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US 5,665,121 AGranted
Preformed mantle
AssigneeHowmedica International Inc.
InventorsGraham A. Gie, Peter Lawes, Lars Linder, Robin S. M. Ling, Tom J. Slooff
Life of this patent
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Abstract
A prosthesis having attachment portion for insertion into or attachment to a patient's bone without bone cement. Parts of the attachment portion on the prosthesis are attached to the bone are covered with a mantle of synthetic resin material and which has a roughened outer surface with bone fragments or calcium phosphate fragments embedded therein.
Claims5
A method of attaching a prosthesis in a bone canal comprising:
- placing the prosthesis within a separate preformed polymethylmethacrylate sheath having a smooth inner and a roughened outer surface, said sheath having an open proximal end and a closed distal end and said inner surface permitting sliding movement of said prosthesis therein, and said sheath having a distal void to permit distal movement of said prosthesis therein;
- preparing the surface of the bone to which the prosthesis is to be attached;
- providing a layer of bone fragments on said surface of said bone;
- and thereafter
- inserting said prosthesis and sheath so that the roughened surface of the sheath closely engages said bone fragments on said surface of said bone.
2 more elements
Dependencies are inferred from the claim text.