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US 12,471,935 B2Granted
Self leveling patellar drill guide
AssigneeHowmedica Osteonics Corp.
InventorsPolina Canepa, Elena Doce, Stefano Bini
Life of this patent
Estimating the term…
Abstract
A patella drill guide includes a head having a convexly curved outer surface. Cylindrical channels extend through the head. The drill guide also includes collar having an inner surface that defines a concavity corresponding in shape to the convexly curved outer surface. The inner surface of the collar is fitted to the outer surface of the head to define an articular joint.
Claims19
A patellar drill guide, comprising:
- a head having an outer surface, the outer surface being convexly curved, and at least one channel extending through the head;
- and
- a collar having an inner surface being concavely curved and corresponding in shape to at least a portion of the outer surface of the head and being fitted to the head to define an articular joint therebetween,
- wherein the head comprises a bore and an insert, the insert defining the at least one channel and being removably received within the bore of the head.
1 more element
A method of preparing a patella for receiving a patellar implant, the method comprising:
- clamping the patella between a drill guide and a base, the drill guide including a bearing end and a collar forming a ball-and-socket joint so that the drill guide contacts the patella through the collar on a resected surface of the patella created by a resection of a first portion of the patella;
- and
- drilling holes in the patella through the drill guide.
A kit comprising:
- a patella drill guide including:
- a head having an outer surface, the outer surface being convexly curved, and at least one channel extending through the head;
- and
- a collar having an inner surface being concavely curved and corresponding in shape to at least a portion of the outer surface of the head and being fitted to the head to define an articular joint therebetween;
- and
- a cut guide including a planar guide surface and being removably connectable to the head at a position where the planar guide surface is normal to a central axis of the at least one channel.
3 more elements
Dependencies are inferred from the claim text.