Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Having electrical actuator
Patent
1992-06-12
1994-07-05
Green, Randall L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Having electrical actuator
623 64, 74 8915, 74479BP, A61F 254, A61F 270
Patent
active
053263693
ABSTRACT:
A motor actuated screw device for the transmission of torque over articulating surfaces finding particular use in prosthetic devices used as mechanical artificial hands. The device employs a high torque motor mounted on a support platform which is attached to a cable or universal joint having at least one externally threaded cincture affixed to the cable. The placement of at least one articulating member hingedly mounted to the support platform with an internally threaded guide bushing affixed to the articulating member allows the cincture to be placed therethrough allowing the motion to rotate the cable/cincture causing the articulating member to rotate about the hinge connection to the support base. The use of multiple members attached to the articulating member together with hinges placed therebetween, allows the use of the instant device to move all of the members according to predetermined threaded engagement providing each member with nearly a direct torque transfer from the motor.
REFERENCES:
patent: 2893016 (1959-07-01), Zion
patent: 3166632 (1965-01-01), Woodman
patent: 3877341 (1975-04-01), Grimm
patent: 4364593 (1982-12-01), Maeda
Green Randall L.
Willse D.
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