Rotatable tibial prosthesis with keyed axial securement

Details Rotatable tibial prosthesis with keyed axial securement Rotatable tibial prosthesis with keyed axial securement

1997-09-25

2000-01-04

Willse, David H.

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

Implantable prosthesis

Bone

623 18, A61F 238

Patent

active

060105348

ABSTRACT:
A joint prosthesis system includes first and second components that are joinable to one another in a manner to permit axial rotation of one component relative to the other component while achieving axial securement of the two components. In one embodiment the joint prosthesis system is a knee joint prosthesis and the two components are a tibial tray and a tibial bearing insert. The tibial bearing insert includes a mating stem that has one or more positive surface features on its exterior surface. The positive surface features mate with axial slot(s) formed in a mating cavity of the tibial tray to enable insertion of the mating stem within the mating cavity. Upon insertion the positive surface features are engaged by a circumferential groove disposed distally of the axial slot(s). Misalignment of the positive surface features and the axial slot(s) enables proper orientation of the tibial tray and tibial bearing insert, and provides axial securement of the two components.

REFERENCES:
patent: 4136405 (1979-01-01), Pastride et al.
patent: 4219893 (1980-09-01), Noiles
patent: 4301553 (1981-11-01), Noiles
patent: 4538305 (1985-09-01), Engelbrecht et al.
patent: 4790853 (1988-12-01), Engelbrecht et al.
patent: 4888021 (1989-12-01), Forte et al.
patent: 4950297 (1990-08-01), Elloy et al.
patent: 5011496 (1991-04-01), Forte et al.
patent: 5026399 (1991-06-01), Engelbrecht et al.
patent: 5059216 (1991-10-01), Winters
patent: 5071438 (1991-12-01), Jones et al.
patent: 5080675 (1992-01-01), Lawes et al.
patent: 5171283 (1992-12-01), Pappas et al.
patent: 5370699 (1994-12-01), Hood et al.
patent: 5370701 (1994-12-01), Finn
patent: 5387240 (1995-02-01), Pottenger et al.
patent: 5395401 (1995-03-01), Baher
patent: 5413608 (1995-05-01), Keller
patent: 5489311 (1996-02-01), Cipolletti
patent: 5683468 (1997-11-01), Pappas
patent: 5755801 (1998-05-01), Walker et al.
patent: 5871543 (1999-02-01), Hofmann
DePuy.RTM., LCS AP Glide.TM., Clinical Evaluation, May 1995, 11 pp.

Affiliated with

Also associated with

Rating

Rotatable tibial prosthesis with keyed axial securement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotatable tibial prosthesis with keyed axial securement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotatable tibial prosthesis with keyed axial securement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1069194