Retrograde delivery of resurfacing devices
First Claim
Patent Images
1. A system for creating an implant site on an articular surface of a bone comprising:
- a drill guide comprising;
an annular locating ring configured to be disposed generally normal to said articular surface and at least partially about a defect on said articular surface;
a drill bushing defining a working axis extending through said annular locating ring; and
an arm co-axially aligning said locating ring 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 bone substantially normal to said articular surface and provide an opening on said articular surface about said defect;
a shuttle configured to be at least partially disposed within said passage in said bone, said shuttle further configured to be coupled to a device and to deliver said device to said working axis;
a reamer configured to excise an implant site in a portion of said articular surface about said defect, said reamer further configured to be coupled to said shuttle and configured to be conveyed to said articular surface by said shuttle;
a cannulated drive shaft configured to be at least partially disposed within said passage and further configured to be coupled to said reamer, wherein said shuttle is configured to be at least partially disposed within a lumen of said cannulated shaft and is further configured to be secured to said reamer;
a screw configured to be coupled to said shuttle and configured to be conveyed to said implant site and center said screw with respect to said implant site; and
a driver configured to engage said screw to threadably drive said screw into said passage.
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Accused Products
Abstract
A method according to one embodiment may provide access to an articular surface of a bone. The method includes forming a passage through at least a portion of the bone. The passage provides an opening in the articular surface. The method further includes inserting a tether through the passage. The tether inserted through the passage can be coupled to at least one device from an insertion site remote from the articular surface. The tether can be withdrawn through the passage to convey the device to a location proximate the articular surface.
410 Citations
18 Claims
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1. A system for creating an implant site on an articular surface of a bone comprising:
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a drill guide comprising; an annular locating ring configured to be disposed generally normal to said articular surface and at least partially about a defect on said articular surface; a drill bushing defining a working axis extending through said annular locating ring; and an arm co-axially aligning said locating ring 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 bone substantially normal to said articular surface and provide an opening on said articular surface about said defect; a shuttle configured to be at least partially disposed within said passage in said bone, said shuttle further configured to be coupled to a device and to deliver said device to said working axis; a reamer configured to excise an implant site in a portion of said articular surface about said defect, said reamer further configured to be coupled to said shuttle and configured to be conveyed to said articular surface by said shuttle; a cannulated drive shaft configured to be at least partially disposed within said passage and further configured to be coupled to said reamer, wherein said shuttle is configured to be at least partially disposed within a lumen of said cannulated shaft and is further configured to be secured to said reamer; a screw configured to be coupled to said shuttle and configured to be conveyed to said implant site and center said screw with respect to said implant site; and a driver configured to engage said screw to threadably drive said screw into said passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification