Fixing brace with adjustable shoulder joint abduction angle

Abstract

According to the technical scheme, the shoulder joint abduction angle adjustable fixing brace is characterized by comprising a waist and abdomen fixing mechanism, and the waist and abdomen fixing mechanism is used for being fixed to the waist and abdomen of a patient; the shoulder fixing mechanism is used for being fixed to the shoulders of a patient; the upper arm fixing mechanism is used for being fixed to the upper arm of a patient, the upper arm fixing mechanism is rotationally connected with the shoulder fixing mechanism, and the rotating axis of the upper arm fixing mechanism coincides with the abduction rotating axis of the upper arm; through rotation of the upper arm fixing mechanism on the shoulder fixing mechanism, the abduction angle of the shoulder joint can be adjusted, and therefore the problem that the shoulder joint of a patient is stiff is not prone to being caused.

Description

Technical Field

[0001] The present invention relates to the technical field of shoulder joint rehabilitation, and more specifically, to a fixed brace with adjustable shoulder joint abduction angle. Background Art

[0002] The shoulder joint is a part of the human body that is very vulnerable 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 requires fixation and rehabilitation. At present, when recovering from shoulder joint injuries, most people need to use plaster bandages to fix the shoulder joint. After the plaster bandage is fixed once, the angle cannot be adjusted and the plaster bandage also has the problem of complicated production process.

[0003] Long-term immobilization of the shoulder joint can easily lead to proximal joint stiffness in patients. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a fixation brace with adjustable shoulder abduction angle, which can adjust the abduction angle of the shoulder joint through the rotation of the upper arm fixation mechanism on the shoulder fixation mechanism, thereby not easily causing stiffness of the patient's shoulder joint.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixation brace with adjustable shoulder abduction angle, comprising a waist and abdomen fixation mechanism, wherein the waist and abdomen fixation mechanism is used to be fixed at the waist and abdomen of a patient; A shoulder fixing mechanism, wherein the shoulder fixing mechanism is used to be fixed on the patient's shoulder; And an upper arm fixing mechanism, the upper arm fixing mechanism is used to be fixed on the patient's upper arm, the upper arm fixing mechanism is rotatably connected with the shoulder fixing mechanism, and the rotation axis coincides with the abduction rotation axis of the upper arm.

[0006] The present invention is further configured as follows: the waist and abdomen fixing mechanism comprises a fixing half ring, and the fixing half ring can be fitted on one side of the waist and abdomen; And a wrapping band, the two ends of which are respectively connected to the two ends of the fixing half ring to fix the fixing half ring at the waist and abdomen.

[0007] The present invention is further configured as follows: the upper arm fixing mechanism comprises a fixing plate, two fixing plates are provided and are clamped on both sides of the upper arm respectively; and a connecting belt, wherein a plurality of connecting belts are provided, the connecting belts are arranged around the upper arm and the two ends of the connecting belts are connected to each other so as to be fastened outside the upper arm; Both sides of the two fixing plates which are far away from each other are provided with connection holes which respectively correspond to a plurality of connection belts, and the connection belts respectively pass through the two connection holes on the two fixing plates.

[0008] The present invention is further configured as follows: the shoulder fixing mechanism comprises a base plate, a connecting rod is fixedly connected to the bottom of the base plate, one end of the bottom of the connecting rod is connected to the fixed half ring, the base plate is horizontally arranged, and the base plate passes under the pressure pocket along its own length direction; A clamping plate, wherein two clamping plates are provided, and the two clamping plates slide on the base plate along the length direction of the base plate to approach and move away from each other, and the clamping plates are perpendicular to their own sliding directions, and the two clamping plates can be clamped on the front side and the rear side of the shoulder respectively; And a pressing plate, which is arranged above the two clamping plates and can be pressed tightly on the top of the shoulder, and two sides of the pressing plate are respectively connected to the two clamping plates through fixing belts.

[0009] The present invention is further configured as follows: a connecting ring is fixedly connected to the top of the clamping plate, one end of a fixing belt on the side of the pressure plate is fixedly connected to the pressure plate, and the other end passes downward through the connecting ring and then extends upward and is fixed to the pressure plate, and the fixing belt is in a tensioned state to press the pressure plate against the top of the shoulder.

[0010] The present invention is further configured as follows: the top of the base plate is fixedly connected to a limit plate; The bottom of the limit plate is provided with two limit holes penetrating the limit plate along the length direction of the base plate, and the clamping plate is fixedly connected to a limit rod inserted into the two limit holes respectively on one side close to the limit plate; A slide groove is arranged along the length direction of the base plate at the bottom of the clamping plate. The cross-section of the slide groove perpendicular to its own length direction is convex in shape. A slider fixedly connected to the bottom of the clamping plate and cooperating with the slide groove is arranged in the slide groove. A through groove with a width smaller than the width of the bottom of the slide groove is arranged at the bottom of the slide groove. The length direction of the through groove is arranged along the length direction of the slide groove. A threaded rod vertically passing through the through groove is fixedly connected to the bottom of the slider. A fixed plate that can be pressed tightly against the bottom of the base plate is threadedly connected to the bottom of the threaded rod.

[0011] The present invention is further configured as follows: an armpit pad is arranged above the limiting plate, the top of the armpit pad is flexible, the bottom is rigid, and the top of the armpit pad is arranged in an arc shape to match the armpit; The bottom of the armpit pad is rotatably connected to an adjustment rod that vertically passes through the limiting plate and the base plate, and the adjustment rod is threadedly connected to the base plate; The bottom of the armpit pad is fixedly connected with two guide rods which vertically pass 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.

[0012] The present invention is further configured as follows: one end of the two fixing plates close to the clamping plate is rotatably connected to the two clamping plates respectively, and the fixing plate is rotatably connected to the clamping plate via a connecting mechanism.

[0013] The present invention is further configured as follows: the connection mechanism comprises a fixed shaft, the axis of the fixed shaft being perpendicular to the clamping plate; A rotating ring, which is sleeved outside the fixed shaft and rotatably connected to the fixed shaft, and the rotating ring is fixedly connected to the fixed plate; A limiting ring, wherein the limiting ring is sleeved outside the fixed shaft, a sliding groove is arranged outside the fixed shaft along the axis direction of the fixed shaft, a sliding block is fixedly connected inside the limiting ring and matches the sliding groove and can slide in the sliding groove along the length direction of the sliding groove, and the limiting ring slides outside the fixed shaft along the axis direction of the fixed shaft; And meshing teeth, the side of the limiting ring close to the rotating ring and the side of the rotating ring close to the limiting ring are fixedly connected with a plurality of meshing teeth evenly arranged around the axis of the fixed shaft, and the plurality of meshing teeth on the limiting ring can mesh with the plurality of meshing teeth on the rotating ring.

[0014] The present invention is further configured as follows: the two connection mechanisms are respectively configured as a first connection mechanism and a second connection mechanism, the limit ring in the first connection mechanism is located on the side of the rotating ring away from the second connection mechanism, and the limit ring in the second connection mechanism is located on the side of the rotating ring close to the first connection mechanism; Two fixed rods are fixedly connected at both sides of the base plate, and a movable groove penetrating the fixed rod along the length direction of the base plate is arranged on the side of the two fixed rods away from each other, and the two movable rods that can slide in the two movable grooves along the length direction of the movable groove are arranged in the two movable grooves, and two vertical rods are fixedly connected at both sides of the limit ring, and the two vertical rods are respectively fixedly connected to the two movable rods; A groove is provided on the side of the movable 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 movable groove, the length direction of the groove is parallel to the length direction of the movable groove, a protrusion is provided in the groove and slides along the length direction of the groove, and a spring is provided in the groove and in a compressed state on the side of the protrusion close to the first connecting mechanism.

[0015] In summary, compared with the prior art, the present invention has the following beneficial effects: the present invention can adjust the abduction angle of the shoulder joint by rotating the upper arm fixing mechanism on the shoulder fixing mechanism, thereby not easily causing stiffness of the patient's shoulder joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an embodiment; Figure 2 for Figure 1 A magnified schematic diagram of part A; Figure 3 for Figure 1 An enlarged schematic diagram of part B; Figure 4 for Figure 1 An enlarged schematic diagram of part C of FIG. Figure 5 is a schematic diagram of a shoulder fixing mechanism of an embodiment; Figure 6 A schematic diagram of a slider is shown in the embodiment; Figure 7 for Figure 6 An enlarged schematic diagram of the D portion; Figure 8 is a cross-sectional view of a shoulder fixing mechanism of an embodiment; Fig. 9 A schematic diagram of a limit rod is shown in the embodiment; Fig.10 for Fig. 9 An enlarged schematic diagram of part E of FIG. Fig.11 is a cross-sectional view of a base plate of an embodiment; Fig.12 for Fig.11 Schematic diagram of the enlarged F part; Fig.13 The figure is a schematic diagram of a sliding groove and a sliding block according to an embodiment.

[0017] In the figure: 1, waist and abdomen fixing mechanism; 11, fixing half ring; 12, winding strap; 2, shoulder fixing mechanism; 21, base plate; 211, slide groove; 212, through groove; 22, connecting rod; 23, clamping plate; 231, slider; 232, threaded rod; 233, fixing plate; 234, limiting rod; 24, pressing plate; 25, fixing belt; 26, connecting ring; 27, limiting plate; 271, limiting hole; 28, Armpit pad; 281, adjustment rod; 3, upper arm fixing mechanism; 31, fixing plate; 311, connecting hole; 32, connecting belt; 4, connecting mechanism; 41, fixing shaft; 411, sliding groove; 42, rotating ring; 43, limiting ring; 431, sliding block; 44, meshing teeth; 45, vertical rod; 46, fixing rod; 461, moving groove; 462, groove; 47, moving rod; 48, protrusion; 49, spring. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should all fall within the scope of protection of this application. In addition, the directional words mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only reference to the directions of the accompanying drawings. Therefore, the directional words used are used to illustrate rather than limit the invention.

[0019] The present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.

[0020] Embodiment: A fixed brace with adjustable shoulder abduction angle, see attached Figure 1 -Attached Fig.13 , including a waist and abdomen fixing mechanism 1, a shoulder fixing mechanism 2 and an upper arm fixing mechanism 3, the waist and abdomen fixing mechanism 1 is used to be fixed on the patient's waist and abdomen; the shoulder fixing mechanism 2 is used to be fixed on the patient's shoulder; the upper arm fixing mechanism 3 is used to be fixed on the patient's upper arm, the upper arm fixing mechanism 3 is rotatably connected to the shoulder fixing mechanism 2, and the rotation axis coincides with the abduction rotation axis of the upper arm.

[0021] By rotating the upper arm fixing mechanism 3 on the shoulder fixing mechanism 2, the abduction angle of the shoulder joint can be adjusted, thereby preventing the patient's shoulder joint from becoming stiff.

[0022] Specifically, the waist and abdomen fixing mechanism 1 includes a fixing half ring 11 and a wrapping band 12. The fixing half ring 11 can be attached to one side of the waist and abdomen; the two ends of the wrapping band 12 are respectively connected to the two ends of the fixing half ring 11 to fix the fixing half ring 11 at the waist and abdomen. Specifically, a plurality of wrapping bands 12 are provided and the plurality of wrapping bands 12 are arranged in the vertical direction.

[0023] The fixing half ring 11 is clamped on one side of the waist and abdomen, and then the fixing half ring 11 is fixed to the waist and abdomen through a plurality of winding straps 12.

[0024] Specifically, the upper arm fixing mechanism 3 includes a fixing plate 31 and a connecting belt 32, wherein two fixing plates 31 are provided and are respectively clamped on both sides of the upper arm; multiple connecting belts 32 are provided, the connecting belt 32 is arranged around the upper arm and the two ends of the connecting belt 32 are connected to each other to be tied to the outside of the upper arm; the two fixing plates 31 are provided with connecting holes 311 corresponding to the multiple connecting belts 32 on both sides away from each other, and the connecting belts 32 pass through the two connecting holes 311 on the two fixing plates 31 respectively.

[0025] Specifically, the shoulder fixing mechanism 2 includes a base plate 21, a clamping plate 23 and a pressing plate 24. A connecting rod 22 is fixedly connected to the bottom of the base plate 21, and one end of the bottom of the connecting rod 22 is connected to the fixed half ring 11. The base plate 21 is horizontally arranged, and the base plate 21 passes through the bottom of the pressing nest along its own length direction; there are two clamping plates 23, 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. The clamping plates 23 are perpendicular to their own sliding directions, and the two clamping plates 23 can be clamped on the front and rear sides of the shoulder respectively; the pressing plate 24 is arranged above the two clamping plates 23 and the pressing plate 24 can be pressed on the top of the shoulder, and the two sides of the pressing plate 24 are respectively connected to the ears on the two clamping plates 23 by fixing belts 25.

[0026] Different patients have different body shapes and the distance between the front and back of the shoulders is different. In order to enable the brace to be used by patients of different body shapes, a clamping plate 23 is provided that can 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 patient's shoulder, that is, according to the distance between the front and back sides of the patient's shoulder.

[0027] Specifically, a connecting ring 26 is fixedly connected to the top of the clamping plate 23, one end of the 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. The fixing belt 25 is in a taut state to press the pressing plate 24 against the top of the shoulder.

[0028] Specifically, the top of the base plate 21 is fixedly connected to the limiting 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, and the clamping plate 23 is fixedly connected to the side close to the limiting plate 27 with limiting rods 234 respectively inserted into the two limiting holes 271. The setting of the limiting rods 234 can improve the stability of the connection between the clamping plate 23 and the base plate 21.

[0029] Specifically, a slide groove 211 is arranged along the length direction of the base plate 21 at the bottom of the clamping plate 23. The cross-section of the slide groove 211 perpendicular to its own length direction is convex. A slider 231 is fixedly connected to the bottom of the clamping plate 23 and matched with the slide groove 211. A through groove 212 with a width smaller than the bottom width of the slide groove 211 is arranged at the bottom of the slide groove 211. The length direction of the through groove 212 is arranged along the length direction of the slide groove 211. A threaded rod 232 vertically passing through the through groove 212 is fixedly connected to the bottom of the slider 231. The bottom of the threaded rod 232 is threadedly connected to a fixed plate 233 that can be pressed against the bottom of the base plate 21.

[0030] The arrangement of the slide groove 211 and the slider 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 plate 233 enables the clamping plate 23 to be fixed on the base plate 21 .

[0031] Specifically, an armpit pad 28 is arranged above the limiting plate 27. 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 rotatably connected to an adjusting rod 281 which vertically passes through the limiting plate 27 and the base plate 21, and the adjusting rod 281 is threadedly connected to the base plate 21; the bottom of the armpit pad 28 is fixedly connected to two guide rods which 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.

[0032] By setting the adjustment rod 281, the distance between the armpit pad 28 and the base plate 21 can be adjusted, so that the height of the rotation axis of the fixing plate 31 on the shoulder fixing mechanism 2 can be adjusted, so as to ensure that the rotation axis of the fixing plate 31 coincides with the rotation axis of the upper arm abduction according to the body shape of the person.

[0033] Specifically, one end of the two fixed plates 31 close to the clamping plate 23 is rotatably connected to the two clamping plates 23, and the fixed plate 31 is rotatably connected to the clamping plate 23 through a connecting mechanism 4. The connecting mechanism 4 includes a fixed shaft 41, a rotating ring 42, a limiting ring 43 and a meshing tooth 44. The axis of the fixed shaft 41 is perpendicular to the clamping plate 23; the rotating ring 42 is sleeved outside the fixed shaft 41 and rotatably connected to the fixed shaft 41, and the rotating ring 42 is fixedly connected to the fixed plate 31; the limiting ring 43 is sleeved outside the fixed shaft 41, and the fixed shaft 41 is provided with a sliding groove 411 arranged along the axis direction of the fixed shaft 41, and the limiting ring 43 is fixedly connected to the sliding groove 41 1 and a sliding block 431 that can slide in the sliding groove 411 along the length direction of the sliding groove 411, and the limiting ring 43 slides outside the fixed shaft 41 along the axial direction of the fixed shaft 41; the limiting ring 43 is fixedly connected to a side of the limiting ring 43 close to the rotating ring 42 and a side of the rotating ring 42 close to the limiting ring 43 with a plurality of meshing teeth 44 that are 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.

[0034] When the meshing teeth 44 on the limiting ring 43 mesh with the meshing teeth 44 on the rotating ring 42, the limiting ring 43 can no longer rotate on the fixed shaft 41, so that the rotating ring 42 is fixed on the fixed shaft 41, thereby fixing the outward angle of the fixed plate 31. When the limiting ring 43 is pulled so that the meshing teeth 44 on the limiting ring 43 and the meshing teeth 44 on the rotating ring 42 are disengaged from each other, the limiting ring 43 loses its limit on the rotating ring 42, so that the rotating ring 42 can rotate smoothly on the fixed shaft 41.

[0035] Specifically, the two connecting mechanisms 4 are respectively configured 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 the 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 the side of the rotating ring 42 close to the first connecting mechanism 4; two fixing rods 46 are fixedly connected to both sides of the base plate 21, and a moving groove 461 that penetrates the fixing rod 46 along the length direction of the base plate 21 is provided on the side away from each other of the two fixing rods 46, and two moving rods that can slide in the two moving grooves 461 along the length direction of the moving grooves 461 are provided in the two moving grooves 461 47, two vertical rods 45 are fixedly connected on both sides of the limit ring 43, and the two vertical rods 45 are respectively fixedly connected with the two moving rods 47; a groove 462 is provided on the side of the moving groove 461 close to the base plate 21, the distance between the top and the bottom of the groove 462 is greater than the distance between the top and the bottom of the moving groove 461, the length direction of the groove 462 is parallel to the length direction of the moving groove 461, and a protrusion 48 is provided in the groove 462 and slides in the groove 462 along the length direction of the groove 462, and a spring 49 is provided on the side of the protrusion 48 close to the first connecting mechanism 4 and is located in the groove 462 and is in a compressed state.

[0036] By setting the relative positions of the limiting rings 43 and the rotating ring 42 in the first connection mechanism 4 and the second connection mechanism 4, the two limiting rings 43 in the two connection mechanisms 4 can move in one direction to simultaneously release the limiting of the two rotating rings 42, and by setting the vertical rod 45 and the moving rod 47, the two limiting rings 43 are connected together to achieve synchronous movement of the two limiting rings 43. Specifically, by setting the protrusion 48 and the spring 49, when no external force is applied, the meshing teeth 44 on the limiting ring 43 can be pushed to mesh with the meshing teeth 44 on the rotating ring 42 under the elastic force of the spring 49.

[0037] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A fixed brace with adjustable shoulder abduction angle, characterized in that: It comprises a waist and abdomen fixing mechanism (1), wherein the waist and abdomen fixing mechanism (1) is used to be fixed on the waist and abdomen of a patient; A shoulder fixing mechanism (2), wherein the shoulder fixing mechanism (2) is used to be fixed on the patient's shoulder; And an upper arm fixing mechanism (3), the upper arm fixing mechanism (3) is used to be fixed on the patient's upper arm, the upper arm fixing mechanism (3) is rotatably connected with the shoulder fixing mechanism (2), and the rotation axis coincides with the abduction rotation axis of the upper arm.

2. A 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 fix the fixing half ring (11) at the waist and abdomen.

3. A fixation brace with adjustable shoulder abduction angle according to claim 2, characterized in that: 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; and a connecting belt (32), wherein a plurality of the 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 outside the upper arm; Both sides of the two fixing plates (31) that are away from each other are provided with connection holes (311) that respectively correspond to a plurality of connection belts (32), and the connection belts (32) respectively pass through the two connection holes (311) on the two fixing plates (31).

4. A fixation brace with adjustable shoulder abduction angle according to claim 3, characterized in that: The shoulder fixing mechanism (2) comprises a base plate (21), a connecting rod (22) is fixedly connected to the bottom of the base plate (21), one end of the bottom of the connecting rod (22) is connected to the fixing half ring (11), the base plate (21) is arranged horizontally, and the base plate (21) passes through the bottom of the pressure pocket 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; And a pressing plate (24), wherein the pressing plate (24) is arranged above the two clamping plates (23) and the pressing plate (24) can be pressed tightly on the top of the shoulder, and the two sides of the pressing plate (24) are respectively connected to the two clamping plates (23) through fixing belts (25).

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

6. A fixation brace with adjustable shoulder abduction angle according to claim 5, characterized in that: The top of the base plate (21) is fixedly connected to a limiting 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); and the clamping plate (23) is fixedly connected to one side close to the limiting plate (27) with limiting rods (234) respectively inserted into the two limiting holes (271); The bottom of the clamping plate (23) is provided with a slide groove (211) arranged along the length direction of the base plate (21). 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). The bottom of the slide groove (211) is provided with a through groove (212) whose width is smaller than the bottom width of the slide groove (211). The length direction of the through groove (212) is arranged along the length direction of the slide groove (211). The bottom of the slider (231) is fixedly connected with a threaded rod (232) vertically passing through the through groove (212). 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. A fixation brace with adjustable shoulder abduction angle according to claim 6, characterized in that: An armpit pad (28) is arranged above the limiting plate (27), the top of the armpit pad (28) is flexible, the bottom is rigid, and 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 to an adjustment rod (281) that vertically passes through the limiting plate (27) and the base plate (21), and the adjustment rod (281) is threadedly connected to the base plate (21); The bottom of the armpit pad (28) is fixedly connected with two guide rods which 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. A fixation brace with adjustable shoulder abduction angle according to claim 7, characterized in that: One end of the two fixing plates (31) close to the clamping plate (23) is rotatably connected to the two clamping plates (23) respectively, and the fixing plates (31) are rotatably connected to the clamping plates (23) via a connecting mechanism (4).

9. A fixation brace with adjustable shoulder abduction angle according to claim 8, characterized in that: The connecting mechanism (4) comprises a fixed shaft (41), and the axis of the fixed shaft (41) is 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), wherein the limiting ring (43) is sleeved outside the fixed shaft (41), a sliding groove (411) is arranged outside the fixed shaft (41) along the axial direction of the fixed shaft (41), a sliding block (431) is fixedly connected inside the limiting ring (43) and matches the sliding groove (411) and can slide inside the sliding groove (411) along the length direction of the sliding groove (411), and the limiting ring (43) slides outside the fixed shaft (41) along the axial direction of the fixed shaft (41); and meshing teeth (44); a plurality of meshing teeth (44) are fixedly connected to one side of the limiting ring (43) close to the rotating ring (42) and a plurality of meshing teeth (44) evenly arranged around the axis of the fixed shaft (41) on the one side of the rotating ring (42); 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).

10. A fixation brace with adjustable shoulder abduction angle according to claim 9, characterized in that: The two connecting mechanisms (4) are respectively arranged 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 penetrates 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); and the two vertical rods (45) are fixedly connected to the two movable rods (47) respectively; A groove (462) is provided on the side of the movable groove (461) close to the base plate (21); the distance between the top and the bottom of the groove (462) is greater than the distance between the top and the 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); and a spring (49) located in the groove (462) and in a compressed state is provided on the side of the protrusion (48) close to the first connecting mechanism (4).

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