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US 2004/0106928 A1Published application
Tibial resurfacing system
AssigneeArthrosurface Incorporated
InventorSteven Ek
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AssigneeArthrosurface Incorporated
InventorSteven Ek
Estimating the term…
A tibial resurfacing system is provided that includes a drill guide, bone chisel and implant. In one aspect, the system includes a drill guide that includes a targeting ring that is shaped to be placed on the superior tibial surface and a bore section that is connected to the ring to create an axis through the tibia to the superior tibial surface in the vicinity of the targeting ring. The drill guide permits a drill pin and/or drill to be advanced through the tibia to the superior tibial surface. In another aspect, a bone chisel is provided that includes an elongated tubular structure having a first end and a bone-cutting end, and the bone-cutting end is terminated in a transverse angle thereby creating an elliptical bone-cutting face. In another aspect, an implant is provided that includes an angled bearing element formed of a cylindrical member having a first end and a second end. The first end is formed at an angle that creates an elliptical face of the first end, and the first end defines a load-bearing surface of an articular surface.
A drill guide, for positioning a drill along an axis defined through a tibia bone and through a superior tibial surface, said axis being formed at an angle with respect to the long axis of said tibia, said superior tibial surface bounded at least partially by a meniscus of a knee, said drill guide comprising a targeting ring portion having at least one dimension sized to be equal to or less than said superior tibial surface bounded by said meniscus of said knee.
A bone chisel, comprising an elongated tubular structure having a first end and a bone-cutting end, said bone-cutting end terminated in a transverse angle thereby creating an elliptical bone-cutting face.
An articular surface implant, comprising an angled bearing element comprising a cylindrical member having a first end and a second end, said first end being formed at an angle that creates an elliptical face of said first end, said first end defining a load-bearing surface of an articular surface.
An articular surface implant, comprising an angled bearing element, a fixation element adapted to engage bone, and an intermediate mount element adapted to couple said angled bearing element to said fixation element.
An articular surface implant, comprising an angled bearing element comprising a cylindrical member having a first end and a second end, said first end being formed at an angle that creates an elliptical face of said first end, said first end defining a load-bearing surface of an articular surface, wherein said cylindrical member having means formed thereon to engage bone.
An articular surface implant, comprising an angled bearing element comprising a cylindrical member having a first end and a second end, said first end being formed at an angle that creates an elliptical face of said first end, said first end defining a load-bearing surface of an articular surface;
Dependencies are inferred from the claim text.