Conceptual Design of 3 Independent Motor Actuation Transmission Systems for Low-Cost Anthropomorphic Prosthetic Hand

Abstract

Abstract-This paper presents a transmission mechanism design for anthropomorphic prosthetic hand which enables it to do both power and precision grip. The fingers and thumb is pull type with 1 DOF and they must be adaptive towards object's contour. In the other hand, transmission system must be small enough to be placed in metacarpal. To solve any physical and technical contradiction problem, we used TRIZ methodology. The result is 3 independent motor actuation transmission systems, each for thumb, pointing finger, and the unity of middle-ring-little finger. Every independent system using bolt-nut as reducer and tension spring as adaptive component. This configuration enables the hand to do 5 of 6 basic models of human grasping.

Development of a fully flexure-based prosthetic hand

“…This literature search, updated to March 2018, intends to make an inventory of prosthetic hands developed in the last 20 years [1,4,18,20,22,31,33,37,39,[55][56][57][58][59][60][61][62][63][64][65][66][67][68][69]; a list is presented in Table B.1. A small number of robotic hands were also registered because of their compliant nature [2,3,5,17,19,70].…”