Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Reexamination Certificate
2005-09-22
2008-08-19
Sweet, Thomas J (Department: 3774)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
C623S020270
Reexamination Certificate
active
07413577
ABSTRACT:
An improvement in a total stabilized knee prosthesis wherein stabilization against uncontrolled relative rotation between a femoral component and a tibial component about a longitudinal axis, during articulation of the knee prosthesis, is attained by the engagement of a femoral stabilizing compartment with a tibial stabilizing post, the improvement including profile contour configurations on inner surface portions of condylar surfaces and on corresponding outer surface portions of tibial articular surfaces, the profile contour configurations being flared outwardly, in directions away from an intermediate sagittal plane, along posterior aspects of the condylar surfaces and the tibial articular surfaces engaged through deep flexion for providing an engagement between the profile contour configurations sufficient to establish a desired level of constraint against relative rotational movement between the femoral component and the tibial component about the longitudinal axis enabling a decrease in the level of constraint provided by the engagement between the post and the compartment during articulation through deep flexion.
REFERENCES:
patent: 3748662 (1973-07-01), Helfet
patent: 4261064 (1981-04-01), Helfet
patent: 4888021 (1989-12-01), Forte et al.
patent: 4944756 (1990-07-01), Kenna
patent: 5011496 (1991-04-01), Forte et al.
patent: 5011498 (1991-04-01), Forte et al.
patent: 5059216 (1991-10-01), Winters
patent: 5071438 (1991-12-01), Jones et al.
patent: 5147405 (1992-09-01), Van Zile et al.
patent: 5192328 (1993-03-01), Winters
patent: 5219362 (1993-06-01), Tuke et al.
patent: 5236461 (1993-08-01), Forte
patent: 5282870 (1994-02-01), Moser et al.
patent: 5395401 (1995-03-01), Bahler
patent: 5871546 (1999-02-01), Colleran et al.
patent: 5879394 (1999-03-01), Ashby et al.
patent: 5935173 (1999-08-01), Roger et al.
patent: 5964808 (1999-10-01), Blaha et al.
patent: 6013103 (2000-01-01), Kaufman et al.
patent: 6203576 (2001-03-01), Afriat et al.
patent: 6325828 (2001-12-01), Dennis et al.
patent: 6406497 (2002-06-01), Takei
patent: 6494915 (2002-12-01), Villar Gonzalez et al.
patent: 2004/0243244 (2004-12-01), Otto et al.
Iwaki, H. et al, “Tibiofemoral movement 1: The shapes and relative movements of the femur and tibia in the unloaded cadaver knee,”J Bone Joint Surg(Br), 2000:82-B, 1189-95.
Hill, P.F. et al, “Tibiofemoral movement 2: The loaded and unloaded living knee studied by MRI,”J Bone Joint Surg(Br), 2000: 82-B, 1196-8.
Nakagawa, S. et al, “Tibiofemoral movement 3: Full flexion in the living knee studied by MRI,”J Bone Joint Surg(Br), 2000:82-B, 1199-2000.
Karrholm, J. et al, “Tibiofemoral movement 4: Changes of axial tibial rotation caused by forced rotation at the weight-bearing knee studied by RSA,”J Bone Joint Surg(Br), 2000:82-B, 1201-3.
Wright Medical Technology, Inc., “Advance Knee System, Medial—Pivot Knee,” 1-5.
Wright Medical Technology, Inc., “Advance Knee System, Traditional, Medial—Pivot, Posterior Stabilized,” 1-8.
Pinskerova, V. et al, “The shapes and relative movements of the femur and tibia in the unloaded cadaveric knee: A study using MRI as an anatomic tool.”
Howmedica Inc., “Duracon, the Femoral System,” 1994, p. 5.
Howmedica Inc., “Duracon, the Tibial System,” 1994, p. 7.
Stryker Howmedica Osteonics, “Duracon PS, Posteriorly Stabilized Total Knee System.”
Stryker Howmedica Osteonics, “Duracon CR, Cruciate Retaining Total Knee System.”
Enclosed are two Forms PTO/SB/08A and two Froms PTO/SB/08B which contains a separate list of the references. Only copies of the publications are enclosed. The U.S. patents are not submitted herewith, in accordance with the notice in the United States Patent and Trademark OfficeOG Notices:Aug. 5, 2003.
Iwaki, H. et al, “Tibiofemoral movement 1: The shapes and relative movements of the femur and tibia in the unloaded cadaver knee,” J Bone Joint Surg (Br), 2000:82-B, 1189-95.
Hill, P.F. et al, “Tibiofemoral movements 2: The loaded and unloaded living knee studied by MRI,” J Bone Joint Surg (Br), 2000:82-B, 1196-8.
Nakagawa, S. et al, “Tibiofemoral movement 3: Full flexion in the living knee studied by MRI,” J Bone Joint Surg (Br), 2000:82-B, 1199-2000.
Karrholm, J. et al, “Tibiofemoral movement 4: Changes of axial tibial rotation caused by forced rotation . . . ” J Bone Joint Surg (Br), 2000:82-B, 1199-2000.
Wright Medical Technology, Inc., “Advanced Knee System, Medial—Pivot Knee,” 1-5.
Wright Medical Technology, Inc., “Advance Knee System, Traditional, Medial—Pivot, Posterior Stabilized,” 1-8.
Pinskerova, V. et al, “The shapes and relative movements of the femur and tibia in the unloaded cadaveric knee: A study using MRI as an anatomic tool.”
Howmedica Inc., “Duracon, the Femoral System,” 1994, p. 5.
Howmedica Inc., “Duracon, the Tibial System,” 1994, p. 7.
Stryker Howmedica Osteonics, “Duracon PS, Posteriorly Stabilized Total Knee System.”
Stryker Howmedica Osteonics, “Duracon CR, Cruciate Retaining Total Knee System.”
Howmedica Osteonics Corp.
Jacob Arthur
Stroud Jonathan R
Sweet Thomas J
LandOfFree
Total stabilized knee prosthesis with constraint does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Total stabilized knee prosthesis with constraint, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Total stabilized knee prosthesis with constraint will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4002993