System and Method for Joint Resurface Repair
First Claim
1. A guide device for locating a working axis, said device comprising:
- a body portion;
a first contact portion having a first and a second contact surface spaced radially outwardly from said body portion; and
a second contact portion having a third and a fourth contact surface spaced radially outwardly from and moveably disposed along a longitudinal axis of said body portion, wherein said contact surfaces of said first contact portion are configured to contact with an articular surface about a first and a second opposite side of a defect site on an articular surface generally only along a first curvature of said articular surface, and wherein said contact surfaces of said second contract portion are configured to contact with said articular surface about a third and a fourth opposite side of said defect site generally only along another curvature of said articular surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A generic bone implant, or set of standardized implants, is created based on using a guide device to develop an axis normal to an articular surface of bone and collecting only one or two data points. A generic cutting tool is used to cut the bone to a point where a generic implant can be used. Several improved tools relating to the procedure for using such an implant, as well as methods for using implants consistent with the invention are further described, including: single-axis and biaxial drill guide tools and methods, generic single-axis implant methods and devices, generic biaxial implant methods and devices, tools and methods for holding or delivering an implant, removal or revision tools and methods, digital measuring systems and methods, and set of measuring gauges for determining the appropriate implant dimensions.
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Citations
12 Claims
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1. A guide device for locating a working axis, said device comprising:
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a body portion; a first contact portion having a first and a second contact surface spaced radially outwardly from said body portion; and a second contact portion having a third and a fourth contact surface spaced radially outwardly from and moveably disposed along a longitudinal axis of said body portion, wherein said contact surfaces of said first contact portion are configured to contact with an articular surface about a first and a second opposite side of a defect site on an articular surface generally only along a first curvature of said articular surface, and wherein said contact surfaces of said second contract portion are configured to contact with said articular surface about a third and a fourth opposite side of said defect site generally only along another curvature of said articular surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for establishing an axis substantially normal to a portion of an articular surface of bone generally defined by a first and a second curvature, said method comprising:
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providing a guide device comprising a cannulated body portion, a first contact portion having a first and a second contact surface spaced radially outwardly from said body portion, and a second contact portion having a third and a fourth contact surface spaced radially outwardly from and moveably disposed along a longitudinal axis of said body portion; contacting said first contact portion of said guide device with said articular surface about a first and a second opposite side of a defect site on an articular surface generally along only said first curvature; and contacting said second contact portion of said guide device with said articular surface about a third and a fourth opposite side of said defect site generally along only said second curvature, wherein said cannulated body of said guide device establishes an axis generally normal to the portion of the articular surface of bone based on said first curvature and said second curvature of said articular surface. - View Dependent Claims (9, 10, 11)
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12. A guide device for locating a working axis, said device comprising:
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a cannulated body portion; first and a second contact surface spaced radially outwardly from said body portion generally along a first longitudinal plane of said body portion, said first and said second contract surface being configured to contact with an articular surface about a first and a second opposite side of a defect site on an articular surface generally only along a first curvature of said articular surface; and a third and a fourth contact surface spaced radially outwardly from said body portion generally along a second longitudinal plane of said body portion, said first and said second longitudinal planes being substantially normal to each other, wherein said third and said fourth contact surfaces are configured to move along a longitudinal axis of body portion relative to said first and said second contract surfaces and wherein said third and said fourth contact surfaces are configured to contact with said articular surface about a third and a fourth opposite side of said defect site generally only along another curvature of said articular surface.
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Specification