SU1049062A1 - Talocrural node of shin prosthesis - Google Patents

Abstract

BENE-FOOT KNOT OF THE PROTESIS OF THE TEE, containing the body of the foot, is hinged to the calf sleeve by means of a lever sistele, which, in order to bring the prosthesis towards the natural movements of the lower leg by pushing the rear jerk and shortening it when transferring the prosthesis, the lever is made as a two-armed rocker arm, located in the body of the foot, a three-hinged rigid link, a rack with a one-arm rocker, pivotally connected to it, a three-hinged connecting rod and a slider, with a two-sided rocker arm one shoulder is installed in the shin sleeve; the other is connected to one of the hinges of a three-hinged rigid link, which is connected, with one shoulder, two shoulder arms, and through a connecting rod to a three-hinged connecting rod: in turn, a three-hinged connecting rod (L with an arc-shaped connecting rod connected to a single-shoulder korokyslym on the shoulder of the two shoulders KopoMJcna installed in the sleeve from the shin ..

Description

NU

CD O yes tsD The invention relates to medicine, in particular to the melicine technique, lower limb prostheses. The ankle assembly in the lower limb prosthesis is known, which is connected to the leather receiving sleeve, which includes an artificial foot, rubber pads, earring, shock absorber, connecting rods l The lower limb prosthesis equipped with this ankle node does not carry out the back jerk of the required size to normalize walking and does not provide movement of the leg close to natural. The ankle knot, which connects the body of the foot with the prosthetic sleeve of the prosthesis with the aid of a lever system, which transfers the force of the muscles of the stump to the foot C2, is known. The prosthesis equipped with this ankle unit is not sufficiently close to the natural The in-vapid spends a lot of energy on the movement of the lower leg because of the involuntary temporary and insufficiently strong back thrust. The aim of the invention is to approximate the movement of the prosthesis to the natural movements of the lower leg by pushing and shortening the posterior prosthesis. Substituted goal is achieved in those in the ankle node of the prosthesis of the calf, which contains the body of the foot, the ball is connected to the shin sleeve: when using a lever system, the lever system is made in the form of a duplex of the rocker, located in the cortex of the foot, three-hinged rigid link, rack pivotally connected with it is one-arm Kor Iz1slom, a three-hinged connecting rod and a ram, etc. This two shoulders of the anvil is installed with one shoulder in the shin sleeve, the other is connected to one of the hinges of the three-hinged hard link, which is connected to the one-shoulder, two-hip rocker arms and through the connecting rod with the three-hinged. the connecting rod, in turn, the three-hinged connecting rod with the help of an arc-shaped connecting rod is connected with the one-arm KopoMJcnoM, and the papun is located on the shoulder of the two shoulders of the lower leg. In FIG. 1 shows a kinematic diagram of the mechanism of the ankle joint of the shank prosthesis during a roll; in fig. 2 - the same with the rear push. The mechanism of the ankle node of the prosthesis of the leg contains the body 1 foot, pivotally connected to the sleeve 2 of the leg through a lever system, made in the form of two shoulders rocker 3, located in the body 1 foot three-hinged rigid link 4, rack 5, pivotally connected to it with one shoulder arm Corom 6, three-hinged connecting rod 7 and a slider 8, with two shoulders 3 one shoulder mounted in the sleeve 2 shin, the other connected to one of the hinges of the three-hinged hard link 4, which is connected with one shoulder 6, two shoulders 3 korokodyla and black Without a connecting rod 9, a three-hinged connecting rod 7, in turn, a three-hinged connecting rod 7 is connected with a one-arm rocker b by means of an arc-shaped connecting rod 10, and a slider 8 is located on the shoulder of a two-arm rocker arm 3 installed in the sleeve 2 of the lower leg. The mechanism works as follows. The movement of the liner 2 of the tibia fixed rigidly with the slider 8 is transmitted to the shoulder of the two shoulders rocker arm 3, which enters the sleeve, which rotates relative to the stud 5, transmits the movement to the three-hinged rigid link 4 and the single shoulder rail 6, which rotates relative to the stud 5. From the single-arm rocker 6 through the arc-shaped connecting rod 10, from three; the hinge rigid link 4 through the connecting rod 9 movement is transmitted to the three. a hinge connecting rod 7, the total movement of which is transmitted to the hinge of the slider 8 moving along the shoulder of the two shoulders KopONbJcna 3 entering the shin sleeve 2, the proposed device normalizes walking of the disabled person on the shank prosthesis, which greatly increases the level of rehabilitation of the digs;

Claims (1)

The ankle unit of the shank prosthesis containing the body of the foot, - hingedly connected to the shin sleeve by means of a lever system, characterized in that> in order to approximate the movement of the prosthesis to the natural movements of the shin by performing a back push and shortening it when transferring the prosthesis, the lever system is made in -. de two-shouldered rocker arm, located ηο корпусе in the body of the foot, three-hinged rigid link, a rack with a single-arm yoke pivotally connected to it, a three-hinged connecting rod. and a slider, while the two-shoulder yoke with one shoulder is installed in the shaft of the shin and the other is connected to one of the three-hinge hinges , with a single-arm, two-arm rocker arm and through a connecting rod with a three-hinged connecting rod:: 'in turn, the three-hinged connecting rod with the help of an arc-shaped connecting rod is connected to the one-arm beam, and the slider is located on the shoulder an implant rocker mounted in the lower leg sleeve. .