Osteochondral transfer systems and methods
AssigneeUniversity of Utah Research Foundation
InventorsZackery Evans, T. Wade Fallin, Travis G. Maak, Charles L. Saltzman, Austin Hickey
Life of this patent
Estimating the term…
Abstract
A system may be provided for osteochondral defect repair, and may include a guide with a first leg, a second leg, a third leg, a fourth leg, and a guide feature. The first leg, the second leg, the third leg, and the fourth leg may each have a distal tip. The distal tips of the first leg, the second leg, the third leg, and the fourth leg may lie in a plane. The guide feature may be oriented to define a working axis, perpendicular to the plane, along which a cutter is movable to remove bone and cartilage from a first bone.
Claims34
A system for osteochondral defect repair, the system comprising:
- a guide comprising:
- a first leg;
- a second leg;
- a third leg;
- a fourth leg;
- and
- a guide feature;
- wherein:
- the first leg, the second leg, the third leg, and the fourth leg each comprise a distal tip at a fixed location relative to the guide feature;
- the distal tips of the first leg, the second leg, the third leg, and the fourth leg lie in a plane;
- the distal tips are configured to contact a cartilage surface on a first bone independently of contact between the cartilage surface and any other distal tip besides the distal tips of the first leg, the second leg, the third leg, and the fourth leg;
- and
- the guide feature is oriented to define a working axis, perpendicular to the plane, along which a cutter is movable to remove bone and cartilage from a first bone.
A system for osteochondral defect repair, the system comprising:
- a cutter configured to slide along a pin to remove bone and cartilage from a first bone;
- and
- a guide configured to guide placement of the pin, the guide comprising:
- a first leg;
- a second leg;
- a third leg;
- a fourth leg;
- and
- a guide feature;
- wherein:
- the first leg, the second leg, the third leg, and the fourth leg each comprise a distal tip at a fixed location relative to the guide feature;
- the distal tips of the first leg, the second leg, the third leg, and the fourth leg lie in a plane;
- and
- the guide feature is oriented to guide placement of the pin along a working axis perpendicular to the plane.
A method of repairing an osteochondral defect, the method comprising:
- positioning a guide having four distal tips over a cartilage surface so that the four distal tips are positioned about a periphery of a section of the cartilage surface on a first bone;
- placing the guide so that three of the distal tips are in contact with the cartilage surface;
- rotating the guide until all four of the distal tips are in contact with the cartilage surface;
- and
- using the guide to guide a cutter to remove the section from the first bone.
A method of repairing an osteochondral defect, the method comprising:
- positioning a guide having four distal tips over a cartilage surface so that the four distal tips are positioned about a periphery of a section of the cartilage surface on a first bone;
- placing the guide so that the distal tips are in contact with the cartilage surface, with two distal tips on each side of a plane of symmetry of the cartilage surface;
- and
- using the guide to guide a cutter to remove the section from the first bone.
A system for osteochondral defect repair, the system comprising:
- a guide comprising:
- a first leg;
- a second leg;
- a third leg;
- a fourth leg;
- and
- a guide feature;
- wherein:
- the first leg, the second leg, the third leg, and the fourth leg each comprise a distal tip at a fixed location relative to the guide feature such that the distal tips are movable into contact with cartilage on a perimeter of a section of a first bone;
- the distal tips of the first leg, the second leg, the third leg, and the fourth leg lie in a plane;
- and
- the guide feature is oriented to define a working axis, perpendicular to the plane, along which a cutter is movable to remove the section of bone and cartilage from the first bone.
Dependencies are inferred from the claim text.