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US 2020/0046383 A1Published application
System for Articular Surface Replacement
AssigneeArthrosurface Incorporated
InventorSteven W. Ek
Life of this patent
Estimating the term…
Abstract
A system for replacing a portion of an articular surface including providing an implant site and installing an implant into the implant site. The implant site includes a first and a second excision site which at least partially intersect with one another. Each of the first and second excision sites are formed by providing a respective axis and excising a portion of the articular surface relative to the respective axes.
Claims20
A method of replacing a portion of an articular surface comprising:
- forming a first excision site relative to a first axis relative to said articular surface;
- forming a second excision site relative to a second axis relative to said articular surface, at least a portion of said second excision site intersecting at least a portion of said first excision site;
- and
- installing an implant at least partially in said first and second excision sites, said implant having a load bearing surface comprising a contour based on an original contour of said articular surface.
1 more element
An implant comprising:
- a load bearing surface comprising a first surface portion having a geometry based on an intersection of a first portion of an articular surface and a first circular projection, and a second surface portion having a geometry based on an intersection of a second portion of said articular surface and a second circular projection, said first and second surface portions at least partially intersecting;
- and
- a bone facing surface.
A method of forming an implant site comprising:
- providing a cutter;
- disposing said cutter between a first articular surface and a second articular surface;
- providing a drive shaft extending from said cutter;
- coupling said drive shaft to said cutter;
- and
- rotating said cutter by rotating said drive shaft.
3 more elements
Dependencies are inferred from the claim text.