Prosthetic alignment device supplementally secured by a hoop str

Details Prosthetic alignment device supplementally secured by a hoop str Prosthetic alignment device supplementally secured by a hoop str

1990-01-18

1992-08-18

Green, Randall L.

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

Leg

Adjustable shank or thigh

623 27, 403362, A61F 262

Patent

active

051395240

ABSTRACT:
A prosthetic alignment device having a shank member, an alignment body, and setscrews to adjust the angular orientation of the shank member and secure the shank member in place relative to the alignment body. The alignment body has a body cavity into which the shank member is inserted, a concave bearing surface for engaging a spherical radius of curvature of the end of the shank member, and an annular opening for inserting the end of the shank member. Angulation of the shank member inside the body cavity causes the annular opening to elastically deform and exert a hoop stress on the shank member increasing the securing force therebetween.

REFERENCES:
patent: 3206235 (1965-09-01), Albinson et al.
patent: 3659294 (1972-05-01), Glabiszewski
patent: 3671978 (1972-06-01), May
patent: 3982278 (1976-09-01), May
patent: 4161042 (1979-07-01), Cottingham et al.
patent: 4608054 (1986-08-01), Schroder
patent: 4969911 (1990-11-01), Greene
P. Kohler et al., "A new in-built device for one-point stepless prosthetic alignment," Prosthetics and Orthotics International 12:103-104, 1988.
Advertisement by Hosmer Dorrance Corporation, Journal of Prosthetics and Orthotics 1:20, Apr. 1989.
Advertisement by United States Manufacturing Company, American Orthotic and Prosthetic ALMANAC, Nov. 1989, p. 39.

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