Porous coated prosthesis

Details Porous coated prosthesis Porous coated prosthesis

1990-05-04

1991-04-16

Isabella, David J.

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

Implantable prosthesis

Bone

623 16, A61F 232, A61F 228

Patent

active

050079310

ABSTRACT:
An artificial implant includes an elongated stem member which is intended for cementless fixation in the medullary canal of a long bone. The stem member is provided with one or more longitudinally extending channels. A porous medium for enabling and encouraging bone ingrowth fixation is bonded to the bottom surface of each channel but is free of the sidewalls of the channel. It has a first outer surface lying in a plane generally parallel to that of the external surface of the stem member and second and third surfaces lying generally, respectively, in angularly spaced radial planes containing the longitudinal axis of the stem member. The resulting implant has a flexibility which can be tailored to that of the bone. Also, the porous medium enables an initial interference fit with the medullary canal of the long bone as well as bone ingrowth fixation over a substantially enlarged surface area than previously possible. Also, notching the high stress region on the external surface of the stem member as previously caused by application of the porous medium to the outermost, external, surface of the stem member is avoided.

REFERENCES:
patent: 3605123 (1971-09-01), Hahn
patent: 3740769 (1973-06-01), Haboush
patent: 3855638 (1974-12-01), Pilliar
patent: 4195367 (1980-04-01), Kraus
patent: 4536894 (1985-08-01), Galante et al.
patent: 4546501 (1985-10-01), Gustilo et al.
patent: 4681589 (1987-07-01), Tronzo
patent: 4718915 (1988-01-01), Epinette
patent: 4743262 (1988-05-01), Tronzo
patent: 4840632 (1989-06-01), Kampner
patent: 4854496 (1989-08-01), Bugle
patent: 4865608 (1989-09-01), Brooker, Jr.
patent: 4944759 (1990-07-01), Mallory et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-419074