Shoulder joint fixing support

Abstract

The utility model provides a shoulder joint fixing support which comprises a fixing plate, a first supporting plate arranged on the fixing plate, a second supporting plate hinged to the first supporting plate, a third supporting plate hinged to the second supporting plate and a pressing assembly used for limiting relative rotation of the first supporting plate and the second supporting plate and limiting relative rotation of the second supporting plate and the third supporting plate. The fixing plate is fixed to the waist of a human body, the first supporting plate extends upwards along the waist, the second supporting plate is used for supporting large arms, and the third supporting plate is used for supporting small arms. The pressing assembly comprises a triggering piece and a limiting piece. The limiting piece is inserted in the hinged position of the first supporting plate and the second supporting plate and the joint position of the second supporting plate and the third supporting plate, and when the triggering piece is extruded by external force, the limiting piece is separated from the first supporting plate or the second supporting plate, so that the angle of the second supporting plate or the third supporting plate is adjustable. According to the utility model, the comfort level is increased when a patient lies down, the operation is simple, the patient can operate with one hand, complicated steps in the prior art are avoided, and the practical effect and convenience are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a shoulder joint fixing bracket. Background Art

[0002] Shoulder fixation braces are suitable for post-surgery fixation, shoulder fractures, dislocations, brachial plexus paralysis, or strains. They can also be used for patients with acute frozen shoulder. The primary function of a shoulder fixation brace is to support and protect the injured shoulder joint, preventing movement and reducing pain. By maintaining a stable shoulder joint, the risk of additional injury from abnormal movement is reduced.

[0003] Most existing braces are fixed in place and cannot be removed at will. They must be worn correctly even when sleeping or lying down, otherwise they can easily lead to secondary shoulder joint damage, which can worsen the condition in severe cases. However, with existing braces, the forearm is constrained by the brace and remains in an upward position when lying down, making it impossible to ensure a comfortable sleeping position and affecting the patient's sleep quality. In addition, when changing sleeping positions, the brace can easily compress the fracture end directly, stimulating the surrounding nerve endings, causing pain and hindering the recovery of the shoulder joint. Utility Model Content

[0004] In view of this, the present invention aims to provide a shoulder joint fixing bracket that can be flexibly adjusted to meet the needs of the brace in walking and lying postures, thereby improving the comfort of the user.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A shoulder joint fixation support, comprising a fixing plate, a first support plate provided on the fixing plate, a second support plate hinged to the first support plate, a third support plate hinged to the second support plate, and a pressing assembly for limiting relative rotation between the first support plate and the second support plate, and between the second support plate and the third support plate;

[0007] The fixing plate is fixed to the waist of the human body by a strap, the first support plate extends upward along the waist, the second support plate is used to support the upper arm, and the third support plate is used to support the forearm;

[0008] The pressing component includes a trigger and a limiter;

[0009] The limiting member is inserted at the hinge between the first support plate and the second support plate, and at the intersection of the second support plate and the third support plate. When the trigger member is squeezed by external force, the limiting member is separated from the first support plate or the second support plate, so that the angle of the second support plate or the third support plate can be adjusted.

[0010] Furthermore, the pressing assembly further includes an elastic member disposed between the trigger member and the limiting member;

[0011] When the trigger member is squeezed by an external force, the trigger member drives the limiting member to separate from the first support plate or the second support plate, and the elastic member is compressed to store energy, so that the second support plate can pivot relative to the first support plate, or the third support plate can pivot relative to the second support plate;

[0012] When the action on the triggering member is released, the elastic member releases energy to drive the limiting member to be clamped on the first support plate and the second support plate, or the limiting member to be clamped on the second support plate and the third support plate.

[0013] Furthermore, the pressing assembly further includes a mounting seat and a sliding member inserted into the limiting member;

[0014] The limiting member is slidably arranged at the center of the mounting seat, the triggering member is slidably connected to the mounting seat, and the triggering member is provided with a first pressing block and a second pressing block protruding toward the limiting member;

[0015] When the trigger member moves downward, the first pressing block and the second pressing block drive the sliding member to move up and down, so as to retract or extend the limiting member.

[0016] Furthermore, the first pressing block is provided with a first inclined surface, and the second pressing block is provided with a second inclined surface parallel to the first inclined surface;

[0017] The sliding member is provided with a first matching surface abutting against the first inclined surface and a second matching surface abutting against the second inclined surface on both sides respectively;

[0018] When the trigger member moves downward, the sliding member moves upward along the first inclined surface and the second inclined surface, and the sliding member moves laterally relative to the limit member, and the elastic member squeezes and stores energy; when the elastic member releases energy to drive the trigger member to move upward, the sliding member moves downward along the first inclined surface and the second inclined surface.

[0019] Furthermore, the mounting base includes a bottom plate for fixing the pressing assembly, a surrounding plate vertically arranged on the bottom plate, and a support plate arranged at the center of the bottom plate;

[0020] The trigger member abuts against the inner side of the enclosure;

[0021] The limiting member passes through the support plate and the bottom plate from top to bottom, and the limiting member includes a main body and a protruding plate provided on the upper end of the main body, wherein the protruding plate is overlapped above the support plate;

[0022] A limiting plate is provided at the lower end of the main body for limiting the rotation of the first support plate and the second support plate, or the rotation of the second support plate and the third support plate. The limiting plate protrudes radially outward from the main body.

[0023] Furthermore, the sliding member includes a middle section and sliding sections provided on both sides;

[0024] The middle section has a third inclined surface and a fourth inclined surface parallel to each other;

[0025] An accommodating cavity for accommodating the sliding member is formed on the main body, and a third matching surface and a fourth matching surface parallel to the third inclined surface and the fourth inclined surface respectively are formed on the accommodating cavity.

[0026] Furthermore, a first through hole is provided at one end of the first support plate close to the second support plate and extends through the first through hole in its width direction, and a plurality of first limiting grooves extending in its radial direction are provided at the edge of the first through hole, and the first limiting grooves are communicated with the first through hole;

[0027] A plurality of first limiting grooves are arranged in a circular array on the first supporting plate;

[0028] The second support plate is provided with a first insertion hole adapted to the lower end of the limiting member, and the limiting member is simultaneously inserted into the first insertion hole, the first through hole and the first limiting groove to realize the rotation of the first support plate and the second support plate.

[0029] Furthermore, the third support plate includes two hingedly connected arc plates, the arc plates are provided with a connecting plate, and the connecting plate is provided with a second socket adapted to the lower end of the limiting member;

[0030] The second support plate is provided with a fixing block connected to the connecting plate, and the fixing block is formed with a second through hole and a second limiting groove extending radially along the second through hole;

[0031] A plurality of second limiting grooves are arranged in a circular array on the fixing block.

[0032] Furthermore, a protective layer is provided on the inner side of each of the arc-shaped plates, and the two arc-shaped plates are driven to move closer to or away from each other by external force; and mounting holes are provided on the arc-shaped plates, and the mounting holes are used to install the straps.

[0033] Compared with the prior art, the present invention has the following advantages:

[0034] The shoulder joint fixing bracket described in the present invention is provided with a first support plate, a second support plate and a third support plate which are hinged to each other, and by pressing the pressing assembly, the angle between the first support plate and the second support plate can be adjusted according to the specific needs of the patient, and the angle between the third support plate and the second support plate can be adjusted, which can facilitate the forearm and the upper arm to be kept on the same plane, increase comfort when lying down, meet the needs of patients when walking and resting, and is simple to operate. The patient can operate it with one hand, avoiding the complicated steps of disassembling, adjusting and reassembling multiple bolts as in the prior art, and has better practical effect and convenience while playing the role of protecting the shoulder joint.

[0035] Furthermore, by providing the elastic member and the trigger member, the insertion or removal of the limit member can be facilitated when pressing or releasing the pressure, resulting in a simple structural arrangement and easy operation. Furthermore, by providing the first inclined surface to abut against the first mating surface, and the second inclined surface to abut against the second mating surface, it is possible to ensure that the sliding member moves smoothly when pressed, ensuring the smooth movement of the limit member, and ensuring the stability and smoothness of the rotational adjustment between the first support plate and the second support plate, or between the second support plate and the third support plate.

[0036] In addition, the support plate facilitates the restriction of the stopper, ensuring that the stopper does not deviate while moving up and down along the axial direction of the support plate, thereby enabling smoother removal and insertion of the stopper. Furthermore, by abutting the trigger against the inner side of the enclosure, the trigger is ensured to move radially along the enclosure when moving. This allows the stopper to move smoothly even when the patient applies a tilting force, preventing it from getting stuck due to a deviation in the direction of force application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation on the present invention. In the accompanying drawings:

[0038] Figure 1 This is a schematic diagram of the three-dimensional structure of the shoulder joint fixing bracket according to an embodiment of the present utility model in a walking posture from a first perspective;

[0039] Figure 2 This is a schematic diagram of the three-dimensional structure of the shoulder joint fixing bracket according to an embodiment of the present utility model in a walking posture from a second viewing angle;

[0040] Figure 3 This is a schematic diagram of the three-dimensional structure of the shoulder joint fixing bracket according to an embodiment of the present invention in a walking posture from a third perspective;

[0041] Figure 4 for Figure 3 A partial enlarged view of point I in the middle;

[0042] Figure 5 This is a schematic diagram of the three-dimensional structure of the shoulder joint fixing bracket according to an embodiment of the present invention in a lying position from a first perspective;

[0043] Figure 6 This is a schematic diagram of the three-dimensional structure of the shoulder joint fixing bracket according to an embodiment of the present invention in a lying position from a second viewing angle;

[0044] Figure 7 This is a schematic diagram of the three-dimensional structure of the third support plate and the protective layer according to an embodiment of the present utility model;

[0045] Figure 8 This is a cross-sectional schematic diagram of the pressing assembly according to an embodiment of the present utility model;

[0046] Figure 9 This is a schematic front view of the first through hole and the first limiting groove on the first support plate according to an embodiment of the present utility model.

[0047] Description of reference numerals:

[0048] 1. Fixed plate; 2. First support plate; 3. Second support plate; 4. Third support plate; 5. Pressing assembly; 6. Protective layer;

[0049] 201, first through hole; 202, first limiting groove;

[0050] 301, fixed block; 302, avoidance groove; 303, first plug hole;

[0051] 401, curved plate; 402, connecting plate; 403, second jack; 404, mounting hole;

[0052] 501, trigger member; 502, limit member; 503, elastic member; 504, mounting seat; 505, sliding member; 506, first pressing block; 507, second pressing block;

[0053] 3011, second through hole; 3012, second limiting groove;

[0054] 5021, main body; 5022, protruding plate; 5023, limiting plate;

[0055] 5041, bottom plate; 5042, enclosure plate; 5043, support plate;

[0056] 5061, first slope;

[0057] 5051, sliding section; 5052, first mating surface; 5053, second mating surface; 5054, third inclined surface; 5055, fourth inclined surface;

[0058] 5071. Second slope;

[0059] 50211, accommodating cavity; 50212, third mating surface; 50213, fourth mating surface. DETAILED DESCRIPTION

[0060] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0061] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0062] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "mounted," "connected," "connect," and "connector" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0063] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0064] The present embodiment relates to a shoulder joint fixation bracket, which includes a fixing plate 1, a first support plate 2 arranged on the fixing plate 1, a second support plate 3 hinged on the first support plate 2, a third support plate 4 hinged on the second support plate 3, and a pressing assembly 5 for limiting the relative rotation between the first support plate 2 and the second support plate 3, and between the second support plate 3 and the third support plate 4.

[0065] The fixing plate 1 is fixed to the waist of the human body by a strap, the first support plate 2 extends upward along the waist, the second support plate 3 is used to support the upper arm, and the third support plate 4 is used to support the lower arm. The pressing component 5 includes a trigger 501 and a limiter 502;

[0066] The limiting member 502 is inserted at the hinge between the first support plate 2 and the second support plate 3, and at the intersection of the second support plate 3 and the third support plate 4. When the trigger member 501 is squeezed by external force, the limiting member 502 disengages from the first support plate 2 or the second support plate 3, so that the angle of the second support plate 3 or the third support plate 4 can be adjusted.

[0067] The shoulder joint fixing bracket of this embodiment is provided with a first support plate 2, a second support plate 3 and a third support plate 4 which are hinged to each other, and by pressing the pressing component 5, the angle between the first support plate 2 and the second support plate 3 can be adjusted according to the specific needs of the patient, and the angle between the third support plate 4 and the second support plate 3 can be adjusted, which can facilitate the forearm and the upper arm to remain on the same plane, increase comfort when lying down, meet the needs of patients when walking and resting, and is simple to operate. The patient can operate it with one hand, avoiding the complicated steps of disassembling, adjusting and reassembling multiple bolts as in the prior art, and has better practical effect and convenience while playing the role of protecting the shoulder joint.

[0068] Based on the above overall introduction, an exemplary structure of the shoulder joint fixation bracket of this embodiment is as follows: Figures 1 to 6 As shown, the fixing plate 1 is an arc plate, and its shape is adapted to the shape of the human waist. The material of the fixing plate 1 can be made of metal alloy, or a waist belt can be used over a large area. A small part of the metal plate is set on the outside of the belt at the side waist position to be able to fix the first support plate 2 on the fixing plate 1.

[0069] like Figures 1 to 6 As shown, the first support plate 2 and the second support plate 3 are both rectangular thin plates. A clearance groove 302 is provided on the end of the second support plate 3 adjacent to the first support plate 2 to prevent interference between the second support plate 3 and the first support plate 2. The first support plate 2, the second support plate 3, and the third support plate 4 can be made of metal alloys, such as titanium alloys and aluminum alloys. Polymer materials commonly used in brace manufacturing can also be used to enhance patient comfort.

[0070] As a preferred embodiment, Figure 8 As shown, the pressing assembly 5 also includes an elastic member 503 disposed between the trigger member 501 and the limiting member 502. When the trigger member 501 is squeezed by an external force, the trigger member 501 drives the limiting member 502 to disengage from the first support plate 2 or the second support plate 3, and the elastic member 503 compresses and stores energy, so that the second support plate 3 can pivot relative to the first support plate 2, or the third support plate 4 can pivot relative to the second support plate 3. When the action on the trigger member 501 is released, the elastic member 503 releases energy to drive the limiting member 502 to engage with the first support plate 2 and the second support plate 3, or the limiting member 502 to engage with the second support plate 3 and the third support plate 4. By providing the elastic member 503 and the trigger member 501, the limiting member 502 can be easily inserted or removed when pressing or releasing the pressing force, and the structural setting is simple and easy to operate.

[0071] Further, as Figure 8As shown, the pressing assembly 5 further includes a mounting seat 504 and a sliding member 505 inserted into the limiting member 502. The limiting member 502 is slidably mounted at the center of the mounting seat 504. The trigger member 501 is slidably connected to the mounting seat 504. The trigger member 501 is provided with a first pressing block 506 and a second pressing block 507 that protrude toward the limiting member 502. When the trigger member 501 moves downward, the first pressing block 506 and the second pressing block 507 drive the sliding member 505 to move up and down, causing the limiting member 502 to retract or extend.

[0072] Still Figure 8 As shown, the first pressing block 506 is provided with a first inclined surface 5061, and the second pressing block 507 is provided with a second inclined surface 5071 parallel to the first inclined surface 5061. The sliding member 505 is provided with a first mating surface 5052 abutting the first inclined surface 5061 and a second mating surface 5053 abutting the second inclined surface 5071 on both sides. When the trigger member 501 moves downward, the sliding member 505 moves upward along the first inclined surface 5061 and the second inclined surface 5071. The sliding member 505 moves laterally relative to the limiting member 502, and the elastic member 503 squeezes and stores energy. When the elastic member 503 releases energy, driving the trigger member 501 upward, the sliding member 505 moves downward along the first inclined surface 5061 and the second inclined surface 5071.

[0073] In this example, by setting the first inclined surface 5061 to abut against the first mating surface 5052 and the second inclined surface 5071 to abut against the second mating surface 5053, it is possible to ensure that the sliding member 505 moves smoothly when pressed, ensure the smooth movement of the limit member 502, and ensure the stability and smoothness of the rotation adjustment of the first support plate 2 and the second support plate 3, or the second support plate 3 and the third support plate 4.

[0074] In order to facilitate patient operation, Figure 8 As shown, the mounting base 504 includes a base plate 5041 for fixing the pressing assembly 5, a surrounding plate 5042 perpendicularly disposed on the base plate 5041, and a support plate 5043 disposed at the center of the base plate 5041. The trigger member 501 abuts against the inner side of the surrounding plate 5042. The limiting member 502 extends from top to bottom through the support plate 5043 and the base plate 5041.

[0075] As Figure 8 As shown in , the limiting member 502 includes a main body 5021 and a protruding plate 5022 disposed at the upper end of the main body 5021. The protruding plate 5022 overlaps the support plate 5043. A limiting plate 5023 is disposed at the lower end of the main body 5021 to limit the rotation of the first support plate 2 and the second support plate 3, or the rotation of the second support plate 3 and the third support plate 4. The limiting plate 5023 protrudes radially outward from the main body 5021.

[0076] like Figures 1 to 6As shown, the bottom plate 5041 is a rectangular plate with mounting holes 404 provided thereon, and the pressing assembly 5 is fixed to the second support plate 3 or the third support plate 4 by bolts. Figure 8 As shown, the enclosure 5042 is annular, and the trigger 501 is a rotating cylindrical structure with an open lower end and a spherical upper end, increasing patient comfort. The stopper 502 of this embodiment is a rotating structure. The main body 5021 is a cylindrical structure, and the support plate 5043 is also an annular cylindrical structure. The outer wall of the main body 5021 is adapted to fit within the inner hole of the support plate 5043.

[0077] The support plate 5043 of this embodiment is provided to facilitate limiting the position-limiting member 502, ensuring that the position-limiting member 502 does not deviate while moving up and down along the axial direction of the support plate 5043, thereby enabling smoother removal and insertion of the position-limiting member 502. Furthermore, by abutting the trigger member 501 against the inner side of the enclosure 5042, the trigger member 501 is ensured to move radially along the enclosure 5042. This allows the position-limiting member 502 to move smoothly even when a patient applies a tilting force, preventing it from becoming stuck due to a deviation in the direction of the applied force.

[0078] Further, as Figure 8 As shown, the sliding member 505 includes a middle section and sliding sections 5051 disposed on both sides. The middle section has a third inclined surface 5054 and a fourth inclined surface 5055 that are parallel to each other. The main body 5021 is formed with a receiving cavity 50211 for accommodating the sliding member 505. The receiving cavity 50211 is formed with a third mating surface 50212 and a fourth mating surface 50213 that are parallel to the third inclined surface 5054 and the fourth inclined surface 5055, respectively.

[0079] In addition, if Figure 7 and Figure 9 As shown, the first support plate 2 has a first through-hole 201 extending along its width at one end near the second support plate 3. The edge of the first through-hole 201 is provided with a plurality of first limiting grooves 202 extending radially therefrom, communicating with the first through-hole 201. Multiple first limiting grooves 202 are arranged in a circumferential array on the first support plate 2. The second support plate 3 has a first insertion hole 303 that fits into the lower end of a limiting member 502. The limiting member 502 is simultaneously inserted into the first insertion hole 303, the first through-hole 201, and the first limiting grooves 202 to enable rotation of the first and second support plates 2 and 3.

[0080] It should be noted that rotator cuff tension plays a crucial role in surgical success and postoperative repair. Therefore, different populations and repair sites require different arm abduction angles, and rotator cuff tension can only be repaired when the desired abduction angle is reached. In this embodiment, the angle between two adjacent first limiting slots 202 can be adjusted as needed. Multiple first limiting slots 202 can be positioned to form a minimum adjustment angle, increasing the number of adjustment levels and addressing the diverse repair needs of different populations.

[0081] Preferably, if Figures 1 to 7 As shown, the third support plate 4 comprises two hingedly connected curved plates 401. The curved plates 401 are provided with connecting plates 402. The connecting plates 402 are provided with second insertion holes 403 that mate with the lower ends of the stoppers 502. The second support plate 3 is provided with a fixing block 301 that abuts against the connecting plates 402. The fixing block 301 is formed with a second through-hole 3011 and a second limiting groove 3012 extending radially from the second through-hole 3011. A plurality of second limiting grooves 3012 are arranged in a circumferential array on the fixing block 301.

[0082] In addition, the disadvantages of existing fixation brackets include excessive fixation. For example, wearing the brace too tightly will affect blood return to the limb and cause swelling of the limb distal to the brace. If the compression is not relieved in time, tissue edema will continue to worsen, leading to necrosis of muscles, blood vessels and nerves, which will become a very serious complication.

[0083] To improve comfort, such as Figure 9 As shown, each curved plate 401 is provided with a protective layer 6 on its inner side. The two curved plates 401 are driven toward or away from each other by an external force. In this embodiment, the protective layer 6 is an airbag. Furthermore, the curved plates 401 are provided with mounting holes 404 for attaching a strap. During the initial binding, the two curved plates 401 are brought together using the strap, and the airbag is then inflated to secure them. The protective layer 6 can also be made of cotton material to increase comfort for the forearm.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shoulder joint fixation bracket, characterized by: The invention comprises a fixing plate (1), a first supporting plate (2) arranged on the fixing plate (1), a second supporting plate (3) hinged on the first supporting plate (2), a third supporting plate (4) hinged on the second supporting plate (3), and a pressing assembly (5) for limiting relative rotation between the first supporting plate (2) and the second supporting plate (3), and between the second supporting plate (3) and the third supporting plate (4); The fixing plate (1) is fixed to the waist of the human body by a strap, the first support plate (2) extends upward along the waist, the second support plate (3) is used to support the upper arm, and the third support plate (4) is used to support the lower arm; The pressing component (5) includes a triggering member (501) and a limiting member (502); The limiting member (502) is inserted at the hinged joint between the first supporting plate (2) and the second supporting plate (3), and at the junction between the second supporting plate (3) and the third supporting plate (4); when the triggering member (501) is squeezed by an external force, the limiting member (502) is separated from the first supporting plate (2) or the second supporting plate (3), so that the angle of the second supporting plate (3) or the third supporting plate (4) can be adjusted.

2. The shoulder joint fixation bracket according to claim 1, characterized in that: The pressing assembly (5) further includes an elastic member (503) disposed between the trigger member (501) and the limiting member (502); When the trigger member (501) is squeezed by an external force, the trigger member (501) drives the limiting member (502) to separate from the first support plate (2) or the second support plate (3), and the elastic member (503) is compressed to store energy, so that the second support plate (3) can pivot relative to the first support plate (2), or the third support plate (4) can pivot relative to the second support plate (3); When the action on the trigger member (501) is released, the elastic member (503) releases energy to drive the limiting member (502) to be clamped on the first support plate (2) and the second support plate (3), or the limiting member (502) to be clamped on the second support plate (3) and the third support plate (4).

3. The shoulder joint fixation bracket according to claim 2, characterized in that: The pressing assembly (5) further includes a mounting seat (504) and a sliding member (505) inserted into the limiting member (502); The limiting member (502) is slidably arranged at the center of the mounting seat (504), the triggering member (501) is slidably connected to the mounting seat (504), and a first pressing block (506) and a second pressing block (507) protruding toward the limiting member (502) are provided in the triggering member (501); When the trigger member (501) moves downward, the first pressing block (506) and the second pressing block (507) drive the sliding member (505) to move up and down, so as to cause the limiting member (502) to retract or extend.

4. The shoulder joint fixation bracket according to claim 3, characterized in that: The first pressing block (506) is provided with a first inclined surface (5061), and the second pressing block (507) is provided with a second inclined surface (5071) parallel to the first inclined surface (5061); The sliding member (505) is provided with a first matching surface (5052) abutting against the first inclined surface (5061) and a second matching surface (5053) abutting against the second inclined surface (5071) on both sides respectively; When the trigger member (501) moves downward, the sliding member (505) moves upward along the first inclined surface (5061) and the second inclined surface (5071), the sliding member (505) moves laterally relative to the limiting member (502), and the elastic member (503) squeezes and stores energy; when the elastic member (503) releases energy to drive the trigger member (501) to move upward, the sliding member (505) moves downward along the first inclined surface (5061) and the second inclined surface (5071).

5. The shoulder joint fixation bracket according to claim 3, characterized in that: The mounting seat (504) comprises a bottom plate (5041) for fixing the pressing assembly (5), a surrounding plate (5042) vertically arranged on the bottom plate (5041), and a supporting plate (5043) arranged at the center of the bottom plate (5041); The trigger member (501) abuts against the inner side of the enclosure plate (5042); The limiting member (502) passes through the support plate (5043) and the bottom plate (5041) from top to bottom. The limiting member (502) includes a main body (5021) and a protruding plate (5022) provided at the upper end of the main body (5021). The protruding plate (5022) overlaps the support plate (5043). A limiting plate (5023) is provided at the lower end of the main body (5021) for limiting the rotation of the first support plate (2) and the second support plate (3), or the rotation of the second support plate (3) and the third support plate (4), and the limiting plate (5023) protrudes radially outward along the main body (5021).

6. The shoulder joint fixation bracket according to claim 5, characterized in that: The sliding member (505) comprises a middle section and sliding sections (5051) provided on both sides; The middle section has a third inclined surface (5054) and a fourth inclined surface (5055) parallel to each other; The main body (5021) is formed with a housing cavity (50211) for accommodating the sliding member (505), and the housing cavity (50211) is formed with a third mating surface (50212) and a fourth mating surface (50213) which are parallel to the third inclined surface (5054) and the fourth inclined surface (5055) respectively.

7. The shoulder joint fixation bracket according to claim 3, characterized in that: A first through hole (201) is provided at one end of the first support plate (2) close to the second support plate (3) and extends through the first through hole (201) in its width direction; a plurality of first limiting grooves (202) extending in its radial direction are provided at the edge of the first through hole (201); the first limiting grooves (202) are in communication with the first through hole (201); A plurality of the first limiting grooves (202) are arranged in a circumferential array on the first support plate (2); The second support plate (3) is provided with a first insertion hole (303) adapted to the lower end of the limiting member (502), and the limiting member (502) is simultaneously inserted into the first insertion hole (303), the first through hole (201) and the first limiting groove (202) to realize the rotation of the first support plate (2) and the second support plate (3).

8. The shoulder joint fixation bracket according to claim 1, characterized in that: The third support plate (4) comprises two hingedly connected arc-shaped plates (401), the arc-shaped plates (401) are provided with a connecting plate (402), and the connecting plate (402) is provided with a second plug hole (403) adapted to the lower end of the limiting member (502); The second support plate (3) is provided with a fixing block (301) abutting against the connecting plate (402), and the fixing block (301) is formed with a second through hole (3011) and a second limiting groove (3012) extending radially along the second through hole (3011); A plurality of the second limiting grooves (3012) are arranged in a circular array on the fixing block (301).

9. The shoulder joint fixation bracket according to claim 8, characterized in that: A protective layer (6) is provided on the inner side of each of the arc-shaped plates (401), and the two arc-shaped plates (401) are driven to move closer to or farther from each other by an external force; The arc-shaped plate (401) is provided with a mounting hole (404), and the mounting hole (404) is used for mounting a strap.

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