A shoulder joint rehabilitation training brace

Abstract

A shoulder joint rehabilitation training brace, wherein the trunk guard plate on the trunk support, the upper arm guard plate on the upper arm support, and the forearm guard plate on the forearm support are respectively placed on the human trunk, upper arm, and forearm to form support; the forearm support and the upper arm support are hinged at the human elbow, and the trunk support and the upper arm support are connected through a joint rotor and a joint support, the middle part of the joint rotor is rotatable and the two ends are respectively hinged to the upper arm support and the joint support to achieve rotation in multiple directions and dimensions, and an isokinetic muscle trainer can also be installed at the hinged parts between the components, and the isokinetic muscle trainer forms a resistive isokinetic motion through the isokinetic muscle trainer to better exercise muscle strength. The shoulder joint rehabilitation training brace has a simple structure and is easy to wear, and has excellent fixing and supporting effects, and can achieve movement in multiple directions, thereby facilitating patients to complete various active and passive movements required for rehabilitation, greatly improving the rehabilitation effect.

Description

Technical Field

[0001] The invention relates to a medical device, in particular to a brace for shoulder joint rehabilitation training. Background Art

[0002] The shoulder joint is the connection between the upper limb and the trunk of the human body. It is composed of the scapula glenoid cavity and the humeral head. It is a ball-and-socket joint and the largest and most flexible joint in the upper limb. When people's shoulder joints are damaged, they need to rely on corresponding surgery or rehabilitation methods to treat the shoulder joints, and shoulder arthroscopy is a common and effective surgical treatment method. After shoulder surgery, in order to improve the rehabilitation effect and speed of rehabilitation, it is also necessary to properly cooperate with various rehabilitation exercises, such as pendulum exercises, passive external rotation, assisted active exercise or active exercise, etc. On the other hand, in order to protect the shoulder joint from postoperative trauma and to facilitate rehabilitation exercises, surgical patients also need to wear suitable rehabilitation training braces according to the situation. However, the existing rehabilitation training braces have relatively single functions, and many rehabilitation movements cannot be effectively completed, resulting in them being able to only serve as support tools, but cannot assist in the conduct of rehabilitation exercises, which greatly affects the patient's rehabilitation effect; at the same time, the wearing operation of these braces is also extremely troublesome and time-consuming. If they are worn improperly, they are likely to cause shoulder joint pain and even secondary injuries. Summary of the invention

[0003] The purpose of the present invention is to provide a shoulder joint rehabilitation training brace which has a simple structure but can assist in performing a variety of rehabilitation exercises, so as to help patients better perform rehabilitation training and improve the rehabilitation effect.

[0004] The shoulder joint rehabilitation training brace described in the present invention comprises a trunk support, an upper arm support and a forearm support which are respectively arranged opposite to the trunk, upper arm and forearm parts of a human body; a trunk guard plate, an upper arm guard plate and a forearm guard plate which are respectively installed on the trunk support, the upper arm support and the forearm support and are mutually supported and positioned with respect to the parts of the human body; the adjacent ends of the forearm support and the upper arm support are opposite to the elbow part of the human body and are hinged to each other, and the rotation direction of the hinged end is consistent with the elbow part of the human body; there are also a joint support, a joint rotor which can rotate circumferentially in the middle part and a retractable telescopic rod, one end of the joint support is fixed on the trunk guard plate or the trunk support, and the other end extends to be opposite to the shoulder joint, the two ends of the joint rotor are respectively hinged to the joint support and the upper arm support, and the axes of the two hinged ends of the joint rotor are parallel to the rotation plane in the middle part, and the two ends of the telescopic rod are respectively connected to the upper arm support and the trunk support through a universal ball assembly.

[0005] The shoulder joint rehabilitation training brace described in the present invention comprises a trunk guard plate on a trunk support, an upper arm guard plate on an upper arm support, and a forearm guard plate on a forearm support, which are respectively placed against the human trunk, upper arm, and forearm to support the parts of the human body that have associated movements with the shoulder joint; the ends of the forearm support and the upper arm support are opposite to the human elbow and can rotate accordingly, so that the patient can complete the flexion and extension of the forearm; and the joint support extends from the human trunk position (on the trunk support or the trunk guard plate) to the shoulder joint position, the middle part of the joint rotor can rotate and the two ends are respectively hinged to the joint support and the upper arm support, so that the patient's upper arm can achieve lifting, twisting and other movements; and during the movement of the upper arm, the telescopic rod can be retracted and retracted accordingly, and the universal ball assemblies at both ends are rotated in corresponding directions with the trunk position and the upper arm support to continuously and stably support the upper arm. It can be seen that this shoulder joint rehabilitation training brace can not only provide continuous and stable support and positioning to the human hand and shoulder joint, but also enable patients to easily perform various common human movements such as flexion, extension, abduction, adduction, internal rotation, external rotation, circumduction, etc., so that various rehabilitation exercises can be better completed and the treatment and rehabilitation effects of the shoulder joint can be improved; and the shoulder joint rehabilitation training brace has a simple and lightweight structure, and is extremely easy to wear and operate, which can improve people's wearing convenience and willingness to use, and can also avoid secondary damage to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a structural diagram of a shoulder joint rehabilitation training brace.

[0007] Figure 2-4 It is a schematic diagram of the connection structure between the trunk bracket, the universal ball assembly and the telescopic rod.

[0008] Figure 5 , 6 It is a structural schematic diagram of the upper arm support and its two hinged ends.

[0009] Figure 7 It is a structural schematic diagram of the forearm support.

[0010] Figure 8 It is a schematic diagram of the structure of the joint rotor.

[0011] Fig. 9 This is a schematic diagram of the installation of an isokinetic strength trainer.

[0012] Fig.10 , 11 It is a schematic diagram of the explosion structure of the isokinetic muscle trainer.

[0013] Fig.12 , 13 It is a schematic diagram of the connection structure of the internal components of the isokinetic muscle trainer. DETAILED DESCRIPTION

[0014] A shoulder joint rehabilitation training brace comprises a trunk support 1, an upper arm support 2 and a forearm support 3 which are respectively arranged opposite to the trunk, upper arm and forearm parts of a human body; a trunk guard plate 4, an upper arm guard plate 5 and a forearm guard plate 6 which are respectively installed on the trunk support, the upper arm support and the forearm support and are mutually supported and positioned with the parts of the human body; the adjacent ends of the forearm support and the upper arm support are opposite to the elbow part of the human body and are hinged to each other, and the rotation direction of the hinged end is consistent with the elbow part of the human body; there are also a joint support 7, a joint rotor 8 which can rotate circumferentially in the middle part and a telescopic rod 10 which can be telescoped, one end of the joint support is fixed on the trunk guard plate or the trunk support, and the other end extends to be opposite to the shoulder joint, the two ends of the joint rotor are respectively hinged to the joint support and the upper arm support, and the axes of the two hinged ends of the joint rotor are parallel to the rotation plane in the middle part, and the two ends of the telescopic rod are respectively connected to the upper arm support and the trunk support through a universal ball assembly 9.

[0015] The shoulder joint rehabilitation training brace described herein places the trunk guard against the side of the human body's trunk, such as the chest or abdomen, and places the upper arm guard and the forearm guard against the side of the arm opposite to the trunk guard. Then, a telescopic rod is installed between the upper arm support and the trunk support, so that the telescopic rod supports the arm based on the trunk. In this way, combined with the hinge points between the joint support and the various components, the patient can also very conveniently perform various common human movements such as flexion, extension, abduction, adduction, internal rotation, external rotation, circumduction, etc., so that various rehabilitation exercises can be better completed, and the treatment and rehabilitation effects of the shoulder joint can be improved.

[0016] The shoulder joint rehabilitation training brace described herein has a trunk support 1 extending along the side of the human trunk, on which two or more trunk guards can be installed. The trunk support is also provided with a guide groove 11 along the side of the human trunk, and a slider 12 moving along the guide groove. A limit block 13 is installed at the end of the guide groove 11 to prevent the slider from sliding out; at the same time, there is also a locking component for locking the slider at different positions of the guide groove; the locking component can be a lock buckle, a card block, etc., and can also be as Figure 2 , 3As shown in , 4, it includes a plurality of locking holes 14 arranged in parallel and at intervals along the direction of the guide groove 11 on the trunk bracket 1, a positioning hole parallel to the axial direction of the locking hole is provided on the slider, and a positioning rod 15 passes through the locking hole and the positioning hole to fix the slider on the trunk bracket; in addition, the universal ball assembly 9 between the trunk bracket 1 and the telescopic rod includes a universal ball 91 fixedly mounted on the end of the telescopic rod 10, and a universal seat 92 fixedly mounted on the slider, the universal seat is provided with an inner liner 93 covering the universal ball and only allowing the universal ball to rotate, and a locking ring 94 locking the universal ball to the inner liner; and the universal ball assembly between the upper arm bracket and the telescopic rod can similarly fix the universal ball on the telescopic rod, and fix the universal seat with a locking ring on the upper arm bracket.

[0017] Through the setting of the shoulder joint rehabilitation training brace, the supporting direction of the telescopic rod to the forearm support can be easily adjusted to meet the use needs of people with different physiques and people in different rehabilitation stages; and the setting of multiple trunk guards can improve the stability of protection and support; the selection of the locking assembly can reduce the complexity of the structure, meet the locking needs through the use of its simple structure, and improve the convenience of operation; in the universal ball assembly, the universal ball and the universal seat can be set on two parts respectively, but the universal ball is set on the telescopic rod, which is conducive to improving the convenience of rotation. In addition, the telescopic rod 10 can be a retractable damper, which can increase the movement resistance, consume the movement energy, and provide quantitative resistance for the active movement of the shoulder joint to meet the strength requirements of the rehabilitation movement. At the same time, dampers of different specifications can be selected according to the individual differences of the patients, and the torque and resistance can be changed by adjusting the position of the slider to meet different rehabilitation needs.

[0018] The shoulder joint rehabilitation training brace, such as Figure 5 , 6 As shown, the upper arm support 2 includes two upper arm support plates 21 that are partially overlapped, and strip holes 22 are relatively provided at the overlapping positions of the two upper arm support plates. The upper arm guard plate 5 is provided with threaded holes or nuts 51 are installed. There is also a locking screw 23 with a cap head and the cap head diameter is larger than the width of the strip hole. The locking screw passes through the strip holes of the two upper arm support plates and is fixedly connected to the threaded holes or nuts on the upper arm guard plates, so that the two upper arm support plates are relatively fixed by the locking screw, and the upper arm guard plates are also fixed to the upper arm support. The length of the upper arm support structure can be adjusted very conveniently to meet the needs of people with different physiques. Similarly, if Figure 7 As shown, the forearm support 3 may also be provided with a strip hole 22, and the locking screw 23 passes through the strip hole and is screwed and fixed to the forearm guard plate 6, so that the forearm guard plate can be adjustably fixed to different positions of the strip hole of the forearm support to meet the usage needs of different groups of people.

[0019] The shoulder joint rehabilitation training brace described above, the joint rotor 8 includes two small rotors 81, one end of the two small rotors is relatively provided with a rotating table 82, and the two rotating tables can rotate circumferentially relative to each other, such as through a hinge shaft, a bearing connection, etc.; in addition, the other ends of the two small rotors are respectively provided with hinge plates 83 hinged to other parts, and the hinge plates are provided with hinge through holes 84 for hinge connection, and the rotation planes of the axes of the two hinge through holes are parallel to the rotation plane of the rotating table; Figure 8 As shown, the rehabilitation training brace can form multi-dimensional movements through the joint rotor, and the structure of the joint rotor is extremely simple, and the working process is smooth and stable.

[0020] The shoulder joint rehabilitation training brace described above can be realized by a general hinge method between the forearm support and the upper arm support, between the upper arm support and the joint trochanter, and between the joint trochanter and the joint support to meet the rotation requirements in all directions, but these can only meet the patient's needs for active movement. In addition to active movement, the patient also needs to purposefully cooperate with rehabilitation treatment to perform passive movement. To this end, cover plates 20 are respectively provided at the two hinged ends of the upper arm bracket 2 and the hinged end of the joint bracket 7, the hinged end of the forearm bracket and the two hinged ends of the joint rotor are respectively arranged between the upper arm bracket and the cover plate, and between the joint bracket and the cover plate, and there is also a hinge shaft 30 that passes through the hinged ends between the components to hinge and fix the components, and the middle part of the hinge shaft is fixedly connected to the forearm bracket or the joint rotor or is provided with a clamping structure that is mutually clamped along the circumferential direction; a drive motor is also installed on the cover plate, and the drive motor can be a stepping motor. The rotating shaft of the drive motor is fixedly connected to the hinge shaft. When the drive motor is working, it drives the hinge shaft to rotate through the rotating shaft, and the hinge shaft drives the two ends of the forearm bracket or the joint rotor to rotate through the clamping structure, so that during rehabilitation exercises, preset instructions and movement methods are input into the drive motor through the computer to drive the patient to perform specific passive exercises, thereby greatly improving the rehabilitation effect; and the use of a stepping motor can improve movement accuracy and working stability. The engaging structure can be a plurality of gear teeth arranged circumferentially in the middle of the articulated shaft, and tooth grooves matching the gear teeth are correspondingly arranged on the forearm bracket or the joint rotor, so as to realize the drive in the form of a gear pair; or the articulated shaft is fixedly installed on the forearm bracket or the joint rotor, and the driving motor directly drives the forearm bracket or the joint rotor to rotate through the articulated shaft.

[0021] Alternatively, an isokinetic muscle trainer 40 may be installed between the forearm support 3 and the upper arm support 2, and / or between the upper arm support and the joint rotor 8, and / or between the joint rotor and the joint support 7; the isokinetic muscle trainer 40 comprises a housing 41 and an arc-shaped rack 42 respectively fixedly mounted at both ends of the hinged component, a large gear 43 and a small gear 44 are coaxially mounted in the housing, a transmission gear 46 and a counterweight flywheel 47 connected by a ratchet mechanism 45 are also arranged in the housing, and the transmission gear and the large gear are meshed with each other, and the arc-shaped rack passes through the housing and meshes with the small gear. Figure 1 and 9 -13, the shell and arc-shaped teeth of the isokinetic muscle trainer are respectively fixedly installed at the two ends of the hinged parts, such as the shell is installed on the cover plate, and the arc-shaped rack is installed on the upper arm bracket, forearm bracket or joint bracket opposite thereto, and the arc-shaped rack passes through the shell and meshes with the large gear inside it; when the patient's arm is closed and rotated, the arc-shaped rack and the shell will be driven to rotate relative to each other, and the arc-shaped rack will drive the large gear in the shell to produce low-speed and high-torque rotation, and then drive the transmission gear to rotate at high speed through the small gear, and then drive the counterweight flywheel to rotate at high speed through the ratchet mechanism; and because the counterweight flywheel is heavy and has large inertia, it will continue to rotate for a certain period of time at a high initial velocity, thereby generating centrifugal force, and then its rotation speed will gradually decrease until the next movement cycle, when there will be a speed difference between the ratchet mechanism and the flywheel, thereby generating a certain reaction force, which will have a resistance effect and form isokinetic motion. As a result, patients can experience stable resistance during rehabilitation exercises, which has the effect of exercising muscle strength. By adjusting the weight of the flywheel to change its inertia and the reduction ratio of the transmission gear, the resistance can be adjusted to provide different isokinetic resistances for appropriate exercise.

Claims

1. A shoulder joint rehabilitation training brace, comprising a trunk support (1), an upper arm support (2), and a forearm support (3) respectively arranged relative to a human trunk, an upper arm, and a forearm, wherein the trunk support, the upper arm support, and the forearm support are respectively provided with a trunk guard plate (4), an upper arm guard plate (5), and a forearm guard plate (6) which are mutually supported and positioned with respect to the human body parts, and characterized in that: The adjacent ends of the forearm bracket and the upper arm bracket are opposite to the elbow of the human body and are hinged to each other, and the rotation direction of the hinged end is consistent with the elbow of the human body; there is also a joint bracket (7), a joint rotor (8) that can rotate in the middle direction, and a telescopic rod (10) that can be telescoped. One end of the joint bracket is fixed to the trunk guard plate or the trunk bracket, and the other end extends to the opposite side of the shoulder joint. The two ends of the joint rotor are respectively hinged to the joint bracket and the upper arm bracket, and the axes of the two hinged ends of the joint rotor are parallel to the rotation plane in the middle. The two ends of the telescopic rod are respectively connected to the upper arm bracket and the trunk bracket through a universal ball assembly (9); a guide groove (11) is provided on the trunk bracket (1) along the side of the human body, and a slider (12) that moves along the guide groove is provided, and a locking assembly that locks the slider at different positions of the guide groove; the universal ball assembly (9) between the trunk bracket (1) and the telescopic rod (10) includes a universal ball (91) fixedly installed on the end of the telescopic rod, and a universal seat (92) fixedly installed on the slider. ), the universal seat is provided with an inner liner (93) covering the universal ball and allowing only the universal ball to rotate, and a locking ring (94) locking the universal ball to the inner liner; the upper arm bracket (2) comprises two upper arm support plates (21) partially overlapping each other, the overlapping positions of the two upper arm support plates are oppositely provided with strip holes (22), the upper arm guard plate (5) is provided with a threaded hole or a nut (51) is installed; there is also a locking screw (23) with a cap head and the diameter of the cap head is larger than the width of the strip hole, the locking screw is passed through The joint rotor (8) passes through the strip holes of the two upper arm support plates and is fixedly connected to the threaded holes or nuts on the upper arm guard plates; the joint rotor (8) comprises two small rotors (81), one end of the two small rotors is provided with a rotating table (82) opposite to each other, the two rotating tables can rotate in the circumferential direction relative to each other, the other ends of the two small rotors are respectively provided with hinge plates (83) hinged to other parts, the hinge plates are provided with hinge through holes (84) for hinge connection, and the rotation planes of the axes of the two hinge through holes are parallel to the rotation plane of the rotating table.

2. The shoulder joint rehabilitation training brace according to claim 1, characterized in that: The locking assembly comprises a plurality of locking holes (14) arranged in parallel and spaced relation along the direction of the guide groove (11) on the trunk support (1), a positioning hole axially parallel to the locking hole is provided on the slider, and a positioning rod (15) passes through the locking hole and the positioning hole to fix the slider on the trunk support.

3. The shoulder joint rehabilitation training brace according to claim 1, characterized in that: The telescopic rod (10) is a telescopic damper.

4. The shoulder joint rehabilitation training brace according to claim 1, characterized in that: A strip hole (22) is formed on the forearm support (3), and a locking screw (23) passes through the strip hole and is screwed and fixed to the forearm guard plate (6).

5. The shoulder joint rehabilitation training brace according to any one of claims 1 to 4, characterized in that: Cover plates (20) are respectively provided at the two hinged ends of the upper arm bracket (2) and the hinged end of the joint bracket (7); the hinged end of the forearm bracket and the two hinged ends of the joint rotor are respectively provided between the upper arm bracket and the cover plate, and between the joint bracket and the cover plate; a hinge shaft (30) passes through the hinged ends between the components to hinge and fix the components; and the middle portion of the hinge shaft is fixedly connected to the forearm bracket or the joint rotor or is provided with a clamping structure that is mutually clamped in the circumferential direction; a drive motor is also installed on the cover plate, and the rotating shaft of the drive motor is fixedly connected to the hinge shaft.

6. The shoulder joint rehabilitation training brace according to any one of claims 1 to 4, characterized in that: An isokinetic muscle training device (40) is installed between the forearm support (3) and the upper arm support (2), and / or between the upper arm support and the joint trochanter (8), and / or between the joint trochanter and the joint support (7).

7. The shoulder joint rehabilitation training brace according to claim 6, characterized in that: The isokinetic muscle training device (40) comprises a housing (41) and an arc-shaped rack (42) respectively fixedly mounted on two ends of a hinged component, a large gear (43) and a small gear (44) are coaxially mounted in the housing, a transmission gear (46) and a counterweight flywheel (47) connected via a ratchet mechanism (45) are also arranged in the housing, and the transmission gear and the large gear are meshed with each other, and the arc-shaped rack passes through the housing and is meshed with the small gear.

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