JP2020171465A - Wrist orthosis - Google Patents

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

The present invention relates to a wrist orthosis that is attached to a wrist joint site of a patient with wrist joint injury, particularly TFCC injury, and fixes the wrist joint.

Wrist joints can be damaged when twisted or overused in sports or work. A typical disease is triangular fibrocartilage complex injury. This disease, also called TFCC injury (Triangular Fibrocartilage Complex Industries), is a disease caused by excessive stress on the triangular fibrocartilage complex (TFCC), which acts as a load distribution and cushion for the wrist joint. This TFCC injury causes pain due to the movement of the wrist joint and the arm.

As a wrist joint device that reduces pain caused by TFCC injury, Patent Document 1 has hardness and elasticity that do not impair shape retention, and on the ulnar or radial side of the wrist joint, the forearm bone and proximal carpal. A wrist joint device is disclosed that includes a compression pad that is press-fitted between the bones and holds a gap between the two. Further, Patent Document 2 discloses a wristband having a pressing member that presses the ulnar styloid process from the dorsal side to the volar side of the hand.

Japanese Unexamined Patent Publication No. 2003-061995 Japanese Unexamined Patent Publication No. 2003-019151

However, in the conventional wrist orthosis, if the wrist joint or the arm is moved during wearing, the pressing member that presses the ulna may shift, and the ulna may not be pressed appropriately. Therefore, an object of the present invention is to provide a wrist joint orthosis that can appropriately press the ulna even if the wrist joint or arm is moved during wearing.

The present inventors have found that the above-mentioned problems can be solved by providing a member that presses the wrist orthosis so as to sandwich the ulna.

That is, the present invention includes a main body portion that covers the wrist circumference and a pressing member provided on the main body portion, and the pressing member presses at least a part of the ulna so as to sandwich the ulna. It is a tool.

In the wrist orthosis according to the present invention, the pressing member that presses the ulna does not easily shift, so that the ulna can be appropriately pressed even if the wrist joint or arm is moved during wearing. The effects described here are not necessarily limited, and may be any of the effects described in the present specification.

It is a schematic diagram of the right hand. It is a schematic diagram which shows the relationship between the right hand and the pressing member of the wrist orthosis which concerns on one Embodiment of this invention. It is a schematic diagram which shows the outer surface of the wrist orthosis in an open state which concerns on one Embodiment of this invention. It is a schematic diagram which shows the inner surface of the wrist joint orthosis in an open state which concerns on one Embodiment of this invention. It is a schematic diagram which shows the modification of the pressing member in this invention. It is a schematic diagram which shows the attachment procedure of the wrist orthosis which concerns on one Embodiment of this invention. It is a schematic diagram which shows the attachment procedure of the wrist orthosis which concerns on one Embodiment of this invention. It is a schematic diagram which shows the attachment procedure of the wrist orthosis which concerns on one Embodiment of this invention. It is a schematic diagram which shows the state after wearing the wrist orthosis which concerns on one Embodiment of this invention.

Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings. The embodiments described below show an example of typical embodiments of the present invention, and the scope of the present invention is not limited thereto. The present invention can also be combined with any of the following examples and modifications thereof.

(1) Outline of the present invention First, the outline of the present invention will be described with reference to FIGS. 1 and 2.
FIG. 1 is a schematic view of the right hand RH, and FIG. 2A is a cross-sectional view showing the relationship between the right hand RH and the pressing member 24 of the wrist joint orthosis 1 according to the embodiment of the present invention. b) is a side view showing the relationship between the right hand RH when the right hand RH is viewed from the palm side and the pressing member 24 of the wrist joint orthosis 1 according to the embodiment of the present invention. In FIG. 2, the main body 2 of the wrist orthosis 1 is not shown in order to show the positional relationship between the pressing member 24 and the bone of the right hand RH.
As shown in FIG. 1, the right hand RH includes a radius R located on the thumb side and an ulna U located on the little finger side. Further, there is a distal radial joint D between the radius R and the ulna U, and the triangular fibrocartilage complex T connects the radius R and the ulna U and contributes to the stabilization of the distal radial joint D. ..

TFCC injury caused by damage to the triangular fibrocartilage complex T causes pain in the wrist joint when the wrist joint is bent toward the little finger side (flexor carpi ulnaris) or the wrist is rotated.

We investigated a method of compressing the ulna U to reduce wrist pain due to TFCC injury. However, as shown in FIG. 2A, the ulna U has a shape with a slight protrusion on the little finger side, so even if a member that simply presses the ulna U side is provided, the member is affected by the movement of the wrist joint or arm. The position of the ulna U is easily displaced, and the ulna U may not be properly compressed.

In view of the above circumstances, the present inventors have completed the present invention. As shown in FIGS. 2A and 2B, the present inventors can perform movements of the wrist joint and the arm by providing a pressing member 24 that presses at least a part of the ulna U so as to sandwich the ulna U. It has been found that the position of the pressing member 24 with respect to the ulna U does not easily shift even if the movement is performed, and the ulna U can be appropriately compressed.
According to the pressing member 24, the flexor carpi ulnaris of the wrist joint can be appropriately limited, and the pain of the wrist joint due to the flexor carpi ulnaris of the wrist joint can be suppressed. Further, according to the pressing member 24, it is possible to prevent the radius R and the ulna U from being separated from each other even when the wrist is rotated, and the pain of the wrist joint due to the wrist rotation can also be suppressed.

(2) Configuration of Wrist Joint Orthosis 1 The configuration of the wrist joint orthosis 1 according to the embodiment of the present invention will be described with reference to FIGS. 2 to 5. The description of the reference numerals common to the drawings will be omitted unless otherwise required.

FIG. 3 is a schematic view showing the outer surface of the wrist orthosis 1 according to the present embodiment in an open state. Here, the outer surface is an outer surface that does not come into contact with the hand when the wrist joint orthosis 1 is attached to the hand. FIG. 4 is a schematic view showing an inner surface of the wrist orthosis 1 according to the present embodiment in an open state. Here, the inner surface is an inner surface that comes into contact with the hand when the wrist joint orthosis 1 is worn. FIG. 5 is a schematic view showing a modified example of the pressing member 24.

The wrist orthosis 1 according to the present embodiment may include at least a main body portion 2, and may further include a finger insertion portion 3 and a fixing belt 4. The main body 2 is a member for covering the wrist circumference. A pressing member 24 that presses the ulna U is provided on the inner surface of the main body 2. The finger insertion portion 3 is a band-shaped body into which a finger is inserted when the main body portion 2 is wound around the wrist, and is fixed to the main body portion 2 by a connecting portion 30. Further, the fixed belt 4 is a strip-shaped body wound around the outer surface of the main body 2. Hereinafter, each part will be described in more detail.

(2-1) Main body 2 The main body 2 is a member for covering the wrist circumference. The shape of the main body 2 is not particularly limited as long as it can cover the wrist circumference, but for example, a horizontally long strip-shaped body, a tubular tubular body, a glove-shaped shape that fits the outer shape of the hand and wrist as it is, etc. It may be. From the viewpoint that the fixing force of the wrist joint orthosis 1 can be changed according to the size of the patient's hand and the condition of the affected area, it is preferable to use a horizontally long strip as shown in FIG.

The main body 2 in the present embodiment includes a central portion 21 and two end portions 22 and 23. Preferably, the central portion 21 is a portion that hits the radius R of the wrist when the main body portion 2 is wrapped around the wrist, and the two end portions 22 and 23 are portions that hit the ulna U of the wrist.
The shapes of the two ends 22 and 23 are not particularly limited as long as the joint portion on the ulnar U side that needs to be fixed can be firmly fixed, and can be, for example, a polygonal shape, a circular shape, or the like. Further, the two end portions 22 and 23 may have different shapes, such as the end portion 22 having a substantially pentagonal shape and the end portion 23 having a substantially hexagonal shape.

It is preferred that at least one of the two ends 22 and 23 is wider than the central portion 21, and even more preferably both ends are wider than the central portion 21. Since the end portion 22 and / or the end portion 23 is wider than the central portion 21, the ulnar U side can be fixed more stably. On the other hand, since the central portion 21 is narrower than the end portion 22 and / or the end portion 23, the fixation area on the radius R side can be minimized while the ulnar U side can be stably fixed. , It is possible to reduce the influence of hindering the movement of the hand such as grasping an object. That is, by mounting the main body 2 so that the wide end 22 and / or 23 hits the ulna U, only the joint portion on the ulna U side that needs to be fixed can be firmly fixed and an object can be grasped. It is possible to reduce the influence of hindering the movement of the hand.

In the present embodiment, the length of the central portion 21 is preferably 30 mm or more and 90 mm or less. Further, 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 ends 22 and 23 are preferably 40 mm or more and 100 mm or less. Further, the width of the central portion 21 is preferably 40 mm or more and 120 mm or less.

On the outer surface of the main body 2 in the present embodiment, a thread-like material is raised in a loop shape in order to fix the end of the inner side surface of the main body 2 and to engage the finger insertion portion 3 described later. It is preferable to use a hook-and-loop fastener.
Further, a fixed end portion 25 for fixing to the outer surface of the main body portion 2 may be provided on the inner side surface of the end portion 23. As the fixed end portion 25, it is preferable to provide a hook-shaped raised surface fastener in order to engage and fix the outer surface of the main body portion 2 provided with the loop-shaped surface fastener. As a result, after the main body 2 is wrapped around the wrist, it can be engaged with the outer surface of the main body 2 to fix the main body 2 to the wrist with arbitrary strength.
The method of covering and fixing the main body around the wrist is not limited to the method of providing the surface fastener as the engaging means on the outer surface and the inner surface of the main body, and a known fixing means other than the surface fastener is adopted. For example, buckles, snap buttons, strings, etc. may be used.

The thread material constituting the main body 2 may be any of natural fibers and chemical fibers, for example, 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, yarns using wool (wool, animal hair, etc.) alone, or a mixture of these fibers Can be used. As the type of yarn, monofilament, multifilament, twisted yarn, covered yarn, core yarn and the like can be used, and those subjected to expansion / contraction processing, bulky processing and the like may be used.

Further, as the knitting of the main body 2, various knitting structures of warp knitting or weft knitting can be used. Knitted fabrics, flat knitted fabrics, tricot fabrics, Russell fabrics, pile knitted fabrics, spliced yarn knitted fabrics, etc. can be used.
Here, the double Russell fabric is made by connecting loops called loops while making stitches from a single thread, and the elasticity of the loop can contribute to the stretching force, and it is possible to allow air to pass through this loop. it can. Therefore, by using the double Russell fabric, breathability can be ensured.

(2-1-1) Pressing member 24 As shown in FIG. 4, the wrist orthosis 1 according to the present embodiment includes a pressing member 24 on the inner surface of the main body 2. The pressing member 24 is provided at a position where it hits the ulna U when the main body portion 2 is attached, and is preferably provided on the inner surface of the end portion 22. In the present embodiment, by pressing at least a part of the ulna U so as to sandwich the ulna U with the pressing member 24, the ulnar flexion of the wrist joint can be appropriately limited, and the wrist joint due to the ulnar flexion of the wrist joint can be appropriately restricted. Pain can be suppressed. Further, according to the pressing member 24, it is possible to prevent the radius R and the ulna U from being separated from each other even when the wrist is rotated, and the pain of the wrist joint due to the wrist rotation can also be suppressed.

Here, the pressing member 24 in the present embodiment will be described in detail with reference to FIGS. 2, 4 and 5.
The pressing member 24 in the present embodiment preferably has two pressing portions 24a and 24b that press the ulna U, and presses at least a part of the ulna U so that the two pressing portions 24a and 24b sandwich the ulna U. To do. As a result, even if the wrist joint or arm is moved during wearing, the pressing member 24 does not easily shift from the ulna U, and the ulna U can be continuously pressed at an appropriate position. The number of the pressing portions may be at least two, and may be three or four or more.
As shown in FIG. 2B, the two pressing portions 24a and 24b are preferably provided parallel to the ulna U with the ulna U interposed therebetween. As a result, the ulna U can be appropriately pressed with a simple configuration without impairing the wearing feeling. Further, it is preferable that the two pressing portions 24a and 24b are provided at positions where not only the ulna U but also the wrist joint can be compressed.

The shapes of the two pressing portions 24a and 24b are not particularly limited as long as they can press at least a part of the ulna U so as to sandwich the ulna U, but may be a rectangular parallelepiped shape or a cylindrical shape, for example, a convex portion or a convex portion. It may be an elastic part. Further, as shown in FIG. 5A, the two pressing portions 24a and 24b which are convex portions may be integrally molded together with the base portion 24c, and as shown in FIG. 5B, the convex portions 2 The pressing portions 24a and 24b may be separate bodies. As a further modification, as shown in FIG. 5C, a member 24d that is softer and more elastic than the two pressing portions 24a and 24b is further provided between the two pressing portions 24a and 24b. The pressing portions 24a and 24b may be elastic portions.
As a preferred embodiment for applying appropriate restriction and compression to the movement of the wrist joint and the ulna U, the pressing member 24 has two pressing portions provided parallel to the ulna U with the ulna U sandwiched therein. One pressing portion is a convex portion and has elasticity.

In the present 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. With the above length, the ulna U can be properly compressed and the wrist joint on the little finger side can also be appropriately compressed. Therefore, while limiting the flexor carpi ulnaris of the wrist joint, the wrist joint can be rotated by rotating the wrist. Pain can also be suppressed.
Further, the widths of the two pressing portions 24a and 24b are preferably 10 mm or more and 25 mm or less. With the above width, the ulna U can be appropriately compressed without impairing the wearing feeling.
Further, the thickness of the two pressing portions 24a and 24b is preferably 2 mm or more and 15 mm or less, and preferably 4 mm or more and 8 mm or less. With the above thickness, the ulna U can be pressed with an appropriate strength without impairing the wearing feeling. 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 the above thickness, the wearing feeling is not impaired.
Further, the distance between the two pressing portions 24a and 24b is preferably 5 mm or more and 20 mm or less. With the above interval, the two pressing portions 24a and 24b can appropriately press the ulna U, and the pressing member 24 is less likely to be displaced from the ulna U.
The hardness of the two pressing portions 24a and 24b is preferably 5 or more and 20 or less in the Asker rubber hardness tester C type. With the above hardness, the ulna U can be pressed with an appropriate strength.

As the material of the pressing member 24, a resin material such as polyurethane, chloroprene rubber, polyester, polypropylene, or acrylic, or a foam material can be used to impart elastic properties. Further, it is preferable that the pressing member 24 is covered with a fabric made of the thread material constituting the main body 2 and then sewn or heat-welded to the end 22 of the main body 2.

(2-2) About the finger insertion portion 3 The finger insertion portion 3 is a band-shaped body that is inserted into the finger when the main body portion 2 is wound around the wrist and is removed from the finger after the winding. Any of the five fingers may be used as the finger to be inserted into the finger insertion portion 3, but the thumb is preferable from the viewpoint of making it easy to remove the finger insertion portion 3.

As shown in FIG. 3, the finger insertion portion 3 is preferably composed of two strips 3a and 3b. The two strips 3a and 3b are fixed to the main body 2 by a connecting portion 30, and have an opening 31 for inserting a finger between the two strips 3a and 3b. By configuring the finger insertion portion 3 with two strips, it becomes easier to follow the change in the orientation of the finger insertion portion 3 as compared with the case where the finger insertion portion 3 is composed of one strip, and when the finger is inserted, the main body portion It becomes possible to confirm the mounting position in a state where there is no floating between 2 and the finger insertion portion 3 and they are in close contact with each other. Further, by making the shape widened from the free end 32 of the finger insertion portion 3 toward the connecting portion 30, the width of the opening 31 formed between the two strips 3a and 3b becomes wider, and the finger The insertion portion 3 can be easily removed from the finger.
The connecting portion 30 is preferably fixed along the central axis M of the main body portion 2. The wrist joint orthosis 1 can be used for both the right hand and the left hand by making the finger insertion portion 3 foldable with the connecting portion 30 as a base point.

It is preferable that the free end 32 of the finger insertion portion 3 is provided with a detachable portion 33 that can be attached to and detached from the outer surface of the main body portion 2. A known attachment / detachment means can be adopted for the attachment / detachment portion 33, and may be, for example, a surface fastener, a button, a hook, a string, or the like. Among these, attachment / detachment means that are not bulky when fixed to the main body 2 and do not impair the appearance are preferable, and among them, a hook-and-loop fastener is particularly preferable. 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 portion 3 can be removed from the finger and then fixed to the main body portion 2, and the finger insertion portion 3 can be used without hanging around and affecting the movement of the hand or the like. The appearance is not spoiled.

The length of the finger insertion portion 3 in the longitudinal direction is preferably 6 cm or more and 12 cm or less so that the finger insertion portion 3 can be easily removed from the finger. By setting the finger insertion portion 3 to the above length, the attachment position can be adjusted so that the two end portions 22 and 23 come into contact with the ulnar U side when the main body portion 2 is attached. The thickness of the finger insertion portion 3 is preferably 0.1 mm or more and 5 mm or less so that the finger insertion portion 3 can be easily removed and is not bulky when fixed to the main body portion 2. The width of the band-shaped body 3a or the band-shaped body 3b is preferably 0.5 cm or more and 3 cm or less, respectively, and more preferably the band-shaped bodies 3a and 3b have the same width.

The thread material constituting the finger insertion portion 3 may be any of natural fibers and chemical fibers. For example, polyamide fibers, polyester fibers, acrylic fibers, cellulose fibers (cotton, rayon, polynosic, lyocell, etc.), Polyurethane fiber, polyolefin fiber (polyethylene, polypropylene, etc.), acetate fiber, polyvinylidene chloride fiber, polyvinyl chloride fiber, yarn using wool (wool, animal hair, etc.) alone, or these fibers Mixed threads can be used. As the type of yarn, monofilament, multifilament, twisted yarn, covered yarn, core yarn and the like can be used, and those subjected to expansion / contraction processing, bulky processing and the like may be used.

Further, as the knitting of the finger insertion portion 3, various knitting structures of warp knitting or weft knitting can be used, for example, double raschel fabric, flat knitting fabric, pearl knitting fabric, tuck knitting fabric, circular knitting fabric, flat knitting fabric, etc. Russell fabric, pile knitted fabric, spliced yarn knitted fabric, etc. can be used.

(2-3) Fixed belt 4 The fixed belt 4 is a band-shaped body provided on the outer surface of the main body 2 and further presses the wrist joint. The fixing belt 4 may be fixed at any position on the outer surface of the main body 2.

As shown in FIG. 3, the tip of the fixing belt 4 is composed of branching portions 41a and 41b, and is preferably bifurcated. 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 in which the thread-like material is raised in a loop shape in order to fix the fixing belt 4. Here, the outer surface of the fixed belt 4 is a surface on which the fixed belt 4 does not contact the main body 2.
The inner side surfaces of the tips of the branched portions 41a and 41b of the fixed belt 4 are provided with hook-shaped raised surface fastener portions 42a and 42b. After wrapping the fixing belt 4 around the wrist, the fixing belt 4 can be fixed with an arbitrary strength by engaging the outer surface of the fixing belt 4 with the branching portions 41a and 41b. Here, the inner surface of the fixed belt 4 is a surface on which the fixed belt 4 contacts the main body 2.
The engaging means on the outer surface and the inner surface of the fixed belt 4 is not limited to the hook-and-loop fastener, and known engaging means other than the hook-and-loop fastener can be adopted, and for example, a buckle or a snap button may be used.

The thread material constituting the fixed belt 4 may be any of natural fibers and chemical fibers, for example, 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, yarns using wool (wool, animal hair, etc.) alone, or a mixture of these fibers Can be used. As the type of yarn, monofilament, multifilament, twisted yarn, covered yarn, core yarn and the like can be used, and those subjected to expansion / contraction processing, bulky processing and the like may be used.

As the knitting of the fixed belt 4, various knitting structures of warp knitting or weft knitting can be used, for example, double Russell fabric, flat knitting fabric, pearl knitting fabric, tuck knitting fabric, circular knitting fabric, flat knitting fabric, Russell fabric, etc. Pile knitted fabric, spliced yarn knitted fabric, etc. can be used.

(3) Example of Wearing Procedure for Wrist Orthosis Next, an example of wearing procedure for wrist orthosis 1 according to the present embodiment will be described with reference to FIGS. 6 to 9. The description of the reference numerals common to the drawings will be omitted unless otherwise required. In this embodiment, an example of the procedure of attaching to the wearer's right hand RH will be described. 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 portion 3 to the opposite side of the right hand.

First, after the finger insertion portion 3 is attached to the right thumb RF, the inner side surface of the main body portion 2 is placed on the palm side of the right hand RH, and the ulna U of the right hand RH is sandwiched by the pressing member 24 provided at the end portion 22. Press at least a part of the ulna U and turn it from the palm side to the instep side and wrap it around the wrist. Then, the fixed end portion 25 provided with the surface fastener on the end portion 23 is engaged with the outer surface of the main body portion 2 and fixed as shown in FIG.

Next, as shown in FIG. 7, the finger insertion portion 3 attached to the right thumb RF is removed, and the free end 32 is fixed to the outer surface of the main body portion 2 by using the attachment / detachment portion 33. At this time, it is preferable that the finger insertion portion 3 is brought into close contact with the main body portion 2 and fixed.

Then, as shown in FIGS. 8 and 9, the fixing belt 4 is pulled, turned from the palm side to the instep side and wound around the wrist, and the branching portion is provided by using the hook-and-loop fastener portions 42a and 42b provided at the tip of the fixing belt 4. 41a and 41b are fixed to the outer surface of the fixing belt 4. At this time, since the fixing belt 4 fixes the finger inserting portion 3 from the outside, the finger inserting portion 3 is sandwiched between the main body portion 2 and the fixing belt 4. Therefore, it is possible to prevent the finger insertion portion 3 from coming off the main body portion 2 and hanging around.

As described above, the wrist joint device 1 according to the present embodiment presses at least a part of the ulna U so as to sandwich the ulna U with the pressing member 24, so that the wrist joint and the arm can be moved during wearing. , The pressing member 24 does not easily shift from the ulna U, and the ulna U can be continuously pressed at an appropriate position.

Further, the wrist orthosis 1 according to the present embodiment can be easily attached with one hand by providing the finger insertion portion 3 as an arbitrary configuration, and the ulna U can be easily attached without interfering with the movement of the hand after attachment. The side can be fixed stably.

1 Wrist joint orthosis 2 Main body 3 Finger insertion part 4 Fixed belt 21 Central part 22, 23 End part 24 Pressing member 24a, 24b Pressing part 25 Fixed end U Ulna R Radius RH Right hand RF Right thumb

Claims (8)

The main body that covers the wrist area and
A pressing member provided on the main body is provided.
A wrist orthosis in which the pressing member presses at least a part of the ulna so as to sandwich the ulna. The pressing member has at least two pressing portions.
The wrist orthosis according to claim 1, wherein the at least two pressing portions are provided in parallel with the ulna so as to sandwich the ulna. The wrist orthosis according to claim 2, wherein the at least two pressing portions are convex portions. The wrist orthosis according to claim 2, wherein the at least two pressing portions are elastic portions. The wrist orthosis according to any one of claims 2 to 4, 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. The wrist orthosis according to any one of claims 2 to 5, wherein the thickness of at least two pressing portions is 2 mm or more and 15 mm or less. The main body is composed of a central part and two end parts.
At least one of the two ends is wider than the center
The wrist orthosis according to any one of claims 1 to 6, wherein the pressing member is provided at the wide end portion. The body portion further comprises a finger insertion portion having an opening.
After attaching the finger insertion portion to the finger, the main body presses at least a part of the ulna so as to sandwich the ulna with the pressing member, and turns from the palm side to the instep side to cover the wrist circumference. The wrist orthosis according to any one of Items 1 to 7.