The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 20, 1995
Filed:
Jan. 14, 1994
Paul Allard, Pierrefonds, CA;
Jean Dansereau, Sainte-Therese, CA;
Francois Trudeau, Montreal, CA;
Mathieu Lussier, Fabreville, CA;
Universite de Montreal, Montreal, CA;
Abstract
An exoskeletal (or endoskeletal) ankle connector for use in fixedly securing a prosthetic foot to a prosthetic leg. The foot has an elongated cantilever spring type keel. The keel defines an elongated forefoot part, an ankle part and a heel part merging the ankle part with the forefoot part. The keel ankle part is provided with a cavity. The leg has a bottom end with an integral bolt with the bolt having a free projecting threaded stem. The ankle connector consists of a casing sized to conformingly engage into and snugly fit within the keel cavity; the casing is releasably anchored by bolts to the keel inside the keel cavity; an annular gear screw assembly within the casing is engaged threadingly by the leg bolt stem to progressively draw toward one another the casing and the leg bottom end along the bolt stem upon inducing rotation of the foot relative to the leg; and an endless screw meshes tangentially with the gear of the screw assembly to anchor the foot at a selected angular orientation relative to the leg upon the foot remaining rotationless relative to the leg. Operative access to the endless screw is enabled without there being required the piercing of an access bore neither through the heel part nor through the forefoot part.