JPH0745209Y2 - Plantar orthosis - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plantar orthosis applied to improve toe closing (hammert) caused by diseases of the central nervous system such as cerebrovascular disorder.

[0002]

2. Description of the Related Art Stroke and central nervous system diseases result in a special position called the Man-Wernicke position. Upper limbs
It is fixed in a flexed position, the lower limbs are in the hip and knee joints in the extended position, the ankle joints are in the varus valgus position (the foot is drooping and it is impossible to lift it by itself), and the toes are shown in Fig. 6. Just like I did.

Various types of footwear are used for these symptoms. Of the currently known orthoses, the main ones are a shoe-shaped brace a made of hard plastic shown in FIG. 8 and a shoe-shaped orthosis b with a metal strut shown in FIG.
There is.

In the shoehorn brace, as shown in the figure, the toe d bent by the closing is supported by the sole e of the brace.

The shoe-shaped orthosis b with a metal strut is made of a soft plastic having a thickness of 3 to 5 mm in which the part corresponding to the fingertip is invaded in order to reduce the pain of the fingertip due to the cloning of the toes. Insert the sole plate (insole) of
The pain is dealt with by directly invading the part of the orthosis b that touches the fingertip and releasing the pressure.

[0006]

As described above, it is not possible with the conventional orthosis to extend the toes and fundamentally improve the cloaking, and at the same time, it is not natural to walk. There is a problem that is also a factor that hinders the movement of the toes (dorsiflexion).

The present invention has been made in view of the above problems of the prior art, and improves the toe cloning itself by using it together with the conventional foot orthosis or the like. An object of the present invention is to provide a plantar brace capable of removing pain in the fingertips and preventing flexion contracture of the toes.

[0008]

In order to achieve the above-mentioned object, a plantar orthosis of the present invention is a plate-like member formed of a material having appropriate elasticity and flexibility and having a size corresponding to the whole sole. Deformation on the upper surface of the front part of the body to a flatness of a required height which becomes a peak at the second basal part of the second phalanx, in a range from the fingertip to the part contacting the plantar surface of the first to fifth metatarsal bones. It is characterized in that it is provided with a raised portion that can be freely restored.

[0009]

The foot orthosis is also used as a foot plate for the conventional shoe horn braces and metal strut shoe-type orthosis. When the patient wears the orthosis with the second medial phalange base of the toe placed on the raised portion and walks, the raised portion on the front upper surface of the plate-shaped body is compressed by the load from the bottom of the foot. It is elastically deformed to be flat.

At this time, the front portion of the plate-shaped main body is extended forward, and along with this movement, the toes bent by the cloning are extended. Since the toes are extended at the moment of stepping back during walking, pain is not caused and dorsiflexion of the toes is smoothly performed, and it is possible to prevent a flexion contracture.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 5, the plate-shaped main body 1 is integrally formed of a material such as rubber or plastic having a proper elasticity and flexibility so that it can be elastically deformed and restored.

This plate-like body 1 is of a size that contacts the entire sole 2 as in the case of a conventional insole (not shown), and its thickness A is, for example, 2 mm as shown in FIG. It is set to about 4 mm.

As shown in FIG. 6, the upper surface of the front portion 1a of the plate-like body 1, that is, the portion where the fingertips 3a come into contact with the base of the toes 3, extends the bent toes 3 as shown in FIG. A ridge 4 is formed for the purpose.

The ridge 4 extends from the front of the finger tip 3a to the region rearward of the first to the fifth metatarsal bones in contact with the plantar surface 3b, and the basal part of the middle phalanx of the second finger. In order to make the portion in contact with 3c the apex 4a, the height H is up to 15 mm in a substantially elliptical cone shape, or a substantially sickle shape,
It is projected gently. Further, due to the above-mentioned material, it can be flatly deformed and can be restored.

In addition to the conventional shoe horn brace a and the shoe-shaped orthosis b with metal stanchions, the foot orthosis is a brace having a notched front end as shown in FIG. Also used as the sole plate of c. However, since the plate-shaped main body 1 is formed of a material having high elasticity and flexibility as described above, it has a small bending strength.
The plantar flexion of the front portion 1a, that is, the notch g in the front end portion of the brace c cannot prevent the toe 3 from hanging in the direction of the arrow B in the drawing.

Therefore, in such a case, as shown in FIGS. 1 and 2, the peripheral edge portion 1b is integrally provided upright on the plate-shaped main body 1 so that the plate-shaped main body 1 has a substantially tray shape (dish shape). ), The overall rigidity is increased and at the same time the sole 2
Increase the suitability of. Further, the rigidity of the whole may be increased by forming the outer peripheral edge of the plate-shaped main body 1 to be thick.

Furthermore, the shoehorn brace a described above.
When the strength of the entire sole of the foot is secured as in the case of the shoe-shaped orthosis b, the buckling of the front portion 1a of the plate-shaped main body 1 does not occur.
Therefore, since it is not necessary to increase the rigidity of the plate-shaped main body 1 as described above, the plate-shaped main body 1 is formed into a flat plate shape without vertically setting the peripheral edge portion 1b as shown in FIGS. 4 and 5. Since it can be molded and can be cut to an appropriate size according to a patient's foot, it can be made into a free size.

Further, the above-mentioned raised portion 4 is formed by the steps shown in FIGS.
In the embodiment shown in FIG. 4, it is provided on the upper surface of the front portion 1a of the plate-shaped main body 1 so as to project as a single unit in the width direction of the plate-shaped main body 1 (the direction perpendicular to the front-rear direction). It is also possible to provide the plate-shaped main body 1 as long as possible in the widthwise direction, and further, in the widthwise direction of the plate-shaped main body 1 so as to be in contact with the bases of the middle phalanx of each toe 3. It is also possible to arrange a plurality of bodies in parallel at a predetermined interval.

[0019]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, by using this as a sole plate together with a conventional orthosis, the weight is added to the sole of the foot during walking, so that the raised portion is It is compressed and deformed to a flat shape, as a result, the front part of the main body extends forward, and with this movement, the toes that are bent by the cloning are extended, and the extension of the toes is Since it is performed at the moment of stepping back on the foot, it does not cause pain in the toes and can assist walking. Further, since the dorsiflexion of the toes is performed smoothly, it is possible to prevent the toes from falling into flexion contracture.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a footwear according to the present invention.

FIG. 2 is a side view of the embodiment shown in FIG.

FIG. 3 is a cross-sectional view showing a state in which the raised portion of the embodiment shown in FIG. 1 is compressed and flattened, and the toes that are bent are dorsiflexed.

FIG. 4 is a plan view showing another embodiment of the footwear according to the present invention.

5 is a side view of the embodiment shown in FIG.

FIG. 6 is a side view showing a closing state of the toes.

FIG. 7 is a side view showing an example of a usage state.

FIG. 8 is a side view showing a conventional plantar brace.

FIG. 9 is a side view showing another example of the conventional plantar brace.

[Explanation of symbols]

 1 plate-shaped main body 1a front part of plate-shaped main body 2 sole 3 toe 3a finger tip 3b fifth foot surface of metatarsal head 5c second phalanx of metatarsal bone 4 ridge 4a vertex

Claims (1)

[Scope of utility model registration request] 1. A material having appropriate elasticity and flexibility,
On the upper surface of the front part of the plate-shaped main body formed in a size corresponding to the entire sole of the foot, in the range from the fingertip to the part in contact with the sole of the first to fifth metatarsal bones, the second middle phalanx A plantar orthosis characterized by having a ridge that can be freely deformed and restored to a flat shape having a required height at the base portion.