Benoist Girard Sas

Stryker Technologies Corporation

Graham Allan Gie

Andrew John Timperley

John Andrew Storer

Robin Sydney Mackwood Ling

Robin Sydney Ling

Philippe Lavieille

Donald W Howie

Denis Pichon

Franck Le Bon

Namal S Nawana

Pascal Collet

John A Storer

Andrew J Timperley

An acetabular rim cutter has an annular cutting face provided on a rotatable carrier. A coupler is provided for attaching the carrier to a rotational power source. A guide element is axially aligned with the cutting face to locate and align the cutting face on the acetabulum with which it is to be used. Preferably, the guide element is axially movable in relation to the cutting face and a resilient element is provided for biasing it axially away therefrom.

Acetabular rim cutter

A prosthetic fixing plate comprises a component to be located into the acetabulum prior to the insertion of a prosthetic ball joint cap. The plate has a closure wall adapted to close the wall or rim of the acetabulum across any discontinuity therein, and a locator is provided for locating said closure wall in place. The fixing plate can be supplied in various sizes and arrangements, the correct plate being chosen by the surgeon after close examination of X-ray photographs of the patient and through the use of a template which is used to determine the size and arrangement of the discontinuity and thus the correct size and arrangement of the plate to be used.

Prosthetic acetabulum fixing plate

A femoral component of a replacement hip joint is provided which has a stem for fixing in cement in a medullary cavity by cement and having a separate proximal component provided with a neck for a ball head. An attachment system is provided for securing the proximal component to the stem which allows selection of an infinite number of angularly displaced positions about a proximal/distal axis, and adapted to allow fixation of the two parts after insertion of the stem into the prepared medullary cavity and without causing torsional loads on the stem. The stem extends proximally to the level of the bone cut which allows the proximal component to rotate after the stem is implanted. If an infinite number of angularly displaced positions is not required, then a Vernier coupling system with a large member of positions can be used.

Femoral component

A device for plugging the medullary canal of a bone to prevent the passage of locating cement and for centralising or guiding the stem of a prosthesis comprising a main body portion adapted to engage the wall of the canal to act as a plug and having a centralising or guide opening to receive the stem of the prosthesis.

Plugging and centralized device for locating the stem of a prosthesis

A prosthesis provided with a device for guiding its stem in a bone cavity and in which it is to be attached by cement. The sleeve guiding device comprises a sleeve having an opening to receive the stem and locate the sleeve on the stem at a position at or towards its proximal end. The is dimensioned and adapted to locate the stem in a predetermined position within the cross-sectional area of the bore of the bone cavity.

Prosthesis with centralizer and centralizer for use therewith

A prosthesis provided with a stem for fixation with cement in a bone socket, the proximal portion of the stem being provided with a number of shaped projections which are dimensioned to contact the inner wall of the bone socket and to act to guide the proximal end of the stem therein.

Prosthesis construction

A device for use with an acetabular socket prosthesis which has an outer rim of predetermined size. The device comprises an outwardly extending removable location and/or sealing element adapted to surround the outer rim of said cup with which it is to be used during implantation thereof.

Growing community of inventors

Yeoford, United Kingdom

Graham Allan Gie