Towards A Universal Coupler Design For Modern Powered Prostheses

Abstract

Universal coupler standards have played a critical role in allowing prosthetists to choose the best terminal device for their patient’s particular needs. The conventional quick-disconnect coupler allows users to passively rotate their prosthesis or to use a weak motorized rotator. However, the current standard precludes use of the strong motorized wrist rotators introduced by several companies and universities, as these devices would decouple the current universal coupler. A new universal coupler standard is required to allow interchangeability of these new devices. An open source universal coupler standard that meets necessary design requirements would better serve prosthesis users.