Wrist orthosis

Abstract

To provide a wrist orthosis, even when moving a wrist and an arm while it is worn, capable of appropriately compressing the ulna.SOLUTION: A wrist orthosis according to the present invention comprises a body part for covering the periphery of the wrist, and a pressing member provided at the body part, where the pressing member presses at least a part of the ulna so as to sandwich the ulna therebetween. The pressing member includes at least two pressing parts. The at least two pressing parts are preferably provided parallel to the ulna with the ulna interposed therebetween. The at least two pressing parts may be projecting parts or elastic parts.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a wrist brace that is attached to the wrist region of a patient with wrist injury, particularly TFCC injury, to immobilize the wrist. [Background technology]

[0002] The wrist can be injured when twisted or overused during sports or work. A typical example is a triangular fibrocartilage complex injury. This condition, also known as a TFCC injury, occurs when excessive stress is placed on the triangular fibrocartilage complex (TFCC), which distributes the weight of the wrist and acts as a cushion. TFCC injuries cause pain with wrist or arm movements.

[0003] Patent Document 1 discloses a wrist orthosis for reducing pain caused by TFCC injury, which includes a compression pad that has enough hardness and elasticity to maintain its shape and is press-fit between the forearm bone and the proximal carpal bone row on the ulnar or radial side of the wrist to maintain the gap between them. Patent Document 2 also discloses a wristband with a pressing member that presses the ulnar styloid process from the dorsal side of the hand toward the palmar side. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-061995 [Patent Document 2] Japanese Patent Application Laid-Open No. 2003-019151 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with conventional wrist braces, if the wrist or arm is moved while wearing the brace, the pressing member that compresses the ulna may shift, making it impossible to properly compress the ulna. Therefore, the object of the present invention is to provide a wrist brace that can properly compress the ulna even if the wrist or arm is moved while wearing it. [Means for solving the problem]

[0006] The present inventors have discovered that the above-mentioned problems can be solved by providing a wrist brace with a member that compresses the ulna in a clamping manner.

[0007] That is, the present invention provides a wrist brace that includes a main body that covers the periphery of the wrist and a pressing member that is provided on the main body, and the pressing member compresses at least a portion of the ulna so as to sandwich the ulna. [Effects of the Invention]

[0008] In the wrist brace according to the present invention, the pressing member that compresses the ulna is unlikely to shift, so the ulna can be appropriately compressed even if the wrist or arm is moved while wearing the brace. Note that the effects described here are not necessarily limited to those described herein, and any of the effects described in this specification may be achieved. [Brief explanation of the drawings]

[0009] [Figure 1] Schematic diagram of the right hand. [Figure 2] FIG. 2 is a schematic diagram showing the relationship between a right hand and a pressing member of a wrist orthosis according to one embodiment of the present invention. [Figure 3] FIG. 2 is a schematic diagram showing the outer surface of the wrist brace in an open state according to one embodiment of the present invention. [Figure 4] 1 is a schematic diagram showing the inner surface of a wrist brace according to an embodiment of the present invention in an open state. FIG. [Figure 5] 10A and 10B are schematic diagrams showing modified examples of the pressing member in the present invention. [Figure 6] 1A to 1C are schematic diagrams illustrating a procedure for wearing a wrist orthosis according to one embodiment of the present invention. [Figure 7] 1A to 1C are schematic diagrams illustrating a procedure for wearing a wrist orthosis according to one embodiment of the present invention. [Figure 8] 1A to 1C are schematic diagrams illustrating a procedure for wearing a wrist orthosis according to one embodiment of the present invention. [Figure 9] FIG. 1 is a schematic diagram showing a state after the wrist orthosis according to one embodiment of the present invention has been worn. DETAILED DESCRIPTION OF THE INVENTION

[0010] Preferred embodiments for carrying out the present invention will be described below with reference to the drawings. Note that the embodiment described below is an example of a typical embodiment of the present invention, and the scope of the present invention is not limited thereto. Furthermore, the present invention can be combined with any of the following examples and their modifications.

[0011] (1) Overview of the present invention First, an outline of the present invention will be described with reference to FIGS. Fig. 1 is a schematic diagram of the right hand RH, Fig. 2(a) is a cross-sectional view showing the relationship between the right hand RH and the pressing member 24 of the wrist joint brace 1 according to one embodiment of the present invention, and Fig. 2(b) is a side view showing the relationship between the right hand RH and the pressing member 24 of the wrist joint brace 1 according to one embodiment of the present invention when viewed from the palm side. Note that in Fig. 2, the main body 2 of the wrist joint brace 1 is not shown in order to show the positional relationship between the pressing member 24 and the bones of the right hand RH. As shown in Figure 1, the right hand RH has a radius R located on the thumb side and an ulna U located on the little finger side. In addition, the distal radioulnar joint D is located between the radius R and the ulna U, and the triangular fibrocartilage complex T connects the radius R and the ulna U, contributing to the stabilization of the distal radioulnar joint D.

[0012] TFCC injuries, which occur due to damage to the triangular fibrocartilage complex (T), cause pain in the wrist when bending the wrist toward the little finger (ulnar flexion) or rotating the wrist.

[0013] The present inventors have investigated a method of compressing the ulna U to reduce wrist pain caused by TFCC injury. However, because the ulna U has a shape with a slight protrusion on the little finger side as shown in Figure 2(a), simply providing a member that compresses the ulna U side can easily cause the member to shift position due to wrist or arm movements, and in some cases the ulna U cannot be compressed appropriately.

[0014] In view of the above circumstances, the present inventors have completed the present invention. The present inventors have discovered that by providing a pressing member 24 that presses at least a part of the ulna U so as to sandwich the ulna U, as shown in Figures 2(a) and 2(b), the position of the pressing member 24 relative to the ulna U is less likely to shift even when the wrist or arm is moved, and the ulna U can be appropriately pressed. This pressing member 24 can appropriately limit the ulnar flexion of the wrist joint, thereby suppressing pain in the wrist joint due to ulnar flexion of the wrist joint. Furthermore, the pressing member 24 can prevent the radius R and the ulna U from separating even when the wrist is rotated, thereby suppressing pain in the wrist joint due to the wrist rotation.

[0015] (2) Configuration of wrist orthosis 1 The configuration of a wrist orthosis 1 according to one embodiment of the present invention will be described with reference to Figures 2 to 5. Note that explanations of common reference numerals in the drawings will be omitted unless particularly necessary.

[0016] Fig. 3 is a schematic diagram showing the outer surface of the wrist joint brace 1 according to this embodiment in an open state. Here, the outer surface refers to the outer surface that does not come into contact with the hand when the wrist joint brace 1 is worn on the hand. Fig. 4 is a schematic diagram showing the inner surface of the wrist joint brace 1 according to this embodiment in an open state. Here, the inner surface refers to the inner surface that comes into contact with the hand when the wrist joint brace 1 is worn. Fig. 5 is a schematic diagram showing a modified example of the pressing member 24.

[0017] The wrist orthosis 1 according to this embodiment includes at least a main body 2, and may further include a finger insertion section 3 and a fixing belt 4. The main body 2 is a member for covering the periphery of the wrist. A pressing member 24 for compressing the ulna U is provided on the inner surface of the main body 2. The finger insertion section 3 is a band-like member into which the fingers are inserted when the main body 2 is wrapped around the wrist, and is fixed to the main body 2 by a connecting section 30. The fixing belt 4 is also a band-like member that is wrapped around the outer surface of the main body 2. Each section will be described in more detail below.

[0018] (2-1) Main body 2 The main body 2 is a member for covering the area around the wrist. The shape of the main body 2 is not particularly limited as long as it can cover the area around the wrist, but it may be, for example, a horizontally long band-like body, a tubular cylindrical body, or a glove-like shape that fits directly to the outer shape of the hand and wrist. A horizontally long band-like body as shown in Figure 3 is preferable because it allows the fixing force of the wrist orthosis 1 to be adjusted depending on the size of the patient's hand and the condition of the affected area.

[0019] The main body 2 in this embodiment is composed of a central portion 21 and two end portions 22 and 23. Preferably, the central portion 21 is the portion that contacts the radius R of the wrist when the main body 2 is wrapped around the wrist, and the two end portions 22 and 23 are the portions that contact the ulna U of the wrist. The shapes of the two ends 22 and 23 are not particularly limited as long as they can firmly fix the joint part on the ulna U side that needs to be fixed, and may be, for example, polygonal, circular, etc. Furthermore, the two ends 22 and 23 may have different shapes, such as end 22 being approximately pentagonal and end 23 being approximately hexagonal.

[0020] It is preferable that at least one of the two end portions 22 and 23 is wider than the central portion 21, and it is even more preferable that both are wider than the central portion 21. When the end portions 22 and / or 23 are wider than the central portion 21, the ulna U side can be more stably fixed. On the other hand, when the central portion 21 is narrower than the end portions 22 and / or 23, the fixation area on the radius R side can be minimized while stably fixing the ulna U side, thereby reducing the impact of interfering with hand movements such as grasping an object. In other words, by attaching the main body portion 2 so that the wider end portions 22 and / or 23 abut the ulna U, it is possible to firmly fix only the joint area on the ulna U side that requires fixation and to reduce the impact of interfering with hand movements such as grasping an object.

[0021] In this embodiment, the length of the central portion 21 is preferably 30 mm or more and 90 mm or less. The width of the central portion 21 is preferably 30 mm or more and 80 mm or less. On the other hand, the lengths of the two end portions 22 and 23 are preferably 40 mm or more and 100 mm or less. The width of the central portion 21 is preferably 40 mm or more and 120 mm or less.

[0022] In this embodiment, the outer surface of the main body 2 is preferably made of a hook-and-loop fastener made of a looped filamentary material in order to secure the end of the inner surface of the main body 2 and to attach the finger insertion section 3 described later. Furthermore, a fixing end 25 may be provided on the inner surface of end 23 for fixing to the outer surface of main body 2. It is preferable that fixing end 25 be provided with a hook-shaped hook-and-loop fastener, so that it can be attached to and fixed on the outer surface of main body 2, which has a loop-shaped hook-and-loop fastener. This allows main body 2 to be fastened to the wrist with any desired strength after wrapping main body 2 around the wrist, by engaging with the outer surface of main body 2. The method of covering and fastening the main body around the wrist is not limited to providing hook-and-loop fasteners on the outer and inner surfaces of the main body as an attachment means, and known fastening means other than hook-and-loop fasteners can also be used, such as buckles, snap buttons, strings, etc.

[0023] The yarn material constituting the main body 2 may be either natural or chemical fibers, such as polyamide fibers, polyester fibers, acrylic fibers, cellulose fibers (cotton, rayon, polynosic, lyocell, etc.), polyurethane fibers, polyolefin fibers (polyethylene, polypropylene, etc.), acetate fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, or wool (wool, animal hair, etc.), or a mixture of these fibers. Available types of yarn include monofilament, multifilament, twisted yarn, covered yarn, and core yarn, and may be processed to be stretchable or bulky.

[0024] Furthermore, various warp knitting or weft knitting structures can be used for knitting the main body 2, such as double raschel fabric, plain knitting fabric, rib knitting fabric, pearl knitting fabric, tuck knitting fabric, circular knitting fabric, flat knitting fabric, tricot fabric, raschel fabric, pile knitting fabric, and coated yarn knitting fabric. Double raschel fabric is made by knitting a single thread and connecting loops called loops, and the elasticity of the loops contributes to stretching, and air can pass through these loops. Therefore, by using double raschel fabric, breathability can be ensured.

[0025] (2-1-1) Pressing member 24 As shown in Figure 4, the wrist brace 1 according to this embodiment includes a pressing member 24 on the inner surface of the main body 2. The pressing member 24 is provided at a position that will come into contact with the ulna U when the main body 2 is worn, and is preferably provided on the inner surface of the end portion 22. In this embodiment, by compressing at least a portion of the ulna U so as to sandwich the ulna U with the pressing member 24, it is possible to appropriately restrict ulnar flexion of the wrist and reduce pain in the wrist due to ulnar flexion of the wrist. Furthermore, the pressing member 24 can prevent the radius R and ulna U from separating even when the wrist is rotated, and it is also possible to reduce pain in the wrist due to wrist rotation.

[0026] The pressing member 24 in this embodiment will now be described in detail with reference to FIGS. 2, 4 and 5. FIG. The pressing member 24 in this embodiment preferably has two pressing portions 24a and 24b that press against the ulna U, and the two pressing portions 24a and 24b press against at least a portion of the ulna U so as to sandwich the ulna U. This makes it difficult for the pressing member 24 to slip off the ulna U even if the wrist or arm is moved while wearing the device, and it is possible to continue to press against the ulna U at an appropriate position. Note that the number of pressing portions needs to be at least two, and may be three or four or more. The two pressing portions 24a and 24b are preferably provided parallel to the ulna U, sandwiching the ulna U, as shown in Fig. 2(b). This allows the ulna U to be appropriately compressed with a simple configuration without impairing the wearing comfort. Furthermore, the two pressing portions 24a and 24b are preferably provided at positions where they can compress not only the ulna U but also the wrist joint.

[0027] The shape of the two pressing portions 24a and 24b is not particularly limited as long as they can compress at least a portion of the ulna U so as to sandwich the ulna U. For example, they may be rectangular or cylindrical, or may be convex or elastic. As shown in FIG. 5(a), the two pressing portions 24a and 24b as convex portions may be integrally molded with the base portion 24c. As shown in FIG. 5(b), the two pressing portions 24a and 24b as convex portions may be separate bodies. As a further modification, as shown in FIG. 5(c), a member 24d that is softer and more elastic than the two pressing portions 24a and 24b may be further provided between the two pressing portions 24a and 24b, and the two pressing portions 24a and 24b may be elastic portions. A preferred embodiment for applying appropriate restriction and pressure to the movement of the wrist joint and ulna U is one in which the pressing member 24 has two pressing portions arranged parallel to the ulna U and sandwiching the ulna U, and the two pressing portions are convex and elastic.

[0028] In this embodiment, the length of the two pressing portions 24a and 24b in the direction parallel to the ulna U is preferably 20 mm or more and 100 mm or less, and more preferably 40 mm or more and 70 mm or less. The above length allows the ulna U to be appropriately compressed while also appropriately compressing the wrist joint on the little finger side, thereby limiting ulnar flexion of the wrist joint and suppressing pain in the wrist joint due to wrist rotation. Furthermore, the width of the two pressing portions 24a and 24b is preferably 10 mm or more and 25 mm or less. With this width, the ulna U can be appropriately pressed without impairing the wearing comfort. Furthermore, the thickness of the two pressing portions 24a and 24b is preferably 2 mm or more and 15 mm or less, and more preferably 4 mm or more and 8 mm or less. With this thickness, the ulna U can be compressed with an appropriate amount of force without impairing the comfort of the fit. When the two pressing portions 24a and 24b and the base portion 24c are integrally molded, the thickness of the base portion 24c is preferably 1 mm or more and 4 mm or less. With this thickness, the comfort of the fit is not impair. Furthermore, the distance between the two pressing portions 24a and 24b is preferably 5 mm or more and 20 mm or less. This distance allows the two pressing portions 24a and 24b to appropriately press the ulna U, making it difficult for the pressing member 24 to slip off the ulna U. The hardness of the two pressing portions 24a and 24b is preferably 5 or more and 20 or less in terms of Asker rubber hardness scale type C. With the above hardness, the ulna U can be compressed with an appropriate strength.

[0029] The pressing member 24 can be made of a resin material such as polyurethane, chloroprene rubber, polyester, polypropylene, or acrylic, or a foam material, which can be used to provide elasticity. Furthermore, it is preferable that the pressing member 24 is covered with a fabric made of the thread material that constitutes the main body 2, and then sewn or heat-welded to the end 22 of the main body 2.

[0030] (2-2) Finger insertion section 3 The finger insertion section 3 is a band-shaped body that is inserted onto a finger when the main body section 2 is wrapped around the wrist and is removed from the finger after wrapping. Any of the five fingers may be inserted into the finger insertion section 3, but the thumb is preferred from the viewpoint of making it easier to remove the finger insertion section 3.

[0031] As shown in FIG. 3 , finger insertion section 3 preferably comprises two bands 3a and 3b. Bands 3a and 3b are fixed to main body 2 by connecting section 30, and an opening 31 for inserting a finger is provided between bands 3a and 3b. By configuring finger insertion section 3 from two bands, it is easier to follow changes in the orientation of finger insertion section 3 compared to a single band. When a finger is inserted, there is no lift between main body 2 and finger insertion section 3, allowing the user to check the position of the device in a tight, secure fit. Furthermore, by widening finger insertion section 3 from free end 32 toward connecting section 30, the width of opening 31 formed between bands 3a and 3b is increased, making it easier to remove finger insertion section 3 from the finger. It is preferable that connecting part 30 is fixed along central axis M of main body 2. By configuring finger insertion part 3 to be foldable using connecting part 30 as a base point, wrist brace 1 can be used on either the right or left hand.

[0032] The free end 32 of the finger insertion section 3 is preferably provided with a detachable portion 33 that can be attached to and detached from the outer surface of the main body section 2. The detachable portion 33 can be any known attachment / detachment means, such as a hook-and-loop fastener, a button, a hook, or a string. Among these, an attachment / detachment means that is not bulky when attached to the main body section 2 and does not spoil the appearance is preferred, and hook-and-loop fasteners are particularly preferred. The detachable portion 33 may be provided on at least one of the free ends 32. By providing the detachable portion 33, the finger insertion section 3 can be fixed to the main body section 2 after being removed from the finger, allowing use without the finger insertion section 3 dangling and affecting hand movements, and without spoiling the appearance.

[0033] The longitudinal length of finger insertion section 3 is preferably 6 cm or more and 12 cm or less to make it easy to remove finger insertion section 3 from the finger. By making finger insertion section 3 the above length, the attachment position can be adjusted so that two ends 22 and 23 come into contact with the ulna U side when attaching main body section 2. The thickness of finger insertion section 3 is preferably 0.1 mm or more and 5 mm or less to make finger insertion section 3 easy to remove and to avoid being bulky when fixed to main body section 2. The width of band-shaped body 3a or band-shaped body 3b is preferably 0.5 cm or more and 3 cm or less, and it is more preferable that band-shaped body 3a and band-shaped body 3b have the same width.

[0034] The thread material for the finger insertion section 3 may be either natural or chemical, such as polyamide, polyester, acrylic, cellulose (cotton, rayon, polynosic, lyocell, etc.), polyurethane, polyolefin (polyethylene, polypropylene, etc.), acetate, polyvinylidene chloride, polyvinyl chloride, or wool (wool, animal hair, etc.), or a combination of these fibers. Available types of thread include monofilament, multifilament, twisted yarn, covered yarn, and core yarn, and may be processed to be stretchable or bulky.

[0035] Furthermore, various warp knitting or weft knitting structures can be used for knitting the finger insertion section 3, such as double raschel fabric, plain knitting fabric, pearl knitting fabric, tuck knitting fabric, circular knitting fabric, flat knitting fabric, raschel fabric, pile knitting fabric, and plated knitting fabric.

[0036] (2-3) About the fixed belt 4 The fixing belt 4 is a band-shaped body that is provided on the outer surface of the main body 2 and further compresses the wrist joint. The fixing belt 4 may be fixed to any position on the outer surface of the main body 2.

[0037] As shown in Figure 3, the tip of the fixing belt 4 is preferably bifurcated, consisting of branched portions 41a and 41b. By bifurcating the tip, the fixing strength of the fixing belt 4 can be finely adjusted. The outer surface of the fixing belt 4 is preferably a hook-and-loop fastener made of a raised filament material in a loop shape in order to secure the fixing belt 4. Here, the outer surface of the fixing belt 4 refers to the surface of the fixing belt 4 that does not come into contact with the main body 2. The inner surfaces of the tips of branched portions 41a and 41b of the fixing belt 4 are provided with hook-and-loop fastener portions 42a and 42b, which are raised in a hook-and-loop shape. After wrapping the fixing belt 4 around the wrist, the outer surface of the fixing belt 4 is engaged with the branched portions 41a and 41b, thereby allowing the fixing belt 4 to be fastened with any desired strength. Here, the inner surface of the fixing belt 4 refers to the surface of the fixing belt 4 that comes into contact with the main body 2. The fastening means on the outer and inner surfaces of the fixing belt 4 is not limited to hook-and-loop fasteners, and known fastening means other than hook-and-loop fasteners may be used, such as buckles or snap buttons.

[0038] The thread material constituting the fixing belt 4 may be either natural or chemical, and may be, for example, a thread made solely of polyamide fibers, polyester fibers, acrylic fibers, cellulose fibers (cotton, rayon, polynosic, lyocell, etc.), polyurethane fibers, polyolefin fibers (polyethylene, polypropylene, etc.), acetate fibers, polyvinylidene chloride fibers, polyvinyl chloride fibers, or wool (wool, animal hair, etc.), or a thread made of a mixture of these fibers. Usable types of thread include monofilament, multifilament, twisted yarn, covered yarn, and core yarn, and may also be processed to be stretchable or bulky.

[0039] The fixed belt 4 can be knitted using various warp or weft knitting structures, such as double raschel fabric, plain knit fabric, pearl knit fabric, tuck knit fabric, circular knit fabric, flat knit fabric, raschel fabric, pile knit fabric, and coated yarn knit fabric.

[0040] (3) Example of how to wear a wrist brace Next, an example of the procedure for wearing the wrist orthosis 1 according to this embodiment will be described with reference to FIGS. 6 to 9. Note that explanations of common reference numerals in the drawings will be omitted unless particularly necessary. In this embodiment, an example of the procedure for wearing the wrist orthosis on the wearer's right hand RH will be described. Note that the wrist orthosis according to the present invention can be worn on either the left or right hand of the wearer by bending the finger insertion section 3 in the opposite direction from when worn on the right hand.

[0041] First, the finger insertion section 3 is placed on the thumb RF of the right hand, and then the inner surface of the main body 2 is placed on the palm side of the right hand RH, and the pressing member 24 attached to the end 22 is used to compress at least a part of the ulna U of the right hand RH so as to pinch the ulna U, and the main body 2 is wrapped around the wrist from the palm side to the back side. Then, the fixing end 25, which has a hook-and-loop fastener attached to the end 23, is attached to the outer surface of the main body 2 and fixed as shown in FIG.

[0042] 7, the finger insertion section 3 attached to the thumb RF of the right hand is removed, and the free end 32 is fixed to the outer surface of the main body section 2 using the detachable section 33. At this time, it is preferable to fix the finger insertion section 3 in close contact with the main body section 2.

[0043] 8 and 9, the fixing belt 4 is pulled and wound around the wrist from the palm side to the back side, and the branched portions 41a and 41b are fastened to the outer surface of the fixing belt 4 using the hook-and-loop fasteners 42a and 42b provided at the tip of the fixing belt 4. At this time, the fixing belt 4 fastens the finger insertion portion 3 from the outside, so that the finger insertion portion 3 is sandwiched between the main body portion 2 and the fixing belt 4. This prevents the finger insertion portion 3 from coming off the main body portion 2 and dangling.

[0044] As described above, the wrist orthosis 1 according to this embodiment compresses at least a portion of the ulna U by sandwiching the ulna U with the pressing member 24, so that even if the wrist or arm is moved while wearing the orthosis, the pressing member 24 is unlikely to slip off the ulna U, and can continue to compress the ulna U at an appropriate position.

[0045] Furthermore, the wrist orthosis 1 according to this embodiment can be easily worn with one hand by providing a finger insertion section 3 as an optional configuration, and can stably fix the ulna U side without interfering with hand movement after wearing. [Explanation of symbols]

[0046] 1. Wrist brace 2 Main body 3 Finger insertion area 4 Fixation belt 21 Central part 22, 23 End 24 Pressing member 24a, 24b pressing parts 25 Fixed end U ulna R radius RH right hand RF right thumb

Claims

1. a main body that covers the wrist; a pressing member provided on the main body portion, the pressing member has at least two pressing portions, The at least two pressing portions are arranged parallel to the ulna with the ulna sandwiched between them, and a gap is provided between the at least two pressing portions, thereby compressing at least a portion of the ulna so as to sandwich the ulna at a position where the radius is not pressed.

2. a main body that covers the wrist; a pressing member provided on the main body portion, the pressing member has at least two pressing portions, The at least two pressing parts are arranged parallel to the ulna with the ulna in between, and a gap is provided between the at least two pressing parts, thereby compressing at least a part of the ulna so as to sandwich the ulna at a position where the ulna can be pressed without using the radius.

3. The wrist brace according to claim 1 or 2, wherein the at least two pressing portions are arranged on a side where the triangular fibrocartilage complex is located when the main body portion is covering the circumference of the wrist.

4. The wrist orthosis according to any one of claims 1 to 3, wherein one of the pressing parts is disposed at a position where it can press against the protrusion of the ulna on the little finger side.

5. The wrist brace according to any one of claims 1 to 4, wherein the at least two pressing portions are provided parallel to the ulna with the ulna in between.

6. The wrist orthosis according to any one of claims 1 to 5, wherein the at least two pressing portions are convex portions.

7. The wrist brace according to any one of claims 1 to 6, wherein the at least two pressing portions are elastic portions.

8. The wrist orthosis according to any one of claims 1 to 7, wherein the length of the at least two pressing portions in a direction parallel to the ulna is 20 mm or more and 100 mm or less.

9. The wrist brace according to any one of claims 1 to 8, wherein the thickness of the at least two pressing portions is 2 mm or more and 15 mm or less.

10. The main body portion comprises a central portion and two end portions, At least one of the two ends is wider than the central portion, The wrist brace according to any one of claims 1 to 9, wherein the pressing member is provided at the wide end portion.

11. the main body further includes a finger insertion portion having an opening, The wrist orthosis according to any one of claims 1 to 10, wherein, after the finger insertion portion is attached to the finger, the main body compresses at least a portion of the ulna so as to sandwich the ulna with the pressing member, and is rotated from the palm side to the back side to cover the periphery of the wrist.

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