Tool for use in anchoring implantable prosthesis and method
First Claim
1. In a method for preparing a femur for the receipt of an implantable prosthesis comprising clearing the medullary canal of marrow, inserting a cutting tool having a rotatable cutter thereon interiorly of said canal, rotating said cutter and moving said tool laterally in said canal into engagement with a confronting interior surface of the canal to cut a groove in said interior surface, withdrawing said tool from said canal and inserting surgical cement into said canal with a prosthesis, to implant said prosthesis in the cement in said canal, with said cement entering said groove for firmly anchoring said prosthesis in said canal upon hardening of said cement.
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Accused Products
Abstract
A cutting tool for preparing a femur for the receipt of an implantable prosthesis comprising a rotatable drive member adapted for removable coupling to a motor unit of a power assembly, with the tool being adapted to be received interiorly of the intramedullary canal of the femur and including a cylindrical-like cutter secured to the drive member for cutting into a confronting interior surface of the femur canal, together with shoulders on both sides of the cutter for limiting the depth of groove produced by the cutter upon rotation of the tool and movement of the cutter laterally into engagement with the canal surface. The canal is adapted to receive surgical cement in which the prosthesis is embedded, and with the cement entering the formed grooves in the interior surface of the canal for aiding in firmly anchoring the prosthesis in the canal upon hardening of the cement. A novel method for preparing the femur for the receipt of an implantable prosthesis by forming grooves therein is also disclosed.
159 Citations
9 Claims
- 1. In a method for preparing a femur for the receipt of an implantable prosthesis comprising clearing the medullary canal of marrow, inserting a cutting tool having a rotatable cutter thereon interiorly of said canal, rotating said cutter and moving said tool laterally in said canal into engagement with a confronting interior surface of the canal to cut a groove in said interior surface, withdrawing said tool from said canal and inserting surgical cement into said canal with a prosthesis, to implant said prosthesis in the cement in said canal, with said cement entering said groove for firmly anchoring said prosthesis in said canal upon hardening of said cement.
Specification