MODULAR JOINT PROSTHESIS

A modular joint prosthesis for implantation in a body. A component adapted to be fixed to a long bone having an intramedullary canal includes an elongated male stem having a uniformly tapered outer surface. In order to accommodate the particular size of long bone to which the component is to be fixe...

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Bibliographic Details
Main Author VAN ZILE, RICHARD R
Format Patent
LanguageEnglish
French
Published 18.04.1995
Edition5
Subjects
BANDAGES, DRESSINGS OR ABSORBENT PADS
DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS
FILTERS IMPLANTABLE INTO BLOOD VESSELS
FIRST-AID KITS
FOMENTATION
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES
PROSTHESES
TREATMENT OR PROTECTION OF EYES OR EARS
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Summary:A modular joint prosthesis for implantation in a body. A component adapted to be fixed to a long bone having an intramedullary canal includes an elongated male stem having a uniformly tapered outer surface. In order to accommodate the particular size of long bone to which the component is to be fixed, a properly sized female stem is attached to the male stem before the component is fixed to the long bone. The female stem is adapted to be received in the intramedullary canal for fixation thereto, and has a uniformly tapered inner surface, the angle of the taper being substantially similar to the angle of taper of the outer surface of the male stem. As a result, the male stem and female stem become locked together when the inner surface of the female stem engages the outer surface of the male stem. The proper size of female stem is obtained by selecting it from a family of female stems having a graduated sequence of different external dimensions. Tools are also disclosed for disengaging the male stem from the female stem as well as for disengaging the female stem from the bone.
Bibliography:Application Number: CA19940616796