Prosthetic locking device with integral pyramid

Details Prosthetic locking device with integral pyramid Prosthetic locking device with integral pyramid

1994-09-21

1996-04-16

Willse, David H.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Leg

Adjustable shank or thigh

623 33, 264274, A61F 262, A61F 280

Patent

active

055078370

ABSTRACT:
A light-in-weight locking device laminated within a hard prosthesis socket includes a plastic base molded in gripping relation to a metallic pyramid so that the locking device is a one piece, integrally formed unit. A flange of the pyramid is embedded within the base to prevent separation of the base and pyramid. One or more recesses are formed in a central part of the pyramid and plastic positioned in those recesses prevents relative rotation between the base and the pyramid. Circumferentially extending cavities formed in the base receive parts of the prosthesis socket to prevent relative rotation between the base and the socket. The unit has a truncate longitudinal extent so that it easily fits within the socket.

REFERENCES:
patent: 1576874 (1926-03-01), Stevens
patent: 2972655 (1961-02-01), Strauss
patent: 3659294 (1972-05-01), Glabiszewski
patent: 4608054 (1986-08-01), Schroder
patent: 5158570 (1992-10-01), Schey et al.
patent: 5163965 (1992-11-01), Rasmusson et al.
patent: 5201774 (1993-04-01), Greene
patent: 5226918 (1993-07-01), Silagy et al.
patent: 5376129 (1994-12-01), Faulkner et al.

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