Device for the attachment of a glenoid prosthesis of the shoulder blade
First Claim
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1. A device for fastening a prosthesis against the hard layer of a bone, comprising:
- a metal foundation including a plate and at least one anchoring pin consisting of elastically deformable wings surrounding an internal bore, at least one screw extending through said at least one anchoring pin, a nut adjustable along said at least one screw to spread said wings into a position away from a longitudinal axis of said at least one anchoring pin, said at least one anchoring pin having a cylindrical base connecting said at least one anchoring pin to said plate, said at least one anchoring pin having a circular counter-bore adjacent said base and communicating with said internal bore and being of greater diameter than said internal bore, said counter-bore making it possible to spread said wings as said nut moves relative to said at least one screw while maintaining rigidity of said wings over their length.
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Abstract
A device for attaching a prosthesis including a metal foundation provided with a plate integrally formed with at least one anchoring pin consisting of elastically deformable wings and at least one the screw cooperating with a nut. The screw goes through the pin, to spread the wings into a position away from a longitudinal axis of the pin. The anchoring pin comprises an internal bore having a cylindrical base connecting the pin to the plate, and a circular counter-bore adjacent the bore of greater diameter than the internal bore of the pin, making it possible to spread the wings while maintaining their rigidity over their entire length.
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Citations
13 Claims
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1. A device for fastening a prosthesis against the hard layer of a bone, comprising:
- a metal foundation including a plate and at least one anchoring pin consisting of elastically deformable wings surrounding an internal bore, at least one screw extending through said at least one anchoring pin, a nut adjustable along said at least one screw to spread said wings into a position away from a longitudinal axis of said at least one anchoring pin, said at least one anchoring pin having a cylindrical base connecting said at least one anchoring pin to said plate, said at least one anchoring pin having a circular counter-bore adjacent said base and communicating with said internal bore and being of greater diameter than said internal bore, said counter-bore making it possible to spread said wings as said nut moves relative to said at least one screw while maintaining rigidity of said wings over their length.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
Specification