Dynamic knee balancer with pressure sensing

Details Dynamic knee balancer with pressure sensing Dynamic knee balancer with pressure sensing

2004-10-25

2009-08-25

Robert, Eduardo C (Department: 3733)

Surgery

Instruments

Orthopedic instrumentation

C606S08600R, C600S587000

Reexamination Certificate

active

07578821

ABSTRACT:
A device for performing a surgical procedure on a knee includes an adjustable femoral portion, a tibial portion and at least one sensor coupled with the femoral and/or tibial portions to sense pressure exerted by the femoral and tibial portions against one another. The femoral portion is adapted for removably coupling with a distal end of a femur to adjust tension in soft tissue adjacent the knee and has at least one positioning feature adapted to move relative to the distal end of the femur as the femoral portion is adjusted, thus helping position a femoral prosthetic on the distal end of the femur. The sensor(s) may be adapted to sense pressure at medial and lateral sides of the knee, and relative pressures may be displayed as data on a visual display. Adjustments to the femoral member may be made to balance pressure at flexion and extension of the knee.

REFERENCES:
patent: 4211228 (1980-07-01), Cloutier
patent: 4220146 (1980-09-01), Cloutier
patent: 4501266 (1985-02-01), McDaniel
patent: 4524766 (1985-06-01), Petersen
patent: 4567886 (1986-02-01), Petersen
patent: 5163949 (1992-11-01), Bonutti
patent: 5197488 (1993-03-01), Kovacevic
patent: 5207711 (1993-05-01), Caspari et al.
patent: 5360016 (1994-11-01), Kovacevic
patent: 5464406 (1995-11-01), Ritter et al.
patent: 5470354 (1995-11-01), Hershberger et al.
patent: 5514183 (1996-05-01), Epstein et al.
patent: 5520695 (1996-05-01), Luckman
patent: 5540696 (1996-07-01), Booth, Jr. et al.
patent: 5597379 (1997-01-01), Haines et al.
patent: 5630820 (1997-05-01), Todd
patent: 5649929 (1997-07-01), Callaway
patent: 5656785 (1997-08-01), Trainor
patent: 5669914 (1997-09-01), Eckhoff
patent: 5688282 (1997-11-01), Baron et al.
patent: 5733292 (1998-03-01), Gustilo et al.
patent: 5735904 (1998-04-01), Pappas
patent: 5782925 (1998-07-01), Collazo et al.
patent: 5800438 (1998-09-01), Tuke et al.
patent: 5860980 (1999-01-01), Axelson, Jr. et al.
patent: 5880976 (1999-03-01), DiGioia, III
patent: 5911723 (1999-06-01), Ashby et al.
patent: 6022377 (2000-02-01), Nuelle et al.
patent: 6056756 (2000-05-01), Eng et al.
patent: 6096043 (2000-08-01), Techiera et al.
patent: 6488711 (2002-12-01), Grafinger
patent: 6575980 (2003-06-01), Robie et al.
patent: 6632225 (2003-10-01), Sanford et al.
patent: 6648896 (2003-11-01), Overes et al.
patent: 6972039 (2005-12-01), Metzger et al.
patent: 6984249 (2006-01-01), Keller
patent: 7097662 (2006-08-01), Evans et al.
patent: 2003/0130665 (2003-07-01), Pinczewski et al.
patent: 2003/0187452 (2003-10-01), Smith et al.
patent: 2004/0019382 (2004-01-01), Amirouche
patent: 2004/0064073 (2004-04-01), Heldreth
patent: 2004/0064191 (2004-04-01), Wasielewski
patent: 2004/0236424 (2004-11-01), Berez et al.
patent: 2005/0010302 (2005-01-01), Dietz et al.
patent: 2005/0119661 (2005-06-01), Hodgson et al.
patent: 2006/0081063 (2006-04-01), Neubauer et al.
patent: 2006/0241640 (2006-10-01), Briard et al.
patent: 2007/0198022 (2007-08-01), Lang et al.
patent: 1 402 857 (2004-03-01), None
Delio, “Hoping for a Knee-Jerk Reaction” Wired News. 2004.,[retrieved on Aug. 22, 2005], Retrieved from the Internet on <URL: http://wiredvig.wired.com
ews/medtech/0,1286,62716,00.html?tw=newsletter—to>.
Rapp, “Electronic Knee Implant May Benefit Future TKR Patients”Orthopedics Today, vol. 25, No. 3; (Mar. 2005), p. 14-15.
Eckhoff et al., “Three-Dimensional Morphology and Kinematics of the Distal Part of the Femur Viewed in Virtual Reality”,Jnl. Bone&Jt. Surg., vol. 85-A Supplement 4, 2003, 97-104.
Howe et al., “Robotics for Surgery,”Annu. Rev. Biomed. Eng. 1999, 01:211-240.
Mihalko et al., “Comparison of Ligament-Balancing Techniques During Total Knee Arthroplasty,”Jnl. Bone&Jt. Surg., vol. 85-A Supplement 4, 2003, 132-135.
Ries et al., “Soft-Tissue Balance in Revision Total Knee Arthroplasty,”Jnl. Bone&Jt. Surg., vol. 85-A Supplement 4, 2003, 38-42.
Ries et al., “Soft-Tissue Balance in Revision Total Knee Arthroplasty,”Jnl. Bone&Jt. Surg., vol. 86-A Supplement 1, 2003, 82-86.
Palmer et al., “Total Knee Arthoplasty”[online],[retrieved on Dec. 11, 2003]. Retrieved on from the Internet <URL: http://www.emedicine.com/orthoped/topic347.htm.> (18 pages total).
The Gray Sheet, “Knee Implant Wear Debris, Changing Demographics Weighed by NIH Panel”, FDC Reports “The Gray Sheet”, Dec. 1, 2003, p. 10.
The Gray Sheet, “Knee Implant Surgery Techniques Can Obscure Tech Advances—NIH Panel”, FDC Reports “The Gray Sheet”, Dec. 15, 2003, p. 11.
The Gray Sheet, “NIH Consensus: More Knee Replacements Among Young, Old to Grow Market”, FDC Reports “The Gray Sheet”, Dec. 15, 2003, p. 12.

Affiliated with

Also associated with

Rating

Dynamic knee balancer with pressure sensing does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4077235