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:
May. 15, 2001
Filed:
May. 04, 1998
Bruno Balay, Saint Bernard, FR;
Jean Claude Cartillier, Lyons, FR;
Claude Charlet, Saint Didier au Mont d'Or, FR;
Alain Machenaud, Cran Gevrier, FR;
Jean Marc Semay, Saint Priest en Jarest, FR;
Louis Setiey, Gleize, FR;
Jean Pierre Vidalain, Annecy le Vieux, FR;
Other;
Abstract
The cotyloidal implant has a hemispherical cup (,) forming an internal cavity (,), and an insert (,) engageable into the cavity, the cup being set in place by impaction and having to this effect anchoring asperities (,) provided on its external face, having the form of lozenges and which are contiguous and imbricated. The cup (,) is provided, on its external face, with two coaxial grooves configured like helical threads (,) having reverse pitches which intersect each other on a large portion of said external face, which are inclined in the direction of the cup opening and which have a depth increasing progressively in the opening direction of the cup (,); due to their intersection, the grooves delimit an important number of asperities (,). The invention provides for the making of a cotyloidal implant which can be anchored to the pelvis without the use of cement and screws.