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US 5,179,915 AGranted
Anatomically matching intramedullary alignment rod
AssigneeOsteonics Corp.
InventorsRobert C. Cohen, Scott V. Cron
Life of this patent
Estimating the term…
Abstract
An intramedullary alignment rod for properly orienting and supporting a cutting guide or tool has a complex geometry which includes at least two differently sized sections, the smaller of which is at the proximal end of the rod. The complex geometry of the rod maximizes the rigidity of the rod while avoiding the trauma of an interference fit, and facilitates stabilization of the intramedullary rod in the medullary canal.
Claims14
A tool guide support rod for supporting a tool guide or a tool, said rod comprising:
- an elongate internal portion for insertion into the medullary canal of a bone, said internal portion being at least about eight (8) inches in length and having a distal end and a proximal end;
- said internal portion having at least two sections, each being of a different cross-sectional size, the smallest of said at least two sections being at said distal end and being approximately 0.25 inches in cross-sectional size and being provided along a minor portion of the length of said internal portion such that the smallest section normally avoids an interference fit with the medullary canal, and the larger of said at least two sections being sufficiently large so as to provide a rigid support for the tool guide or tools;
- and
- means for receiving a cutting tool guide or cutting tool, said means being at said proximal end of said internal portion.
1 more element
Dependencies are inferred from the claim text.