US 7,320,709 B2
Method and system for mammalian joint resurfacing
Jeffrey C. Felt, Greenwood, Minn. (US); Mark A. Rydell, Golden Valley, Minn. (US); Paul J. Buscemi, Long Lake, Minn. (US); Alexander Arsenyev, Eagan, Minn. (US); and Christopher H. Porter, Woodinville, Wash. (US)
Assigned to Advanced Bio Surfaces, Inc., Minnetonka, Minn. (US)
Filed on Nov. 24, 2003, as Appl. No. 10/722,019.
Application 10/722019 is a continuation of application No. 10/167963, filed on Jun. 12, 2002, granted, now 6,652,587.
Application 10/167963 is a continuation in part of application No. 10/121455, filed on Apr. 12, 2002, abandoned.
Application 10/121455 is a continuation in part of application No. 10/098601, filed on Mar. 15, 2002, abandoned.
Application 10/098601 is a continuation of application No. PCT/US01/41908, filed on Aug. 28, 2001.
Claims priority of provisional application 60/228444, filed on Aug. 28, 2000.
Prior Publication US 2004/0107000 A1, Jun. 03, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 2/38 (2006.01); A61F 2/28 (2006.01)
U.S. Cl. 623—20.16  [623/20.32] 24 Claims
OG exemplary drawing
 
1. A system for the modification of a knee, the system comprising a knee implant that provides a first major surface adapted to be positioned upon a tibial plateau, and a second major surface adapted to be positioned against a femoral condyle, the second major surface being provided with a femoral glide path to facilitate its performance in situ, the glide path being in the form of a generally central depression, the implant further comprising one or more tibial projections, extending distally over a rim of the tibial plateau and into a posterior cruciate ligament (PCL) fossa of a tibia, wherein the implant remains substantially permanently anchored in place with respect to the tibial plateau when positioned in the knee by a combination comprising the first major surface, the second major surface, and the tibial projection(s).