Artificial knee joint

Details Artificial knee joint Artificial knee joint

2011-06-07

2011-06-07

Stewart, Alvin J (Department: 3774)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

C623S020260

Reexamination Certificate

active

07955394

ABSTRACT:
The artificial knee joint includes a femoral component, a tibial tray and an insert plate fixed onto the top surface of the tibial tray. The femoral component includes a femoral articular surface and a cam that is provided on the rear end of the femoral articular surface and protrudes from the femoral articular surface, the insert plate includes a tibial articular surface that makes contact with the femoral articular surface and a cam-receiving slide surface that makes contact with the cam. When the knee is extended, the joint takes a first sliding state in which the femoral articular surface slides against the tibial articular surface. When the knee is bent at an angle in a range from 90 to 160 degrees, the joint shifts from the first sliding state to a second sliding state in which the cam slides on the cam-receiving slide surface. When the knee is bent deeply with a bending angle of 180 degrees, the second sliding state is assumed in which a resection surface of the femoral component and the rear end of the insert plate are offset.

REFERENCES:
patent: 4298992 (1981-11-01), Burstein et al.
patent: 4634444 (1987-01-01), Noiles
patent: 4808185 (1989-02-01), Penenberg et al.
patent: 5282869 (1994-02-01), Miyajima et al.
patent: 5800552 (1998-09-01), Forte
patent: 6123729 (2000-09-01), Insall et al.
patent: 6203576 (2001-03-01), Afriat et al.
patent: 6402786 (2002-06-01), Insall et al.
patent: 6443991 (2002-09-01), Running
patent: 6699291 (2004-03-01), Augoyard et al.
patent: 6730128 (2004-05-01), Burstein
patent: 7351263 (2008-04-01), Afriat
patent: 7658767 (2010-02-01), Wyss
patent: 2005/0154472 (2005-07-01), Afriat
patent: 2006/0265080 (2006-11-01), McMinn
patent: 2009/0043395 (2009-02-01), Hotokebuchi et al.
patent: 2009/0319048 (2009-12-01), Shah et al.
patent: 2009/0326665 (2009-12-01), Wyss et al.
patent: 2009/0326666 (2009-12-01), Wyss et al.
patent: 4-158860 (1992-06-01), None
patent: 9-94261 (1997-04-01), None
patent: 10-155824 (1998-06-01), None
patent: 11-313845 (1999-11-01), None
patent: 3087344 (2002-08-01), None
patent: 102 01 744 (2004-02-01), None
patent: 2004-166802 (2004-06-01), None
International Search Report issued Oct. 3, 2006 in the International (PCT) Application No. PCT/JP2006/313986.
“Bi-Surface Total Knee System”; Kyocera; Version 5.0, 2002.

Affiliated with

Also associated with

Rating

Artificial knee joint does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Artificial knee joint, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Artificial knee joint will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2708856