Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arm or component and actuator or connector therefor – With article or article holder
Patent
1986-06-16
1987-05-19
Apley, Richard J.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arm or component and actuator or connector therefor
With article or article holder
D 7105, 294 25, A61F 268, D 7, D 8, 128, 128, 128, 128, 128, 128, D24, D24
Patent
active
046664513
ABSTRACT:
The instant invention refers to a clamp to be used by persons whose hand has been amputated and use hand protheses actuating fingers by means of electrical or mechanical command mechanisms. Since in most cases these elements do not permit grasping or seizing a great variety of sizes and shapes of objects, this clamp constitutes an auxiliary element widening the range of possibilities of said hand protheses.
The clamp is a tool comprising two substantially equal arms, mutually articulated at an end, the opposite ends being equal and symmetrical, shaped to grasp objects, including at their intermediate regions solidary rings to introduce the thumb, the forefinger and the middle finger corresponding to the prothesis, the central opening of said rings having cylindrical configuration and rounded edges, there being one ring for one arm and two adjacent rings for the other having different orientation therebetween; the planes of the ring openings of the second arm and plane of the ring opening of the first arm defining corresponding dihedral angles smaller than 180.degree., each arm defining a third class lever, the resistance end of which is constituted by the free end of said arms.
REFERENCES:
patent: D101791 (1936-11-01), Rach
patent: D148919 (1948-03-01), Duncan
patent: D189488 (1960-12-01), Page
patent: D239910 (1976-05-01), Megna
patent: 277531 (1883-05-01), Aclserman
patent: 2184909 (1939-12-01), Crompton
patent: 3648701 (1972-03-01), Botts
patent: 4120302 (1978-10-01), Ziegler
patent: 4261608 (1981-04-01), Bradshaw
Apley Richard J.
Prizant James
Wells Gilbert L.
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