Glenoid resurfacing system and method
AssigneeArthrosurface Incorporated
InventorsGeorge Sikora, Steven W. Ek
Life of this patent
Estimating the term…
Abstract
A system and method for repairing a defect on an articular surface. An excision guide is positioned on an articular surface, wherein the excision guide includes a guide head and a guide sleeve disposed on the guide head, wherein the guide head includes a contact surface configured to locate the excision guide relative to the articular surface. A guide pin may be advanced through the guide sleeve and secured to the articular surface, wherein the guide sleeve is configured to receive the guide pin therethrough and position the guide pin at an angle β relative to an axis generally normal and central to a defect on the articular surface, wherein angle β is less than 90 degrees.
Claims17
A system for repairing a defect on a portion of an articular surface of a patient's glenoid, said system comprising:
- a guide pin to be secured into said articular surface of said glenoid proximate to said defect:
- an excision device comprising:
- a cannulated shaft to be advanced over and rotated about said guide pin;
- and
- one or more cutters having a generally arcuate shape to form a generally hemi-spherical primary excision site in a portion of said glenoid articular surface having a diameter generally corresponding to a diameter of an implant, wherein all of said one or more cutters extend outward from said cannulated shaft and are generally aligned in a single plane extending along a longitudinal axis of said cannulated shaft;
- and
- a guide including:
- a guide arm;
- and
- a guide head including:
- an upper portion and a lower portion;
- and
- a passageway including at least one interior surface, said at least one interior surface extending through said guide head from said upper portion to said lower portion at an angle β less than 90 degrees relative to an axis generally normal and central to said guide head, wherein said at least one interior surface is to receive said guide pin and extends through said guide head such that an entry point of said guide pin into said glenoid articular surface is offset from said axis generally normal and central to said guide head and such that said excision device, when advanced over said guide pin, forms said generally hemispherical primary excision site having a center that is generally coaxial with a center of said guide head and said axis.
Dependencies are inferred from the claim text.