SU1664308A1 - Control unit upper limb prosthesis - Google Patents

Abstract

The invention can be used in prosthetics of persons with disabilities with defects of the upper extremities. The purpose of the invention is to provide the possibility of prosthetics of persons with disabilities with shoulder amputation at the level of the middle third of the functional prosthesis. The upper limb prosthesis control unit contains a system of four relays, a contact sensor 5 consisting of a board 6 with four microswitches 7-10 fixed on it, four spring-loaded rods 11-14, crosses 15 with a rod 16, a limiter 17 and a finger 18. 4 silt

Description

The invention relates to medical technology and can be used in the appointment and manufacture of upper limb prostheses.

The aim of the invention is to provide the possibility of prosthetics of persons with disabilities with shoulder amputation at the level of the middle third of the functional prosthesis.

FIG. 1 shows a contact sensor, a front view in section and a top view; in fig. 2 - placement of the contact sensor in the prosthetic sleeve of the upper limb; in fig. 3 - contact sensor for two degrees of freedom; Fig. 4 is an electrical switching circuit for a contact sensor.

The upper limb prosthesis control unit contains a system of four relays: the first relay 1, the second relay 2, the third relay 3, the fourth relay 4, the contact sensor 5 consisting of the board 6 with the first microswitch 7 fixed on it, the second microswitch 8, the third microswitch 9 , the fourth microswitch 10, respectively, the first, second, third and fourth spring-loaded rods 11, 12, 13 and 14, crosses 15 with a rod 16, limiter 17 and finger 18.

The upper limb prosthesis control unit functions as follows.

For persons with disabilities with amputation of the shoulder at the level of the middle third, provided that the cult has mobility, a prosthesis can be performed with a functional prosthesis with the proposed control unit.

In a bilateral amputation, the control unit makes it possible for a disabled person to perform the following movements by the actuators of the artificial brushes of the upper limbs from one contact sensor 5: gripper, opening the right hand; gripper, opening the left hand; simultaneous seizure with two cysts; simultaneous disclosure of both hands; races

covering the right hand and simultaneously closing the left hand, and vice versa.

The control unit requires prior training (training) of the disabled person. The control unit works by lowering and carrying out the stump in the prosthetic sleeve. This is necessary so that there is no involuntary actuation of the control unit during the natural movement of a disabled person's stump in the prosthetic sleeve.

When touching the stump of the rod 16, which must have a certain direction relative to the four microswitches 7-10 placed on the board 6, must push the buttons of the first, second, third and fourth microswitches 7-10 by pressing the rods 11-14, ensuring the operation of the respective electric motors of actuators artificial brushes of upper limb prostheses (Fig. 4).

Claims (1)

Claims An upper limb prosthesis control unit comprising contact sensors in the form of microswitches for controlling the electric drive of an artificial hand, characterized in that, to ensure that people with arm amputation at the level of the middle third of the functional prosthesis are able to be replaced, the openings, a relay with a contact sensor, and additional microswitches with spring-loaded rods for interacting with their ends with a push buttons additional microswitches, and the other ends of reinforced slots in the pole cross, which is disposed inside the limiter with holes for the rods, with the restrictor axially coinciding with the axis crosses with the rod, the finger is mounted which cooperates with the bottom of the cross. Th / az