Automatic reduction device for distal radius fracture

Abstract

The invention discloses an automatic reduction device for distal radius fracture, comprising: a mobile base; a lifting arm fixed support platform, the bottom end of which is fixedly connected to one side of the top of the mobile base; a lifting support platform, the bottom end of which is fixedly connected to the other side of the top of the mobile base; a horizontal movable pulling and pressing mechanism, the bottom end of which is slidably connected to the top of the lifting support platform through a first driving mechanism along the pulling direction, the top of the horizontal movable pulling and pressing mechanism is provided with an arc slide rail, and a plurality of pressing and correcting push rod mechanisms are slidably connected on the arc slide rail, and a pressure sensing probe is fixed to the pressing end of each pressing and correcting push rod mechanism; a horizontal movable pulling palmar flexion angle adjustment platform, the bottom end of which is slidably connected to the bottom of the horizontal movable pulling and pressing mechanism through a second driving mechanism along the pulling direction, and the top of the horizontal movable pulling palmar flexion angle adjustment platform is connected to the top of the lifting arm fixed support platform. The device has a simple structure, high safety, and can achieve accurate pulling and reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and more particularly to an automatic reduction device for distal radius fracture. Background Art

[0002] Distal radius fracture is one of the most common fractures in the emergency department, and it often occurs in middle-aged and elderly women. The injury mechanism is often caused by falling with the hands stretched out to support the ground, resulting in the concentration of violence on the cancellous bone of the distal radius and causing fracture. Epidemiological studies have shown that with the aging of the population and changes in people's lifestyles, the incidence of distal radius fractures is increasing. At the same time, bad weather and environment will increase the risk of accidents.

[0003] For most distal radius fractures, especially the common extension fracture (Colles fracture), it can be treated by traditional Chinese medicine bone-setting techniques combined with plaster fixation. However, this traditional fracture reduction technique has specific requirements for the magnitude, direction, location of force, and duration of traction, and its treatment effect depends largely on the doctor's experience and judgment. For a doctor, it takes a lot of energy to master the reduction technique and accumulate experience through years of practical exploration. Young doctors lack experience, and repeated reduction techniques with excessive or insufficient reduction force can easily cause secondary injuries and affect the patient's recovery. In addition, in some rural and remote areas, there is a shortage of orthopedic specialists, and people are limited by regional medical conditions. They do not seek medical treatment in time after fracture, resulting in old fractures or abnormal healing of fractures, which increases the difficulty of later treatment and brings a heavy burden to the health care system and society.

[0004] The existing patents include a series-parallel hybrid mechanism that uses an electro-hydraulic driver combined with a six-degree-of-freedom parallel robot (such as patent: 201210191841.6), a reduction mechanism that uses a manipulator to clamp and dock the forearm bone fracture (such as patent: 202010794537.5), and a shell mechanism that uses a lateral airbag to achieve lateral reduction of distal limb fractures (such as patent: 201910599871.2). The fracture reduction mechanism designed by them has poor controllability and poor accuracy, and cannot meet the reduction of distal radius fractures.

[0005] Therefore, how to provide an intelligent fracture reduction device designed specifically for distal radius fractures, with a simple structure and high safety performance, and to simulate Chinese medicine bone setting techniques to the greatest extent, so as to achieve precise reduction, save health human resources and improve medical service efficiency, is an automatic reduction device for distal radius fractures that urgently needs to be solved by technical personnel in this field. Summary of the invention

[0006] In view of this, the present invention provides an intelligent fracture reduction device specially designed for distal radius fractures, with a simple structure and high safety performance, and simulates the Chinese medicine bone setting techniques to the greatest extent, aiming to achieve accurate reduction, save health human resources and improve medical service efficiency.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] An automatic reduction device for distal radius fracture, comprising:

[0009] Mobile base;

[0010] A lifting arm fixed support platform, wherein the bottom end of the lifting arm fixed support platform is fixedly connected to one side of the top end of the movable base;

[0011] A lifting support platform, the bottom end of which is fixedly connected to the other side of the top end of the movable base;

[0012] A horizontally movable pulling and pressing mechanism, wherein the bottom end of the horizontally movable pulling and pressing mechanism is slidably connected to the top end of the lifting support platform through a first driving mechanism along the pulling direction, and an arc-shaped slide rail is provided on the top of the horizontally movable pulling and pressing mechanism, and a plurality of pressing and correcting push rod mechanisms are slidably connected to the arc-shaped slide rail, and a pressure sensing probe is fixed to the pressing end of each of the pressing and correcting push rod mechanisms;

[0013] A horizontally movable traction palmar flexion angle adjustment platform, the bottom end of which is slidably connected to the bottom of the horizontally movable traction and pressing mechanism along the traction direction through a second driving mechanism, and the top end of which is penetrated through the middle of the arc-shaped slide rail and connected to the top end of the lifting arm fixed support platform.

[0014] It can be known from the above technical scheme that compared with the prior art, the present invention discloses an automatic reduction device for distal radius fractures. When in use, the patient places the arm on a lifting arm fixed support platform for fixation, and the palm is placed on a horizontal movable traction palmar flexion angle adjustment platform and fixed, and then the horizontal movable traction and pressing mechanism and the horizontal movable traction palmar flexion angle adjustment platform are respectively driven by the first drive mechanism and the second drive mechanism to move in the traction direction to achieve traction operation, and then the fracture position is pressed and reset by multiple pressing and correction push rod mechanisms on the arc track, and the pressing force can be monitored in real time by the pressure sensing probe to ensure the safety and accuracy of the reduction. The device is specially designed for distal radius fractures, has a simple structure, high safety performance, and simulates the traditional Chinese medicine bone setting technique to the greatest extent, aiming to achieve accurate reduction, save health human resources and improve medical service efficiency.

[0015] Furthermore, the lifting arm fixed support platform includes:

[0016] A first lifting support column, one end of which is fixedly connected to one side of the top end of the mobile base;

[0017] An arm support plate, the bottom end of the arm support plate is fixedly connected to the other end of the first lifting support column, two arm limit columns are fixed at intervals on the top of the arm support plate, a first strap insertion hole is opened on the top of the arm support plate at the position of the forearm, and the top of the horizontally movable traction palm flexion angle adjustment platform is connected to the arm support plate.

[0018] Furthermore, the lifting support platform comprises:

[0019] A second lifting support column, one end of which is fixedly connected to the other side of the top end of the mobile base;

[0020] A support plate, wherein the bottom end of the support plate is fixedly connected to the other end of the second lifting support column, and the bottom end of the horizontally movable pulling and pressing mechanism is slidably connected to the top end of the support plate along the pulling direction through the first driving mechanism.

[0021] The beneficial effect of adopting the above technical solution is that the first lifting support column and the second lifting support column can adjust the height of the arm support plate and the horizontally movable traction palmar flexion angle adjustment table to adapt to different patients and is easy to use.

[0022] Furthermore, the horizontally movable pulling and pressing mechanism also includes:

[0023] A first bottom plate, wherein the bottom end of the first bottom plate is slidably connected to the top end of the support plate along the pulling direction through the first driving mechanism, and the bottom end of the horizontally movable pulling palmar flexion angle adjustment platform is slidably connected to the top end of the first bottom plate along the pulling direction through the second driving mechanism;

[0024] A vertical plate, the bottom end of which is fixedly connected to the top end of the first bottom plate, a plurality of cantilever support plates are evenly fixed on one side of the vertical plate, and the free ends of the plurality of cantilever support plates are fixedly connected to the arc-shaped slide rail.

[0025] Furthermore, the first driving mechanism comprises:

[0026] A first slide rail, wherein the first slide rails are two spaced apart and arranged in parallel, the two first slide rails are fixed to the top of the support plate along the pulling direction, the two first slide rails are slidably connected to a first slider, and the top of the first slider is fixedly connected to the bottom of the first bottom plate;

[0027] A first driving motor, which is fixed to the top of the supporting plate and located between the two first slide rails;

[0028] A first support seat, wherein the first support seats are two spaced apart and arranged in parallel, and the bottom ends of the two first support seats are fixedly connected to the top end of the support plate;

[0029] A first transmission screw, the first transmission screw is passed through the two first support seats, one end of the first transmission screw is fixedly connected to the output shaft of the first drive motor, a first nut is screwed on the first transmission screw, and the top end of the first nut is fixedly connected to the bottom end of the first base plate.

[0030] Furthermore, the horizontally movable palmar flexion angle adjustment platform comprises:

[0031] A second bottom plate, wherein the bottom end of the second bottom plate is slidably connected to the top end of the first bottom plate along the pulling direction via the second driving mechanism;

[0032] A supporting column, one end of which is fixedly connected to the top end of the second bottom plate;

[0033] A palm placement board, wherein the bottom end of the palm placement board is hingedly connected to the other end of the support column, a second strap insertion hole is provided on the palm placement board, and the palm placement board is connected to the arm support board;

[0034] An electric push rod, the bottom end of the shell of the electric push rod is hingedly connected to the top end of the second bottom plate, and the telescopic end of the electric push rod is hingedly connected to the bottom edge of the palm placement plate.

[0035] Furthermore, the second driving mechanism comprises:

[0036] A second slide rail, wherein the second slide rails are two spaced apart and arranged in parallel, the two second slide rails are fixed to the top of the first bottom plate along the pulling direction, the two second slide rails are slidably connected to a second slider, and the top of the second slider is fixedly connected to the bottom of the second bottom plate;

[0037] A second driving motor, wherein the second driving motor is fixed to the top of the first bottom plate and is located between the two second slide rails;

[0038] A second support seat, wherein the second support seats are two spaced apart and arranged in parallel, and the bottom ends of the two second support seats are fixedly connected to the top end of the first bottom plate;

[0039] A second transmission screw, the second transmission screw is passed through the two second support seats, one end of the second transmission screw is fixedly connected to the output shaft of the second drive motor, a second nut is screwed on the second transmission screw, and the top end of the second nut is fixedly connected to the bottom end of the second base plate.

[0040] The beneficial effect of adopting the above technical solution is that the electric push rod can adjust the inclination angle of the palm placement board to facilitate the adjustment of the palm flexion and dorsiflexion angles of the patient's wrist; the first drive mechanism and the second drive mechanism jointly realize the adjustment of the palm placement board in the horizontal position along the pulling direction, thereby completing the long-axis traction process of the hand.

[0041] Furthermore, the outer peripheral wall of the arc-shaped slide rail is provided with a toothed surface, and the outer peripheral wall and the inner peripheral wall of the arc-shaped slide rail are provided with rolling grooves, and each of the pressing and correcting push rod mechanisms includes:

[0042] A connecting plate, one side of which is rotatably connected to a plurality of rollers, the rollers being in rolling contact with the rolling grooves;

[0043] A third driving motor, wherein the third driving motor is fixed on the connecting plate, and a driving end of the third driving motor is arranged through the connecting plate;

[0044] A driving gear, which is sleeved on the driving end of the third driving motor and is meshed and transmission-connected with the toothed surface;

[0045] A fixing plate, one side of which is fixedly connected to the other side of the connecting plate;

[0046] An electric pressing push rod, the shell of which is fixedly connected to the fixing plate, and the pressing end of the electric pressing push rod is fixed with the pressure sensing probe.

[0047] The beneficial effect of adopting the above technical solution is that the third driving motor drives the driving gear to rotate, thereby causing the driving gear to roll on the tooth surface, thereby realizing the movement of the electric pressing push rod.

[0048] Furthermore, the mobile base includes:

[0049] A base plate, one end of the first lifting support column and one end of the second lifting support column are both fixedly connected to the top of the base plate;

[0050] The movable support fixed wheels are multiple and evenly distributed at the bottom end of the base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0052] Figure 1The accompanying drawing is a schematic diagram of the axial structure of an automatic reduction device for distal radius fracture provided by the present invention.

[0053] Figure 2 The attached picture is Figure 1 Schematic diagram of the side structure.

[0054] Figure 3 The accompanying drawing is a schematic structural diagram of a first driving mechanism disposed on a support plate.

[0055] Figure 4 The attached picture is Figure 1 Schematic diagram of the enlarged structure of local A in the middle.

[0056] Figure 5 The accompanying drawing is a schematic structural diagram of the press-correction push rod mechanism. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0058] See also Figure 1-Figure 5 The embodiment of the present invention discloses an automatic reduction device for distal radius fracture, comprising:

[0059] Mobile base 1;

[0060] The lifting arm fixed support platform 2, the bottom end of the lifting arm fixed support platform 2 is fixedly connected to one side of the top end of the movable base 1;

[0061] A lifting support platform 3, the bottom end of the lifting support platform 3 is fixedly connected to the other side of the top end of the movable base 1;

[0062] A horizontal movable pulling and pressing mechanism 4, the bottom end of which is slidably connected to the top end of the lifting support platform 3 via a first driving mechanism 5 along the pulling direction, and a curved slide rail 43 is provided on the top of the horizontal movable pulling and pressing mechanism 4, and a plurality of pressing and correcting push rod mechanisms 44 (preferably four) are slidably connected to the curved slide rail 43, and a pressure sensing probe 45 is fixed to the pressing end of each pressing and correcting push rod mechanism 44;

[0063] A horizontally movable traction palmar flexion angle adjustment platform 6, the bottom end of which is slidably connected to the bottom of the horizontally movable traction and pressing mechanism 4 along the traction direction through a second driving mechanism 7, and the top end of the horizontally movable traction palmar flexion angle adjustment platform 6 is arranged in the middle of the arc-shaped slide rail 43 and is connected to the top end of the lifting arm fixed support platform 2.

[0064] The lifting arm fixed support platform 2 comprises:

[0065] A first lifting support column 21 (an existing structure), one end of which is fixedly connected to one side of the top end of the mobile base 1;

[0066] An arm support plate 22, the bottom end of the arm support plate 22 is fixedly connected to the other end of the first lifting support column 21, two arm limit columns 23 are fixed at intervals on the top of the arm support plate 22, and a first strap insertion hole 221 is provided at the top of the arm support plate 22 at the position of the forearm, and the top of the horizontally movable traction palmar flexion angle adjustment platform 6 is connected to the arm support plate 22.

[0067] The lifting support platform 3 comprises:

[0068] A second lifting support column 31 (an existing structure), one end of which is fixedly connected to the other side of the top of the mobile base 1;

[0069] The support plate 32 has its bottom end fixedly connected to the other end of the second lifting support column 31 , and the bottom end of the horizontally movable pulling and pressing mechanism 4 is slidably connected to the top end of the support plate 32 along the pulling direction through the first driving mechanism 5 .

[0070] The horizontally movable pulling and pressing mechanism 4 also includes:

[0071] A first bottom plate 41, the bottom end of the first bottom plate 41 is slidably connected to the top end of the support plate 32 along the pulling direction through a first driving mechanism 5, and the bottom end of the horizontally movable pulling palmar flexion angle adjustment platform 6 is slidably connected to the top end of the first bottom plate 41 along the pulling direction through a second driving mechanism 7;

[0072] The vertical plate 42 has a bottom end fixedly connected to the top of the first bottom plate 41 , and a plurality of cantilever support plates are evenly fixed on one side of the vertical plate 42 , and the free ends of the plurality of cantilever support plates are fixedly connected to the arc-shaped slide rail 43 .

[0073] The first driving mechanism 5 comprises:

[0074] First slide rails 51, two first slide rails 51 are arranged in parallel at intervals, the two first slide rails 51 are fixed to the top of the support plate 32 along the pulling direction, the two first slide rails 51 are slidably connected to the first slider 52, and the top of the first slider 52 is fixedly connected to the bottom of the first bottom plate 41;

[0075] A first driving motor 53, which is fixed to the top of the supporting plate 32 and is located between the two first slide rails 51;

[0076] First support seats 54, two first support seats 54 are arranged in parallel at intervals, and the bottom ends of the two first support seats 54 are fixedly connected to the top end of the support plate 32;

[0077] The first transmission screw 55 is passed through the two first support seats 54 , one end of the first transmission screw 55 is fixedly connected to the output shaft of the first drive motor 53 , a first nut 56 is screwed on the first transmission screw 55 , and the top end of the first nut 56 is fixedly connected to the bottom end of the first base plate 41 .

[0078] The horizontal movable palmar flexion angle adjustment platform 6 comprises:

[0079] A second bottom plate 61, the bottom end of the second bottom plate 61 is slidably connected to the top end of the first bottom plate 41 along the pulling direction via a second driving mechanism 7;

[0080] A support column 62, one end of which is fixedly connected to the top of the second bottom plate 61;

[0081] A palm placing plate 63, the bottom end of which is hingedly connected to the other end of the supporting column 62, a second strap insertion hole 631 is provided on the palm placing plate 63, and the palm placing plate 63 is connected to the arm supporting plate 22;

[0082] The electric push rod 64 has a shell whose bottom end is hingedly connected to the top end of the second bottom plate 61 , and a telescopic end of the electric push rod 64 is hingedly connected to the bottom edge of the palm placement plate 63 .

[0083] The second driving mechanism 7 comprises:

[0084] The second slide rails 71 are two second slide rails 71 arranged in parallel at intervals. The two second slide rails 71 are fixed to the top of the first bottom plate 41 along the pulling direction. The two second slide rails 71 are slidably connected to the second sliders 72. The top of the second sliders 72 is fixedly connected to the bottom of the second bottom plate 61;

[0085] A second driving motor 73, which is fixed to the top of the first bottom plate 41 and is located between the two second slide rails 71;

[0086] Second support seats 74, two second support seats 74 are arranged in parallel with each other, and the bottom ends of the two second support seats 74 are fixedly connected to the top end of the first bottom plate 41;

[0087] The second transmission screw 75 is passed through the two second support seats 74, one end of the second transmission screw 75 is fixedly connected to the output shaft of the second drive motor 73, and a second nut 76 is screwed on the second transmission screw 75, and the top end of the second nut 76 is fixedly connected to the bottom end of the second base plate 61.

[0088] The outer peripheral wall of the arc-shaped slide rail 43 is provided with a toothed surface 431, and the outer peripheral wall and the inner peripheral wall of the arc-shaped slide rail 43 are both provided with rolling grooves 432. Each pressing and correcting push rod mechanism 44 includes:

[0089] A connecting plate 441, one side of the connecting plate 441 is rotatably connected to a plurality of rollers 442, and the rollers 442 are in rolling contact with the rolling grooves 432;

[0090] A third driving motor 443, the third driving motor 443 is fixed on the connecting plate 441, and a driving end of the third driving motor 443 is arranged through the connecting plate 441;

[0091] A driving gear 444, which is sleeved on the driving end of the third driving motor 443 and meshed with the toothed surface 431 for transmission connection;

[0092] A fixing plate 445, one side of the fixing plate 445 is fixedly connected to the other side of the connecting plate 441;

[0093] The electric pressing push rod 446 has a shell fixedly connected to the fixing plate 445 , and a pressure sensing probe 45 is fixedly provided at the pressing end of the electric pressing push rod 446 .

[0094] The mobile base 1 comprises:

[0095] The base plate 11, one end of the first lifting support column 21 and one end of the second lifting support column 31 are fixedly connected to the top of the base plate 11;

[0096] The movable support fixing wheel 12, the movable support fixing wheel 12 is multiple and evenly distributed at the bottom end of the base plate 11, and the movable support fixing wheel can be purchased as an optional part.

[0097] When in use, the patient sits next to the device, fixes the mobile support fixing wheel, and then adjusts the first lifting support column and the second lifting support column to make the arm support plate and the palm placement plate at an appropriate height with the patient. The patient extends his arm between the two arm limit columns and flexes his elbow, pronates his forearm, and places his hand on the palm placement plate. After adjusting the position, fix the forearm and hand with a strap. According to the patient's X-ray image diagnosis and mark the fracture position at the corresponding part, then adjust the position of the four pressing and correcting push rod mechanisms according to the marked position, and fix the four pressure sensing probes about 1 cm away from the distal end of the fracture line, two on both sides, and two on the top, to achieve fixation of the distal end of the fracture. Then, the first drive mechanism and the second drive mechanism drive together to complete the traction operation at the distal end of the fracture. At the same time, the traction angle can be adjusted by the electric push rod, that is, first adjust the palm placement plate upward to achieve dorsal extension traction, maintain the traction force for a certain period of time, and then perform the reduction operation. An electric pressing push rod on the radial side applies pressure to the radial side of the fracture end, and an electric pressing push rod adjacent to it is fixed to achieve the reduction of the radial displacement of the fracture fragment. Then adjust the palm placement plate downward to drive the hand to perform palmar flexion of the wrist joint. At the same time, the two electric pressing push rods located above the palm press the dorsal side of the fracture fragment to correct the dorsal displacement. A certain traction force is maintained during the entire reduction process. In each reduction operation, two of the electric pressing push rods are allowed to have a certain degree of fine-tuning in the pressure position. After the reduction is completed, the pressing force monitored by four pressure sensing probes and combined with X-ray images can jointly evaluate the alignment of the fracture end and the proximal fracture segment.

[0098] The device simulates the traditional Chinese medicine osteopathic reduction technique to the greatest extent and follows the reverse trauma mechanism. It has adjustable traction angle and traction force, adjustable fracture end pressing and fixed position, and realizes personalized traction reduction. At the same time, it combines with pressure sensing probe to evaluate the fracture reduction process to ensure the safety and accuracy of reduction.

[0099] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0100] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic reduction device for distal radius fracture, characterized in that: include: Mobile base (1); A lifting arm fixed support platform (2), wherein the bottom end of the lifting arm fixed support platform (2) is fixedly connected to one side of the top end of the movable base (1); A lifting support platform (3), the bottom end of the lifting support platform (3) being fixedly connected to the other side of the top end of the movable base (1); A horizontally movable pulling and pressing mechanism (4), wherein the bottom end of the horizontally movable pulling and pressing mechanism (4) is slidably connected to the top end of the lifting support platform (3) along the pulling direction via a first driving mechanism (5), and an arc-shaped slide rail (43) is provided on the top of the horizontally movable pulling and pressing mechanism (4), and a plurality of pressing and correcting push rod mechanisms (44) are slidably connected to the arc-shaped slide rail (43), and a pressure sensing probe (45) is fixed to the pressing end of each of the pressing and correcting push rod mechanisms (44); A horizontally movable traction palmar flexion angle adjustment platform (6), wherein the bottom end of the horizontally movable traction palmar flexion angle adjustment platform (6) is slidably connected to the bottom of the horizontally movable traction and pressing mechanism (4) along the traction direction via a second driving mechanism (7), and the top end of the horizontally movable traction palmar flexion angle adjustment platform (6) is arranged through the middle of the arc-shaped slide rail (43) and is connected to the top end of the lifting arm fixed support platform (2); There are four pressing and correcting push rod mechanisms (44); The fracture location is diagnosed based on the patient's X-ray image and marked at the corresponding position. Then, the positions of the four pressing and correcting push rod mechanisms are adjusted according to the marked positions. The four pressure sensing probes are fixed at 1 cm away from the distal end of the fracture line, two on both sides and two on the top, to achieve fixation of the distal end of the fracture. The first driving mechanism and the second driving mechanism then drive together to complete the traction operation of the distal end of the fracture.

2. The automatic reduction device for distal radius fracture according to claim 1, characterized in that: The lifting arm fixed support platform (2) comprises: A first lifting support column (21), one end of the first lifting support column (21) being fixedly connected to one side of the top end of the movable base (1); An arm support plate (22), wherein the bottom end of the arm support plate (22) is fixedly connected to the other end of the first lifting support column (21), two arm limit columns (23) are fixedly arranged at intervals at the top end of the arm support plate (22), a first strap insertion hole (221) is provided at the top end of the arm support plate (22) at the position of the forearm, and the top end of the horizontally movable traction palmar flexion angle adjustment platform (6) is connected to the arm support plate (22).

3. The automatic reduction device for distal radius fracture according to claim 2, characterized in that: The lifting support platform (3) comprises: A second lifting support column (31), one end of the second lifting support column (31) being fixedly connected to the other side of the top end of the movable base (1); A support plate (32), wherein the bottom end of the support plate (32) is fixedly connected to the other end of the second lifting support column (31), and the bottom end of the horizontally movable pulling and pressing mechanism (4) is slidably connected to the top end of the support plate (32) along the pulling direction via the first driving mechanism (5).

4. The automatic reduction device for distal radius fracture according to claim 3, characterized in that: The horizontally movable pulling and pressing mechanism (4) further comprises: a first bottom plate (41), wherein the bottom end of the first bottom plate (41) is slidably connected to the top end of the support plate (32) along the pulling direction via the first driving mechanism (5), and the bottom end of the horizontally movable pulling palmar flexion angle adjustment platform (6) is slidably connected to the top end of the first bottom plate (41) along the pulling direction via the second driving mechanism (7); A vertical plate (42), the bottom end of the vertical plate (42) being fixedly connected to the top end of the first bottom plate (41), a plurality of cantilever support plates being evenly fixed on one side of the vertical plate (42), and the free ends of the plurality of cantilever support plates being fixedly connected to the arc-shaped slide rail (43).

5. The automatic reduction device for distal radius fracture according to claim 4, characterized in that: The first driving mechanism (5) comprises: A first slide rail (51), wherein the first slide rail (51) is two spaced apart and arranged in parallel, the two first slide rails (51) are fixed to the top end of the support plate (32) along the pulling direction, the two first slide rails (51) are slidably connected to a first slider (52), and the top end of the first slider (52) is fixedly connected to the bottom end of the first bottom plate (41); a first drive motor (53), the first drive motor (53) being fixed to the top of the support plate (32) and located between the two first slide rails (51); A first support seat (54), wherein the first support seats (54) are two spaced apart and arranged in parallel, and the bottom ends of the two first support seats (54) are fixedly connected to the top end of the support plate (32); A first transmission screw (55), the first transmission screw (55) is passed through the two first support seats (54), one end of the first transmission screw (55) is fixedly connected to the output shaft of the first drive motor (53), a first nut (56) is screwed on the first transmission screw (55), and the top end of the first nut (56) is fixedly connected to the bottom end of the first base plate (41).

6. The automatic reduction device for distal radius fracture according to claim 4, characterized in that: The horizontally movable palmar flexion angle adjustment platform (6) comprises: A second bottom plate (61), the bottom end of the second bottom plate (61) being slidably connected to the top end of the first bottom plate (41) along the pulling direction via the second driving mechanism (7); A supporting column (62), one end of the supporting column (62) being fixedly connected to the top end of the second bottom plate (61); A palm placement plate (63), the bottom end of the palm placement plate (63) being hingedly connected to the other end of the support column (62), a second strap insertion hole (631) being provided on the palm placement plate (63), and the palm placement plate (63) being connected to the arm support plate (22); An electric push rod (64), wherein the bottom end of the shell of the electric push rod (64) is hingedly connected to the top end of the second bottom plate (61), and the telescopic end of the electric push rod (64) is hingedly connected to the bottom edge of the palm placement plate (63).

7. The automatic reduction device for distal radius fracture according to claim 6, characterized in that: The second driving mechanism (7) comprises: A second slide rail (71), wherein the second slide rail (71) is two slide rails arranged in parallel at an interval, the two second slide rails (71) are fixed to the top end of the first bottom plate (41) along the pulling direction, the two second slide rails (71) are slidably connected to a second slider (72), and the top end of the second slider (72) is fixedly connected to the bottom end of the second bottom plate (61); a second drive motor (73), the second drive motor (73) being fixed to the top of the first bottom plate (41) and located between the two second slide rails (71); A second support seat (74), wherein the second support seats (74) are two spaced apart and arranged in parallel, and the bottom ends of the two second support seats (74) are fixedly connected to the top end of the first bottom plate (41); A second transmission screw (75), the second transmission screw (75) is passed through the two second support seats (74), one end of the second transmission screw (75) is fixedly connected to the output shaft of the second drive motor (73), a second nut (76) is screwed on the second transmission screw (75), and the top end of the second nut (76) is fixedly connected to the bottom end of the second base plate (61).

8. An automatic reduction device for distal radius fracture according to any one of claims 1 to 7, characterized in that: The outer peripheral wall of the arc-shaped slide rail (43) is provided with a toothed surface (431), and the outer peripheral wall and the inner peripheral wall of the arc-shaped slide rail (43) are both provided with rolling grooves (432). Each of the pressing and correcting push rod mechanisms (44) comprises: A connecting plate (441), wherein one side of the connecting plate (441) is rotatably connected to a plurality of rollers (442), and the rollers (442) are in rolling contact with the rolling grooves (432); a third drive motor (443), the third drive motor (443) being fixed on the connecting plate (441), and a drive end of the third drive motor (443) being arranged through the connecting plate (441); A driving gear (444), the driving gear (444) being sleeved on the driving end of the third driving motor (443) and being meshed and transmission-connected with the toothed surface (431); A fixing plate (445), one side of the fixing plate (445) being fixedly connected to the other side of the connecting plate (441); An electric pressing push rod (446), wherein the shell of the electric pressing push rod (446) is fixedly connected to the fixing plate (445), and the pressing end of the electric pressing push rod (446) is fixed with the pressure sensing probe (45).

9. An automatic reduction device for distal radius fracture according to any one of claims 3 to 7, characterized in that: The mobile base (1) comprises: A base plate (11), one end of the first lifting support column (21) and one end of the second lifting support column (31) are both fixedly connected to the top end of the base plate (11); A movable support fixed wheel (12), wherein the movable support fixed wheel (12) is multiple and evenly distributed at the bottom end of the base plate (11).

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