Shoulder joint abduction brace

Abstract

The invention relates to the technical field of shoulder joint braces, and discloses a shoulder joint abduction brace, which comprises a vertical plate and a fan-shaped plate which are rotatably connected, a transverse plate is mounted on the fan-shaped plate, and the shoulder joint abduction brace further comprises an angle regulator which is arranged between the vertical plate and the fan-shaped plate and is used for regulating the angle between the vertical plate and the fan-shaped plate; an end plate is arranged at the end, close to the vertical plate, of the transverse plate and rotationally installed on the sector plate through a pivot. A sliding ball is further arranged at the bottom of the transverse plate, and the sliding ball is arranged in an arc-shaped ball groove formed in the sector plate in a sliding mode and is positioned through friction force. According to the shoulder joint abduction brace, the transverse plate is rotatably installed on the fan-shaped plate through the pivot, so that the included angle between the transverse plate and the chest is conveniently controlled, the supporting face of the transverse plate is better attached to the physiological curved faces of the shoulders of different patients, and the wearing comfort and supporting stability are effectively improved; and the device also has the advantages of relieving local compression, relieving scapula compensation, adapting to different postures and the like.

Description

Technical Field

[0001] The invention relates to the technical field of shoulder joint braces, in particular to a shoulder joint abduction brace. Background Art

[0002] Due to accidental trauma, rotator cuff injury, frozen shoulder, postoperative recovery and other reasons, patients often suffer from shoulder dysfunction, especially limited shoulder abduction function. In order to promote early recovery of shoulder joint function, shoulder abduction braces are usually used in the prior art to support the arm.

[0003] For example, in the authorized patent with the Chinese patent announcement number: CN208573872U, a shoulder abduction brace is provided, which adopts a shoulder joint fixing mechanism that can adjust the angle in two dimensions, and can flexibly adjust the abduction angle. A ruler is provided on each angle and length adjustment structure to achieve quantitative adjustment, so that doctors or technicians can accurately and conveniently adjust the length and angle of each part, and quickly adapt to various patients.

[0004] However, in actual application, we found that the above-mentioned and existing shoulder abduction braces still have certain shortcomings, such as: The angle adjustment of existing braces generally relies on a knob-type structure, which needs to be unlocked and adjusted through a "rotating" operation. This method is not friendly enough for patients with weak upper limb strength or lack of operational ability, and it is difficult to achieve self-adjustment, which affects the convenience of use. Summary of the invention

[0005] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides a shoulder abduction brace, which has the advantage that patients can conveniently perform autonomous adjustments.

[0006] (II) Technical solution In order to achieve the purpose of enabling the above-mentioned patient to conveniently perform self-adjustment, the present invention provides the following technical solution: a shoulder joint abduction brace, comprising a vertical plate and a fan-shaped plate connected in rotation, a horizontal plate being installed on the fan-shaped plate, and further comprising: An angle adjuster is provided between the vertical plate and the fan-shaped plate, and is used to adjust the angle between the vertical plate and the fan-shaped plate; An end plate is provided at one end of the horizontal plate close to the vertical plate, and the end plate is mounted on the fan-shaped plate by pivoting; A sliding ball is also provided at the bottom of the horizontal plate. The sliding ball is slidably arranged in an arc-shaped ball track opened on the fan-shaped plate and is positioned by means of friction.

[0007] As a preferred technical solution of the present invention, a rotating shaft is provided at the end of the sector plate, and the rotating shaft is rotatably installed in a sink groove opened at the top end of the vertical plate.

[0008] As a preferred technical solution of the present invention, the end plate is a rotating end plate, which is arranged at one end of the horizontal plate close to the vertical plate and is installed on the fan-shaped plate by pivot rotation.

[0009] As a preferred technical solution of the present invention, an insert plate is movably inserted into one end of the horizontal plate close to the vertical plate, and the insert plate is rotatably connected to the rotating end plate through a hinge.

[0010] As a preferred technical solution of the present invention, a sliding plate is fixedly installed on the top of the sliding ball, and the sliding plate is slidably installed in a sliding groove opened at the bottom of the horizontal plate.

[0011] As a preferred technical solution of the present invention, the angle adjuster comprises a threaded barrel, a lower stud, a lower connecting rod, an upper stud and an upper connecting rod; The inner walls at both ends of the threaded barrel are respectively formed with a lower thread and an upper thread with opposite rotation directions, the lower thread is screwed with a lower stud, the end of the lower stud is connected to a lower connecting rod, the end of the lower connecting rod is rotatably mounted in a side mounting seat, and the side mounting seat is fixedly mounted on the vertical plate; An upper stud is screwed into the upper thread, an end of the upper stud is connected to an upper connecting rod, the end of the upper connecting rod is rotatably mounted in a bottom mounting seat, and the bottom mounting seat is fixedly mounted on the bottom of the sector plate.

[0012] As a preferred technical solution of the present invention, the lower stud and the upper stud end are both formed with an inner cavity, a piston is movably arranged in the inner cavity, and the piston is supported by a support spring; The two pistons are respectively connected to a lower connecting rod and an upper connecting rod through two connecting rods.

[0013] As a preferred technical solution of the present invention, the bottom of the piston in the lower stud end is supported by a support spring, and the connecting rod is fixedly connected to the bottom of the piston; The bottom of the piston in the upper stud head is supported by a support spring, and the connecting rod is fixedly mounted on the top of the piston.

[0014] As a preferred technical solution of the present invention, the inner cavity is filled with damping oil, a tapered hole is formed through the piston, and the upper end diameter of the tapered hole is smaller than the lower end diameter.

[0015] As a preferred technical solution of the present invention, it also includes two sleeves, which are respectively fixedly installed on the top of the lower connecting rod and the bottom of the upper connecting rod, and are movably sleeved on the threaded cylinder to limit the rotation of the lower connecting rod and the upper connecting rod.

[0016] (III) Beneficial effects Compared with the prior art, the present invention provides a shoulder abduction brace, which has the following beneficial effects: 1. The shoulder abduction brace has a horizontal plate that is rotatably mounted on a fan-shaped plate through a pivot, so that the angle of the horizontal plate relative to the chest can be easily controlled, so that the support surface of the horizontal plate can better fit the physiological curve of the shoulders of different patients, effectively improving the wearing comfort and support stability. At the same time, it also has the advantages of reducing local pressure, reducing scapular compensation, and adapting to different postures.

[0017] 2. For the shoulder abduction brace, when the angle of the horizontal board relative to the chest needs to be adjusted, the patient can lightly lift his upper arm to easily drive the horizontal board to rotate through his upper arm. After the arm unloads the force, the horizontal board is stably locked on the fan-shaped board. It is easy to operate and convenient for patients to adjust themselves.

[0018] 3. The shoulder abduction brace can realize continuous adjustment of the angle between the vertical plate and the fan-shaped plate by setting an angle adjuster between the vertical plate and the fan-shaped plate, so as to flexibly control the abduction angle of the horizontal plate to meet the training needs of different patients at different rehabilitation stages, with precise adjustment and strong adaptability.

[0019] 4. The shoulder abduction brace is equipped with a hydraulic damping piston assembly in the upper and lower studs of the angle adjuster. Through the tapered hole, it can achieve slow resetting after the patient lifts or presses down the arm, effectively preventing impact injuries caused by rapid fall of the arm, and improving the safety and comfort of training. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an enlarged schematic diagram of the threaded barrel part of the present invention; Figure 3 It is a cross-sectional view of the threaded barrel portion of the present invention; Figure 4 It is a cross-sectional view of another threaded barrel structure of the present invention; Figure 5 is a cross-sectional view of the piston portion of the present invention; Figure 6 It is an enlarged schematic diagram of the sector plate part of the present invention; Figure 7 It is a side cross-sectional view of the sector plate portion of the present invention.

[0021] In the figure: 1, vertical plate; 2, sink groove; 3, fan-shaped plate; 4, rotating shaft; 5, horizontal plate; 6, threaded tube; 7, lower stud; 8, lower connecting rod; 9, upper stud; 10, upper connecting rod; 11, sleeve; 12, inner cavity; 13, piston; 14, supporting spring; 15, connecting rod; 16, tapered channel; 17, plug plate; 18, hinge; 19, rotating end plate; 20, pivot; 21, sliding ball; 22, arc ballway; 23, sliding plate; 24, sliding groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1: See also Figure 1-Figure 7 A shoulder abduction brace comprises a vertical plate 1 and a fan-shaped plate 3 which are rotatably connected to each other. A horizontal plate 5 is installed on the fan-shaped plate 3. The patient's upper arm is fixed on the horizontal plate 5. Specifically, a bracket can be installed on the horizontal plate 5, and the patient's upper arm can be fixed by Velcro, while the vertical plate 1 can be tied to the chest and abdomen of the patient by a strap. The specific fixing structure can be set by those skilled in the art according to actual needs, and is not specifically limited in this embodiment. In addition, a forearm bracket and a hand bracket can also be set at the end of the horizontal plate 5. Since these are not the main improvements of the present invention, they are not described in detail.

[0024] like Figure 6 As shown, an end plate is provided at one end of the horizontal plate 5 close to the vertical plate 1, and the end plate is rotatably mounted on the fan-shaped plate 3 through a pivot 20. Specifically, the end plate is a rotating end plate 19, which is provided at one end of the horizontal plate 5 close to the vertical plate 1, and is rotatably mounted on the fan-shaped plate 3 through a pivot 20. Therefore, the angle of the entire horizontal plate 5 relative to the patient's chest is adjustable, so that the supporting surface of the horizontal plate 5 can better fit the physiological curvature of the shoulders of different patients, effectively improving the wearing comfort and supporting stability, and at the same time, it also plays a role in reducing local pressure, reducing scapular compensation, and adapting to different postures.

[0025] In this embodiment, a sliding ball 21 is further provided at the bottom of the horizontal plate 5. The sliding ball 21 is slidably arranged in the arc ball track 22 opened on the fan-shaped plate 3 and is positioned by friction. The arc ball track 22 takes the pivot 20 as the virtual center and is slightly larger than the sliding ball 21. In this way, the angle adjustment of the horizontal plate 5 relative to the patient's chest can be made more stable. like Figure 7As shown, an insert plate 17 is movably inserted at one end of the horizontal plate 5 close to the vertical plate 1, and the insert plate 17 is rotatably connected to the rotating end plate 19 through a hinge 18. In addition, a sliding plate 23 is fixedly installed on the top of the sliding ball 21, and the sliding plate 23 is slidably installed in a sliding groove 24 opened at the bottom of the horizontal plate 5. In this embodiment, the side sections of the sliding plate 23 and the sliding groove 24 are both "T"-shaped; In actual use, when the angle of the horizontal board 5 relative to the chest needs to be adjusted, the patient lightly lifts the upper arm to slightly tilt the horizontal board 5. At this time, the sliding ball 21 is not in close contact with the inner wall of the arc-shaped ball track 22, and the friction force is small, so that the horizontal board 5 can be driven to rotate by the rotation of the upper arm. After the upper arm unloads the force, the sliding ball 21 is automatically pressed against the inner wall of the arc ballway 22, and the friction force is relatively large, so that the horizontal plate 5 can be stably locked on the fan-shaped plate 3, ensuring stability during use; In this embodiment, the adjustment of the angle of the horizontal board 5 relative to the chest is easy to operate and can be completed by the patient by himself without the assistance of the other arm.

[0026] In addition, the present invention also supports telescopic adjustment of the horizontal plate 5 along its own direction, that is, by pushing or pulling the horizontal plate 5 to change its extended length relative to the fan-shaped plate 3 to adapt to the wearing needs of patients with different arm lengths. This adjustment will not affect the operation of the above-mentioned friction locking system.

[0027] Embodiment 2: See also Figure 1-Figure 5 On the basis of the first embodiment, in the present embodiment, a rotating shaft 4 is provided at the end of the sector plate 3, and the rotating shaft 4 is rotatably installed in the sink 2 opened at the top of the vertical plate 1, so that the angle between the vertical plate 1 and the sector plate 3 (i.e., the horizontal plate 5) can be adjusted to flexibly control the abduction angle of the horizontal plate 5 to meet the training needs of different patients at different rehabilitation stages, with precise adjustment and strong adaptability.

[0028] In the present invention, an angle adjuster is provided between the vertical plate 1 and the fan-shaped plate 3, and the angle adjuster is used to adjust the angle between the vertical plate 1 and the fan-shaped plate 3. Specifically, Figure 2 and Figure 3 As shown, the angle adjuster includes a threaded barrel 6, a lower stud 7, a lower connecting rod 8, an upper stud 9 and an upper connecting rod 10. The inner walls at both ends of the threaded barrel 6 are respectively formed with lower threads and upper threads with opposite rotation directions. The lower stud 7 is screwed into the lower thread, and the end of the lower stud 7 is connected to the lower connecting rod 8. The end of the lower connecting rod 8 is rotatably mounted in the side mounting seat, and the side mounting seat is fixedly mounted on the vertical plate 1. The upper stud 9 is screwed into the upper thread, and the end of the upper stud 9 is connected to the upper connecting rod 10. The end of the upper connecting rod 10 is rotatably mounted in the bottom mounting seat, and the bottom mounting seat is fixedly mounted on the bottom of the sector plate 3. Thus, by rotating the threaded barrel 6 to make the lower stud 7 and the upper stud 9 extend or retract synchronously, the angle between the vertical plate 1 and the sector plate 3 can be increased or decreased.

[0029] In the present invention, the patient can also perform rehabilitation training by actively adjusting the abduction angle of the upper arm. Specifically, Figure 4 As shown, an inner cavity 12 is formed inside the ends of the lower stud 7 and the upper stud 9, and a piston 13 is movably arranged in the inner cavity 12. The piston 13 is supported by a supporting spring 14, and the two pistons 13 are respectively connected to the lower connecting rod 8 and the upper connecting rod 10 through two connecting rods 15; Further, the bottom of the piston 13 in the end of the lower stud 7 is supported by a support spring 14, and a connecting rod 15 is fixedly connected to the bottom of the piston 13, and the bottom of the piston 13 in the end of the upper stud 9 is supported by a support spring 14, and a connecting rod 15 is fixedly installed on the top of the piston 13; In addition, the inner cavity 12 is filled with damping oil, and a tapered hole 16 is provided through the piston 13, and the upper end diameter of the tapered hole 16 is smaller than the lower end diameter; See also Figure 4 During rehabilitation training, patients can: The upper arm is lifted up, at this time, the upper piston 13 remains in position, and the lower piston 13 moves down and compresses the support spring 14. Since the upper diameter of the tapered hole 16 is smaller than the lower diameter, the damping oil can pass through easily; after lifting up, the patient's arm is unloaded. At this time, due to the restoring force of the support spring 14, the lower piston 13 will reset, and then the arm will reset. However, since the upper diameter of the tapered hole 16 is smaller than the lower diameter, the damping oil is difficult to pass through, so this reset process is slow; Press down the big arm. At this time, the position of the piston 13 below remains unchanged, and the piston 13 above moves down and compresses the support spring 14. The overall operation mechanism is the same as above. Pressing down is relatively easy and the reset process is slow. Therefore, in the present invention, the ease of lifting or pressing down means that the patient needs less strength to drive the arm, reducing the difficulty of operation and improving the recovery efficiency. The slow resetting process can prevent the arm from suddenly falling due to gravity / spring restoring force, avoiding shoulder joint strain or secondary injury to the surgical site. It is particularly suitable for use after rotator cuff injury and shoulder replacement surgery.

[0030] In the present invention, two sleeves 11 are further provided, which are fixedly mounted on the top of the lower connecting rod 8 and the bottom of the upper connecting rod 10 respectively, and are movably sleeved on the threaded tube 6 to limit the rotation of the lower connecting rod 8 and the upper connecting rod 10. Specifically, the sleeve 11 and the threaded tube 6 are matched through flower grooves and splines to limit the rotation of the sleeve 11, the lower connecting rod 8 and the upper connecting rod 10.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shoulder joint abduction brace, comprising a vertical plate (1) and a fan-shaped plate (3) connected in rotation, wherein a horizontal plate (5) is mounted on the fan-shaped plate (3), characterized in that: Also includes: An angle adjuster is provided between the vertical plate (1) and the fan-shaped plate (3) and is used to adjust the angle between the vertical plate (1) and the fan-shaped plate (3); An end plate is provided at one end of the horizontal plate (5) close to the vertical plate (1), and the end plate is rotatably mounted on the fan-shaped plate (3) via a pivot (20); A sliding ball (21) is also provided at the bottom of the horizontal plate (5). The sliding ball (21) is slidably arranged in an arc-shaped ball track (22) opened on the fan-shaped plate (3) and is positioned by means of friction.

2. The shoulder abduction brace according to claim 1, characterized in that: A rotating shaft (4) is provided at the end of the sector plate (3), and the rotating shaft (4) is rotatably mounted in a sink (2) opened at the top end of the vertical plate (1).

3. The shoulder abduction brace according to claim 1, characterized in that: The end plate is a rotating end plate (19), which is arranged at one end of the horizontal plate (5) close to the vertical plate (1) and is rotatably mounted on the fan-shaped plate (3) via a pivot (20).

4. The shoulder abduction brace according to claim 3, characterized in that: An insert plate (17) is movably inserted at one end of the transverse plate (5) close to the vertical plate (1), and the insert plate (17) is rotatably connected to a rotating end plate (19) via a hinge (18).

5. The shoulder abduction brace according to claim 4, characterized in that: A sliding plate (23) is fixedly mounted on the top of the sliding ball (21), and the sliding plate (23) is slidably mounted in a sliding groove (24) provided at the bottom of the transverse plate (5).

6. The shoulder abduction brace according to claim 1, characterized in that: The angle adjuster comprises a threaded barrel (6), a lower stud (7), a lower connecting rod (8), an upper stud (9) and an upper connecting rod (10); The inner walls of the two ends of the threaded barrel (6) are respectively formed with a lower thread and an upper thread with opposite rotation directions, the lower thread is internally threaded with a lower stud (7), the end of the lower stud (7) is connected to a lower connecting rod (8), the end of the lower connecting rod (8) is rotatably mounted in a side mounting seat, and the side mounting seat is fixedly mounted on the vertical plate (1); An upper stud (9) is screwed into the upper thread, and an end of the upper stud (9) is connected to an upper connecting rod (10). The end of the upper connecting rod (10) is rotatably mounted in a bottom mounting seat, and the bottom mounting seat is fixedly mounted on the bottom of the sector plate (3).

7. The shoulder abduction brace according to claim 6, characterized in that: An inner cavity (12) is formed inside the ends of the lower stud (7) and the upper stud (9), a piston (13) is movably arranged in the inner cavity (12), and the piston (13) is supported by a support spring (14); The two pistons (13) are respectively connected to the lower connecting rod (8) and the upper connecting rod (10) via two connecting rods (15).

8. The shoulder abduction brace according to claim 7, characterized in that: The bottom of the piston (13) in the end of the lower stud (7) is supported by a support spring (14), and the connecting rod (15) is fixedly connected to the bottom of the piston (13); The bottom of the piston (13) in the end of the upper stud (9) is supported by a support spring (14), and the connecting rod (15) is fixedly mounted on the top of the piston (13).

9. The shoulder abduction brace according to claim 8, characterized in that: The inner cavity (12) is filled with damping oil, and a tapered hole (16) is provided through the piston (13), wherein the diameter of the upper end of the tapered hole (16) is smaller than the diameter of the lower end.

10. The shoulder abduction brace according to claim 8, characterized in that: It also includes two sleeves (11) which are respectively fixedly mounted on the top of the lower connecting rod (8) and the bottom of the upper connecting rod (10), and are movably sleeved on the threaded cylinder (6) to limit the rotation of the lower connecting rod (8) and the upper connecting rod (10).

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