Asymmetric femoral prosthesis

A - Human Necessities – 61 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61F 2/38 (2006.01)

Patent

CA 2196696

A knee prosthesis includes a femoral prosthesis member (60) having anterior (12), distal (15), and posterior (13, 14) articulating surface portions. The articulating surface portions comprising a pair of condylar surface portions (13, 14, 61, 62) that are positioned at differing distances from the non-articulating surface plane. In one form the posterolateral articulating surface is a greater distance away from the anterior non-articulating surface than the posteromedial articulating surface (Figs. 1 and 15). The femoral prosthesis has a non-articulating surface that includes a plurality of intersecting surfaces including at least distal (23, 24), anterior (17, 18), and posterior (20, 21) surfaces for receiving the patient's distal femur after it has been surgically prepared. A tibial component (50) has concave articulating surfaces that receive the femoral component articulating surface portions during use. The angle of femoral rotation generally about the mechanical axis generally changes when going through a normal range of motion of the patient's knee while maintaining alignment of the femoral and tibial articular surfaces. The femoral prosthesis also has a proximal anterior region (65) that is concave (Fig. 19). An improved patella groove design is also shown (Figs. 20-24).

Prothèse du genou comprenant un élément de prothèse fémorale (60) comportant des parties de surfaces articulaires antérieure (12), distale (15), et postérieures (13, 14). Les parties de surfaces articulaires comprennent une paire de parties de surface condyliennes (13, 14, 61, 62) qui sont positionnées à des distances différentes du plan de surface non articulaire. Dans une forme d'exécution, la surface articulaire postérolatérale est située à une plus grande distance de la surface antérieure non articulaire que la surface articulaire postéromédiale (fig. 1 et 15). La prothèse fémorale présente une surface non articulaire qui comporte un ensemble de surfaces d'intersection comprenant au moins des surfaces distales (23, 24), antérieures (17, 18) et postérieure (20, 21) recevant la partie distale du fémur du patient après sa préparation chirurgicale. Un composant tibial (50) présente des surfaces articulaires concaves recevant les parties de surfaces articulaires du composant fémoral pendant l'utilisation. L'angle de rotation fémorale généralement autour de l'axe mécanique change généralement dans une plage de mouvements normaux du genou du patient, tout en maintenant l'alignement des surfaces articulaires fémorales et tibiales. Cette prothèse fémorale présente également une région antérieure proximale (65) qui est concave (fig. 19). On présente également une structure perfectionnée à cannelure patellaire (fig. 20-24).

LandOfFree

Say what you really think

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

Rating

Asymmetric femoral 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 Asymmetric femoral prosthesis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymmetric femoral prosthesis will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1952261

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