Depuy International Limited

Graham Isaac

Thomas P Schmalzried

Andrew W Donn

Daniel J Berry

Brian Griffiths

Fiona Haig

This invention relates to an orthopaedic joint prosthesis implant kit (). The implant kit comprises a stem component () of an orthopaedic joint prosthesis which is intended for articulation with a mating component of the joint. The stem component has a distal end () and a proximal end (), and a neck part () at the proximal end, and is configured for fixation in a bone cavity-using bone cement material with the distal end within the cavity and the proximal end at the opening of the cavity, and with the neck part protruding from the cavity towards the mating component of the joint. The implant kit further comprises a positioning kit (), at least one spacer () for location between the wall of the cavity and the stem component at its proximal end, and a delivery device ().

Orthopaedic joint prosthesis implant kit

A cup assembly of an orthopaedic joint prosthesis comprises a cup-shaped component which is rotationally symmetrical about a polar axis, and which is hollow to receive a rotationally symmetrical head of an component of the joint prosthesis. The cup-shaped component has a groove in its outer surface which extends around the component in a plane which is approximately perpendicular to the polar axis. A spacer component comprises a plurality of spaced apart spacer elements which are connected by a spacer web. The spacer web, but not the spacer elements, can be fitted into the groove in the outer surface of the cup-shaped component.

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Huddersfield, United Kingdom

Graham Isaac