Wrist joint brace

Abstract

The invention provides a wrist joint brace, and belongs to the technical field of medical tools. Comprising a metacarpal bone contact plate, one side of the metacarpal bone contact plate is rotationally connected with an ulna-radius contact plate, and the side, away from the metacarpal bone contact plate, of the ulna-radius contact plate is rotationally connected with a fixing plate; the adjusting assembly is used for adjusting the relative positions of the metacarpal bone contact plate, the ulna-radius contact plate and the fixing plate. According to the wrist joint brace, by arranging the adjusting assembly, the effect of adjusting metacarpal inclination and dorsal extension of the wrist joint of a patient can be achieved, and the effect of adjusting the inward rotation angle and the outward rotation angle of the wrist joint of the patient can be achieved, so that medical staff can adjust the fixing angles of the plate bodies at different positions of the wrist joint brace; the wrist joint brace is simple in structure and suitable for different types of injuries of the wrist joint of a patient, the pertinence of wrist joint fixing is improved, the fixing effect of the wrist joint brace is improved, and the treatment effect and the rehabilitation process of the patient using the wrist joint brace are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of medical tool technology, and in particular to a wrist joint brace. Background Technology

[0002] Most wrist braces on the market are fixed structures, which have the limitation of not being adjustable in terms of fixation angle. However, in actual clinical work, for different types of wrist injuries, it is necessary to fix the wrist joint at different angles according to the specific situation of the injury and the stage of treatment. For example, Colles' fracture in distal radius fractures needs to be fixed in palmar tilt and ulnar deviation in the early stage, and in functional position in the later stage. For distal radius fractures without displacement, it is only necessary to fix in functional position. For stenosing tenosynovitis of the radial styloid process, the wrist needs to be fixed in radial deviation position.

[0003] In summary, since traditional braces are mostly fixed in a neutral position, they cannot provide targeted fixation for different types of wrist joint injuries, resulting in poor fixation effects and affecting treatment outcomes and rehabilitation progress. Therefore, this invention provides a wrist joint brace to meet these needs. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide a wrist brace that, through the inclusion of an adjustment component, not only allows for adjustment of the patient's wrist joint palmar tilt and dorsiflexion, but also for adjustment of the wrist joint's internal and external rotation angles. This enables medical personnel to adjust the fixation angle of the plates at different positions on the wrist brace, making it suitable for different types of wrist injuries. This improves the targeted nature of wrist joint fixation, enhances the fixation effect of the wrist brace, and ensures the therapeutic effect and rehabilitation process for patients using the wrist brace. This design addresses the problem that traditional braces often provide neutral fixation, failing to provide targeted fixation for different types of wrist injuries, resulting in poor fixation and hindering treatment and rehabilitation.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A wrist joint brace includes a metacarpal contact plate, a radius-ulna contact plate rotatably connected to one side of the metacarpal contact plate, and a fixation plate rotatably connected to the side of the radius-ulna contact plate away from the metacarpal contact plate. The metacarpal contact plate, the radius-ulna contact plate, and the fixation plate are all made of polyethylene and have lightweight holes on their surfaces. An adjustment assembly is used to adjust the relative positions between the metacarpal contact plate, the radius-ulna contact plate, and the fixation plate. The adjustment assembly is connected to the metacarpal contact plate, the radius-ulna contact plate, and the fixation plate, respectively.

[0006] Optionally, the adjustment assembly includes a metacarpal adjustment plate, an ulnar-radial adjustment plate, and a fixation adjustment plate, which are respectively screwed and fixed to the metacarpal contact plate, the ulnar-radial contact plate, and the fixation plate. Each of the metacarpal adjustment plate, the ulnar-radial adjustment plate, and the fixation adjustment plate has a strap mounting hole on both sides for installing Velcro straps. A thumb positioning plate and a metacarpal positioning plate are respectively snapped and fixed to the two sides of the metacarpal adjustment plate away from the ulnar-radial adjustment plate.

[0007] Optionally, a triangular adjustment plate is fixedly connected to one end of the metacarpal adjustment plate near the radius-ulna adjustment plate, and an arc-shaped adjustment plate is fixedly connected to one end of the radius-ulna adjustment plate near the metacarpal adjustment plate. The arc-shaped adjustment plate is located inside the triangular adjustment plate, and a clearance groove corresponding to the position of the arc-shaped adjustment plate is provided on the metacarpal contact plate.

[0008] Optionally, both the arc-shaped adjusting plate and the triangular adjusting plate are provided with adjusting holes of the same size, and adjusting bolts are inserted into the adjusting holes.

[0009] Optionally, a first side adjustment plate is fixedly connected to one end of the radius-ulna adjustment plate near the fixed adjustment plate, and a second side adjustment plate is fixedly connected to one end of the fixed adjustment plate near the radius-ulna adjustment plate. An adjustment hole is provided at the middle position of both the first side adjustment plate and the second side adjustment plate, and an adjustment bolt is inserted into the adjustment hole.

[0010] Optionally, the metacarpal adjustment plate, the ulnar-radial adjustment plate, and the fixation adjustment plate all have a "U" shaped outline and are all made of polyethylene.

[0011] Optionally, both ends of the thumb positioning plate and the metacarpal positioning plate are fixedly connected with conical inserts. The metacarpal adjustment plate has insertion holes on both sides corresponding to the positions of the conical inserts. The cross-sectional profile of the end of the conical insert is triangular. The thumb positioning plate, the metacarpal positioning plate and the conical insert are all made of rubber.

[0012] Optionally, both the thumb positioning plate and the metacarpal positioning plate have an arc-shaped contour that is recessed towards the center of the metacarpal adjustment plate at their middle positions. The thumb positioning plate has a thumb avoidance portion on the side near the radius-ulna adjustment plate. A metacarpal support plate is fixedly connected to the side of the metacarpal positioning plate near the radius-ulna adjustment plate. A phalangeal support plate is fixedly connected to the end of the metacarpal adjustment plate away from the radius-ulna adjustment plate. The phalangeal support plate has an inclined surface that slopes towards the end face of the metacarpal contact plate.

[0013] Optionally, a first connecting block is fixedly connected to one end of the metacarpal contact plate near the radius-ulna contact plate, and a second connecting block is fixedly connected to one end of the radius-ulna contact plate near the metacarpal contact plate. The first connecting block and the second connecting block are staggered, and the same rotating shaft is inserted into the first connecting block and the second connecting block. The metacarpal contact plate and the radius-ulna contact plate are rotatably connected together by the rotating shaft.

[0014] Optionally, a rotating rod is fixedly connected to the center of one end of the radius-ulna contact plate near the fixation plate. The rotating rod is inserted through the fixation plate, and the fixation plate and the radius-ulna are rotatably connected together by the rotating rod.

[0015] Optionally, a deflection angle adjustment plate is rotatably connected to the bottom of the metacarpal contact plate near the ulnar-radial contact plate. A limit rod is inserted into the bottom of the deflection angle adjustment plate, and an adjustment knob is screwed onto the top of the limit rod.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, a metacarpal contact plate, an ulnar-radial contact plate, and a fixation plate are set up. The metacarpal and ulnar-radial contact plates are rotatably connected by a pivot, which is installed at the active position of the patient's wrist joint. Therefore, the pivot allows the metacarpals and ulnar-radial bones to rotate around the pivot, thereby achieving the adjustment of palmar tilt and dorsiflexion. The ulnar-radial contact plate and the fixation plate are rotatably connected by a rotating rod. Since the rotating rod is installed at the center of the ulnar-radial contact plate, the ulnar-radial contact plate and the fixation plate can rotate around the rotating rod, thereby achieving the adjustment of the internal and external rotation angles of the patient's wrist joint. This setup allows medical personnel to adjust the fixation angle of the plates at different positions of the wrist joint brace, thus adapting to different types of wrist joint injuries, improving the specificity of wrist joint fixation, perfecting the fixation effect of the wrist joint brace, and ensuring the treatment effect and rehabilitation process of the patient using the wrist joint brace.

[0017] By incorporating triangular and arc-shaped adjustment plates within the adjustment assembly, medical personnel can adjust the relative angle between the metacarpal and ulnar-radial contact plates by rotating them, bringing the wrist brace to its first folded state. Once the angle adjustment is complete, the adjustment bolts are inserted into the corresponding adjustment holes on the arc-shaped and triangular adjustment plates to re-fix the metacarpal and ulnar-radial contact plates, thereby achieving the effect of adjusting the palmar tilt and dorsiflexion angles of the patient's wrist joint. This adjustment method is not only simple in structure and convenient to operate, but also provides good stability between the metacarpal and ulnar-radial contact plates after adjustment.

[0018] By incorporating a first and second side adjustment plate within the adjustment assembly, medical personnel can fix the radius-ulna adjustment plate and the fixation plate by inserting adjustment bolts into the corresponding adjustment holes on the first and second side adjustment plates. This design not only allows the radius-ulna contact plate and the fixation plate to rotate relative to each other, placing the wrist brace in a second folded state, but also enables them to be fixed together using the first and second side adjustment plates. This allows for adjustment of the internal and external rotation angles of the patient's wrist joint. In this technical solution, the adjustment method for the angle between the metacarpal contact plate and the radius-ulna contact plate is consistent with the adjustment method for the angle between the radius-ulna contact plate and the fixation plate. This design ensures consistency in the adjustment operation during the overall adjustment of the wrist brace structure, simplifying the adjustment process and improving adjustment efficiency.

[0019] By setting up thumb positioning plates and metacarpal positioning plates, after the patient wears the wrist brace, the patient's thumb can pass through the thumb positioning plate near the thumb avoidance area and then wrap around and hold the thumb positioning plate. The patient's other four fingers can bend and wrap around the outside of the phalangeal support plate, so that the patient's fingers are in a fist position. This improves the patient's finger comfort during the long-term wearing of the wrist brace and prevents the fingers from twisting involuntarily due to being suspended in the air, which would affect the stability of the wrist joint. The metacarpal support plate can support the metacarpal and phalangeal bones at the position of the patient's little finger. It not only prevents the sides of the fingers from being scratched when the patient wears the wrist brace every day, but also supports the bottom of the patient's little finger with its arc-shaped contour, preventing the patient's finger from being suspended in the air and improving the comfort of the fingers. Attached Figure Description

[0020] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0021] Figure 1 A first-person perspective three-dimensional structural diagram of a wrist brace; Figure 2 A second-view three-dimensional structural diagram of a wrist brace; Figure 3 A third-view 3D structural diagram of a wrist brace; Figure 4 A schematic diagram of the exploded three-dimensional structure of a wrist brace; Figure 5 A three-dimensional structural diagram of the wrist brace in its first folded state; Figure 6 for Figure 5Enlarged 3D structural diagram at point A; Figure 7 A three-dimensional structural diagram of the wrist brace in its second folded state; Figure 8 for Figure 7 Enlarged 3D structural diagram at point B; Figure 9 A magnified three-dimensional structural diagram of the metacarpal adjustment plate; Figure 10 This is a magnified three-dimensional structural diagram of the radius-ulna adjustment plate; Figure 11 A magnified three-dimensional structural diagram of the fixed adjustment plate; Figure 12 A three-dimensional structural diagram showing the combination of the metacarpal adjustment plate, the thumb positioning plate, and the metacarpal positioning plate. Figure 13 A fourth-view three-dimensional structural diagram of a wrist brace; Figure 14 A schematic diagram of the anterior metacarpal contact plate structure for adjusting the ulnar-radial deviation angle; Figure 15 A schematic diagram of the metacarpal contact plate structure after ulnar-radial deviation angle adjustment; Figure 16 A schematic diagram of the combined structure of the metacarpal contact plate, thumb positioning plate and metacarpal positioning plate after adjustment of the ulnar-radial deviation angle. Figure 17 This is a schematic diagram of the cross-sectional structure of the anterior metacarpal contact plate for adjusting the ulnar-radial deviation angle.

[0022] Figure label: 1. Metacarpal contact plate; 101. First connecting block; 102. Clearance groove; 2. Ulnar-radial contact plate; 201. Second connecting block; 202. Rotating rod; 3. Fixing plate; 4. Rotating shaft; 5. Metacarpal adjustment plate; 501. Triangular adjustment plate; 502. Phalangeal support plate; 503. Insertion hole; 6. Ulnar-radial adjustment plate; 601. Arc-shaped adjustment plate; 602. First side adjustment plate; 7. Fixing adjustment plate; 701. Second side adjustment plate; 8. Thumb positioning plate; 801. Thumb clearance part; 9. Metacarpal positioning plate; 901. Metacarpal support plate; 10. Strap mounting hole; 11. Adjustment hole; 12. Adjustment bolt; 13. Lightweight hole; 14. Conical insert; 15. Offset angle adjustment plate; 16. Limiting rod; 17. Adjustment knob.

[0023] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0024] The wrist joint brace provided by the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0025] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0026] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0027] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0028] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly. Example

[0029] like Figures 1 to 7As shown, an embodiment of the present invention provides a wrist joint brace, including a metacarpal contact plate 1. A radius-ulna contact plate 2 is rotatably connected to one side of the metacarpal contact plate 1, and a fixation plate 3 is rotatably connected to the side of the radius-ulna contact plate 2 away from the metacarpal contact plate 1. The metacarpal contact plate 1, the radius-ulna contact plate 2, and the fixation plate 3 are all made of polyethylene and have lightweight holes 13 on their surfaces. A first connecting block 101 is fixedly connected to the end of the metacarpal contact plate 1 near the radius-ulna contact plate 2, and a second connecting block 201 is fixedly connected to the end of the radius-ulna contact plate 2 near the metacarpal contact plate 1. The first connecting block 101 and the second connecting block 201 are staggered, and the same rotating shaft 4 is inserted into the first connecting block 101 and the second connecting block 201. The contact plate 1 and the radius-ulna contact plate 2 are rotatably connected together via a pivot 4. A pivot rod 202 is fixedly connected to the center of the radius-ulna contact plate 2 near the fixation plate 3. The pivot rod 202 is inserted through the fixation plate 3. The fixation plate 3 and the radius-ulna are rotatably connected together via the pivot rod 202. In this technical solution, the wrist joint brace is mainly composed of two sets of identical plates. Each set of plates consists of the metacarpal contact plate 1, the radius-ulna contact plate 2, and the fixation plate 3 connected to each other in sequence. In actual use, the two sets of plates are fixed to the top and bottom of the patient's wrist joint (i.e., the palm and the back of the hand) respectively. Then, the two sets of plates are fixed together with Velcro straps to achieve the fixation effect on the patient's wrist joint.

[0030] Specifically, the metacarpal contact plate 1, the radius-ulna contact plate 2, and the fixation plate 3 are used to support and fix the patient's metacarpals, radius-ulna, and forearm, respectively. Compared with the prior art, in this technical solution, the relative positions of the metacarpal contact plate 1, the radius-ulna contact plate 2, and the fixation plate 3 can be adjusted to each other. This allows the wrist brace in this technical solution to adjust the fixation angle of the plates at different positions of the wrist brace according to the patient's injury, thus making it suitable for different types of wrist injuries. This improves the specificity of wrist fixation, perfects the fixation effect of the wrist brace, and ensures the treatment effect and rehabilitation process of the patient using the wrist brace.

[0031] Furthermore, the metacarpal contact plate 1 and the radius-ulna contact plate 2 are rotatably connected together via a pivot 4. The pivot 4 is installed at the patient's wrist joint's range of motion, thus allowing the metacarpals and radius-ulna to rotate around its axis, thereby achieving adjustment of palmar tilt and dorsiflexion. The radius-ulna contact plate 2 and the fixation plate 3 are rotatably connected together via a pivot rod 202. Since the pivot rod 202 is installed at the center of the radius-ulna contact plate 2, the radius-ulna contact plate 2 and the fixation plate 3 can rotate around the pivot rod 202. When the fixation plate 3 is... After fixation, medical personnel can rotate the radius-ulna contact plate 2, causing the metacarpal contact plate 1 to rotate synchronously around the pivot rod 202. This achieves the effect of adjusting the internal and external rotation angles of the patient's wrist joint. Through the above structure, when the patient uses the wrist brace, the patient's wrist joint can not only adjust the palmar tilt and dorsiflexion angles, but also the internal and external rotation angles. This allows for multi-dimensional adjustment of the patient's wrist joint, improving the applicability of this wrist brace for fixing different injuries and enhancing the targeted nature of wrist joint fixation.

[0032] As one implementation method in this embodiment, such as Figures 1 to 4 As shown, the adjustment assembly is used to adjust the relative positions between the metacarpal contact plate 1, the radius-ulna contact plate 2, and the fixation plate 3. The adjustment assembly is connected to the metacarpal contact plate 1, the radius-ulna contact plate 2, and the fixation plate 3 respectively. The adjustment assembly includes a metacarpal adjustment plate 5, a radius-ulna adjustment plate 6, and a fixation adjustment plate 7, which are screwed and fixed to the metacarpal contact plate 1, the radius-ulna contact plate 2, and the fixation plate 3 respectively. Each of the metacarpal adjustment plate 5, the radius-ulna adjustment plate 6, and the fixation adjustment plate 7 has a strap mounting hole 10 on both sides for installing Velcro straps. The metacarpal adjustment plate 5, the radius-ulna adjustment plate 6, and the fixation adjustment plate 7 are all U-shaped and made of polyethylene.

[0033] In the above structure, the adjustment component mainly consists of three plates: a metacarpal adjustment plate 5, an ulnar-radial adjustment plate 6, and a fixation adjustment plate 7. These three plates are fixed to the edges of the metacarpal contact plate 1, the ulnar-radial contact plate 2, and the fixation plate 3, respectively, by screws. Since the metacarpal adjustment plate 5, the ulnar-radial adjustment plate 6, and the fixation adjustment plate 7 all have strap mounting holes 10 on both sides, medical personnel can fix the two ends of the Velcro strap to the sides of the metacarpal adjustment plate 5, the ulnar-radial adjustment plate 6, and the fixation adjustment plate 7, respectively, through the strap mounting holes 10. Then, the two sets of plates of the wrist joint brace are simultaneously fixed to the top and bottom sides of the patient's wrist joint with the Velcro strap. Medical personnel can adjust the binding force of the Velcro strap according to the size of the patient's wrist joint, thereby improving the stability of the wrist joint brace fixation. In this application, the installation method between the Velcro strap and the strap mounting holes 10 is disclosed as prior art and will not be described in detail here.

[0034] Optionally, the metacarpal adjustment plate 5, the radius-ulna adjustment plate 6, and the fixation adjustment plate 7 are fixed with screws, allowing all three to be removed from the wrist brace. This facilitates maintenance, cleaning, and replacement of the metacarpal adjustment plate 5, radius-ulna adjustment plate 6, and fixation adjustment plate 7, extending the lifespan of the wrist brace. Furthermore, since the metacarpal adjustment plate 5, radius-ulna adjustment plate 6, and fixation adjustment plate 7 are all made of polyethylene, they are integrally injection molded using molds during actual production, which is convenient and has low manufacturing costs. Due to the light weight of polyethylene, the patient experiences low load while wearing the brace.

[0035] In this embodiment, as Figures 1 to 11As shown, a triangular adjustment plate 501 is fixedly connected to one end of the metacarpal adjustment plate 5 near the radius-ulna adjustment plate 6, and an arc-shaped adjustment plate 601 is fixedly connected to one end of the radius-ulna adjustment plate 6 near the metacarpal adjustment plate 5. The arc-shaped adjustment plate 601 is located inside the triangular adjustment plate 501. A clearance groove 102 corresponding to the position of the arc-shaped adjustment plate 601 is provided on the metacarpal contact plate 1. Both the arc-shaped adjustment plate 601 and the triangular adjustment plate 501 have adjustment holes 11 of the same size, and adjustment bolts 12 are inserted into the adjustment holes 11. As mentioned above, the adjustment assembly can adjust the palmar tilt and dorsiflexion angles of the patient's wrist joint. Specifically, since the metacarpal contact plate 1 and the radius-ulna contact plate 2 are rotatably connected together by a rotating shaft 4, they can rotate relative to each other. During the rotation of the metacarpal contact plate 1 and the radius-ulna contact plate 2, the arc-shaped adjustment plate 601 and the triangular adjustment plate 501... 01 will rotate around the axis of rotation 4, following the metacarpal contact plate 1 and the radius-ulna contact plate 2. Several adjustment holes 11 are provided on the triangular adjustment plate 501, and these adjustment holes 11 are arranged in a circular array around the axis of rotation 4. Therefore, when the arc-shaped adjustment plate 601 and the triangular adjustment plate 501 rotate relative to each other, medical personnel can simultaneously insert the adjustment bolts 12 into the corresponding adjustment holes 11 of the triangular adjustment plate 501 and the arc-shaped adjustment plate 601 to achieve a fixing effect. In actual operation, medical personnel first remove the adjustment bolts 12 located on the arc-shaped adjustment plate 601 and the triangular adjustment plate 501. After the adjustment bolts 12 are removed, the restriction between the metacarpal contact plate 1 and the radius-ulna contact plate 2 is released. At this time, medical personnel adjust the relative angle between the metacarpal contact plate 1 and the radius-ulna contact plate 2 by rotating them, so that the wrist joint brace is in the first folded state (e.g., Figure 5 As shown in the figure, after the angle is adjusted, the adjusting bolt 12 is inserted into the corresponding adjusting hole 11 of the arc-shaped adjusting plate 601 and the triangular adjusting plate 501 to fix the metacarpal contact plate 1 and the ulnar-radial contact plate 2 again. This adjustment method is not only simple in structure and convenient in operation, but also has good stability between the metacarpal contact plate 1 and the ulnar-radial contact plate 2 after adjustment.

[0036] Furthermore, the metacarpal contact plate 1 is provided with a relief groove 102 corresponding to the position of the arc-shaped adjustment plate 601. The relief groove 102 ensures that the metacarpal contact plate 1 will not obstruct or limit the arc-shaped adjustment plate 601 when it rotates around the axis of the pivot 4. Optionally, a scale is provided on the triangular adjustment plate 501 so that medical personnel can use the scale as a reference and record when rotating and adjusting the metacarpal contact plate 1 and the ulnar-radial contact plate 2, thereby improving the efficiency and accuracy of the patient's wrist joint palmar tilt and dorsiflexion adjustment.

[0037] In this embodiment, as Figures 1 to 11As shown, a first side adjustment plate 602 is fixedly connected to one end of the radius-ulna adjustment plate 6 near the fixed adjustment plate 7, and a second side adjustment plate 701 is fixedly connected to one end of the fixed adjustment plate 7 near the radius-ulna adjustment plate 6. Adjustment holes 11 are provided at the midpoint of both the first side adjustment plate 602 and the second side adjustment plate 701, and adjustment bolts 12 are inserted into the adjustment holes 11. As described above, the adjustment assembly can adjust the internal and external rotation angles of the patient's wrist joint. Specifically, since the radius-ulna contact plate 2 and the fixed plate 3 can rotate around the axis of the rotating rod 202, their rotation... During the process, the first side adjustment plate 602 and the second side adjustment plate 701 will rotate synchronously. Several adjustment holes 11 on the second side adjustment plate 701 are arranged in a circular array around the axis of the rotating rod 202. Therefore, medical personnel can fix the radius-ulna adjustment plate 6 and the fixation adjustment plate 7 by inserting the adjustment bolts 12 into the corresponding adjustment holes 11 on the first side adjustment plate 602 and the second side adjustment plate 701. This arrangement not only allows the radius-ulna contact plate 2 and the fixation plate 3 to rotate relative to each other, but also allows the wrist joint brace to be in a second folded state (such as...). Figure 7 As shown in the figure, the two can be fixed by means of the first side adjustment plate 602 and the second side adjustment plate 701, thereby achieving the effect of adjusting the internal and external rotation angles of the patient's wrist joint.

[0038] Furthermore, the adjustment method of the angle between the metacarpal contact plate 1 and the ulnar-radial contact plate 2 is consistent with the adjustment method of the angle between the ulnar-radial contact plate 2 and the fixation plate 3. This setting ensures that the adjustment operation is consistent during the adjustment of the overall structure of the wrist joint brace by medical personnel, simplifies the operation of adjusting the entire wrist joint brace structure, and improves the adjustment efficiency. Optionally, a scale is set on the second adjustment plate 701, allowing medical personnel to use the scale as a reference and record when rotating and adjusting the ulnar-radial contact plate 2 and the fixation plate 3, thereby improving the efficiency and accuracy of adjusting the internal and external rotation angles of the patient's wrist joint.

[0039] In this embodiment, as Figures 1 to 3 and Figure 12As shown, the thumb positioning plate 8 and the metacarpal positioning plate 9 are respectively snapped and fixed on both sides of the end of the metacarpal adjustment plate 5 away from the radius-ulna adjustment plate 6. Conical inserts 14 are fixedly connected to both ends of the thumb positioning plate 8 and the metacarpal positioning plate 9. Insertion holes 503 corresponding to the positions of the conical inserts 14 are opened on both sides of the metacarpal adjustment plate 5. The cross-sectional profile of the end of the conical insert 14 is triangular. The thumb positioning plate 8, the metacarpal positioning plate 9, and the conical insert 14 are all made of rubber. Both the positioning plate 8 and the metacarpal positioning plate 9 have an arc-shaped contour that is concave towards the center of the metacarpal adjustment plate 5 at their middle positions. The thumb positioning plate 8 has a thumb avoidance part 801 on the side near the ulnar-radial adjustment plate 6. The metacarpal positioning plate 9 is fixedly connected to a metacarpal support plate 901 on the side near the ulnar-radial adjustment plate 6. The end of the metacarpal adjustment plate 5 away from the ulnar-radial adjustment plate 6 is fixedly connected to a phalangeal support plate 502. The phalangeal support plate 502 has a shape facing the end of the metacarpal contact plate 1. As mentioned earlier, when a patient wears a wrist brace, the metacarpals are supported and limited by the metacarpal contact plates 1, which are located at the top and bottom of the patient's palm, respectively. At this time, the phalanges are exposed. During daily use of the wrist brace, the wrist joint is fixed by the brace, and the phalanges are suspended. Because the phalangeal joints are flexible, prolonged suspension and exposure of the phalanges can cause discomfort. Moreover, when the patient places their arm on a table or sleeps on a bed, the suspended phalanges further increase the discomfort at the phalange position, causing the phalanges to twist involuntarily, which can easily affect the stability of the wrist joint fixation, thus affecting the therapeutic effect of the wrist brace and the patient's rehabilitation process. Based on the above problems, in this technical solution, by installing thumb positioning plates 8 and metacarpal positioning plates 9 on both sides of the metacarpal adjustment plate 5, the comfort and stability of the phalanges when the patient wears the wrist brace can be effectively guaranteed.

[0040] Specifically, the thumb positioning plate 8 and the metacarpal positioning plate 9 are both fixed in the insertion holes 503 on both sides of the metacarpal adjustment plate 5 by the conical insert 14. Since the cross-sectional profile of the end of the conical insert 14 is triangular and the material of the conical insert 14 is rubber, in the actual installation process, you only need to align the conical insert 14 with the insertion hole 503 and press it. During the pressing process, the conical insert 14 will deform and pass through the insertion hole 503. After the conical insert 14 passes through the insertion hole 503, it will automatically recover its deformation and be fixed in the conical insertion hole 503 by its conical profile. This installation method is not only efficient and convenient, but also will not detach during daily wear.

[0041] Furthermore, after the patient has put on the wrist brace, the patient's four fingers (excluding the thumb) emerge from the gap between the ends of the two phalangeal contact plates and are exposed at the end of the metacarpal contact plate 1. The patient's thumb emerges from the side of the two phalangeal contact plates. At this time, the patient can let the thumb pass through the thumb positioning plate 8 near the thumb avoidance part 801 and then wrap the thumb around and grasp the thumb positioning plate 8. At the same time, the patient can bend the four fingers (excluding the thumb) and wrap them around the outside of the phalangeal support plate 502. Because the phalangeal support plate 502 is inclined towards the end face of the metacarpal contact plate 1... The inclined surface of the metacarpal support plate 901 conforms to the structural contour of a human finger when it is bent, thus improving the comfort of the patient after bending the finger. With the above structure, after the patient wears the wrist brace, the patient's fingers can be freely flexed and extended and wrapped around the outside of the thumb positioning plate 8 and the metacarpal support plate 502, so that the patient's fingers are in a clenched fist position. This improves the comfort of the patient's fingers during the long-term wearing of the wrist brace and prevents the problem of involuntary twisting of the fingers due to the fingers being suspended in the air, which would affect the stability of the wrist joint.

[0042] Furthermore, the metacarpal positioning plate 9 is located on the opposite side of the thumb positioning plate 8. Since both the thumb positioning plate 8 and the metacarpal positioning plate 9 have an arc-shaped contour that is concave towards the center of the metacarpal adjustment plate 5 at their middle positions, the metacarpal support plate 901 can support the metacarpals and phalanges at the position of the patient's little finger. This not only prevents the sides of the fingers from being scratched when the patient wears a wrist brace, but also supports the bottom of the patient's little finger with its arc-shaped contour, preventing the patient's finger from dangling and improving the comfort of the finger.

[0043] Optionally, several linearly arranged insertion holes 503 are provided on both sides of the metacarpal adjustment plate 5, allowing medical personnel to selectively install the thumb positioning plate 8 and metacarpal positioning plate 9 according to the specific position of the patient's fingers when actually assembling the thumb positioning plate 8 and metacarpal positioning plate 9, thereby ensuring the adaptability of the brace for different patients. In this technical solution, both the thumb positioning plate 8 and metacarpal positioning plate 9 are made of rubber. This design not only improves the comfort of the patient's fingers when they flex and extend and fit against the surface of the thumb positioning plate 8 and metacarpal positioning plate 9, but also the lightweight and soft rubber material can improve the comfort of wearing the wrist brace. Example

[0044] As one implementation method in this embodiment, such as Figures 13 to 17As shown, the bottom of the metacarpal contact plate 1 near the ulnar-radial contact plate 2 is rotatably connected to an angle adjustment plate 15. A limiting rod 16 is inserted into the bottom of the angle adjustment plate 15, and an adjustment knob 17 is screwed onto the top of the limiting rod 16. In this embodiment, the metacarpal contact plate 1 near the ulnar-radial contact plate 2 is divided into two parts, and the metacarpal adjustment plate 5, which is fixed to the metacarpal contact plate 1, is also divided into two parts (e.g., ...). Figure 13 As shown in the figure, the two metacarpal contact plates 1, which are divided into two, are rotatably connected together by the deflection angle adjustment plate 15. The limiting rod 16 is vertically inserted into the deflection angle adjustment plate 15, so that the deflection angle adjustment plate 15 can rotate around the center of the limiting rod 16, thereby adjusting the ulnar-radial deflection angle of the patient's wrist joint. Since the adjustment knob 17 is screwed to the top of the limiting rod 16, when the medical staff turns the adjustment knob 17, the deflection angle adjustment plate 15 can be squeezed and fixed by the driving action of the thread, thereby achieving the fixing effect of the deflection angle adjustment plate 15.

[0045] With the above-mentioned structure, the wrist brace provided in this application can adjust the ulnar-radial deviation angle of the patient. Moreover, the adjustment structure is simple, easy to operate, and has high structural stability, making this wrist brace suitable for different types of wrist injuries.

[0046] The working principle of the technical solution provided by this invention is as follows: In use, first, fix both ends of the Velcro strap to the sides of the metacarpal adjustment plate 5, the radius-ulna adjustment plate 6, and the fixation adjustment plate 7 respectively through the strap mounting holes 10. Then, place the two sets of plates, composed of metacarpal contact plates 1, radius-ulna contact plates 2, and fixation plates 3, on the top and bottom sides of the patient's wrist joint. During placement, the two metacarpal contact plates 1 are positioned on the palm and back of the wrist respectively. After placement, fix the two sets of plates together with the Velcro strap. Adjust the tension of the Velcro strap according to the size of the patient's wrist joint to ensure the stability of the wrist brace. Once the patient is wearing the wrist brace... Then, the patient's thumb passes through the thumb positioning plate 8 near the thumb avoidance part 801, and then the thumb wraps around and holds the thumb positioning plate 8. At the same time, the patient's other four fingers are bent and wrapped around the outside of the phalanx support plate 502. At this time, the inclined metacarpal support plate 901 conforms to the structural contour of human fingers when bent, thereby improving the patient's comfort after bending their fingers. This setting makes the patient's fingers clench into a fist, which improves the patient's finger comfort during the long-term wearing of the wrist joint brace and prevents the problem of involuntary twisting of the fingers due to the fingers being suspended in the air, thus affecting the stability of the wrist joint.

[0047] When it is necessary to adjust the palmar tilt and dorsiflexion angles of the patient's wrist joint, the medical staff first removes the adjusting bolts 12 located on the arc-shaped adjusting plate 601 and the triangular adjusting plate 501. After the adjusting bolts 12 are removed, the restriction between the metacarpal contact plate 1 and the ulnar-radial contact plate 2 is released. At this time, the medical staff adjusts the relative angle between the metacarpal contact plate 1 and the ulnar-radial contact plate 2 by rotating them, so that the wrist joint brace is in the first folded state. After the angle adjustment is completed, the adjusting bolts 12 are inserted into the corresponding adjusting holes 11 of the arc-shaped adjusting plate 601 and the triangular adjusting plate 501 to fix the metacarpal contact plate 1 and the ulnar-radial contact plate 2 again. After fixation, the effect of adjusting the palmar tilt and dorsiflexion angles of the patient's wrist joint can be achieved.

[0048] When it is necessary to adjust the internal and external rotation angles of the patient's wrist joint, the medical staff first removes the adjusting bolts 12 located on the first adjusting plate 602 and the second adjusting plate. After the adjusting bolts 12 are removed, the restriction between the radius-ulna contact plate 2 and the fixation plate 3 is released. At this time, the medical staff adjusts the relative angle between the radius-ulna contact plate 2 and the fixation plate 3 by rotating them, so that the wrist joint brace is in the second folded state. After the angle adjustment is completed, the adjusting bolts 12 are inserted into the corresponding adjusting holes 11 of the first adjusting plate 602 and the second adjusting plate 701 to re-fix the radius-ulna contact plate 2 and the fixation plate 3. After fixation is completed, the effect of adjusting the internal and external rotation angles of the patient's wrist joint can be achieved.

[0049] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0050] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A wrist brace comprising a metacarpal contact plate, characterized in that, One side of the metacarpal contact plate is rotationally connected with a ulna-radiate contact plate, one side of the ulna-radiate contact plate is rotationally connected with a fixed plate, the metacarpal contact plate, the ulna-radiate contact plate and the fixed plate are all polyethylene material, and the surfaces are all provided with light-weight holes. An adjusting assembly is used for adjusting the relative positions among the metacarpal contact plate, the ulna-radiate contact plate and the fixed plate, and the adjusting assembly is connected with the metacarpal contact plate, the ulna-radiate contact plate and the fixed plate respectively.

2. The wrist brace of claim 1, wherein, The adjusting assembly comprises metacarpal adjusting plates, ulna-radiate adjusting plates and fixed adjusting plates which are respectively screwed and fixed on the metacarpal contact plate, the ulna-radiate contact plate and the fixed plate by screws, both sides of the metacarpal adjusting plates, the ulna-radiate adjusting plates and the fixed adjusting plates are all provided with band mounting holes, the band mounting holes are used for mounting magic tape bands, and both sides of one end of the metacarpal adjusting plate away from the ulna-radiate adjusting plate are respectively clamped and fixed with a thumb positioning plate and a metacarpal positioning plate.

3. The wrist brace of claim 2, wherein, One end of the metacarpal adjusting plate close to the ulna-radiate adjusting plate is fixedly connected with a triangular adjusting plate, one end of the ulna-radiate adjusting plate close to the metacarpal adjusting plate is fixedly connected with an arc-shaped adjusting plate, the arc-shaped adjusting plate is located on the inner side of the triangular adjusting plate, and the metacarpal contact plate is provided with an avoiding slot corresponding to the position of the arc-shaped adjusting plate.

4. The wrist brace of claim 3, wherein, The arc-shaped adjusting plate and the triangular adjusting plate are both provided with adjusting holes with the same size, and adjusting bolts are inserted into the adjusting holes.

5. The wrist brace of claim 2, wherein, One end of the ulna-radiate adjusting plate close to the fixed adjusting plate is fixedly connected with a first side adjusting plate, one end of the fixed adjusting plate close to the ulna-radiate adjusting plate is fixedly connected with a second side adjusting plate, the middle positions of the first side adjusting plate and the second side adjusting plate are both provided with adjusting holes, and adjusting bolts are inserted into the adjusting holes, the metacarpal adjusting plate, the ulna-radiate adjusting plate and the fixed adjusting plate all have "U" shaped profiles, and are all made of polyethylene.

6. The wrist brace of claim 2, wherein, Both ends of the thumb positioning plate and the metacarpal positioning plate are fixedly connected with tapered plug blocks, both sides of the metacarpal adjusting plate are provided with plug holes corresponding to the positions of the tapered plug blocks, the cross-sectional profile of the end of the tapered plug block is triangular, and the thumb positioning plate, the metacarpal positioning plate and the tapered plug block are all made of rubber.

7. The wrist brace of claim 2, wherein, The middle positions of the thumb positioning plate and the metacarpal positioning plate are both provided with circular arc-shaped profiles which are recessed towards the center direction of the metacarpal adjusting plate, one side of the thumb positioning plate close to the ulna-radiate adjusting plate is provided with a thumb avoiding part, one side of the metacarpal positioning plate close to the ulna-radiate adjusting plate is fixedly connected with a metacarpal supporting plate, one end of the metacarpal adjusting plate away from the ulna-radiate adjusting plate is fixedly connected with a phalanx supporting plate, and the phalanx supporting plate has an inclined surface which is inclined towards the end surface of the metacarpal contact plate.

8. The wrist brace of claim 1, wherein, The metacarpal contact plate is fixedly connected with a first connecting block near one end of the ulna-radii contact plate, the ulna-radii contact plate is fixedly connected with a second connecting block near one end of the metacarpal contact plate, the first connecting block and the second connecting block are staggered with each other, a same rotating shaft is inserted in the first connecting block and the second connecting block, and the metacarpal contact plate and the ulna-radii contact plate are rotatably connected together through the rotating shaft.

9. The wrist brace of claim 1, wherein, The ulna-radii contact plate is fixedly connected with a rotating rod at a central position of one end of the fixed plate, the rotating rod is inserted in the fixed plate, and the fixed plate and the ulna-radii are rotatably connected together through the rotating rod.

10. The wrist brace of claim 1, wherein, The metacarpal contact plate is rotatably connected with an angle adjusting plate at the bottom of one end of the ulna-radii contact plate, the angle adjusting plate is inserted with a limiting rod at the bottom, and the limiting rod is screwed with an adjusting knob at the top.

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