TEST BENCH FOR MULTIFUNCTIONAL ACTIVE PROSTHESIS OF SHOULDER Russian patent published in 2020 - IPC A61F2/76 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to stands for adjustment and testing of multifunctional active prosthetic shoulder. Bench comprises a base, an electric motor, a reduction gear, an action mechanism with stepless control of working parameters and elements of prosthesis attachment. Base is made in the form of support post, on which basic bracket with imitator of fixed shoulder pad is fixed. On the base bracket there is an actuator of the horizontal movement of the leverage-simulator of the forearm. Output shaft of horizontal movement mechanism is connected to housing of actuator of vertical movement of lever-imitator of shoulder gash, one end of which is connected to output shaft of the latter, and second with housing of actuator of flexion-extension mechanism of prosthetic attachment lever. Output shaft of the flexion-extension mechanism is connected to the body of the actuator of withdrawal and attachment of the lever of fixation of the prosthesis, with the output shaft of which the lever of the fixation of the prosthesis is connected. In each actuating mechanism housing there is a self-braking double-acting overrunning clutch with a split disc, the cage of which is rigidly fixed in the casing. On one side the output shaft of the mechanism is fixedly connected to the cam of the coupling installed between its half-discs, and the lead of the coupling enveloping half-discs is rigidly connected to the output shaft of the motor-reducer, the flange of which is connected to the housing. Half-discs are mutually spring-loaded and pressed to cage. Output shaft of geared motor is kinematically by means of gear transmission is connected to rotor of output shaft angle sensor, and stator of sensor is connected to housing. On the support post there is a test bench control panel which provides operation of four channels of position control of actuators.

EFFECT: invention enables adjustment of electromechanical multifunctional prostheses by forming imitating control actions.

1 cl, 3 dwg