A motor drive system and linkage arrangement for a hand prosthesis, wherein the prosthesis has at least one finger member extending generally tangentially with respect to a worm gear wheel secured to the prosthesis and driven by a drive motor and a worm gear located longitudinally within the finger to...http://www.google.ca/patents/US5888246?utm_source=gb-gplus-sharePatent US5888246 - Motor drive system and linkage for hand prosthesis
