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US 4,908,036 AGranted
Endoprosthesis
AssigneeWaldemar Link GmbH & Co. KG
InventorsHelmut D. Link, Arnold Keller
Life of this patent
Estimating the term…
Abstract
Endoprosthesis having a stem to be anchored in the bone and a separate bone support. The devices for holding the bone support on the shaft are designed such that the bone support is pivotable, preferably spherically mobile, so that it adjusts itself automatically to the position of the bore surface supporting it.
Claims9
Endoprosthesis for insertion into a bone cavity as a replacement of a bone part, comprising:
- a stem having anterior, posterior, medial and laceral sides, said stem including a lower portion which is to be anchored in the bone cavity and an upper portion which is to project out of the cavity;
- first holding means formed in the stem upper portion;
- and
- a separate bone support collar which extends transversely to the stem having a distal surface for engaging a resected surface of the bone and a proximal surface having second holding means formed therein for pivotally mounting the bone support collar to the first holding means of said stem upper portion, for the duration of the implantation.
1 more element
Dependencies are inferred from the claim text.