System and method for joint resurfacing and repair
AssigneeArthrosurface Incorporated
InventorsGeorge Sikora, Steven W. Ek
Life of this patent
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Abstract
An implant resection system for preparing an implant site to replace a defect in an articular surface of a first bone includes a first guide configured to be coupled generally to the first bone. The first guide includes a body portion defining a channel configured to receive a pin, wherein the pin is configured to penetrate and form a longitudinally disposed bore within the first bone. The implant resection system further includes a second guide configured to be coupled generally perpendicular to the first bone proximate to the defect by way of the bore. The second guide includes a drill bit configured to form an excision site through a portion of the articular surface in preparation of receipt of an implant.
Claims21
(canceled)
A guide for preparing an implant site to replace a defect in a tibial surface, comprising:
- a jig having a body portion having a first passageway and a second passageway defined therein, wherein the first and second passageways being generally parallel to each other and wherein the first and second passageways each being generally cylindrical;
- a first alignment pin and a second alignment pin to be advanced through the first passageway and the second passageway, respectively;
- the first and second alignment pins to be advanced into a tibia bone beneath the defect in a tibial surface;
- wherein the first and second alignment pins each including a depth feature to provide a visual indication of the depth of each respective one alignment pin into the tibia bone;
- and
- a spoon member coupled to the jig, the spoon member having a generally convex base portion having a contour generally corresponding to a contour of the tibial surface;
- wherein positioning the spoon member on the tibial surface causes the first and second passageways and the first and second alignment pins to be positioned beneath the defect in the tibial surface.
A system for preparing an implant site to replace a defect in a tibial surface, comprising:
- a jig having a body portion having a first passageway and a second passageway defined therein, wherein the first and second passageways being generally parallel to each other and wherein the first and second passageways each being generally cylindrical;
- at least one alignment pin to be advanced through the first passageway or the second passageway;
- the at least one alignment pin to be advanced into a tibia bone beneath the defect in a tibial surface;
- wherein the at least one alignment pin including a depth feature to provide a visual indication of the depth of the at least one alignment pin into the tibia bone;
- and
- a spoon member coupled to the jig, the spoon member having a generally convex base portion having a contour generally corresponding to a contour of the tibial surface;
- wherein positioning the spoon member on the tibial surface causes the first and second passageways and the at least one alignment pin to be positioned beneath the defect in the tibial surface;
- and
- a cannulated drill bit to be advanced over the at least one alignment pin disposed within the first passageway to form a first truncated cylindrical excision site in the tibial bone, the cannulated drill bit to be advanced over the at least one alignment pin disposed within the second passageway to form a second truncated cylindrical excision site in the tibial bone.
A system for preparing an implant site to replace a defect in a tibial surface, comprising:
- a jig having a body portion having a first passageway and a second passageway defined therein, wherein the first and second passageways being generally parallel to each other and wherein the first and second passageways each being generally cylindrical;
- at least one alignment pin to be advanced through the first passageway or the second passageway;
- the at least one alignment pin to be advanced into a tibia bone beneath the defect in a tibial surface;
- wherein the at least one alignment pin including a depth feature to provide a visual indication of the depth of the at least one alignment pin into the tibia bone;
- and
- a spoon member coupled to the jig, the spoon member having a generally convex base portion having a contour generally corresponding to a contour of the tibial surface;
- wherein positioning the spoon member on the tibial surface causes the first and second passageways and the at least one alignment pin to be positioned beneath the defect in the tibial surface;
- a cannulated drill bit to be advanced over the at least one alignment pin disposed within the first passageway to form a first truncated cylindrical excision site in the tibial bone, the cannulated drill bit to be advanced over the at least one alignment pin disposed within the second passageway to form a second truncated cylindrical excision site in the tibial bone;
- and
- a tibial implant including a load bearing surface having a surface contour substantially corresponding to the tibial surface and a bone facing surface having a contour substantially corresponding to the first and second excision sites in the tibia bone.
Dependencies are inferred from the claim text.