JP2020058679A - Ankle foot orthosis - Google Patents

Abstract

To provide an ankle foot orthosis capable of achieving natural centroid movement in walking, and achieving safer walking.SOLUTION: An ankle foot orthosis comprises: a lower leg support part 30 extending to a position higher than a heel portion; and a foot part main body 14 for supporting a lower part of a heel part of a wearer. The foot part main body 14 has, as a principal part, a sole mount part 18 on which a sole from a heel to roots of toes of a wearer is mounted. A big toe holding part 22 on which a big toe is mounted is arranged separately from the sole mount part 18 and is arranged to face an end part on the root side of toes of the sole mount part 18. An other toe guide part 24 on which toes other than the big toe are mounted, is arranged separately from the sole mount part 18 and is arranged to face the end prat on the root side of toes of the sole mount part 18 and is adjacent to the big toe holding part 22. A sheet-shaped cover material 20 integrally covers top surfaces of the sole mount part 18, the big toe holding part 22 and other toe guide part 24.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a short leg brace that naturally moves the center of gravity during walking and enables safer walking, and is suitable for an assisting device or the like that allows a patient who has difficulty walking due to hemiplegia to walk. Is.

  As a sequela of cerebrovascular disease, there is physical paralysis such as hemiplegia. A lower limb orthosis is known as one of the assisting devices that enable a patient who has difficulty walking because one leg does not move due to this hemiplegia. Among them, there are two types of short leg orthosis, which are general auxiliary equipment, such as shoe-type orthosis and plastic-type orthosis. And as the main part of these short leg orthoses, there are respective soles for supporting the back surface of the foot.

  In addition, a metal part called stirrup (A stirrup) is inserted between the rubber sole of the shoe and the leather that wraps the foot on the sole of the shoe-type orthosis, which is one of the two types of short leg orthosis. Due to the flexibility of the leather part, some degree of dorsiflexion is possible. However, if the material of the shoes is made too soft, plantar flexion also occurs, so it was not possible to secure a sufficient range of dorsiflexion.

  On the other hand, there are roughly two types of plastic type orthosis depending on the length of the sole. Specifically, there are two types: one that covers the fingertips with the sole of the foot and one that has the sole cut off in the middle of the foot, but the type that can correct croats and clubfoot is the type that covers the fingertips. Is. However, although the type in which the fingertips are covered is slightly flexible as a whole, it was not possible to smoothly move the center of gravity while maintaining the correction function.

  On the other hand, in general, ankle foot orthosis has flexibility to some extent, but the sole of the foot is a single plate, and there is no one that follows the general gait by moving like an arch of the sole of the foot. . For this reason, the conventional short leg orthosis has problems such as unnatural movement of the center of gravity and difficulty climbing up stairs.

The following Patent Documents 1 to 5 show specific examples of the short leg orthosis according to the related art.
For example, Patent Document 1 discloses a technique in which a footbed, which is the sole of the foot on which the sole is placed, has a single plate shape. Further, Patent Document 2 discloses a configuration in which a front flat plate member on which the toes are integrally placed pivots “upward only” around a metatarsophalangeal joint (root of the finger) as an axis. Further, in Patent Documents 3 to 5 as well, as in Patent Document 2, a configuration corresponding to a finger placement portion on which toes are integrally placed is disclosed.

JP 2017-079929 Patent No. 5930354 JP 2018-99767 Patent No. 5841787 Patent No. 6253049

  Here, the general healthy person P puts on the heel (heel rocker) as shown in FIG. 6 (A) after stepping on one foot, and then from the state (ankle rocker) of FIG. 6 (B) to FIG. 6 (C). After moving the center of gravity of the body forward as shown in FIG. 6D, the foot on the opposite side is stepped as shown in FIG. 6D. At this step, the foot on the back side is kicked while the toes are bent ( Forefoot rocker) is walking in a procedure that pushes the body forward.

  However, in the structure disclosed in Patent Document 1, as shown in FIG. 7, the sole 112 on which the sole of the short leg brace 110 is placed has a single plate shape, so that the toes are bent. I can't reproduce the action of kicking. Further, not only in Patent Document 2 but also in Patent Documents 3 to 5, since the toes are integrally placed and the entire toes move integrally, the thumb to which the center of gravity of the body is particularly added can be freely moved. It could not be moved, and the movement of the center of gravity during walking was unnatural, so it could not be said that sufficient safe walking was achieved.

  The present invention has been made in view of the above background, and an object of the present invention is to provide a short leg brace that allows the center of gravity to move naturally during walking and enables safer walking.

The invention according to claim 1 that has solved the above-mentioned problems, comprises a lower leg support portion extending to a position higher than the ankle site,
Connected to this lower leg support part, the sole placement part on which the sole from the heel to the base of the toes is placed,
A thumb holding portion on which the big toe is placed, which is connected to the end portion of the sole placing portion on the base side of the toes so as to rotate only upward.
The toes other than the big toe are placed so that they are separated from the thumb holding part and are adjacent to each other, and are connected to the end of the foot rest part on the base side of the toes so as to rotate only upward. Another finger guide,
An orthosis with short legs.

  According to the short leg orthosis according to claim 1, the foot sole placing portion for placing the sole of the foot from the heel to the base of the toe is connected to the lower leg supporting portion extending to a position higher than the ankle site. The thumb holding portion on which the big toe is placed is coupled to the end portion of the sole placing portion on the base side of the toe so as to rotate only upward. In addition, another finger guide part for placing a toe other than the big toe is located at a position adjacent to the thumb holding part while being separated from the thumb holding part. It is connected so that it can rotate only.

  On the other hand, when the thumb holding part and the other finger guiding part bend in the plantar direction with respect to the sole placement part, the original role of the short leg orthoses to correct croupes and clubfoot, which are peculiar to patients with lower limb paralysis. Will be lost. If the toes fall forward, the wearer may stumble.

  In other words, by connecting the thumb holding part on which the toe is placed and the other finger guide part so as to rotate only upward with respect to the base end of the toe, these can be bent only in the dorsiflexion direction. It was a mechanism to do. Furthermore, since the thumb holding portion on which the toe is placed and the other finger guide portion on which the toes other than the toe are placed are separated, the toe and the back of the toes other than the toe are separated. The amount of bending in the bending direction can be adjusted individually.

  In this way, not only is it possible to bend only in the direction of dorsiflexion, but the toes other than the big toe and the big toe are separated and placed individually so that the amount of bending can be adjusted. , It becomes possible to freely move only the thumb to which the center of gravity of the body is particularly added, which makes it easy to step on or kick out with the thumb. As a result, the center of gravity of the sole can be moved by utilizing the original softness of the human foot, and it is possible to promote safer and more natural walking.

  On the other hand, as a result of a walking experiment using a short leg orthosis as claimed in this claim, it was found that the movement of the center of gravity was improved, and that there was a change in each activity amount of the leg. From this, according to this claim, it can be understood that there is a rehabilitation effect in addition to the effect of allowing a natural walking.

  From the above, the short leg brace according to the present claim prevents the toes from bending in the plantar flexion direction, and separates the toes other than the big toe from the big toe and individually mounts them on the sole of the foot. By providing such a joint, even a patient who is strongly paralyzed due to a condition in which a force is exerted in the plantar flexion direction of the foot such as a croup or clubfoot, can be approximated to a natural gait. Along with this, rehabilitation of the spasticity of the legs is also linked, and the period of reintegration into society can be shortened.

  The invention according to claim 2 is characterized in that the sole rest portion, the thumb holding portion, and the other finger guide portion are formed of a hard material that does not flex when the sole is placed. It is a short leg brace. Along with this, according to the present claim, a hard material that does not flex when the sole is placed on each member is adopted to stably support the paralyzed toes. By adopting a plastic material for the and the metal material or the plastic material for the thumb holding portion and the other finger guiding portion, the strength and hardness of each member can be increased while suppressing the weight.

  According to the third aspect of the present invention, the surface of the sole facing the sole between the sole rest and the thumb holder and between the sole rest and the other finger guide is elastic and flexible. The short leg orthosis according to claim 1 or 2, wherein the short orthosis is connected by an elastic material. Along with this, according to the present claim, since plastic is reinforced by adopting a material containing fibers such as glass fiber and carbon fiber for these parts, compared with the case where ordinary plastic is adopted. As a result, the strength and hardness between each member are increased.

  The invention according to claim 4 is characterized in that an end portion of the sole mounting portion on the base side of the toe is formed in a concave shape or a convex shape, and the thumb holding portion is opposed to the end portion of the sole mounting portion on the base side of the toe. The short leg orthosis according to claim 3, wherein the other finger guide portion is formed in a convex shape or a concave shape correspondingly. That is, according to the present claim, the toes of the wearer are reliably fixed in the plantar flexion direction by being securely fixed by the engagement between the concave shape and the convex shape or the engagement between the convex shape and the concave shape. I can't turn.

  According to the short leg orthosis of the present invention, by providing a plurality of joints on the sole of the foot, the movement of the center of gravity at the time of walking becomes natural, and there is an excellent effect of enabling safer walking.

It is a perspective view which shows the short leg orthosis which concerns on embodiment of this invention. FIG. 3 is a perspective view showing the short leg orthosis according to the embodiment of the present invention, showing the state in which the short leg orthosis is attached to a person's foot. It is a side view which shows the foot main body of the short leg orthosis which concerns on embodiment of this invention. FIG. 3 is an exploded perspective view showing a foot portion main body of the short leg orthosis according to the embodiment of the present invention. FIG. 5 is a cross-sectional view taken along the line 5-5 of FIG. 1, in which (A) shows an open state in which the convex end is separated from the concave end, and (B) is the concave end. Shows a closed state in which the convex ends mesh with each other. It is explanatory drawing explaining the movement of a body center of gravity and the movement of a foot. It is a figure which shows the structure disclosed by patent document 1, (A) is a side view, (B) is a rear view.

An embodiment of a short leg orthosis according to the present invention will be described in detail below with reference to the drawings.
As shown in FIGS. 1 and 2, a short leg orthosis 10 according to the present embodiment includes a foot main body 14 that supports a lower part of the wearer's ankle and a lower leg support that extends to a position higher than the ankle site. Has 30. The foot body 14 not only supports the sole of the wearer's foot, but also includes a pair of metal connecting members 16 protruding upward from both sides thereof.

  In addition, the main body of the foot portion main body 14 is a sole mounting portion 18 on which the sole of the wearer's heel to the base of the toes is placed. It is conceivable that the base material 14B, which is the intermediate material shown in FIG. 3 of the foot main body 14, is formed of a thermosetting resin or a thermoplastic resin that is a relatively lightweight hard material. Specifically, polypropylene or the like is used. Can be made of plastic material. Here, the hard material refers to a member having a hardness such that it is hardly deformed even when a person wearing the short leg brace 10 walks. Even if the material of the member itself has a low hardness, it may have a sufficient strength depending on the structure and the shape thereof is hardly deformed.

  Further, as shown in FIG. 3, a sole 14C in contact with the floor surface is arranged below the base material 14B, and an insole 14A is arranged above the base material 14B. The base material 14B, the sole 14C, and the insole 14A may not only have the same shape, but may be made of the same plastic material. However, the sole 14C may be formed of a material harder than the base material 14B, and the insole 14A may be formed of a softer material than the base material 14B.

  However, since the insole 14A receives the weight of the wearer, the insole 14A can be made relatively thick so as to have some elasticity, so that the comfort at the time of wearing can be enhanced. Therefore, polyurethane, foamed polyurethane, etc., among the plastic materials may be adopted. Further, the sole 14C that contacts the floor surface may be formed of polyurethane or rubber. As described above, the foot body 14 is composed of the three types of members, that is, the base material 14B, the sole 14C, and the insole 14A, all of which have flexibility.

  Further, the thumb holding portion 22 on which the big toe AT shown in FIG. 2 is placed is opposed to the end portion 18A on the base of the toe of the sole mounting portion 18 and is separated from the sole mounting portion 18. Are arranged as. However, as shown in FIGS. 3 and 4, the upper surface of the insole 14A of the foot main body 14 is integrally covered with a sheet-shaped cover material 20 by a stretchable and flexible elastic material. The upper surface of the foot rest portion 18 and the upper surface side of the thumb holding portion 22 are adhered to each other by covering the upper surface of the thumb holding portion 22 in such a manner that the portion 20 projects from the sole mounting portion 18. It is connected.

  That is, the cover material 20 formed of a stretchable elastic material is arranged on the side of the foot body 14 facing the wearer's sole, and the cover material 20 allows the sole mounting portion 18 and the thumb. It is conceivable that the holding member 22 and the holding member 22 are connected to each other, and a fiber-reinforced plastic material is adopted as the cover member 20.

  The fiber-reinforced plastic material is preferably composed of a material having excellent elasticity or toughness. For example, a carbon fiber reinforced plastic using an epoxy resin having an elastomer property using carbon fiber as a reinforcing material as a matrix resin, and a glass fiber reinforced plastic containing glass fiber as a reinforcing material are desirable.

  Then, as shown in FIG. 5, the end portion 18A of the sole mounting portion 18 on the base side of the toe is formed in a concave shape, and the thumb holding portion 22 that opposes the end portion 18A on the base side of the toe. The end portion 22A is formed in a convex shape corresponding to this. Therefore, in the open state shown in FIG. 5 (A), the convex end 22A is separated from the concave end 18A, but in the closed state shown in FIG. 5 (B), the convex end 22A is separated from the concave end 18A. The convex end portions 22A are engaged with each other, and the thumb holding portion 22 is prevented from further rotating downward. Along with this, in the present embodiment, the thumb holding portion 22 is configured to rotate only upward with respect to the base side of the toes of the foot rest portion 18.

  On the other hand, a toe BT other than the big toe AT shown in FIG. 2 is placed at a position facing the end portion 18A on the base side of the toe of the sole placing portion 18 and adjacent to the thumb holding portion 22. The other finger guide portion 24 is arranged as a separate body from the sole placement portion 18. However, as shown in FIG. 4, the above-mentioned cover material 20 covers the upper surface of the other finger guide portion 24 in a form of protruding from the sole mounting portion 18, and is adhered to each of the other finger guiding portions 24, so that the sole mounting portion. The upper surface side of 18 and the upper surface side of the other finger guide portion 24 are connected.

  The end portion 24A of the other finger guide portion 24 facing the end portion 18A of the bottom of the toe of the foot rest portion 18 formed in a concave shape is also formed in a correspondingly convex shape. Therefore, similarly to the above, in the open state shown in FIG. 5A, the convex end portion 24A is separated from the concave end portion 18A, but in the closed state shown in FIG. 5B, the concave end portion 24A. The convex end portion 24A meshes with 18A, and the other finger guide portion 24 is prevented from further rotating downward. Along with this, similarly to the above, the other finger guide portion 24 is adapted to rotate only upward with respect to the end portion 18A of the sole mounting portion 18 on the base side of the toes.

  However, a slit portion 20A which is a cut is formed in the portion of the cover material 20 between the thumb holding portion 22 and the other finger guide portion 24, and the thumb holding portion 22 and the other finger guide portion 24 are mutually It is designed to rotate freely. The thumb holding portion 22 and the other finger guiding portion 24 are also formed of the base material 14B, the sole 14C, and the insole 14A, like the sole mounting portion 18, and these are also formed of a hard plastic material. As a hard material for the thumb holding portion 22 and the other finger guide portion 24, a metal material such as aluminum alloy or steel may be adopted instead of the plastic material.

Next, the lower leg supporting portion 30 of the short leg orthosis 10 according to the present embodiment will be described.
As shown in FIGS. 1 and 2, the lower leg support portion 30 has a pair of metal support members 32 so as to extend to a position higher than the ankle site of the wearer. The lower ends of the pair of column members 32 are fastened to the upper ends of the pair of connecting members 16 by screwing. On the other hand, an elastic body such as a sponge is attached to the upper ends of the pair of column members 32, and a semicircular leg receiving portion 34 for receiving the thigh of the wearer connects the pair of column members 32. Located in shape.

  Further, the leg receiving portion 34 of the lower leg support portion 30 is provided with a wearing band 36 for fixing the short leg device 10 to the leg L of the wearer shown in FIG. Although the form is not particularly limited, for example, a band fixing portion 36A is provided at a portion of the wearing band 36 attached to one of the left and right of the opening portion of the leg receiving portion 34, and a band stopper 36B is provided at the other. As shown in FIG. 2, the mounting band 36 connects the both ends of the leg receiving portion 34. Since the wearing band 36 may come into direct contact with the wearer's skin, a cushioning material such as a felt material or a sponge may be attached to the inside of the wearing band 36 to mitigate the contact.

  Further, a hook-and-loop fastener 36D is attached to the inner portion of the mounting band 36 near the tip side. The surface fastener 36D is processed so that it can be attached to and detached from the base (mainly cloth). Usually, it is like bonding by combining a base with a loop and a base with a hook.

The operation and action of the short leg orthosis 10 according to the present embodiment having the above configuration will be described below.
First, the short leg orthosis 10 according to the present embodiment is applied to the leg L of the wearer, and both ends of the leg receiving portion 34 are connected by the wearing band 36 and the surface fastener 36D of the band stopper 36B is used as shown in FIG. The short leg brace 10 is fixed to the wearer's leg L. Along with this, the wearer can use the short leg orthoses 10.

  Then, according to the short leg orthosis 10 according to the present embodiment, the sole of the foot body 14 from the heel to the base of the toe is supported with respect to the lower leg support 30 extending to a position higher than the ankle site. The sole mounting portion 18 to be mounted is connected through a pair of connecting members 16, and the upper surface side of the thumb holding portion 22 on which the big toe AT is mounted is an elastic material having elasticity and flexibility. It is connected to the upper surface side of the end portion 18A of the sole mounting portion 18 on the base side of the toes via the cover member 20. Further, another finger guide portion 24 on which the toe BT other than the toe AT is placed is located at a position adjacent to the thumb holding portion 22 while being separated by the slit portion 20A. The upper surface side of is connected to the upper surface side of the end portion 18A of the sole mounting portion 18 on the base side of the toe of the foot via the cover material 20.

  That is, the upper surface side, which is the side facing the sole between the foot rest 18 and the thumb holder 22 and between the foot rest 18 and the other finger guide 24, is covered by the cover material 20. Each is connected. In addition to this, as shown in FIG. 5, the end portion 18A of the sole mounting portion 18 on the base side of the toes is formed in a concave shape, and the end portion 18A of the sole mounting portion 18 on the base side of the toes is The end portions 22A and 24A of the thumb holding portion 22 and the other finger guiding portion 24 which face each other are respectively formed in a convex shape corresponding thereto. Along with this, when the thumb holding portion 22 and the other finger guide portion 24 are in a flat closed state as shown in FIG. It will be securely fixed by engaging. As a result, the thumb holding portion 22 and the other finger guide portion 24 do not rotate further downward, but only rotate upward, and as a result, the wearer's toes bend in the plantar flexion direction. No longer.

  Therefore, in the present embodiment, the thumb holding portion 22 on which the toes are placed and the other finger guiding portion 24 are connected so as to rotate only upward with respect to the end portion 18A on the base side of the toes so that they are not connected to each other. The mechanism was designed to allow bending only in the bending direction. Further, since the thumb holding portion 22 on which the toe AT is placed and the other finger guide portion 24 on which the toe BT other than the toe AT is placed are separated, the toe AT and the toe thumb are separated. It is also possible to individually adjust the amount of bending of the toes BT other than AT in the dorsiflexion direction.

  In this way, not only is it possible to bend only in the direction of dorsiflexion, but also the big toe AT and the toes BT other than the big toe AT are separated and placed individually and the amount of bending can be adjusted. By doing so, it becomes possible to freely move only the thumb to which the center of gravity of the wearer's body is particularly added, and it becomes easy to step on or kick out with the thumb. As a result, the center of gravity of the sole can be moved by utilizing the original softness of the human foot, and it is possible to promote safer and more natural walking.

  As described above, in the short leg orthosis 10 according to the present embodiment, the toes are prevented from bending in the plantar flexion direction, and the big toe AT and the toes BT other than the big toe AT are separately placed. As a result, even a patient with strong paralysis, which is a symptom that exerts a force in the plantar flexion direction of the foot such as croats or clubfoot, can approach a natural walking style. This also leads to rehabilitation of the spasticity of the feet, which can reduce the period of reintegration into society.

  On the other hand, in the present embodiment, a plastic material is adopted as the material forming the sole rest portion 18 as a hard material, and a material forming the thumb holding portion 22 and the other finger guide portion 24 is a metal material or plastic. The material is adopted. Along with this, according to the present embodiment, a hard material is used for each member. Particularly, a plastic material is used for the sole rest portion 18, and a metal material or a material is used for the thumb holding portion 22 and the other finger guide portion 24. By using a plastic material, it is possible to increase the strength and hardness of each member while suppressing the weight.

  Further, in the present embodiment, the side of the sole that faces the sole between the foot rest 18 and the thumb holder 22 and between the foot rest 18 and the other finger guide 24 is elastic. They are connected by a cover material 20 made of a fiber reinforced plastic material which is a certain elastic material and contains fibers such as glass fibers and carbon fibers. Along with this, since the plastic is reinforced by containing fibers such as glass fiber and carbon fiber, the strength and hardness between the respective members are increased as compared with the case where ordinary plastic is adopted.

  Further, in the present embodiment, the end portion 18A of the sole mounting portion 18 on the base side of the toes is formed in a concave shape, and the thumb facing the base end portion 18A of the sole mounting portion 18 on the base of the toes. The end portions 22A and 24A of the holding portion 22 and the other finger guide portion 24 are formed in a convex shape corresponding to this, but conversely, the end portion 18A of the bottom of the foot resting portion 18 on the base side of the toe is formed in a convex shape. And the end portions 22A, 24A of the thumb holding portion 22 and the other finger guide portion 24, which face the end portion 18A of the sole mounting portion 18 on the base of the toes, are formed in a correspondingly concave shape. Is also good.

  In the present embodiment, the side of the sole that faces the sole between the sole rest 18 and the thumb holder 22 and between the sole rest 18 and the other finger guide 24 is the fiber reinforced plastic. Although they are connected by a sheet-like cover material 20 made of a material, the material need not necessarily be a fiber reinforced plastic material, but a material made of a single material that satisfies strength and flexibility, or a mixture or laminated of a plurality of members. It may be configured. That is, other optimum materials may be used from various viewpoints such as strength, durability, and manufacturing cost.

  On the other hand, the base material 14B of the foot body 14 and the sole mounting portion 18 are formed of a plastic material such as polypropylene, which is a relatively lightweight and hard material, but other thermosetting resin such as polyacetal or It may be formed of a thermoplastic resin. Further, although the metal material or the plastic material is used as the hard material forming the thumb holding portion 22 and the other finger guide portion 24, other material such as magnesium alloy having high strength and light weight may be used as the metal material, and polyphenylene is used as the plastic material. Other materials such as sulfide and phenol resin may be used. However, other materials may be used instead of the metal material or the plastic material. That is, similarly to the above, other optimum materials may be used from various viewpoints such as strength, durability, and manufacturing cost.

  On the other hand, in the above-described embodiment, the base end side of the toe of the foot rest 18 is formed in a concave shape, and the thumb holding part 22 and the other finger guide part facing the base side end of the toe. The end portions of 24 are correspondingly formed in a convex shape, but they may be flat end portions without forming these irregularities. Even in this case, the flat end portions come into contact with each other, so that the flat end portions do not rotate any more.

  Further, according to the short leg orthosis of the present invention, unnecessary fixation to the foot is reduced as compared with the existing lower leg orthosis, and thus the foot rehabilitation function is higher than that of the lower leg orthosis. As a result, the activity of the wearer is increased, which leads to prevention of future bedridden and bedridden conditions, which is consistent with the policy of the country aiming to reduce medical costs.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the present invention can be applied to a shoe-shaped orthosis or a plastic-type orthosis as a short leg orthosis, and the present invention can also be applied to a simple lower leg orthosis.

  INDUSTRIAL APPLICABILITY The present invention can be applied to various industrial fields in addition to an assisting tool that enables a patient who has difficulty walking due to hemiplegia to walk.

10 Short Lower Limb Orthosis 14 Foot Main Body 16 Connecting Member 18 Foot Placement Part 18A End 20 Cover Material 22 Thumb Holding Part 22A End 24 Other Finger Guide 24A End 30 Lower Leg Support 32 Strut Member 34 Leg Receiving 36 Wearing band AT Toe BT Toe

Claims (4)

A lower leg support that extends to a position higher than the ankle site,
Connected to this lower leg support part, the sole placement part on which the sole from the heel to the base of the toes is placed,
A thumb holding portion on which the big toe is placed, which is connected to the end portion of the sole placing portion on the base side of the toes so as to rotate only upward.
The toes other than the big toe are placed so that they are separated from the thumb holding part and are adjacent to each other, and are connected to the end of the foot rest part on the base side of the toes so as to rotate only upward. Another finger guide,
Ankle brace with.   The short leg orthosis according to claim 1, wherein the sole placing portion, the thumb holding portion, and the other finger guiding portion are formed of a hard material that does not bend when the sole is placed.   The side of the sole resting portion and the thumb holding portion and the side of the sole resting portion and the other finger guide portion facing the sole of the foot are connected by a stretchable and flexible elastic material. The short leg orthosis according to claim 1 or 2. Form the end of the sole mounting part on the base side of the toe in a concave or convex shape,
The part of the thumb holding part and the other finger guide part facing the base end side of the toe of the foot rest part is formed in a convex shape or a concave shape corresponding to this. Short leg brace.

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