A support protection device for shoulder abduction

Abstract

The utility model provides a kind of support protection device for shoulder joint abduction, comprising: shoulder cover, the cavity for accommodating shoulder joint is formed in the shoulder cover;Abduction adjusting mechanism, the first connecting component and the second connecting component respectively arranged in the shoulder cover two sides are included in the abduction adjusting mechanism;First support plate for fixing upper arm, one end of the first support plate is connected to the first connecting component and the second connecting component respectively, the first connecting component and the second connecting component are used to drive the first support plate rotation, to drive the upper arm rotation, the other end of the first support plate extends along the length direction of the upper arm;Second support plate for fixing forearm, the second support plate is rotatably connected to the other end of the first support plate. Through abduction adjusting mechanism, the first support plate is rotated by using the cooperation of pull rope and gyro wheel drive, realize the accurate, dynamic adjustment of shoulder joint abduction angle, satisfy different rehabilitation stage demand.

Description

Technical Field

[0001] This utility model relates to the field of shoulder joint rehabilitation technology, specifically to a support and protection device for shoulder joint abduction. Background Technology

[0002] As the joint with the greatest range of motion in the human body, the shoulder joint faces significant clinical treatment needs due to sports injuries, degenerative changes, and traumatic dislocations. Data shows that sports injuries account for 10%-20% of all shoulder dislocations, the incidence of rotator cuff degeneration in people over 50 years old is as high as 25%-40%, and traumatic dislocations account for 50% of all joint dislocations. For surgeries such as rotator cuff repair and shoulder replacement, proper postoperative positioning is crucial to preventing complications such as re-tears and joint adhesions. Typically, the shoulder joint needs to be maintained at a specific angle of abduction of 15°-30°.

[0003] Currently used shoulder abduction support devices have significant limitations. For example, while traditional plastic or metal frame braces offer strong fixation, they lack comfort and can compress the axilla with prolonged use. Inflatable support straps, while able to distribute pressure, suffer from insufficient stability and are prone to displacement. More importantly, existing devices generally lack dynamic angle adjustment capabilities, failing to adapt to the patient's rehabilitation progress, such as gradually transitioning from 30° abduction to 0° for precise, phased rehabilitation. This necessitates frequent brace changes at different rehabilitation stages, increasing medical costs and complexity, and potentially affecting healing outcomes due to changes in body position during brace replacement. Therefore, developing a shoulder abduction support and protection device capable of dynamic angle adjustment and adapting to the entire rehabilitation cycle is an urgent problem that needs to be solved. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a support and protection device for shoulder joint abduction. Through the abduction adjustment mechanism, the first support plate is driven to rotate by the cooperation of the pull rope and roller. Combined with the encoder, the abduction angle of the shoulder joint can be accurately and dynamically adjusted to meet the needs of different rehabilitation stages and avoid frequent replacement of braces.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A support and protection device for shoulder abduction includes: a shoulder shield with a cavity for accommodating the shoulder joint, the open end of which is provided with a support strap, the support strap being wrapped around the user's chest to fix the position of the shoulder shield; an abduction adjustment mechanism including a first connecting component and a second connecting component respectively disposed on both sides of the shoulder shield; a first support plate for fixing the upper arm, one end of the first support plate being connected to the first connecting component and the second connecting component respectively, the first connecting component and the second connecting component being used to drive the first support plate to rotate, thereby driving the upper arm to rotate, the other end of the first support plate extending along the length direction of the upper arm; and a second support plate for fixing the forearm, the second support plate being rotatably connected to the other end of the first support plate.

[0007] According to one example, the first connecting assembly includes a first support and a first swing rod, the first support being disposed on one side of the shoulder cover, one end of the first swing rod being rotatably connected to the first support, and the other end of the first swing rod being connected to one end of the first support plate.

[0008] According to one example, a first bearing is provided on the first support, and one end of the first swing rod is connected to the first bearing.

[0009] According to one example, the second connecting assembly includes a second support and a second swing rod. The second support is disposed on the other side of the shoulder cover, and the second swing rod is rotatably connected to the second support. Two rollers are arranged side by side between the second support and the second swing rod. One end of each roller is rotatably connected to the second support, and the other end is fixedly connected to the second swing rod. A pull rope is wound around the circumferential wall of each roller, and one end of the pull rope extends downward for pulling the pull rope to rotate the roller, thereby driving the second swing rod and the first support plate to rotate.

[0010] According to one example, a flat plate is provided on the other side of the shoulder cover, through which the pull cord is threaded. The pull cord is provided with two locking rings, which are located above and below the flat plate, respectively, and are used to limit the range of movement of the pull cord.

[0011] According to one example, a second bearing is provided on the second support, and one end of the second swing rod is connected to the second bearing.

[0012] According to one example, an encoder for monitoring the rotation angle of the roller is provided on one side of the second swing arm.

[0013] According to one example, the upper surface of the first support plate is provided with a first fixing strap, and the inner side of the first fixing strap is provided with a plurality of airbags for fixing the upper arm.

[0014] According to one example, the upper surface of the second support plate is provided with a second fixing strap, and the inner side of the second fixing strap is provided with a plurality of airbags for fixing the forearm.

[0015] According to one example, the first support plate is arranged perpendicularly to the second support plate, and a damping hinge for adjusting the rotation angle of the second support plate is provided therebetween.

[0016] This utility model has the following advantages:

[0017] This utility model's support and protection device utilizes the cooperation between a pull rope and a roller in the second connecting assembly. Pulling the pull rope drives the roller to rotate, which in turn drives the second swing rod and the first support plate to rotate, enabling flexible adjustment of the shoulder joint abduction angle. This meets the different abduction angle needs of patients from the early postoperative period to the later stages of rehabilitation (e.g., gradually transitioning from 30° abduction to 0°), eliminating the need for frequent brace changes and improving rehabilitation efficiency. Simultaneously, an encoder on one side of the second swing rod monitors the roller's rotation angle, providing data feedback for angle adjustment and ensuring accurate angle control. Furthermore, the combined design of the pull rope, locking ring, and plate allows operators to easily pull the pull rope to adjust the abduction angle, and the locking ring limits the range of movement of the pull rope, achieving angle locking and fixation. The operation is simple and convenient, reducing the difficulty of use.

[0018] The shoulder cover of this utility model's support and protection device is fixed to the user's chest by a support strap. The first support plate and the second support plate are connected to the shoulder cover by the first connecting component and the second connecting component, respectively, forming a stable support structure. The fixing straps on the upper surface of the first support plate and the second support plate are equipped with airbags, which can be inflated and fixed according to the size of the patient's limb to provide sufficient support force, evenly distribute pressure, avoid local compression, and ensure the stability of the device. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the support and protection device for shoulder joint abduction according to this utility model.

[0020] Figure 2 This is a three-dimensional structural diagram of the support and protection device of this utility model from another angle.

[0021] Figure 3 This is a three-dimensional structural diagram of the outward adjustment mechanism of this utility model.

[0022] Figure 4 This is an exploded perspective view of the support and protection device of this utility model.

[0023] Figure 5 This is an exploded perspective view of the support and protection device of this utility model from another angle.

[0024] Among them, 1 is the shoulder cover, 101 is the chamber, 102 is the open end, 103 is the support belt, 104 is the flat plate, 104a is the through hole, 2 is the outward adjustment mechanism, 201 is the first connecting assembly, 201a is the first support, 201a1 is the first bearing, 201b is the first swing rod, 201c is the first connecting rod, 202 is the second connecting assembly, 202a is the second support, 202a1 is the second bearing, 202b is the second swing rod, 202c is the roller, 202c1 is the pull rope, 202c2 is the locking ring, 202d is the second connecting rod, 203 is the encoder, 204 is the third support, 204a is the third bearing, 3 is the first support plate, 301 is the first fixing belt, 4 is the second support plate, 401 is the second fixing belt, and 5 is the damping hinge. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] Reference Figure 1-5 This paper illustrates an embodiment of a support and protection device for shoulder abduction, which mainly includes a shoulder shield 1, an abduction adjustment mechanism 2, a first support plate 3, and a second support plate 4, forming a dynamic support system. The shoulder shield 1, the first support plate 3, and the second support plate 4 are all made of high-strength, lightweight materials, such as carbon fiber, aluminum alloy, and titanium alloy, which reduces the burden of wearing the device while ensuring structural strength, thus improving patient comfort and portability.

[0027] Reference Figure 1 and Figure 2 The shoulder cover 1 has a cavity 101 inside for accommodating the shoulder joint. The cavity 101 can fit the contour of the shoulder joint. The opening end 102 is provided with a support strap 103. The support strap 103 is made of elastic material and can wrap around the user's chest to form a hugging fixation. The tightness can be adjusted by Velcro or buckle and other connecting structures, thereby fixing the position of the shoulder cover 1 without displacement.

[0028] Reference Figure 3 The abduction adjustment mechanism 2 is located on both sides of the shoulder shield 1. The abduction adjustment mechanism 2 consists of a first connecting component 201 and a second connecting component 202, which are symmetrically distributed on both sides of the shoulder shield 1 to form a dual-pivot drive structure. This structure achieves angle control of the first support plate 3 through the coordinated movement of the two connecting components, thereby adjusting the abduction position of the shoulder joint.

[0029] Next refer to Figure 4 and Figure 5The first connecting assembly 201 includes a first support 201a and a first swing rod 201b. The first support 201a is disposed on one side of the shoulder cover 1. One end of the first swing rod 201b is rotatably connected to the first support 201a. The first support 201a has a shaft hole, in which a first bearing 201a1 is installed. One end of the first swing rod 201b is connected to the first bearing 201a1 via a shaft, allowing the first swing rod 201b to swing about the first bearing 201a1 as a fulcrum. The other end of the first swing rod 201b is connected to one end of the first support plate 3, thus providing stable support and a rotational base for the first support plate 3. A first connecting rod 201c is also provided between the first swing rod 201b and the first support plate 3.

[0030] The second connecting assembly 202 is symmetrically arranged with the first connecting assembly 201. The second connecting assembly 202 includes a second support 202a and a second swing rod 202b. The second support 202a is located on the other side of the shoulder cover 1. The second swing rod 202b is rotatably connected to the second support 202a. The second support 202a has a shaft hole, and a second bearing 202a1 is installed in the shaft hole. One end of the second swing rod 202b is connected to the second bearing 202a1 via a shaft to ensure smooth rotation of the second swing rod 202b. The other end of the second swing rod 202b is connected to one end of the second support plate 4. Under the synchronous rotation of the first swing rod 201b and the second swing rod 202b, the first support plate 3 swings outward or inward, thereby adjusting the abduction angle of the upper arm and controlling the abduction position of the shoulder joint. A second connecting rod 202d is also provided between the second swing rod 202b and the first support plate 3. Both the first bearing 201a1 and the second bearing 202a1 are rolling bearings.

[0031] In this embodiment, the second connecting assembly 202 is also equipped with a power transmission structure. Two linkage rollers 202c are arranged side by side between the second support 202a and the second swing rod 202b. The rollers 202c provide rotational power to the second swing rod 202b. One end of the rollers 202c is rotatably connected to the second support 202a, and the other end of the rollers 202c is fixedly connected to the second swing rod 202b. Specifically, the two rollers 202c are connected in series by a shaft. One end of the shaft is fixedly connected to the second bearing 202a1, and the other end of the shaft is fixedly connected to the second swing rod 202b. The connection method between the shaft and the second swing rod 202b can be keying, welding, etc.

[0032] In this design, a pull rope 202c1 is wound around the circumferential wall of the roller 202c, with one end of the pull rope 202c1 extending downwards. The pull ropes 202c1 on the two rollers 202c are wound in opposite directions, so that the free ends of the two pull ropes 202c1 are located on opposite sides of the roller 202c. Thus, by pulling one of the pull ropes 202c1, the roller 202c can be driven to rotate, which in turn drives the second swing rod 202b and the connected first support plate 3 to rotate inwards or outwards, achieving dynamic adjustment of the shoulder joint abduction angle. This pull rope-roller transmission structure is not only easy to operate, but also allows for adjustment of the abduction angle by controlling the pulling range of the pull rope 202c1, meeting the treatment needs of patients at different stages of rehabilitation.

[0033] The shoulder shield 1 has a flat plate 104 on its other side, through which a pull cord 202c1 passes. The pull cord 202c1 has two locking rings 202c2, located above and below the flat plate 104 respectively, which limit the range of movement of the pull cord 202c1. Specifically, the flat plate 104 has a through hole 104a, serving as a guide channel for the pull cord 202c1 to pass through. The distance between the locking rings 202c2 and the pull cord 202c1 can be flexibly adjusted by manually turning or sliding them, thereby limiting the effective pulling stroke of the pull cord 202c1. When the pull cord 202c1 is pulled to adjust the first support plate 3 to the desired abduction angle, fixing the positions of the two locking rings 202c2 effectively limits the pull cord 202c1's retraction or displacement, ensuring that the first support plate 3 remains stably at the set angle, preventing angle deviation due to external forces, and providing stable support and protection for the patient. The connection between the locking ring 202c2 and the pull rope 202c1 can be a threaded connection, a snap-fit ​​connection, etc. For example, in a threaded connection, an external thread is formed axially on the surface of the pull rope 202c1, and the inner walls of the two locking rings 202c2 are provided with matching internal threads. When it is necessary to adjust the pulling range of the pull rope 202c1, the operator can manually screw the locking rings 202c2 located above and below the plate 104. Through the threaded transmission, the locking rings 202c2 move axially on the pull rope 202c1. After the first support plate 3 is adjusted to the required outward angle, the two locking rings 202c2 are tightened. The friction and meshing between the threads restrict the displacement of the pull rope 202c1 in the through hole 104a of the plate 104, thereby fixing the first support plate 3 at the set angle.

[0034] For example, in a snap-fit ​​connection, multiple grooves or protrusions are spaced apart on the surface of the pull rope 202c1, forming a slot array. Each locking ring 202c2 has an elastically retractable snap-fit ​​component on its inner side. When the travel of the pull rope 202c1 needs adjustment, the operator manually presses the snap-fit ​​release button on the locking ring 202c2 to disengage the snap-fit ​​from the slot of the pull rope 202c1, allowing the locking ring 202c2 to slide along the axial direction of the pull rope 202c1. When the first support plate 3 reaches a suitable outward angle, releasing the snap-fit ​​release button causes the elastic snap-fit ​​to automatically engage with the corresponding slot of the pull rope 202c1. The tight fit between the snap-fit ​​and the slot locks and secures the pull rope 202c1.

[0035] An encoder 203 for monitoring the rotation angle of the roller 202c is provided on one side of the second swing rod 202b. A third support 204 is also provided between the second swing rod 202b and the encoder 203. The third support 204 is fixed to the other side of the shoulder cover 1. A third bearing 204a is provided on the third support 204. The shaft of the roller 202c passes through the third bearing 204a and is connected to the input end of the encoder 203. This ensures that the rotational motion of the roller 202c's shaft can be transmitted to the encoder 203 during rotation, thereby ensuring that the encoder 203 can capture changes in the rotation angle of the roller 202c.

[0036] Return to reference Figure 1 and Figure 2 The first support plate 3 and the second support plate 4 constitute the support and fixing structure for the arm. The first support plate 3 is used to fix the upper arm. One end of the first support plate 3 is connected to the first connecting assembly 201 and the second connecting assembly 202, respectively. The first connecting assembly 201 and the second connecting assembly 202 are used to drive the first support plate 3 to rotate, thereby causing the upper arm to rotate. The other end of the first support plate 3 extends along the length direction of the upper arm. The second support plate 4 is used to fix the forearm. The second support plate 4 is rotatably connected to the other end of the first support plate 3.

[0037] The first support plate 3 has a first fixing strap 301 on its upper surface, and multiple airbags (not shown in the figure) for fixing the upper arm are provided on the inner side of the first fixing strap 301. The second support plate 4 has a second fixing strap 401 on its upper surface, and multiple airbags (not shown in the figure) for fixing the forearm are provided on the inner side of the second fixing strap 401. The airbags can be inflated and adjusted according to the actual size of the patient's upper arm and forearm, providing support for the limb and effectively dispersing pressure through uniform air pressure distribution. Both the first fixing strap 301 and the second fixing strap 401 are silicone-coated nylon straps.

[0038] In an embodiment not shown, pressure sensors are disposed on the inner surfaces of the first fixing strap 301 and the second fixing strap 401 to monitor the muscle contraction state and adjust the inflation amount of the airbag based on the data to adjust the tightness of the arm fixation.

[0039] Among them, such as Figure 1 As shown, the first support plate 3 and the second support plate 4 are arranged perpendicularly, and a damping hinge 5 for adjusting the rotation angle of the second support plate 4 is provided between them. In an embodiment not shown, the damping hinge 5 mainly includes a fixed plate, a movable plate, a friction plate, a spring, and an adjusting bolt. The fixed plates are fastened to the connecting end faces of the first support plate 3 and the second support plate 4 respectively by screws, and the movable plate is hinged between the two fixed plates, allowing the second support plate 4 to rotate relative to the first support plate 3. The friction plate is installed on the contact surface of the fixed plate and the movable plate, providing damping force during rotation. The spring is fitted on the rotation shaft of the hinge, with one end abutting against the fixed plate and the other end acting on the movable plate, providing preload force to the friction plate in its natural state. The adjusting bolt runs through the entire hinge, and by rotating the adjusting bolt, the compression of the spring can be changed, thereby adjusting the pressure between the friction plates and realizing the adjustment of the damping force. During adjustment, the user applies force to overcome the friction and rotates the second support plate 4, the movable plate drives the friction plate to slide, and the spring dynamically compensates for the pressure. After reaching the desired angle and releasing the force, the spring and friction plate work together to stop the moving plate, thereby locking the second support plate 4.

[0040] The first support plate 3 and the second support plate 4 are rotatably connected by a damping hinge 5. Combined with the first fixing strap 301 and the second fixing strap 401 with airbags on the upper surface, they can provide wrap-around support for the upper arm and forearm, and the fixing angle and pressure distribution can be adjusted according to individual differences.

[0041] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention should be considered equivalent substitutions and are included within the protection scope of the present invention. The embodiments described in this disclosure are intended as non-limiting examples, and other embodiments may take various and alternative forms. Furthermore, the drawings are not necessarily to scale and may present simplified expressions of various features of the present disclosure, including, for example, specific dimensions, orientations, positions, and shapes. Details associated with such features will be determined in part by the intended application and usage environment of the described embodiments.

[0042] The detailed description and accompanying drawings are supporting and descriptive of this teaching, but the scope of this teaching is defined only by the claims. While the best mode and some other embodiments for carrying out this teaching have been described in detail, various alternative designs and embodiments exist for practicing the teaching as defined in the appended claims. Furthermore, this disclosure expressly includes combinations and sub-combinations of the elements and features set forth above and below.

Claims

1. A support and protection device for shoulder joint abduction, characterized in that, include: A shoulder brace having a cavity formed inside to accommodate the shoulder joint, with a support strap at its open end, the support strap being wrapped around the user's chest to fix the position of the shoulder brace. An abduction adjustment mechanism, comprising a first connecting component and a second connecting component respectively disposed on both sides of the shoulder cover; A first support plate for fixing the upper arm, one end of the first support plate is connected to the first connecting component and the second connecting component respectively, the first connecting component and the second connecting component are used to drive the first support plate to rotate, so as to drive the upper arm to rotate, and the other end of the first support plate extends along the length direction of the upper arm; A second support plate is used to secure the forearm, and the second support plate is rotatably connected to the other end of the first support plate.

2. The support and protection device according to claim 1, characterized in that, The first connecting assembly includes a first support and a first swing rod. The first support is disposed on one side of the shoulder cover, one end of the first swing rod is rotatably connected to the first support, and the other end of the first swing rod is connected to one end of the first support plate.

3. The support and protection device according to claim 2, characterized in that, The first support is provided with a first bearing, and one end of the first swing rod is connected to the first bearing.

4. The support and protection device according to claim 1, characterized in that, The second connecting assembly includes a second support and a second swing rod. The second support is disposed on the other side of the shoulder cover, and the second swing rod is rotatably connected to the second support. Two rollers are arranged side by side between the second support and the second swing rod. One end of each roller is rotatably connected to the second support, and the other end of each roller is fixedly connected to the second swing rod. A pull rope is wound around the circumferential wall of each roller, and one end of the pull rope extends downward to pull the pull rope to rotate the roller, thereby driving the second swing rod and the first support plate to rotate.

5. The support and protection device according to claim 4, characterized in that, A flat plate is provided on the other side of the shoulder cover, and the pull cord is threaded through the flat plate. The pull cord is provided with two locking rings, which are located above and below the flat plate, respectively, and are used to limit the range of movement of the pull cord.

6. The support and protection device according to claim 4, characterized in that, The second support is provided with a second bearing, and one end of the second swing rod is connected to the second bearing.

7. The support and protection device according to claim 4, characterized in that, An encoder for monitoring the rotation angle of the roller is provided on one side of the second swing arm.

8. The support and protection device according to claim 1, characterized in that, The upper surface of the first support plate is provided with a first fixing strap, and the inner side of the first fixing strap is provided with multiple airbags for fixing the upper arm.

9. The support and protection device according to claim 1, characterized in that, The upper surface of the second support plate is provided with a second fixing strap, and the inner side of the second fixing strap is provided with multiple airbags for fixing the forearm.

10. The support and protection device according to claim 1, characterized in that, The first support plate and the second support plate are arranged perpendicularly, and a damping hinge for adjusting the rotation angle of the second support plate is provided between them.

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