Shoulder joint subluxation rehabilitation assistive device based on shape memory alloy

Abstract

The utility model discloses a shoulder joint subluxation rehabilitation assistive device based on shape memory alloy, which comprises an upper bracket, a lower bracket, a front bracket and a rear bracket of a main body, and an upper bracket wrapping an affected limb, traction wires made of a shape memory alloy material are connected between the upper limb bracket and the upper bracket and between the upper limb bracket and the rear bracket in a tensioning manner; an elastic belt with adjustable length is arranged among any one or more of the upper bracket, the lower bracket, the front bracket, the rear bracket and the upper limb bracket, so that the bracket is worn on the body of a patient. In the scheme of the embodiment, through the rotatable structure wrapping the large arm and the small arm, on one hand, the supporting strength of the upper limb on the affected side is improved, on the other hand, the small arm on the affected side is allowed to move freely, and the problems of contracture, shoulder inward rotation, reflex sympathetic nervous mental dystrophy and the like caused by the fact that the affected limb keeps buckling for a long time are solved.

Description

Technical Field

[0001] The present application relates to the field of medical devices, and in particular to a shoulder rest. Background Art

[0002] Currently, there are five major methods for treating shoulder subluxation, including support orthosis, among which the support orthosis method is most suitable for patients with early shoulder subluxation and is the most widely used. Its main principle is to lift the patient's dislocated upper limb to a normal position through external force. This wearable auxiliary lifting device is called a shoulder rest.

[0003] The existing clinically applicable shoulder support scheme adopts a distal support method, which lifts the upper limb by supporting the forearm in a bent state. The advantage is that the support is highly reliable, but the disadvantage is that this support requires the elbow to remain in a bent and fixed state, which may further aggravate the flexion contracture of the upper limb and cause internal rotation of the shoulder, further leading to reflex sympathetic dystrophy and inhibiting functional recovery (from the article: Construction of a Physical Device for Abduction Movement Enhancement, 2021). The current solution to this problem is to move the support of the distal forearm to the upper arm, but the problem is that the upward force of the upper limb is only supported by the proximal structure wrapped in the upper arm, but the arm is mainly composed of soft tissue, so the upward force cannot be effectively transmitted to the bones, resulting in low efficiency in reducing subluxation (from the article: Shoulder subluxation after stroke: A comparison of four supports, 1995).

[0004] Therefore, there is no shoulder support in the prior art that can effectively alleviate upper limb flexion contracture, avoid shoulder internal rotation, improve sympathetic nervous system malnutrition, and promote functional recovery. Summary of the invention

[0005] The embodiment of the present application provides a shoulder subluxation rehabilitation aid based on shape memory alloy, which is used to solve the problems of upper limb flexion contracture, shoulder internal rotation, reflex sympathetic neurological dystrophy, etc. caused by long-term fixation of the patient's elbow joint in a flexed position in the shoulder support products in the prior art.

[0006] A shoulder subluxation rehabilitation aid based on shape memory alloy according to an embodiment of the present application comprises:

[0007] The upper support has a hard first frame body that can span the front-back direction of the shoulder and is used to be erected above the shoulder on the affected limb side;

[0008] The lower support has a hard second frame body that can span from the front-to-back direction and surround the waist;

[0009] A front support, connecting the hard third frame in the upper support and the lower support located at the front side of the affected limb;

[0010] A rear support, connecting the hard fourth frame in the upper support and the lower support located at the rear side of the affected limb;

[0011] An upper limb brace, with a rigid fifth frame capable of wrapping around the affected arm;

[0012] A traction wire, made of shape memory alloy, is tensioned and connected between the upper limb support and the upper support, and between the upper limb support and the rear support; and,

[0013] An elastic band is arranged with adjustable length between any one or more of the upper support, the lower support, the front support, the rear support, and the upper limb support so as to wear the support on the patient's body.

[0014] Furthermore, the portion of the upper support located on the front side of the affected limb extends from the front area of ​​the shoulder of the affected limb toward the opposite side of the affected limb and below the shoulder; the portion of the upper support located on the rear side of the affected limb extends from the rear area of ​​the shoulder of the affected limb toward the opposite side of the affected limb and below the shoulder.

[0015] Furthermore, the lower support is in the shape of a semi-open ring, and the lower support is arranged to surround the waist on the side of the affected limb so that the waist on the opposite side of the affected limb is located in the open area.

[0016] Furthermore, the upper limb support includes an upper arm support and a lower arm support, and the upper arm support and the lower arm support are rotatably connected.

[0017] Furthermore, the upper arm support and the lower arm support each include a plurality of sheet-like parts, and the sheet-like parts in corresponding areas are sequentially spliced ​​by means of rotational connection so that the upper arm support and the lower arm support both become semi-open hollow columns.

[0018] Furthermore, a hose is provided on the outside of the traction wire.

[0019] Furthermore, the upper area of ​​the upper bracket corresponding to the upper part of the shoulder, and the area of ​​the rear bracket corresponding to the upper limb bracket are both provided with a plurality of traction wire fixing and adjusting devices.

[0020] Furthermore, the upper area of ​​the upper bracket corresponding to the upper part of the shoulder and the area on the rear bracket corresponding to the upper limb bracket are both provided with a cover body adapted to the frame body so that the traction wire fixing and adjustment device can be built-in.

[0021] Furthermore, the traction wire fixing and adjusting device is a BOA lace buckle.

[0022] Furthermore, a plurality of fixing posts are provided on the upper arm support for cooperating with the BOA strap buckle to tighten the traction wire.

[0023] Beneficial Effects

[0024] The embodiment of the present application provides a shoulder subluxation rehabilitation aid based on shape memory alloy. The aid is worn on the patient by a hard frame and a soft elastic belt. At the same time, the hard frame wrapping the upper arm of the affected limb and the hard frames of the shoulder and the back are fixed respectively by shape memory alloy wire, so that the affected limb can obtain a more reliable upward pulling force and be fixed, which is beneficial to the shoulder reduction. The superelasticity of the shape memory alloy wire is utilized to provide the patient with a stable supporting force during the movement, and the magnitude of the force can also be adjusted by the BOA lacing system. In the scheme of this embodiment, the rotatable structure wrapping the upper arm and the forearm improves the supporting strength of the affected upper limb on the one hand, and allows the affected forearm to move freely on the other hand, and will not cause contracture, shoulder internal rotation, reflex sympathetic dystrophy and other problems due to the long-term flexion of the affected limb. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of the rehabilitation aid according to an embodiment of the utility model;

[0027] Figure 2 This is a front view of a body support in a rehabilitation aid according to an embodiment of the utility model;

[0028] Figure 3 It is a right side view of the body support in the rehabilitation assistive device of the embodiment of the utility model;

[0029] Figure 4 It is a top view of the body support in the rehabilitation assistive device of the embodiment of the utility model;

[0030] Figure 5 It is a top view of a top cover matched with a body support in a rehabilitation aid according to an embodiment of the utility model;

[0031] Figure 6 It is a front view of a top cover matched with a body support in a rehabilitation aid of an embodiment of the utility model;

[0032] Figure 7 This is a front view of a rear cover matched with a body support in a rehabilitation aid of an embodiment of the utility model;

[0033] Figure 8 It is a bottom view of a rear cover matched with a body support in a rehabilitation aid of an embodiment of the utility model;

[0034] Fig. 9 This is a front view of an upper limb support in a rehabilitation assistive device according to an embodiment of the utility model;

[0035] Fig.10 It is a top view of the upper limb support in the rehabilitation assistive device of the embodiment of the utility model;

[0036] Fig.11 It is a right side view of the upper limb support in the rehabilitation assistive device of the embodiment of the utility model.

[0037] In the figure, the meanings of the reference numerals are as follows:

[0038] 1. Upper bracket 2. Front bracket 3. Rear bracket 4. Lower bracket 5. Adjustment area 5-1. Support column

[0039] 6-1, through hole 6-2, fixed column 7, upper limb support 7-1, upper arm support 7-2, lower arm support

[0040] 7-3, upper and lower connecting hinges 7-4, left and right connecting hinges 8, top cover 8-1, buckle 9, back cover

[0041] 10-1, Arm elastic band 10-1-1 Arm elastic band with holes 10-2, Shoulder elastic band

[0042] 10-2-1, shoulder elastic band perforation 10-3, chest elastic band 10-3-1, chest elastic band perforation

[0043] 10-4, waist elastic band 10-4-1, waist elastic band perforation 11, traction wire 12-1, connection hole

[0044] 12-2. Connecting shaft DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] The embodiments of the present application provide a shoulder subluxation rehabilitation aid based on shape memory alloy, which utilizes a hard frame and an elastic bandage to enable the rehabilitation aid to be worn on the patient, and simultaneously utilizes a traction wire to pull the frame at the upper arm of the affected limb so that the affected limb can be accurately positioned. Thus, the rehabilitation aid is different from the traditional shoulder support that relies on flexion of the affected limb to achieve traction, and has good fixation effect, large range of motion of the affected limb, and is not prone to contracture, shoulder internal rotation, reflex sympathetic nervous system dystrophy and other problems caused by long-term flexion of the affected limb.

[0049] like Figure 1 As shown in the figure, it is a schematic diagram of a shoulder subluxation rehabilitation aid based on shape memory alloy provided in this embodiment, hereinafter referred to as a rehabilitation aid. In the figure, the rehabilitation aid includes:

[0050] The upper support 1 has a hard first frame that can span the front-to-back direction of the shoulder and is used to be erected above the shoulder on the affected limb side.

[0051] The lower support 4 has a hard second frame that can span from the front-to-back direction and surround the waist.

[0052] The front support 2 is connected to the hard third frame located at the front side of the affected limb in the upper support 1 and the lower support 4.

[0053] The rear support 3 is connected to the hard fourth frame located at the rear part of the affected limb in the upper support 1 and the lower support 4 at the same time.

[0054] The upper limb support 7 has a hard fifth frame that can wrap the affected arm.

[0055] The traction wire 11 is made of shape memory alloy and is tensionedly connected between the upper limb support 7 and the upper support 1 and between the upper limb support 7 and the rear support 3 .

[0056] An elastic band with adjustable length is arranged between any one or more of the upper support 1, the lower support 4, the front support 2, the rear support 3, and the upper limb support 7 so as to wear the support on the patient's body.

[0057] In order to facilitate the wearing of the support and ensure that the support is firmly worn, the hard part of the rehabilitation aid is designed as a semi-open form, wherein the upper support 1, the lower support 4, the front support 2 and the rear support 3 are worn on the shoulders, chest and waist and abdomen of the patient's upper body, and the upper limb support 7 is worn on the patient's affected limb. After the hard part is worn, the open part is further fixed to the patient's trunk by connecting a soft elastic bandage, so that the hard support can fit the patient's body, and patients of different body types can adjust the length of the elastic band to obtain a better fit. The upper limb support 7 is fixed to the upper support 1 and the rear support 3 by the traction wire 11, so as to achieve traction of the affected limb, ensure the recovery effect, and take into account the activity of the affected limb to the greatest extent. The length of the traction wire 11 is adjustable. When wearing, the length of the traction wire is longer to facilitate wearing the support to a suitable position. When the position of the support is adjusted, the length of the traction wire 11 is shortened so that the affected limb is effectively pulled and limited.

[0058] In this embodiment Figure 1 The rehabilitation aid shown is suitable for patients with left shoulder dislocation. Figure 1 The rehabilitation aid for the right shoulder is similar to the rehabilitation aid in this embodiment, and is designed to be bilaterally symmetrical as a whole, and will not be described again.

[0059] like Figure 2-Figure 4 As shown, in an embodiment of the present application, the upper bracket 1, the lower bracket 4, the front bracket 2 and the rear bracket 3 form an integrated structure, and are 3D printed using resin materials.

[0060] Among them, Figure 2As shown, the portion of the upper support 1 located at the front side of the affected limb extends from the front area of ​​the shoulder of the affected limb to the opposite side of the affected limb and below the shoulder; the portion of the upper support 1 located at the rear side of the affected limb extends from the rear area of ​​the shoulder of the affected limb to the opposite side of the affected limb and below the shoulder. In some preferred embodiments, in order to stably fix the upper support 1, such as Figure 3 and Figure 4 As shown, the extension length in the front region may extend to pass through the midline of the patient's body, and the extension length in the rear region may extend to near the midline of the patient's body. Figure 1 As shown, shoulder elastic band holes 10-2-1 are respectively provided at the ends of the upper bracket 1 in the front region and the ends of the upper bracket 1 in the rear region, and the shoulder elastic band 10-2 is passed through the shoulder elastic band holes 10-2-1 and is tightened and hung on the shoulder on the opposite side of the affected limb to cooperate in fixing the bracket in the up and down directions. Since the shoulder elastic band 10-2 has a load-bearing function, the shoulder elastic band 10-2 includes a wide elastic band and a movable soft pad to provide a more comfortable experience for the shoulder.

[0061] Among them, Figure 2 As shown, the lower support 4 is a semi-open ring, and the lower support 4 is arranged around the waist on the side of the affected limb so that the waist on the opposite side of the affected limb is located in the open area. In order to ensure that the lower support 4 is in reliable contact with the body, as shown in FIG. Figure 1 As shown, waist elastic belt holes 10-4-1 are respectively provided at both ends of the annular opening of the lower support 4, and the waist elastic belt 10-4 is passed through the waist elastic belt holes 10-4-1 and tightened to the waist on the opposite side of the affected limb. Specifically, the waist elastic belt 10-4 has male and female surfaces of Velcro, and the user can adjust the length of the waist elastic belt 10-4 and fix it with Velcro.

[0062] Among them, Figure 2 As shown, the rear support 3 is approximately located at the back position corresponding to the patient's chest. The rear support 3 is plate-shaped and can provide the patient's back with a relatively even force to improve comfort. In some preferred embodiments, in order to fit the patient's back, the rear support 3 is ergonomically designed. Figure 1 As shown, a chest elastic band through hole 10-3-1 is respectively provided at one end of the rear support 3 on the opposite side of the affected limb and at the end of the upper support 1 in the front area, and the chest elastic band 10-3 is passed through the chest elastic band through hole 10-3-1 and is tightened and attached to the side of the chest cavity on the opposite side of the affected limb. Specifically, the chest elastic band 10-3 has a male and female surface of Velcro, and the user can adjust the length of the chest elastic band 10-3 and fix it with Velcro.

[0063] like Figure 1 , Fig. 9 , Fig.10 and Fig.11 As shown, the upper limb support 7 includes an upper arm support 7-1 and a lower arm support 7-2, and the upper arm support 7-1 and the lower arm support 7-2 are rotatably connected. The rotation between the upper arm support 7-1 and the lower arm support 7-2 simulates the elbow joint of a human hand. In some embodiments, the rotation is achieved by setting an upper and lower connecting hinge 7-3, and the rotation axis of the upper and lower connecting hinge 7-3 is arranged perpendicular to the arm length direction. Specifically, as Fig. 9 and 10 The upper and lower connecting hinges 7-3 include three coaxial discs, wherein the center of the middle disc is fixed at the end of the upper arm support 7-1, and the centers of the two discs on both sides are respectively fixed at the ends of the lower arm support 7-2, the ends of the upper arm support 7-1 and the ends of the lower arm support 7-2 are adjacent, and the middle disc is accommodated between the two discs on both sides. Through the above structure, the lower arm of the affected limb can rotate relative to the upper arm to provide the patient with relatively more mobility, and there will be no problems such as contracture, shoulder internal rotation, reflex sympathetic nerve malnutrition caused by keeping the arm flexed in the existing rehabilitation assistive devices.

[0064] In some preferred embodiments, the upper arm support 7-1 and the lower arm support 7-2 each include a plurality of sheet-like parts, and the sheet-like parts in corresponding areas are sequentially spliced ​​by means of rotational connection so that the upper arm support 7-1 and the lower arm support 7-2 both become semi-open hollow columns. Fig. 9 As shown, taking the upper arm support 7-1 as an example, the upper arm support 7-1 includes two left and right thin arc plates, both of which are approximately half of a cylindrical surface, and the shapes of one side of the two arc plates match each other and are spliced ​​together by a left and right connecting hinge 7-4 to form an approximately hollow cylinder. The rotating shafts of the left and right connecting hinges 7-4 are arranged along the arm length direction. Through the above hinge structure, the left and right arc plates can rotate around the rotating shafts of the left and right connecting hinges 7-4, so that the size of the internal space formed by the left and right arc plates can be changed. At the same time, the size of the opening on the side opposite to the left and right connecting hinges 7-4 on the upper arm support 7-1 can be changed. In order to make the upper arm support 7-1 close to the affected limb, arm elastic band perforations 10-1-1 are respectively provided on the arc plates on both sides of the opening of the upper arm support 7-1, and the upper arm support 7-1 is bound to the upper arm of the affected limb by passing the arm elastic band 10-1 through the arm elastic band perforations 10-1-1. The elastic arm band 10 - 1 has male and female surfaces of Velcro, and the user can adjust the length of the elastic arm band 10 - 1 and fix it with Velcro to meet the needs of different patients with different arm thicknesses. Fig.11 As shown, the small arm bracket 7-2 has a similar design to the large arm bracket 7-1, which will not be described in detail here.

[0065] like Figure 1As shown, the left and right connecting hinges 7-4 of the upper arm support 7-1 and the lower arm support 7-2 are located behind the affected limb, and the arc-shaped plate between the left and right connecting hinges 7-4 on the upper arm support 7-1 and the lower arm support 7-2, that is, the area between the upper and lower connecting hinges 7-3 is hollowed out, so that the area behind the elbow of the affected limb is not restricted.

[0066] In order to be able to install and adjust the traction wire 11, as Figure 1 , Figure 4 As shown, the upper area of ​​the upper bracket 1 corresponding to the upper part of the shoulder, and the area on the rear bracket 3 corresponding to the upper limb bracket 7 are both the layout areas of the traction wire 11 fixing and adjusting device, referred to as the adjustment area 5. Correspondingly, a plurality of fixing columns 6-2 are arranged on the upper arm bracket 7-1 of the upper limb bracket 7 to cooperate with the traction wire fixing and adjusting device to fix the traction wire 11.

[0067] The traction wire fixing and adjusting device is a BOA buckle. Each BOA buckle is a cylindrical structure, which can be fixed in the adjustment area 5 by gluing or other methods, and the length of the traction wire 11 can be adjusted quickly and reliably by the BOA buckle.

[0068] like Figure 4 As shown, the adjustment area 5 of the upper bracket 1 is located just above the shoulder. In addition to a number of BOA buckles, the area is also provided with a number of support columns 5-1. The area is integrally sunken into the streamlined outer surface of the entire upper bracket 1. Figure 5 and Figure 6 The top cover 8 shown in the figure is provided with a plurality of buckles 8-1 which are adapted to snap into position with the upper bracket 1. The top cover 8 is supported by the support column 5-1 on this area. The top cover 8 cooperates with this area so that the outer surface of the top cover 8 and the outer surface of the upper bracket 1 form a streamlined overall outer surface. In this way, the BOA buckle can be built-in, thereby ensuring that the traction wire 11 is not easily adjusted by mistake. Figure 1 As shown, in this embodiment, in order to provide uniform traction to the affected limb, four BOA strap buckles are provided at the upper bracket 1 and are evenly arranged along the front-to-back direction of the shoulder.

[0069] like Figure 3 As shown, the outer surface of the rear bracket 3 is an adjustment area 5, which is provided with a plurality of connecting shafts 12-2 in addition to a plurality of BOA buckles. Figure 7 and 8As shown, the rear cover 9 is adapted to the rear bracket 3. The rear cover 9 is a three-dimensional structure with a certain space formed inside. The rear cover 9 is provided with a connection hole 12-1 adapted to the connection shaft 12-2. The rear cover 9 is connected by the mortise and tenon assembly of the connection shaft 12-2 and the connection hole 12-1, so that a certain space is formed between the rear cover 9 and the outer surface of the rear bracket 3, and the BOA buckle is arranged in this space. Figure 1 As shown, in this embodiment, in order to provide reliable limiting for the affected limb, two BOA strap buckles are provided at the rear support 3 and are arranged roughly in the up and down direction.

[0070] In order to facilitate the routing of the traction wire 11, a through hole 6-1 is provided on the upper bracket 1 and the rear cover 9, respectively. The traction wire 11 is led out from the BOA strap buckle and passes through the through hole 6-1 and then connected to the fixing column 6-2. Figure 1 As shown, in this embodiment, the fixing columns 6-2 include 6, of which 4 fixing columns 6-2 correspond to the 4 BOA strap buckles of the upper bracket 1, 2 of the 4 fixing columns 6-2 are located in front of the upper arm bracket 7-1 and one on each of the left and right arc-shaped plates, and the other 2 of the 4 fixing columns 6-2 are located behind the upper arm bracket 7-1 and one on each of the left and right arc-shaped plates; the other 2 of the 6 fixing columns 6-2 correspond to the 2 BOA strap buckles on the rear bracket 3, and these two fixing columns 6-2 are located on the arc-shaped plate behind the upper arm bracket 7-1 close to the side of the rear bracket 3.

[0071] In order to protect the traction wire 11, in some embodiments, a silicone hose is provided outside the traction wire 11. Each traction wire 11 is folded in half, inserted into the hollow silicone hose, and the two ends of the wire are inserted into the BOA strap buckle. The traction wire 11 is led out of the BOA strap buckle and the ring end passing through the end of the silicone hose is hung on the fixing column 6-2. In the actual process of wearing the product, the length of the traction wire 11 is shortened by tightening the BOA strap buckle to lift the upper limbs of the user. When the traction wire 11 is shortened, the silicone tube outside it is squeezed and shortened.

[0072] In the above-mentioned embodiments, the diameter of the traction wire 11 is about 0.2 mm, the total length is about 400 mm, the inner diameter of the silicone hose is about 2 mm, and the outer diameter is about 3 mm.

[0073] When wearing, first wear the upper support 1, lower support 4, front support 2 and rear support 3 of the integrated structure onto the patient from the affected side, place the affected limb on the outside of the lower support 4, and pass the shoulder elastic belt 10-2 around the patient's head and fall on the shoulder opposite to the affected side; adjust the length of the chest elastic belt 10-3 and the waist elastic belt 10-4 until the above-mentioned upper support 1, lower support 4, front support 2 and rear support 3 are in close contact with the torso; then, gently rotate the patient's upper limb to palm up, open the upper limb support 7 and cover the patient's arm upward, ensure that the upper and lower connecting hinges 7-3 are on the same horizontal line with the elbow, and adjust the length of the arm elastic belt 10-1 to enable the upper limb support 7 to be fixed on the affected limb; then, put the movable end of the traction wire 11 on the fixed column 6-2, lift the patient's affected upper limb upward to a neutral position, rotate the BOA strap buckle with the other hand until the traction wire 11 is completely tightened, and finally cover the top cover 8 and the back cover 9 to complete the wearing.

[0074] The rehabilitation aid of this embodiment makes full use of the shape memory effect and superelasticity of shape memory alloy. Compared with existing products, it avoids the limitation of the existing products on the mobility of the forearm on the basis of ensuring the strength of shoulder joint reduction. At the same time, it provides lateral pulling force on the back, which also improves the problem of internal rotation of the patient's shoulder. By utilizing the superelasticity of the memory alloy wire, it can also provide stable support force to the patient during movement, and the magnitude of the force can also be adjusted through the BOA lacing system. Clinical trials have been conducted in Zhongshan Hospital Affiliated to Fudan University. Through the X-ray method, the patient's dislocation reached one finger width before wearing. After wearing, the patient's shoulder joint was found to be reduced to the normal position (less than half a finger width) through X-ray.

[0075] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A shoulder subluxation rehabilitation aid based on shape memory alloy, characterized in that: include The upper support has a hard first frame body that can span the front-back direction of the shoulder and is used to be erected above the shoulder on the affected limb side; The lower support has a hard second frame body that can span from the front-to-back direction and surround the waist; A front support, connecting the hard third frame in the upper support and the lower support located at the front side of the affected limb; A rear support, connecting the hard fourth frame in the upper support and the lower support located at the rear side of the affected limb; An upper limb brace, with a rigid fifth frame capable of wrapping around the affected arm; A traction wire, made of shape memory alloy, is tensioned and connected between the upper limb support and the upper support, and between the upper limb support and the rear support; and, An elastic band is arranged with adjustable length between any one or more of the upper support, the lower support, the front support, the rear support, and the upper limb support so as to wear the support on the patient's body.

2. The shape memory alloy-based shoulder subluxation rehabilitation aid according to claim 1, characterized in that: The portion of the upper support located at the front side of the affected limb extends from the front area of ​​the shoulder of the affected limb toward the opposite side of the affected limb and below the shoulder; the portion of the upper support located at the rear side of the affected limb extends from the rear area of ​​the shoulder of the affected limb toward the opposite side of the affected limb and below the shoulder.

3. The shape memory alloy-based shoulder subluxation rehabilitation aid according to claim 1, characterized in that: The lower support is in the shape of a semi-open ring, and the lower support is arranged around the waist on the side of the affected limb so that the waist on the opposite side of the affected limb is located in the open area.

4. The shape memory alloy-based shoulder subluxation rehabilitation aid according to claim 1, characterized in that: The upper limb support comprises an upper arm support and a lower arm support, and the upper arm support and the lower arm support are rotatably connected.

5. The shape memory alloy-based shoulder subluxation rehabilitation aid according to claim 4, characterized in that: The upper arm bracket and the lower arm bracket both include a plurality of sheet-like parts, and the sheet-like parts in corresponding areas are sequentially spliced ​​by means of rotational connection so that the upper arm bracket and the lower arm bracket both become semi-open hollow columns.

6. The shape memory alloy-based shoulder subluxation rehabilitation aid according to claim 1, characterized in that: The outer part of the traction wire is covered with a hose.

7. The shape memory alloy-based shoulder subluxation rehabilitation aid according to any one of claims 1 to 6, characterized in that: The upper area of ​​the upper support corresponding to the upper part of the shoulder, and the area of ​​the rear support corresponding to the upper limb support are both provided with a plurality of traction wire fixing and adjusting devices.

8. The shape memory alloy-based shoulder subluxation rehabilitation aid according to claim 7, characterized in that: The upper area of ​​the upper bracket corresponding to the upper part of the shoulder and the area on the rear bracket corresponding to the upper limb bracket are both provided with a cover body adapted to the frame body so that the traction wire fixing and adjusting device can be built-in.

9. The shape memory alloy-based shoulder subluxation rehabilitation aid according to claim 7, characterized in that: The traction wire fixing and adjusting device is a BOA lacing buckle.

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