Lock ring for osteosynthesis device and osteosynthesis device including such ring
OwnerAlexandre Worcelinventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a locking ring (20) for a threaded holding pin (18) to be screwed into a part of a bone (14), said ring including a first portion (22) having an axial bore (24) for receiving said holding pin, the periphery of said first portion being threaded so as to interact with a holding plate (12), wherein said ring in characterized in that the same further comprises, as an extension to said first portion, a second portion (28), said second portion being deformable and thus capable of blocking said ring on said pin by deformation.
Claims20
A lock ring for a threaded fixing pin designed to be screwed into a bone piece, said ring comprising a first part having an axial bore to receive said fixing pin, and the periphery of said first part being threaded to engage with a fixing plate;
- and a deformable second part adjacent to the first part, wherein shearing the pin and the ring at the junction between the first part and the second part deforms the remaining part of the second part of the lock ring toward the pin in such a way as to lock the pin with respect to the lock ring by a crimping action.
Dependencies are inferred from the claim text.