Elbow prosthesis

a technology for elbows and prostheses, applied in the field of elbow prostheses, can solve the problems of screw thread or tapping distortion, screw positioning skewed, and the inability to mount locking elements, and achieve the effect of adequate positioning of locking elements and efficient immobilization of locking elements
USRE42805E1Active Publication Date: 2011-10-04TORNIER SA SAINT ISMIER
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
TORNIER SA SAINT ISMIER
Publication Date
2011-10-04

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Abstract

A humeral component, forming a first articulating surface, and an ulnar component forming a second articulating surface adapted to be disposed around a part of the first articulating surface and to pivot about its longitudinal axis. This ulnar component is provided with structure for mounting a locking element which forms a third articulating surface extending the second and adapted likewise to be disposed around a part of the first surface. These mounting structure comprise guiding structures adapted to cooperate with complementary structure provided on the locking element in order to guide this element in translation with respect to the ulnar component, up to a position where blocking structure provided respectively on the locking element and on the ulnar component may be employed to immobilize this element on this component, these blocking structure being able to be employed only in this position.
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Description

[0001] This application claims the benefit of U.S. provisional application No. 60 / 473,446 filed May 28, 2003.FIELD OF THE INVENTION

[0002] The present invention relates to an elbow prosthesis comprising at least one humeral component and one ulnar component.

[0003] It concerns more particularly an elbow prosthesis of which the ulnar component is adapted to receive a locking element which forms an articulating surface extending that of the ulnar component, the articulating surfaces of the locking element and of the ulnar component being adapted to be arranged together around at least a part of another articulating surface belonging to a humeral component. A prosthesis of this type is known from EP-A-1 051 954.BACKGROUND OF THE INVENTION

[0004] In such a prosthesis, the locking element is maintained in position on the ulnar component thanks to a screw introduced in a through housing in this element and tightened in a tapping provided on the ulnar component. It has proved in practice that the...

Claims

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