A shoulder joint abduction angle adjustable fixing brace

Abstract

The application discloses a fixing support with adjustable abduction angle of shoulder joint, and relates to the technical scheme that the waist and abdomen fixing mechanism is used for fixing at the waist and abdomen of a patient, the shoulder fixing mechanism is used for fixing at the shoulder of the patient, and the upper arm fixing mechanism is used for fixing on the upper arm of the patient, the upper arm fixing mechanism and the shoulder fixing mechanism are rotationally connected together, and the rotation axis is coincident with the abduction rotation axis of the upper arm; through the rotation of the upper arm fixing mechanism on the shoulder fixing mechanism, the abduction angle of the shoulder joint can be adjusted, so that the problem of the stiffness of the shoulder joint of the patient is not caused easily.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shoulder joint rehabilitation, and more particularly to a fixed brace with adjustable abduction angle of shoulder joint. BACKGROUND

[0002] The shoulder joint is a part of the human body that is very prone to injury. In recent years, the number of people with shoulder joint injuries has been on the rise. The treatment of shoulder joint injuries mostly involves fixation and rehabilitation. Currently, when the shoulder joint is being rehabilitated, a plaster bandage is mostly used to fix the shoulder joint. Once the plaster bandage is molded, the angle cannot be adjusted, and the plaster bandage also has the problem of complex manufacturing process.

[0003] Long-term fixation of the shoulder joint can easily lead to stiffness of the patient's near joint. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a fixed brace with adjustable abduction angle of shoulder joint, which can adjust the abduction angle of the shoulder joint through the rotation of the upper arm fixing mechanism on the shoulder fixing mechanism, so as to avoid the problem of stiffness of the patient's shoulder joint.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a fixed brace with adjustable abduction angle of shoulder joint, comprising a waist and abdomen fixing mechanism, the waist and abdomen fixing mechanism is used for fixing at the waist and abdomen of the patient;

[0006] a shoulder fixing mechanism, the shoulder fixing mechanism is used for fixing at the shoulder of the patient;

[0007] and an upper arm fixing mechanism, the upper arm fixing mechanism is used for fixing on the upper arm of the patient, the upper arm fixing mechanism and the shoulder fixing mechanism are rotatably connected together, and the rotation axis coincides with the abduction rotation axis of the upper arm.

[0008] The present application is further provided as follows: the waist and abdomen fixing mechanism comprises a fixed half ring, the fixed half ring can be attached to one side of the waist and abdomen;

[0009] and a winding bandage, two ends of the winding bandage are connected to two ends of the fixed half ring to realize fixation of the fixed half ring at the waist and abdomen.

[0010] The present application is further provided as follows: the upper arm fixing mechanism comprises a fixed plate, the fixed plate is provided with two and clamped on both sides of the upper arm respectively;

[0011] and a connecting belt, the connecting belt is provided with a plurality of connecting belts, the connecting belt is arranged around the upper arm, and two ends of the connecting belt are connected to each other to be tightly bound outside the upper arm.

[0012] Two sides of the two fixing plates away from each other are provided with connecting holes corresponding to the plurality of connecting belts respectively, and the connecting belts pass through the two connecting holes on the two fixing plates respectively.

[0013] The shoulder fixing mechanism further comprises a base plate, a connecting rod fixedly connected to the bottom of the base plate, and a fixed half-ring connected to one end of the bottom of the connecting rod.

[0014] The shoulder fixing mechanism further comprises two clamping plates sliding on the base plate along the length direction of the base plate to approach or move away from each other, the clamping plates being perpendicular to the sliding direction thereof, and the two clamping plates being capable of clamping the front side and the rear side of the shoulder respectively.

[0015] The shoulder fixing mechanism further comprises a pressing plate arranged above the two clamping plates and capable of pressing on the top of the shoulder, and two fixing belts on the two sides of the pressing plate respectively connecting ears on the two clamping plates.

[0016] The shoulder fixing mechanism further comprises a connecting ring fixedly connected to the top of the clamping plate, and one end of the fixing belt on the side of the pressing plate being fixedly connected to the pressing plate and the other end extending upward after passing through the connecting ring downward and being fixedly connected to the pressing plate, the fixing belt being in a taut state to press the pressing plate on the top of the shoulder.

[0017] The shoulder fixing mechanism further comprises a limiting plate fixedly connected to the top of the base plate.

[0018] The limiting plate is provided with two limiting holes penetrating the limiting plate along the length direction of the base plate, and the clamping plate is provided with two limiting rods fixedly connected to the limiting plate respectively.

[0019] The clamping plate is provided with a sliding groove arranged along the length direction of the base plate, the cross section of the sliding groove being in a convex shape perpendicular to the length direction of the sliding groove, the sliding groove being provided with a sliding block fixedly connected to the bottom of the clamping plate and matched with the sliding groove, the sliding groove being provided with a through groove with a width smaller than that of the bottom of the sliding groove, the length direction of the through groove being arranged along the length direction of the sliding groove, the bottom of the sliding block being fixedly connected with a threaded rod vertically penetrating the through groove, and the bottom of the threaded rod being threadedly connected with a fixing disc capable of pressing on the bottom of the base plate.

[0020] The shoulder fixing mechanism further comprises an armpit pad arranged above the limiting plate, the top of the armpit pad being flexible and the bottom of the armpit pad being rigid, and the top of the armpit pad being arranged in an arc shape to match the armpit.

[0021] The bottom of the armpit pad is rotatably connected with an adjusting rod vertically penetrating the limiting plate and the base plate, and the adjusting rod is threadedly connected to the base plate.

[0022] The bottom of the armpit pad is fixedly connected with two guide rods vertically penetrating through the limiting plate and the base plate, and the guide rods can slide up and down on the limiting plate and the base plate.

[0023] The application is further provided with: two fixing plates are rotatably connected to the two clamping plates at one end close to the clamping plates, and the fixing plates are rotatably connected to the clamping plates through the connecting mechanisms.

[0024] The application is further provided with: the connecting mechanism comprises a fixed shaft, and the axis of the fixed shaft is perpendicular to the clamping plate.

[0025] A rotating ring is sleeved on and rotatably connected to the fixed shaft, and the rotating ring is fixedly connected to the fixing plate.

[0026] A limiting ring is sleeved on the fixed shaft, and a sliding groove is arranged on the fixed shaft along the axis direction of the fixed shaft, a sliding block is fixedly connected to the limiting ring and can slide in the sliding groove along the length direction of the sliding groove, and the limiting ring slides on the fixed shaft along the axis direction of the fixed shaft.

[0027] A plurality of meshing teeth are fixedly connected to the limiting ring on the side close to the rotating ring and the rotating ring on the side close to the limiting ring, and the meshing teeth on the limiting ring can mesh with the meshing teeth on the rotating ring.

[0028] The application is further provided with: the two connecting mechanisms are respectively a first connecting mechanism and a second connecting mechanism, the limiting ring in the first connecting mechanism is located on the side of the rotating ring away from the second connecting mechanism, and the limiting ring in the second connecting mechanism is located on the side of the rotating ring close to the first connecting mechanism.

[0029] Two fixed rods are fixedly connected to the two sides of the base plate, and a moving groove is arranged on the side of the two fixed rods away from each other and penetrates through the fixed rods along the length direction of the base plate, two moving rods are arranged in the two moving grooves and can slide in the moving grooves along the length direction of the moving grooves, and two vertical rods are fixedly connected to the two sides of the limiting ring and are fixedly connected to the two moving rods.

[0030] A groove is formed on the side of the moving groove close to the base plate, the distance between the top and the bottom of the groove is greater than the distance between the top and the bottom of the moving groove, the length direction of the groove is parallel to the length direction of the moving groove, a protruding block is arranged in the groove and can slide in the groove along the length direction of the groove, and a spring is arranged in the groove on the side of the protruding block close to the first connecting mechanism and is in a compressed state.

[0031] Compared with the prior art, the application has the following beneficial effects: the abduction angle of the shoulder joint can be adjusted through the rotation of the upper arm fixing mechanism on the shoulder fixing mechanism, so that the problem of shoulder joint stiffness of the patient is not easily caused. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A schematic view of the overall structure of the embodiment;

[0033] Figure 2 A schematic view of the embodiment; Figure 1 A schematic view of the embodiment;

[0034] Figure 3 A schematic view of the embodiment; Figure 1 A schematic view of the embodiment;

[0035] Figure 4 A schematic view of the embodiment; Figure 1 A schematic view of the embodiment;

[0036] Figure 5 A schematic view of the shoulder fixing mechanism of the embodiment;

[0037] Figure 6 A schematic view of the embodiment;

[0038] Figure 7 A schematic view of the embodiment; Figure 6 A schematic view of the embodiment;

[0039] Figure 8 A schematic view of the shoulder fixing mechanism of the embodiment;

[0040] Figure 9 A schematic view of the embodiment;

[0041] Figure 10 A schematic view of the embodiment; Figure 9 A schematic view of the embodiment;

[0042] Figure 11 A schematic view of the embodiment;

[0043] Figure 12 A schematic view of the embodiment; Figure 11 A schematic view of the embodiment;

[0044] Figure 13 A schematic view of the embodiment.

[0045] In the figure: 1, waist and abdomen fixing mechanism; 11, fixed half ring; 12, winding bandage; 2, shoulder fixing mechanism; 21, base plate; 211, sliding groove; 212, through groove; 22, connecting rod; 23, clamping plate; 231, sliding block; 232, threaded rod; 233, fixed disc; 234, limiting rod; 24, pressing plate; 25, fixing belt; 26, connecting ring; 27, limiting plate; 271, limiting hole; 28, armpit pad; 281, adjusting rod; 3, upper arm fixing mechanism; 31, fixed plate; 311, connecting hole; 32, connecting belt; 4, connecting mechanism; 41, fixed shaft; 411, sliding groove; 42, rotating ring; 43, limiting ring; 431, sliding block; 44, meshing tooth; 45, vertical rod; 46, fixed rod; 461, moving groove; 462, groove; 47, moving rod; 48, protrusion; 49, spring. DETAILED DESCRIPTION

[0046] In order to make the personnel in the art better understand the technical solutions of the present application, the technical solutions of the present application will be described clearly and completely below in combination with the drawings of the present application. Other similar embodiments obtained by the personnel in the art without creative labor on the basis of the embodiments in the present application shall all belong to the scope of protection of the present application. In addition, the direction words mentioned in the following embodiments, such as “up”, “down”, “left”, “right” and the like are only the directions of the drawings. Therefore, the direction words used are used for illustration and not for limiting the present application.

[0047] The present application will be further described below in combination with the drawings and preferred embodiments.

[0048] Embodiment: A shoulder joint abduction angle adjustable fixing brace, referring to the drawings Figure 1 -Appendix Figure 13 , including waist and abdomen fixing mechanism 1, shoulder fixing mechanism 2 and upper arm fixing mechanism 3, the waist and abdomen fixing mechanism 1 is used for fixing at the waist and abdomen of the patient; the shoulder fixing mechanism 2 is used for fixing at the shoulder of the patient; the upper arm fixing mechanism 3 is used for fixing on the upper arm of the patient, the upper arm fixing mechanism 3 and the shoulder fixing mechanism 2 are rotationally connected together, and the rotation axis coincides with the abduction rotation axis of the upper arm.

[0049] Through the rotation of the upper arm fixing mechanism 3 on the shoulder fixing mechanism 2, the abduction angle of the shoulder joint can be adjusted, so that the problem of the patient's shoulder joint appearing stiff is not easy to cause.

[0050] Specifically, the waist and abdomen fixing mechanism 1 includes fixed half ring 11 and winding bandage 12, the fixed half ring 11 can be fitted on one side of the waist and abdomen; the two ends of the winding bandage 12 are respectively connected to the two ends of the fixed half ring 11 to realize the fixation of the fixed half ring 11 at the waist and abdomen. Specifically, the winding bandage 12 is provided with a plurality of winding bandages 12, and the plurality of winding bandages 12 are arranged along the vertical direction.

[0051] The fixed half ring 11 is clamped on the waist and abdomen side, and then fixed on the waist and abdomen by the plurality of winding belts 12.

[0052] Specifically, the upper arm fixing mechanism 3 comprises fixing plates 31 and connecting belts 32, the fixing plates 31 are provided with two and clamped on both sides of the upper arm respectively; the connecting belts 32 are provided with a plurality of, the connecting belts 32 are arranged around the upper arm and the two ends of the connecting belts 32 are connected to each other to be tightened outside the upper arm; the two fixing plates 31 are provided with connecting holes 311 corresponding to the plurality of connecting belts 32 on the two sides away from each other, and the connecting belts 32 pass through the two connecting holes 311 on the two fixing plates 31 respectively.

[0053] Specifically, the shoulder fixing mechanism 2 comprises a base plate 21, clamping plates 23 and a pressing plate 24, the base plate 21 is fixedly connected with a connecting rod 22 at the bottom, one end of the bottom of the connecting rod 22 is connected with the fixed half ring 11, the base plate 21 is horizontally arranged and passes through from below the pressing nest along the length direction of itself; the clamping plates 23 are provided with two, the two clamping plates 23 slide on the base plate 21 along the length direction of the base plate 21 to approach and move away from each other, the clamping plates 23 are perpendicular to the sliding direction of themselves, and the two clamping plates 23 can be clamped on the front side and the back side of the shoulder respectively; the pressing plate 24 is arranged above the two clamping plates 23 and can be pressed on the top of the shoulder, and the two sides of the pressing plate 24 are connected with the two clamping plates 23 through fixing belts 25 respectively.

[0054] The distance between the front side and the back side of the shoulder of different patients is different due to the difference in their body shapes, in order to enable the brace to be used by patients with different body shapes, the clamping plates 23 are arranged to slide on the base plate 21, so that the distance between the two clamping plates 23 can be adjusted according to the thickness of the shoulder of the patient, that is, according to the distance between the front side and the back side of the shoulder of the patient.

[0055] Specifically, the clamping plates 23 are fixedly connected with connecting rings 26 at the top, one end of the fixing belts 25 on the side edges of the pressing plate 24 is fixedly connected with the pressing plate 24, and the other end extends upward after passing through the connecting rings 26 downward, and is fixedly connected with the pressing plate 24, the fixing belts 25 are in a taut state to press the pressing plate 24 on the top of the shoulder.

[0056] Specifically, the base plate 21 is fixedly connected with a limiting plate 27 at the top; the limiting plate 27 is provided with two limiting holes 271 penetrating the limiting plate 27 along the length direction of the base plate 21 at the bottom, and the clamping plates 23 are fixedly connected with limiting rods 234 respectively inserted into the two limiting holes 271 on the side close to the limiting plate 27. Through the arrangement of the limiting rods 234, the stability of the connection between the clamping plates 23 and the base plate 21 can be improved.

[0057] Specifically, the bottom of the clamping plate 23 is provided with a sliding groove 211 arranged along the length direction of the base plate 21, the cross section of the sliding groove 211 perpendicular to the length direction of the sliding groove 211 is arranged in a convex shape, the sliding groove 211 is provided with a sliding block 231 fixedly connected to the bottom of the clamping plate 23 and matched with the sliding groove 211, the bottom of the sliding groove 211 is provided with a through groove 212 with a width smaller than that of the bottom of the sliding groove 211, the length direction of the through groove 212 is arranged along the length direction of the sliding groove 211, the bottom of the sliding block 231 is fixedly connected with a threaded rod 232 vertically penetrating through the through groove 212, and the bottom of the threaded rod 232 is threadedly connected with a fixing disc 233 capable of being pressed against the bottom of the base plate 21.

[0058] The arrangement of the sliding groove 211 and the sliding block 231 enables the clamping plate 23 to slide along the length direction of the base plate 21, and the arrangement of the threaded rod 232 and the fixing disc 233 enables the clamping plate 23 to be fixed on the base plate 21.

[0059] Specifically, the upper portion of the limiting plate 27 is provided with an armpit pad 28, the top of the armpit pad 28 is flexible, the bottom of the armpit pad 28 is rigid, the top of the armpit pad 28 is arranged in an arc shape to match the armpit, the bottom of the armpit pad 28 is rotatably connected with an adjusting rod 281 vertically penetrating through the limiting plate 27 and the base plate 21, the adjusting rod 281 is threadedly connected to the base plate 21, and the bottom of the armpit pad 28 is fixedly connected with two guide rods vertically penetrating through the limiting plate 27 and the base plate 21, the guide rods being capable of sliding up and down on the limiting plate 27 and the base plate 21.

[0060] The arrangement of the adjusting rod 281 enables the distance between the armpit pad 28 and the base plate 21 to be adjusted, so that the height of the rotation axis of the fixing plate 31 on the shoulder fixing mechanism 2 can be adjusted, thereby ensuring that the rotation axis of the fixing plate 31 coincides with the rotation axis of the upper arm abduction according to the body type of a person.

[0061] Specific, two fixed plate 31 close to the clamping plate 23 one end is respectively connected to the two clamping plate 23, fixed plate 31 through the connecting mechanism 4 is rotatably connected to the clamping plate 23. Connecting mechanism 4 includes fixed shaft 41, rotating ring 42, limit ring 43 and meshing teeth 44, the axis of the fixed shaft 41 is perpendicular to the clamping plate 23;Rotating ring 42 is set on the fixed shaft 41 outside and is rotatably connected to the fixed shaft 41, rotating ring 42 and fixed plate 31 are fixedly connected together;Limit ring 43 is set on the fixed shaft 41 outside, the fixed shaft 41 is provided with sliding groove 411 along the fixed shaft 41 axis direction, the limit ring 43 is fixedly connected with sliding block 431 which is matched with sliding groove 411 and can slide in the sliding groove 411 along the length direction of sliding groove 411, the limit ring 43 slides along the axis direction of the fixed shaft 41 outside the fixed shaft 41;The side close to the rotating ring 42 of the limit ring 43 and the side close to the limit ring 43 of the rotating ring 42 are fixedly connected with a plurality of meshing teeth 44 which are evenly arranged around the axis of the fixed shaft 41, the meshing teeth 44 on the limit ring 43 can be engaged with the meshing teeth 44 on the rotating ring 42.

[0062] When the meshing teeth 44 on the limit ring 43 and the meshing teeth 44 on the rotating ring 42 are engaged with each other, the rotating ring 42 is fixed on the fixed shaft 41 because the limit ring 43 cannot rotate on the fixed shaft 41, so as to fix the outer angle of the fixed plate 31, and when the limit ring 43 is pulled to make the meshing teeth 44 on the limit ring 43 and the meshing teeth 44 on the rotating ring 42 disengage with each other, the limit ring 43 loses the limit to the rotating ring 42, so that the rotating ring 42 can rotate smoothly on the fixed shaft 41.

[0063] Specific, two connecting mechanism 4 are respectively set as first connecting mechanism 4 and second connecting mechanism 4, the limit ring 43 in the first connecting mechanism 4 is located on the side away from the second connecting mechanism 4 of the rotating ring 42, and the limit ring 43 in the second connecting mechanism 4 is located on the side close to the first connecting mechanism 4 of the rotating ring 42;The base plate 21 is fixedly connected with two fixed rods 46 on both sides, the side away from each other of the two fixed rods 46 is provided with a moving groove 461 penetrating through the fixed rod 46 along the length direction of the base plate 21, the two moving grooves 461 are provided with two moving rods 47 which can slide in the moving grooves 461 along the length direction of the moving grooves 461, the limit ring 43 is fixedly connected with two vertical rods 45 on both sides, and the two vertical rods 45 are fixedly connected together with the two moving rods 47;The moving groove 461 is provided with a groove 462 on the side close to the base plate 21, the distance between the top and bottom of the groove 462 is greater than the distance between the top and bottom of the moving groove 461, the length direction of the groove 462 is parallel to the length direction of the moving groove 461, the groove 462 is provided with a protruding block 48 which slides in the groove 462 along the length direction of the groove 462, and the protruding block 48 is provided with a spring 49 which is in a compressed state and located in the groove 462 on the side close to the first connecting mechanism 4.

[0064] By setting the relative position of the limiting ring 43 and the rotating ring 42 in the first connecting mechanism 4 and the second connecting mechanism 4, the two limiting rings 43 in the two connecting mechanisms 4 can be loosened at the same time by moving in one direction, and by setting the vertical rod 45 and the moving rod 47, the two limiting rings 43 are connected together to realize the synchronous movement of the two limiting rings 43. Specifically, by setting the protrusion 48 and the spring 49, when not subjected to external force, the engaging teeth 44 on the limiting ring 43 and the engaging teeth 44 on the rotating ring 42 can be in engagement under the elastic force of the spring 49.

[0065] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A fixed brace with adjustable shoulder abduction angle, characterized by: It comprises a waist and abdomen fixing mechanism (1), wherein the waist and abdomen fixing mechanism (1) is used for fixing to the waist and abdomen of a patient; A shoulder fixing mechanism (2), the shoulder fixing mechanism (2) being used for fixing to the patient's shoulder; and an upper arm fixing mechanism (3), the upper arm fixing mechanism (3) being used to be fixed on the patient's upper arm, the upper arm fixing mechanism (3) being rotatably connected to the shoulder fixing mechanism (2), with the rotation axis coinciding with the abduction rotation axis of the upper arm; The upper arm fixing mechanism (3) comprises a fixing plate (31), two fixing plates (31) are provided and are respectively clamped on both sides of the upper arm; The shoulder fixing mechanism (2) comprises a base plate (21), the bottom of the base plate (21) is fixedly connected to a connecting rod (22), one end of the bottom of the connecting rod (22) is connected to the waist and abdomen fixing mechanism (1), the base plate (21) is arranged horizontally, and the base plate (21) passes through the lower armpit along its own length direction; A clamping plate (23), wherein two clamping plates (23) are provided, and the two clamping plates (23) slide on the base plate (21) along the length direction of the base plate (21) to approach and move away from each other, and the clamping plates (23) are perpendicular to their own sliding directions, and the two clamping plates (23) can be clamped on the front side and the rear side of the shoulder respectively; The top of the base plate (21) is fixedly connected to a limit plate (27); The bottom of the limiting plate (27) is provided with two limiting holes (271) penetrating the limiting plate (27) along the length direction of the base plate (21); the clamping plate (23) is fixedly connected to a side close to the limiting plate (27) with limiting rods (234) respectively inserted into the two limiting holes (271); An armpit pad (28) is provided above the limiting plate (27), and an adjusting rod (281) vertically passing through the limiting plate (27) and the base plate (21) is rotatably connected to the bottom of the armpit pad (28), and the adjusting rod (281) is threadedly connected to the base plate (21); One end of the two fixing plates (31) close to the clamping plate (23) is rotatably connected to the two clamping plates (23), and the fixing plates (31) are rotatably connected to the clamping plates (23) via a connecting mechanism (4); The connecting mechanism (4) comprises a fixed shaft (41), the axis of the fixed shaft (41) being perpendicular to the clamping plate (23); a rotating ring (42), wherein the rotating ring (42) is sleeved outside the fixed shaft (41) and is rotatably connected to the fixed shaft (41), and the rotating ring (42) is fixedly connected to the fixed plate (31); A limiting ring (43) is sleeved on the outside of the fixed shaft (41); a sliding groove (411) is provided on the outside of the fixed shaft (41) along the axial direction of the fixed shaft (41); a sliding block (431) is fixedly connected to the limiting ring (43) and is matched with the sliding groove (411) and can slide in the sliding groove (411) along the length direction of the sliding groove (411); the limiting ring (43) slides outside the fixed shaft (41) along the axial direction of the fixed shaft (41); and meshing teeth (44), wherein the side of the limiting ring (43) close to the rotating ring (42) and the side of the rotating ring (42) close to the limiting ring (43) are both fixedly connected with a plurality of meshing teeth (44) evenly arranged around the axis of the fixed shaft (41), and the plurality of meshing teeth (44) on the limiting ring (43) can mesh with the plurality of meshing teeth (44) on the rotating ring (42).

2. The fixation brace with adjustable shoulder abduction angle according to claim 1, characterized in that: The waist and abdomen fixing mechanism (1) comprises a fixing half ring (11), and the fixing half ring (11) can be attached to one side of the waist and abdomen; and a wrapping band (12), wherein two ends of the wrapping band (12) are respectively connected to two ends of the fixing half ring (11) to achieve fixation of the fixing half ring (11) at the waist and abdomen.

3. The fixation brace with adjustable shoulder abduction angle according to claim 2, characterized in that: The upper arm fixing mechanism (3) further comprises a connecting belt (32), wherein a plurality of connecting belts (32) are provided, the connecting belts (32) are arranged around the upper arm, and the two ends of the connecting belts (32) are connected to each other so as to be fastened to the outside of the upper arm; Both sides of the two fixing plates (31) that are away from each other are provided with connection holes (311) corresponding to a plurality of connection belts (32), and the connection belts (32) pass through the two connection holes (311) on the two fixing plates (31) respectively.

4. The fixation brace with adjustable shoulder abduction angle according to claim 3, characterized in that: The shoulder fixing mechanism (2) further comprises a pressing plate (24), which is arranged above the two clamping plates (23) and can be pressed tightly against the top of the shoulder. Both sides of the pressing plate (24) are connected to the two clamping plates (23) via fixing belts (25).

5. The fixation brace with adjustable shoulder abduction angle according to claim 4, characterized in that: The top of the clamping plate (23) is fixedly connected with a connecting ring (26), one end of a fixing belt (25) on the side of the pressing plate (24) is fixedly connected to the pressing plate (24), and the other end passes downward through the connecting ring (26) and then extends upward and is fixed to the pressing plate (24), and the fixing belt (25) is in a tightened state to press the pressing plate (24) against the top of the shoulder.

6. The fixation brace with adjustable shoulder abduction angle according to claim 5, characterized in that: The bottom of the clamping plate (23) is provided with a slide groove (211) arranged along the length direction of the base plate (21), and the cross section of the slide groove (211) perpendicular to its own length direction is arranged in a convex shape. A slider (231) fixedly connected to the bottom of the clamping plate (23) and matched with the slide groove (211) is arranged in the slide groove (211), and the bottom of the slide groove (211) is provided with a through groove (212) with a width smaller than the width of the bottom of the slide groove (211), and the length direction of the through groove (212) is arranged along the length direction of the slide groove (211), and the bottom of the slider (231) is fixedly connected with a threaded rod (232) vertically passing through the through groove (212), and the bottom of the threaded rod (232) is threadedly connected with a fixed plate (233) capable of being pressed against the bottom of the base plate (21).

7. The fixation brace with adjustable shoulder abduction angle according to claim 6, characterized in that: The top of the armpit pad (28) is flexible and the bottom is rigid. The top of the armpit pad (28) is arranged in an arc shape to match the armpit; The bottom of the armpit pad (28) is fixedly connected with two guide rods that vertically pass through the limiting plate (27) and the base plate (21), and the guide rods can slide up and down on the limiting plate (27) and the base plate (21).

8. The fixation brace with adjustable shoulder abduction angle according to claim 7, characterized in that: The two connecting mechanisms (4) are respectively provided as a first connecting mechanism (4) and a second connecting mechanism (4); the limiting ring (43) in the first connecting mechanism (4) is located on a side of the rotating ring (42) away from the second connecting mechanism (4); and the limiting ring (43) in the second connecting mechanism (4) is located on a side of the rotating ring (42) close to the first connecting mechanism (4); Two fixed rods (46) are fixedly connected to both sides of the base plate (21); a movable groove (461) is provided on the side of the two fixed rods (46) that is away from each other and passes through the fixed rods (46) along the length direction of the base plate (21); two movable rods (47) are provided in the two movable grooves (461) and can slide in the two movable grooves (461) along the length direction of the movable grooves (461); two vertical rods (45) are fixedly connected to both sides of the limiting ring (43); the two vertical rods (45) are fixedly connected to the two movable rods (47) respectively; A groove (462) is provided on a side of the movable groove (461) close to the base plate (21); the distance between the top and bottom of the groove (462) is greater than the distance between the top and bottom of the movable groove (461); the length direction of the groove (462) is parallel to the length direction of the movable groove (461); a protrusion (48) is provided in the groove (462) and slides in the groove (462) along the length direction of the groove (462); a spring (49) is provided in the groove (462) and is in a compressed state on a side of the protrusion (48) close to the first connecting mechanism (4).

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