The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 18, 1990
Filed:
Jun. 10, 1988
Mecron medizinische Produkte GmbH, Berlin, DE;
Abstract
An endoprosthesis is equipped with a collar and a prosthesis shaft and is adapted to be anchored longitudinally in a bone without the use of cement. A hip endoprosthesis can be constructed for anchorage in the proximal femur, in which the prosthesis shaft is composed of a plurality of parallel interconnected thin plates which are configured as plate-shaped partial faces and which have peripheral cutting edges which face away from the prosthesis collar. A tibial plateau prosthesis can be similary constructed, and includes a tibial plateau and a supporting structure formed of thin plates which extend in a common direction and which are interconnected. Both types of prosthesis can be driven into the bone without destruction of existing bone tissue and without removal of spongiosa. A shaft structure is employed which ensures the firmest possible anchorage in the medullary space, with a porous surface being provided to facilitate the in-growth of spongy material to thereby increase the strength of the anchorage of the prosthesis shaft.