Prosthetic terminal device

Details Prosthetic terminal device Prosthetic terminal device

1978-11-02

1980-10-07

Frinks, Ronald L.

3 127, A61F 106

Patent

active

042259835

ABSTRACT:
A voluntary closing prehensile prosthetic hand of laminated construction having a natural reaching and positive gripping action, innate biofeedback characteristics, and greater gripping strength and utility. The thumb member is a cable actuated, rotatable member, which is spring biased to return to the open position. An internal hook, three co-operating gripping surfaces, and two manual locking devices provide a variety of closed positions for holding different sized objects. The overall design, which imitates the action of the human forefingers and thumb, results in a refined gripping action while increasing reaching and grasping capabilities.

REFERENCES:
patent: 1284875 (1918-11-01), Caron
patent: 2364313 (1944-12-01), Pecorella
patent: 2415145 (1947-02-01), Mollenhour
patent: 2493841 (1950-01-01), Threewit
patent: 2631295 (1953-03-01), Becker

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