SU1424831A1 - Artificial foot - Google Patents

Abstract

The invention relates to protoconstruction. The purpose of the invention is to provide a separate adjustment of the degree of resistance during flexion and extension in the ankle joint selectively at any angle of flexion-extension. The artificial foot consists of a frame 1, an elastic shell 2, a swivel 3, ankle 4, a front shock absorber 5, a rear shock absorber 6, a central shock absorber 7, a front stop 8, a back stop 9, In the front 5 and a back 6 shock absorbers, slots 10 and 11 are made In the anvil pads 12 and 13 of the ankles, threaded holes 14 and 15 with screws 16 and 17 installed in them can be extended to a different level are filled. The device reduces power consumption when walking. 3 il. (ABOUT

Description

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The invention relates to the field of medical technology, namely, to proteostroenie, and can be applied in the manufacture of artificial feet.

The purpose of the invention is to provide a separate adjustment of the degree of resistance during flexion and extension in the ankle joint, selectively for any angle of flexion - extension.

I FIG. 1 shows a foot with under-rests (flexing and unbending resistance is minimal); in FIG. 2 — front stop is extended to j of the bottom of the shock absorber socket (maximum resistance 1); in fig. 3 - one-pa with raised stops when bent, I Stop of FIG. 1) consists of frame II, elastic shell 2, swivel 3, ankle 4, front shock absorber 5, rear shock absorber 6, central shock absorber 7, front shock 8 and rear 9 stops.

In the front 5 and rear 6 shock absorbers, the slots 10 and 11 are made, opposite the Kotor in the support sites} 12 and 13 of the ankle are threaded holes 14 and 15, with screws 16 and 17 installed in them with support heads with the possibility of extension to a different level

Depending on whether the shock absorber is compressed during bending-stretching; The scientific research institutes only with the ankle pad (the stop 8 is raised) or the ankle pad 1 plus the head of the stop (the stop 8 is extended) change the compression area and, consequently, the resistance.

The stop 8 can be pulled out immediately (Fig2), when the foot is in the neutral position (support phase) at the very beginning of flexion in the upper limb. The articulation, the shock absorber is compressed over the entire area, including the socket.

The stop 8 can be maximally raised in the neutral position (Fig. 1).

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then, when bent, it will not touch the bottom of the socket, while the shock absorber shrinks over the upper area, excluding the area of the socket (Fig. 3). The resistance to bending in the rolling phase is less.

The stop can be pulled in half the amount of adjustment. Then the resistance to bending will increase at the end of the roll-in phase.

Similarly, pushing the stop 9, we fix the resistance to extension in different phases of the step

Dampers can be made of resilient materials, such as rubber, polyurethane

The present invention allows for separate adjustment of flexion-extension resistance in different phases of a step depending on the individual data of the disabled person.

This will reduce energy costs when walking, reduce fatigue, improve the pattern of walking, and provide ease of walking on lower limb prostheses.

Claims (1)

Invention Formula An artificial foot containing an elastic membrane, in which the frame with the front and rear shock absorbers associated with the ankle and the central shock absorber are located, is characterized in that, in order to ensure separate adjustment of the degree of resistance to flexion and extension of the ankle joint, selectively at any angles of flexion, the front and rear shock absorbers are made from the socket at the top — opposite, in front of the corpses in the ankle grooves, there are threaded holes, with screws installed in them with support heads with vschvizheni on different levels. 12 ten Editor L. Gratshsho 1b 1i Fig. :) Compiled by A. Novikov Tehred M. / Didyk Proof-reader S. Cherni