Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arm or component and actuator or connector therefor – Arm or torso initiated finger actuation
Patent
1990-09-10
1992-01-14
Green, Randall L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arm or component and actuator or connector therefor
Arm or torso initiated finger actuation
294902, 901 21, A61F 254
Patent
active
050806815
ABSTRACT:
A mechanical hand comprising a housing with a first sliding actuation member and second sliding actuation member, at least two elongate, bendable members comprising a proximal phalanx and a distal phalanx, a relatively stationary member attached to the housing, a primary tension member projecting through the housing and at least through the second sliding actuation member, and a set of primary tendons and a set of secondary tendons. The primary tendons have first and second ends, with the primary tendon first end secured to the first slidable actuation member, and with the primary tendons extending through the bendable members. The primary tendon second end is secured to the distal phalanx. Each secondary tendon has first and second ends. The secondary tendon first end is secured to the second slidable actuation member. The secondary tendons extend through the bendable members. The secondary tendon second end is secured to the proximal phalanx. A method for having the mechanical hand of this invention exhibit a conformable grasp is also disclosed.
REFERENCES:
patent: 2497493 (1950-02-01), Edwards
patent: 2641769 (1953-06-01), Robinson
patent: 2696010 (1954-12-01), Robinson
patent: 3694021 (1962-09-01), Mullen
patent: 4466800 (1984-08-01), Breiden
patent: 4685929 (1987-08-01), Monestier
patent: 4770662 (1988-09-01), Giampapa
patent: 4834761 (1989-05-01), Walters
"Cosmetic Covers for Upper Extremity Prostheses", Rehabilitation R & D Progress Reports 1987, Veterans Administration, p. 37.
Calspan Corporation
Green Randall L.
Willse David H.
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