to the maximum and does not trigger the touch sensing device (at this time, the patient's palm will not touch the touch sensing device). In this state, the patient can produce a larger opening and closing angle during training, thereby matching the patient's training intensity.

[0043] Among them, the side plate 9 can be driven to move along the length direction of the second slide groove 402 through the pulling rod 10, and when the abutment wheel 7 cooperates with the inclined surface 901, the height of the abutment wheel 7 can be changed, so that the support roller 6 can move along the length direction of the first slide groove 401, and when the abutment wheel 7 moves to the horizontal surface 902, the height of the support roller 6 can be adjusted.

[0044] Furthermore, when the abutment wheel 7 moves to the horizontal plane 902, the abutment wheel 7 can be restricted in the groove 903 to a certain extent. When the patient's wrist is placed on the support roller 6, the stability of the abutment wheel 7 in the corresponding groove 903 can be ensured, thereby improving the height stability of the support roller 6.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0046] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hand joint rehabilitation tester based on tactile nerve conduction monitoring, characterized in that: include: A base (1), wherein the base (1) is provided with a detection device (2) and two sets of symmetrically arranged side frames (3); A support roller (6) is provided between the two sets of side frames (3) and is used to support the patient's wrist; An elastic tensioning structure is installed between the two sets of side frames (3), and the patient's hand can be raised to drive the elastic tensioning structure to move; A bidirectional offset assembly is arranged in the side frame (3) and connected to the elastic tensioning structure. A trigger plate (20) and a locking plate (21) arranged on the side frame (3) cooperate with the bidirectional offset assembly to lock the elastic tensioning structure when the elastic tensioning structure accelerates toward the base (1).

2. A hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 1, characterized in that: A retardation chamber (4) is formed inside the side frame (3), and a third sliding groove (403) is provided on the inner wall of the retardation chamber (4); The elastic tensioning structure comprises a second sliding connection part (11) slidably mounted in the third sliding groove (403), a pressure roller (13) being rotatably mounted on the second sliding connection part (11), and the second sliding connection part (11) is connected to the outer wall of the side frame (3) via a first columnar spring (12); When the patient's hand is lifted up, the pressure roller (13) can move upward and pull the first cylindrical spring (12).

3. The hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 2, characterized in that: The bidirectional offset assembly comprises: An energy storage structure and a stop structure are provided on the second sliding connection portion (11), wherein the stop structure has a first state and a second state that are switched when triggered, and when the stop structure collides with the trigger plate (20), the stop structure can switch from the first state to the second state; The energy storage structure and the stop structure are connected via a connecting rod (16).

4. The hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 3, characterized in that: The energy storage structure comprises a telescopic shaft (14) slidably mounted on the second sliding connection portion (11), a limiting ring is formed on the telescopic shaft (14), and a second cylindrical spring (15) is sleeved on the telescopic shaft (14), one end of the second cylindrical spring (15) is connected to the limiting ring, and the other end is connected to the second sliding connection portion (11); The lower end of the telescopic shaft (14) is rotatably connected to one end of the connecting rod (16).

5. The hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 3, characterized in that: The stop structure comprises two groups of limiting sleeves (17) symmetrically mounted on the second sliding connection portion (11), a transverse shaft (18) is slidably mounted between the two groups of limiting sleeves (17), a reset rod (22) is connected to the transverse shaft (18), and an annular protrusion (1802) is provided in the middle of the transverse shaft (18), and the annular protrusion (1802) is abutted and adapted with the two groups of limiting sleeves (17); The annular protrusion (1802) is rotatably connected to the other end of the connecting rod (16).

6. The hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 5, characterized in that: The trigger plate (20) is provided with a plurality of groups of protrusions (2001) at equal intervals on one side of the trigger plate (20) facing the transverse axis (18), and the protrusions (2001) are adapted to a pulley (19) rotatably mounted on one end of the transverse axis (18).

7. The hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 5, characterized in that: A plurality of groups of locking grooves (2101) are equidistantly provided at one end of the locking plate (21) facing the transverse axis (18), and a locking portion (1801) provided at the other end of the transverse axis (18) is adapted to the locking grooves (2101).

8. The hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 1, characterized in that: Also includes: A first chute (401) is provided on the inner wall of the side frame (3), a sheave (5) is rotatably mounted in the first chute (401), and the sheave (5) is rotatably connected to the support roller (6); An adjustment structure connecting the side frame (3) and the support roller (6), wherein the adjustment structure is used to adjust the height of the support roller (6).

9. The hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 8, characterized in that: The adjustment structure comprises an abutment wheel (7) coaxially connected to the rotating shaft of the groove wheel (5) and a side plate (9) slidably arranged in the side frame (3), and the side plate (9) and the abutment wheel (7) are in rolling engagement; A second sliding groove (402) is also provided on the side frame (3), and a first sliding connection part (8) is slidably installed in the second sliding groove (402), the first sliding connection part (8) is connected to the side plate (9), and a pulling rod (10) is connected to the first sliding connection part (8).

10. The hand joint rehabilitation tester based on tactile nerve conduction monitoring according to claim 9, characterized in that: The upper surface of the side plate (9) is provided with inclined surfaces (901) and horizontal surfaces (902) arranged alternately, and a groove (903) is provided in the middle of the horizontal surface (902).

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