A knee joint prosthesis

A - Human Necessities – 61 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61F 2/38 (2006.01) A61F 2/00 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2512617

A knee joint prosthesis which comprises a tibial component (4, 6) and a femoral component (2). The femoral component has condyles (14, 16) which act against the tibial component, directly or indirectly, during flexing of the knee. A cam (20) on the femoral component acts against a post (26) on the tibial component at high flex angles. The surface of the post which is contacted by the cam at high flex angles is convex when the post viewed generally perpendicular to the tibial bone contact and bearing surfaces, and the femoral bearing surface which is provided by the cam, where it contacts the convex surface of the post at high flex angles, is locally concave (32) when viewed along the surface of the post which contacts the cam so that the area of contact between the post and the cam is greater at high flex angles than at lower flex angles.

L'invention concerne une prothèse d'articulation du genou qui comprend une pièce tibiale (4, 6) et une pièce fémorale (2). La pièce fémorale présente des condyles (14, 16) qui agissent contre la pièce tibiale, directement ou indirectement, pendant la flexion du genou. Une tige (20) sur la pièce fémorale agit contre un tenon (26) sur la pièce tibiale à des angles de flexion supérieurs. Ladite surface du tenon avec laquelle la tige rentre en contact au niveau des angles de flexion supérieurs est convexe, lorsqu'on observe le tenon généralement perpendiculaire au contact de l'os tibial et aux surfaces de support, et la surface de support fémorale engendrée par la tige, où elle rentre en contact avec la surface convexe du tenon au niveau des angles de flexion supérieurs, est localement concave (32), lorsqu'on l'observe le long de la surface du tenon qui rentre en contact avec la tige, de telle manière que la zone de contact entre le tenon et la tige est supérieure au niveau des angles de flexion supérieurs qu'au niveau des angles de flexion inférieurs.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

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

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

Rate now

     

Profile ID: LFCA-PAI-O-1750532

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.