Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Implantable prosthesis – Bone
Patent
1986-04-02
1987-02-10
Frinks, Ronald L.
Prosthesis (i.e., artificial body members), parts thereof, or ai
Implantable prosthesis
Bone
A61F 242
Patent
active
046421220
ABSTRACT:
An implantable joint for replacing a human toe joint. The joint includes a one-piece tack member implantable into the distal end of a metatarsal, and a one-piece socket member implantable into the proximal end of a phalanx. The tack member has an enlarged head defining a smooth part-spherical convex bearing surface which engages a smooth part-spherical concave bearing surface on an enlarged head of the socket member. The head of the socket member is elliptical in cross section so that the concave bearing surface extends through about 90.degree. in the vertical direction. The convex bearing surface of the tack member is nonsymmetrical relative to the longitudinal axis and extends through an angle which closely approximates 180.degree., with this bearing surface projecting downwardly from the horizontal longitudinal axis through an extent greater than 90.degree.. Each of the members has a stem which projects for engagement within the respective bone, the stems being disposed with their longitudinal axes extending generally parallel with but disposed downwardly from the longitudinal axes of the respective head parts.
REFERENCES:
patent: 3946445 (1976-03-01), Bentley et al.
patent: 4156296 (1979-05-01), Johnson et al.
patent: 4231121 (1980-11-01), Lewis
patent: 4242759 (1981-01-01), White
patent: 4245359 (1981-01-01), Stuhmer
patent: 4367562 (1983-01-01), Gauthier
patent: 4375703 (1983-03-01), Evans et al.
Frinks Ronald L.
Laure Prosthetics, Inc.
LandOfFree
Toe implant does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Toe implant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toe implant will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2361886