Femur shaft prosthesis with a proximal centering apparatus
AssigneeSulzer Orthopedics Inc.
InventorsLorenzo Spotorno, Werner Güttinger
Life of this patent
Estimating the term…
Abstract
In the figures, proximal centering apparatuses (4) for collar-less femur shaft prosthesis (1) which can be cemented in and which can be pushed from the medial onto the shaft (3) in the cemented region are shown. The centering apparatus (4) has at least in the medial region a centering wedge (6) which widens towards the proximal and which is connected via webs (7) to a clamping apparatus (8), with the clamping apparatus (8) being arranged in the cement-less region of the prosthesis neck (2) and being removable when the webs (7) are interrupted.
Claims10
Femur shaft prosthesis (1) which can be cemented in and which comprises a prosthesis neck (2), a shaft (3) and a proximal centering apparatus (4) which can be introduced with the shaft (3) into a bone cavity (5), characterized in that the shaft (3) is a collar-less shaft;
- in that the centering apparatus (4) can be pushed from the medial onto the shaft in the cemented region and has at least in the medial region a centering wedge (6) which widens towards the proximal and which is connected via webs (7) to a clamping apparatus (8), with the clamping apparatus (8) being arranged in the cement-less region of the prosthesis neck (2) and being removable when the webs (7) are interrupted.
Dependencies are inferred from the claim text.