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US 7,261,716 B2Granted
Biodegradable interference screw and tool for attaching a transplant to a bone
AssigneeKarl Storz GmbH & Co. KG
InventorsMichael Strobel, Andreas Weiler, Andre Timmermans
Life of this patent
Estimating the term…
Abstract
A biodegradable interference screw for directly affixing a transplant to a bone, the interference screw being provided with at least one longitudinal groove designed to co-act with a tool for insertion of and if necessary, removal of the interference screw from an opening provided in the bone to receive both the transplant and the interference screw.
Claims20
An interference screw for anchoring a transplant to a bone comprising:
- a screw body made of a biodegradable material, said screw body including a head and a shaft and at least one axially extending groove substantially the length of said screw body and cut into an outer side of said screw body;
- said screw head having a recess located therein;
- a tool for inserting the screw into an opening in the bone, said tool including a drive element for insertion into said at least one axially extending groove;
- said tool having a protrusion corresponding to said recess in the screw head for centering said tool with respect to said screw body during insertion;
- said screw body adapted to contact the transplant positioned between said screw body and a side of the opening in the bone to anchor said transplant to said bone.
2 more elements
An interference screw for anchoring a transplant to a bone comprising:
- a screw body made of a biodegradable material, said screw body including a head and a shaft and at least three axially extending grooves;
- a tool for inserting the screw into an opening in the bone, said tool including at least three drive elements for insertion into said at least three axially extending grooves;
- said screw body adapted to contact the transplant positioned between said screw body and a side of the opening in the bone to anchor said transplant to said bone;
- said at least three axially extending grooves cut into an outer side of said screw body.
1 more element
Dependencies are inferred from the claim text.