Intramedullary centralizer

Details Intramedullary centralizer Intramedullary centralizer

1990-10-23

1992-03-03

Isabella, David J.

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

Implantable prosthesis

Bone

606 95, A61F 228

Patent

active

050928929

ABSTRACT:
A centralizer for the stem of a prosthetic orthopedic implant adapted for implantation into a medullary canal has a hollow annular body portion. The annular body portion has an interior for receiving the stem of the implant. The body portion also includes at least three spring elements extending outwardly from the exterior surface of the body portion. Each spring element has a portion thereof extending generally tangentially with respect to the axial extent of the tapered stem and deformable circumferentially and inwardly towards the stem upon insertion into the medullary canal.

REFERENCES:
patent: 3793650 (1974-02-01), Ling et al.
patent: 4302855 (1981-12-01), Swanson
patent: 4523587 (1985-06-01), Frey
patent: 4753657 (1988-06-01), Lee et al.
Whiteside, Leo A., Amador, David and Russell, Kenneth, "The Effects of the Collar on Total Hip Femoral Component Subsidence", Jun. 1988, Clinical Orthopaedics and Related Research, pp. 120-126.
Pamphlet for Whiteside Total Hip System (Dow Corning Wright).
Pamphlet for Exeter Universal Hip System (Howmedica).

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