Articular surface implant and delivery system
First Claim
Patent Images
1. A system for repairing a joint including a first and a second bone having at least a first and a second articular surface, respectively, said system comprising:
- a drill guide comprising;
a locating feature configured to be disposed on said first articular surface proximate to a defect on said first articular surface;
a drill bushing defining a working axis extending through said locating feature; and
an arm co-axially aligning said locating feature and said drill bushing;
a drill bit configured to be received at least partially through said drill bushing along said working axis to drill a passage through said first bone and provide an opening on said first articular surface about said defect;
a tether configured to be partially disposed within said passage in said first bone;
a reamer comprising a shaft and a cutter configured to excise an implant site in a portion of said first articular surface about said defect having a diameter larger than said passage;
an implant configured to be at least partially received in said implant site via said tether extending through said passage in said first bone, wherein said implant comprises an implant body and a load bearing surface disposed about a first end of said implant body, said load bearing surface having a contour substantially corresponding to a contour of said portion of said first articular surface about said defect.
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Accused Products
Abstract
A method is provided for delivering an implant for replacing a portion of an articular surface. The method may include forming a socket in an articulating feature that is capable of moving relative to the articular surface. An implant may be placed in the socket and the articulating feature may be moved relative to the articular surface to generally align the socket with an implant site formed in the articular surface. The implant may be transferred from the socket into the implant site.
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Citations
27 Claims
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1. A system for repairing a joint including a first and a second bone having at least a first and a second articular surface, respectively, said system comprising:
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a drill guide comprising; a locating feature configured to be disposed on said first articular surface proximate to a defect on said first articular surface; a drill bushing defining a working axis extending through said locating feature; and an arm co-axially aligning said locating feature and said drill bushing; a drill bit configured to be received at least partially through said drill bushing along said working axis to drill a passage through said first bone and provide an opening on said first articular surface about said defect; a tether configured to be partially disposed within said passage in said first bone; a reamer comprising a shaft and a cutter configured to excise an implant site in a portion of said first articular surface about said defect having a diameter larger than said passage; an implant configured to be at least partially received in said implant site via said tether extending through said passage in said first bone, wherein said implant comprises an implant body and a load bearing surface disposed about a first end of said implant body, said load bearing surface having a contour substantially corresponding to a contour of said portion of said first articular surface about said defect. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of replacing a portion an articular surface of a joint including a first and a second bone having at least a first and a second articular surface, respectively, said method comprising:
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excising an implant site in a portion of said articular surface of said first bone; excising a socket in an articular surface of said second bone adjacent to said first bone; disposing at least a portion of an implant within said socket, wherein said implant comprises an implant body and a load bearing surface disposed about a first end of said implant body, said load bearing surface having a contour substantially corresponding to a contour of said portion of said articular surface of said first bone; articulating said first bone and said second bone from a first position, wherein said socket is exposed relative to said articular surface of said first bone and is configured to receive said implant, to a second position, wherein said socket is generally aligned with said implant site; and
transferring said implant from said socket at least partially into said implant site.
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Specification