JP6912782B2 - Lower limb orthosis parts and lower limb orthosis footwear - Google Patents

Description

The present invention relates to a lower limb orthosis component used together with footwear such as shoes and attached to a lower limb, and a lower limb orthosis footwear.

It becomes difficult for people with spastic paralysis associated with brain damage to move their ankle joints (ankle joints) freely at their own will. For patients with such injuries, lower limb orthoses are commonly used as assistive devices for walking. These lower limb orthoses are orthoses for patients with severe disabilities, long leg orthoses extending from the thigh to the sole of the foot, and orthoses for patients with minor injuries. There is an ankle foot orthosis that extends from to the sole of the foot.

Patent Document 1 discloses a lower limb orthosis component and a lower limb orthosis shoe that constitute such a lower limb orthosis. The lower limb orthosis component includes a support member integrally formed of a plate-shaped elastic body. The support member extends in the front-rear direction and is detachably inserted into a recess that opens on the rear side of the shoe outsole, and the outsole is connected to the insertion portion and is inserted into the recess. It has a bent portion that is located outside the above and bends upward, and an upright portion that is connected to the bent portion and extends upward. The above-mentioned parts are provided with a belt that is connected to the upright portion and holds the lower leg portion in the upright portion.

Japanese Patent No. 6307728

By the way, in the technique described in Patent Document 1, since the insertion portion of the support member is inserted into the recess opened on the rear side surface of the outsole of the shoe, there is a clearance between the bent portion of the support member and the floor surface. It tends to get smaller. Therefore, when the user uses the lower limb orthosis composed of the lower limb orthosis parts and the lower limb orthosis shoes, the bent portion may hit the stairs or the like, which may interfere with walking or the support member may be worn. There is. Further, in the case of shoes with low rigidity of the outsole, the outsole may be bent and the toes may be lowered even if the user tries to raise the toes. Therefore, there is also a problem that applicable shoe specifications are limited. Therefore, there is room for improvement in terms of usability.

An object of the present invention is to provide a lower limb orthosis component and a lower limb orthosis footwear that can improve usability.

The lower limb orthosis part for achieving the above object is a lower limb orthosis part that is used together with the footwear and is attached to the lower limb, and is composed of an insole constituting the insole of the footwear and a plate-shaped elastic body. An integrally formed member, a mounting portion that is detachably mounted on the insole, a bending portion that is connected to the mounting portion, penetrates the footwear, is located outside the footwear, and bends upward. , And a support member having an upright portion that is continuous with the bent portion and extends upward.

According to such a configuration, since the support member is integrally formed by a plate-shaped elastic body and is detachable from the insole, the support member is removed from the footwear and the support member is attached to other footwear. Can be easily done. Therefore, the footwear can be easily replaced.

Further, according to the above configuration, since it is possible to form a through hole in the upper of footwear such as general shoes for healthy people, it is possible to reduce the size and weight of the footwear. Therefore, the burden during walking can be reduced.

In addition, the ankle foot orthosis parts can be attached to or removed from the footwear depending on the degree of injury of the user. Therefore, it is possible to change the usage of the ankle foot orthosis according to the degree of injury of the user, such as rehabilitation that does not rely too much on the ankle foot orthosis.

In particular, according to the above configuration, since the mounting portion of the support member is mounted on the insole, the support member is bent as compared with the case where the mounting portion is mounted on the bottom body of footwear such as an outsole or a midsole. The clearance between the part and the floor surface is increased. Thereby, when the user uses the lower limb orthosis, the interference between the support member and the floor surface can be suppressed. In addition, since the user's force effectively acts on the sole of the foot via the support member, it becomes easier to control the foot. Therefore, usability can be improved.

In the lower limb orthosis component, the insole is preferably detachable from the bottom body of the footwear.
According to this configuration, the insole can be diverted between a plurality of footwear together with the support member.

In the lower limb orthosis component, the insole preferably has an insertion port into which the mounting portion is inserted.
According to the same configuration, the mounting portion can be easily mounted on the insole by a simple method such as inserting the mounting portion of the support member into the insertion port of the insole.

In the lower limb orthosis component, the insole is preferably made of fiber reinforced plastic.
According to this configuration, the strength of the insole is increased, so that the force of the user acts more effectively on a wide range of the sole of the foot via the support member. This makes it easier to control the foot. In addition, the durability of the insole can be increased.

In the lower limb orthosis component, the portion of the insole to which the mounting portion is mounted is formed of a fiber reinforced plastic containing continuous fibers.
A large load from the mounting part acts on the part of the insole where the mounting part is mounted as compared with other parts. According to the above configuration, the strength of the above portion is further increased, so that the durability of the insole can be further increased.

Further, according to the above configuration, since the strength of the above portion is increased, the mounting portion can be stably mounted on the insole while reducing the depth of the insertion port. Therefore, it is possible to suppress the increase in the physique of the insole. Therefore, usability can be further improved.

Further, the footwear for the lower limb orthosis for solving the above-mentioned problems is a footwear that constitutes the lower limb orthosis together with the parts for the lower limb orthosis when the parts for the lower limb orthosis are attached, and penetrates through the support member. Has holes.

According to the same configuration, it is possible to obtain an effect similar to each of the above-mentioned effects.

According to the present invention, usability can be improved.

An exploded perspective view showing an insole, a support member, and a shoe constituting the ankle foot orthosis part separated from each other for one embodiment of the lower limb orthosis part and the lower limb orthosis footwear. The perspective view which shows the lower limb with the ankle foot orthosis of the same embodiment attached diagonally from the rear. Regarding the support member of the same embodiment, (a) is a rear view, (b) is a side view, and (c) is a perspective view. The perspective view which shows the insole of the same embodiment diagonally from the rear. Regarding the insole of the same embodiment, (a) is a plan view, (b) is a side view, and (c) is a rear view. Partial sectional view of the ankle foot orthosis of the same embodiment.

Hereinafter, one embodiment will be described with reference to FIGS. 1 to 6. Hereinafter, the toe 63 side and the heel 64 side of the foot 62 will be described as the anterior side and the posterior side, respectively.
As shown in FIGS. 1 and 2, the ankle foot orthosis 10 of the present embodiment includes a shoe 20 as footwear and an ankle foot orthosis component 30 used together with the shoe 20 and attached to the lower leg. There is.

The shoe 20 is a commercially available one for a healthy person, and has a sole body 21 and an upper 23. The sole body 21 is provided with an outsole 22 formed of synthetic rubber or the like.

The ankle foot orthosis component 30 includes an insole 31 forming the insole of the shoe 20 and a support member 40 integrally formed by a plate-shaped elastic body.
As shown in FIGS. 2 and 4 to 6, the insole 31 of the present embodiment includes the rear portion 32 of the foot 62 corresponding to the heel 64 and the portion anterior to the heel 64, specifically, the base of the toes. It has a front portion 33 corresponding to a portion. The insole 31 is removable from the sole body 21 of the shoe 20. The insole 31 is preferably a so-called made-to-order product that measures the three-dimensional shape of the sole of the user's foot and has an upper surface formed along the three-dimensional shape based on the measurement result.

As shown in FIGS. 5 (b) and 5 (c), the rear portion 32 has an insertion port 34 that opens to the rear surface of the rear portion 32. The insertion port 34 extends along both the front-rear direction and the width direction.
The insole 31 is made of lightweight and strong fiber reinforced plastic (FRP). As the matrix resin constituting this fiber reinforced plastic, a thermoplastic resin such as PA66 is preferable. Further, as the reinforcing fiber, carbon fiber having high specific strength and specific rigidity is preferable.

The insole 31 of the present embodiment is made of carbon fiber reinforced plastic (CFRP, reinforced fiber is carbon fiber, matrix resin is thermoplastic resin).
The rear portion 32 of the insole 31 contains a large amount of continuous carbon fiber as a reinforcing fiber. On the other hand, the front portion 33 contains short carbon fiber fibers as reinforcing fibers, and does not contain continuous carbon fiber fibers.

As shown in FIGS. 5A and 6, the rear portion 32 is formed with a connecting hole 32a that penetrates the insole 31 in the vertical direction and communicates with the insertion port 34.
The support member 40 of the present embodiment is made of a lightweight and high-strength fiber reinforced plastic (FRP). As the matrix resin constituting this fiber reinforced plastic, a thermoplastic resin such as PA66 is preferable. When a thermoplastic resin is used, the angle of the bent portion 42 can be adjusted by heating the bent portion 42 of the support member 40 and pressing it against the mold. Further, as the reinforcing fiber, carbon fiber having high specific strength and specific rigidity is preferable.

The support member 40 of the present embodiment is formed of a carbon fiber reinforced plastic (CFRP, the reinforced fiber is a continuous woven carbon fiber, and the matrix resin is a thermoplastic resin) having a certain thickness (for example, 3 mm).

As shown in FIGS. 1 to 3, the support member 40 extends in the front-rear direction and is connected to the mounting portion 41 and the mounting portion 41 which are detachably mounted on the insertion port 34 of the insole 31, and the shoe 20 (upper 23). ), Which is located outside the shoe 20, has a bent portion 42 that bends upward, and an upright portion 43 that connects to the bent portion 42 and extends upward.

As shown in FIGS. 3A to 3C, the entire support member 40 has a thin and flat cross-sectional shape.
As shown in FIGS. 3C and 6, the mounting portion 41 is formed with a connecting hole 41a that penetrates the support member 40 in the vertical direction. The diameter of the connecting hole 41a is the same as the diameter of the connecting hole 32a.

Since the mounting portion 41 has a thin and flat cross-sectional shape, it is easy to insert the mounting portion 41 into the insertion port 34 of the insole 31.
As shown in FIGS. 3B and 6, the upright portion 43 has a portion that is inclined and extends so as to be located on the front side toward the upper side, and a portion that is continuous with the portion and extends upward. Have.

As shown in FIGS. 1 to 3, an annular holding member 44 that curves along the shape of the calf 65 and holds the lower leg portion is connected to the standing portion 43 at the upper end portion.
As the material of the holding member 44, a flexible cloth, leather, thin plastic, or the like is preferable.

As shown in FIGS. 1 and 2, a through hole 24 through which the support member 40 penetrates is opened on the rear surface of the upper 23. The through hole 24 has a horizontally long rectangular shape that is the same as the cross-sectional shape of the support member 40.

As shown in FIG. 6, the connecting hole 32a and the connecting hole 41a communicate with each other in a state where the mounting portion 41 is inserted all the way into the insertion port 34 of the insole 31. By inserting the connecting pin 50 from above over both the connecting hole 32a and the connecting hole 41a, the support member 40 is connected to the insole 31.

Next, the operation of this embodiment will be described.
As shown in FIG. 2, when using the ankle foot orthosis 10 composed of the ankle foot orthosis component 30 and the shoe 20, the user wears the shoe 20 to which the insole 31 and the support member 40 are attached, and the holding member 44. Holds the lower leg portion in the upright portion 43 by tightening. At this time, the mounting portion 41 of the support member 40 is mounted on the insertion port 34 of the insole 31, and the standing portion 43 is located from the rear side of the shoe 20 to the rear side of the calf 65. Therefore, the movement of the ankle joint 61, which makes walking difficult, is controlled by supporting the shoe 20 and the calf 65 via the support member 40.

Next, the effect of this embodiment will be described.
(1) The ankle foot orthosis part 30 is used together with the shoe 20 and is attached to the lower leg, and is integrally formed with the insole 31 constituting the insole of the shoe 20 and a plate-shaped elastic body. It is provided with a support member 40. The support member 40 is connected to the mounting portion 41 that is detachably mounted on the insole 31, the bending portion 42 that penetrates the shoe 20 and is located outside the shoe 20, and bends upward. It has an upright portion 43 that is continuous with the portion 42 and extends upward.

According to such a configuration, since the support member 40 is integrally formed by a plate-shaped elastic body and is detachable from the insole 31, the support member 40 is removed from the shoe 20 and the support member 40 is used by another. It can be easily attached to shoes. Therefore, the shoes 20 can be easily replaced.

Further, according to the above configuration, for example, since the through hole 24 can be formed in the upper 23 of a general shoe 20 for a healthy person and used, the shoe 20 can be made smaller and lighter. Therefore, the burden during walking can be reduced.

Further, the ankle foot orthosis component 30 can be attached to or removed from the shoe 20 depending on the degree of injury of the user. Therefore, the usage of the ankle foot orthosis 10 can be changed according to the degree of injury of the user, such as rehabilitation that does not rely too much on the ankle foot orthosis 10.

In particular, according to the above configuration, since the mounting portion 41 of the support member 40 is mounted on the insole 31, the mounting portion 41 is mounted on the sole body 21 such as the outsole or the midsole, as compared with the case where the mounting portion 41 is mounted on the sole body 21. The clearance between the bent portion 42 of the support member 40 and the floor surface is increased. As a result, when the user uses the ankle foot orthosis 10, it is possible to suppress the interference between the support member 40 and the floor surface, and it is possible to prevent the bent portion 42 from hitting the stairs or the like. Therefore, it is possible to suppress the occurrence of problems such as the support member 40 being worn out and being an obstacle to walking.

In addition, since the force of the user effectively acts on the sole of the foot via the support member 40, it becomes easier to control the foot.
Therefore, the usability of the ankle foot orthosis 10 can be improved.

(2) The insole 31 is removable from the sole body 21 of the shoe 20.
According to such a configuration, the insole 31 can be diverted between the plurality of shoes 20 together with the support member 40.

(3) The insole 31 has an insertion port 34 into which the mounting portion 41 is inserted.
According to such a configuration, the mounting portion 41 can be easily mounted on the insole 31 by a simple method such as inserting the mounting portion 41 of the support member 40 into the insertion port 34 of the insole 31.

(4) The insole 31 is formed of a fiber reinforced plastic containing carbon fibers as reinforcing fibers.
According to such a configuration, the strength of the insole 31 is increased, so that the force of the user acts more effectively on a wide range of the sole of the foot via the support member 40. This makes it easier to control the foot 62. In addition, the durability of the insole 31 can be increased.

(5) Of the insole 31, the rear portion 32 surrounding the insertion port 34 to which the mounting portion 41 is mounted is formed of fiber reinforced plastic containing continuous fibers as reinforcing fibers.
Of the insoles 31, the rear portion 32 surrounding the insertion port 34 on which the mounting portion 41 is mounted is subjected to a larger load from the mounting portion 41 than the front portion 33. According to the above configuration, the strength of the rear portion 32 is further increased, so that the durability of the insole 31 can be further increased.

Further, according to the above configuration, since the strength of the rear portion 32 is increased, the mounting portion 41 can be stably mounted on the insole 31 while reducing the depth of the insertion port 34. Therefore, the increase in the physique of the insole 31 can be suppressed. Therefore, the usability can be further improved.

(6) The support member 40 is connected to the insole 31 by inserting the connecting pin 50 through both the connecting hole 32a that opens on the upper surface of the insole 31 and the connecting hole 41a that penetrates the mounting portion 41.

According to such a configuration, it is possible to prevent the support member 40 from coming out from the insertion port 34.
(7) A through hole 24 through which the support member 40 penetrates is opened on the rear surface of the upper 23. The through hole 24 has the same cross-sectional shape as the support member 40.

According to such a configuration, the opening area of the through hole 24 can be small. Therefore, the through hole 24 can be easily machined.
<Change example>
This embodiment can be modified and implemented as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

When the support member 40 is removed and only the shoes 20 are used, a spacer having the same shape as the mounting portion 41 is used to prevent foreign matter such as water or dust from entering the insertion port 34 of the insole 31 (not shown). (Omitted) is preferably inserted into the insertion port 34 from the rear through the through hole 24 of the upper 23.

-The reinforced fibers of the fiber reinforced plastic forming the support member 40 can be changed to glass fibers, aramid fibers, or the like. Further, the matrix resin constituting the fiber reinforced plastic can be changed to a thermosetting resin.

The support member 40 may be integrally formed of a plate-shaped elastic body, and may be formed of a material other than plastic or reinforced fiber plastic such as aluminum, spring steel, and titanium.

-The entire insole 31 may be formed of a fiber reinforced plastic containing continuous carbon fiber as a reinforcing fiber. Further, the entire insole 31 may be formed of a fiber reinforced plastic containing only short carbon fiber fibers.

-The reinforced fibers of the fiber reinforced plastic forming the insole 31 can be changed to glass fibers, aramid fibers, or the like. Further, the matrix resin constituting the fiber reinforced plastic can be changed to a thermosetting resin.

-The insole 31 is not limited to that made of fiber reinforced plastic.
-The front portion 33 of the insole 31 may have a portion corresponding to the toes.
If the mounting portion 41 does not come out from the insertion port 34, the connecting pin 50 and the connecting holes 32a and 41a can be omitted.

The opening position of the insertion port 34 of the insole 31 can be changed to the inner surface of the rear portion 32, and the opening position of the through hole 24 can be changed to the inner surface of the upper 23. In this case, the portion of the foot 62 that is closer to the toe 63 can be supported. Further, since the support member 40 is difficult to see from the rear, the appearance is improved. Further, the insertion port 34 may be provided on both the rear surface and the inner surface surface.

-The insole 31 is not limited to the one having the insertion port 34. In short, it suffices to have a portion to which the mounting portion of the support member 40 is mounted.
-The insole 31 does not have to be detachable from the sole body 21, and may be fixed to the sole body 21.

-The footwear according to the present invention is not limited to shoes, but can be applied to other footwear including slippers, sandals, clogs and the like.
-The present invention can also be applied to a long leg orthosis.

10 ... Ankle foot orthosis 20 ... Shoes (footwear)
21 ... Sole body (sole body)
22 ... Outsole 23 ... Upper 24 ... Through hole 30 ... Ankle foot orthosis parts 31 ... Insole 32 ... Rear,
32a ... Connecting hole 33 ... Front part 34 ... Insertion port 40 ... Support member 41 ... Mounting part 41a ... Connecting hole 42 ... Bending part 43 ... Standing part 44 ... Holding member 50 ... Connecting pin 61 ... Ankle joint 62 ... Foot 63 ... Toe 64 ... heel 65 ... calf

Claims (6)

A part for lower limb orthosis that is used with footwear and attached to the lower limbs.
The insoles that make up the insoles of the footwear
A member integrally formed of a plate-shaped elastic body, which is attached to the insole in a detachable manner, is connected to the mounting portion, penetrates the footwear, is located outside the footwear, and is located on the upper side. A support member having a bent portion that bends toward the bent portion and an upright portion that is connected to the bent portion and extends upward.
Parts for lower limb orthoses. The insole is removable from the bottom body of the footwear.
The lower limb orthosis component according to claim 1. The insole has an insertion slot into which the mounting portion is inserted.
The lower limb orthosis component according to claim 1 or 2. The insole is made of fiber reinforced plastic.
The lower limb orthosis component according to any one of claims 1 to 3. The portion of the insole to which the mounting portion is mounted is formed of a fiber reinforced plastic containing continuous fibers as reinforcing fibers.
The lower limb orthosis component according to claim 4. A footwear that constitutes the lower limb orthosis together with the lower limb orthosis by mounting the lower limb orthosis component according to any one of claims 1 to 5.
It has a through hole through which the support member penetrates.
Footwear for lower limb orthoses.

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