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:
Jun. 25, 1991
Filed:
Apr. 18, 1990
Walter Durr, Remchingen, DE;
Axel Kirsch, D-7024 Filderstadt, DE;
Other;
Eberle Medizintechnische Elemente GmbH, both of, DE;
Abstract
An implant for an individual tooth including a metal implant post having a fastening head for receiving the removable denture, the implant post being mounted in a metal spacing element which is threaded in a basic structure that is implantable in the tooth. To hold the spacing element in a fixed, non-twisting and rotatable position, the element is composed of a base portion having a first threaded portion which is received in the basic structure and a second threaded portion of a pitch less than the first portion, which receives a ring element that is threaded thereon and has a shoulder for engaging an upper edge of the basic structure to form a locking arrangement. The invention also is directed to a tool having concentric sleeves which move relative to one another with the inner sleeve having slots for receiving lugs on the base element and the outer sleeve having lugs or projections to be received in the slots on the ring so that the ring can be rotated relative to the base element, which is held by the inner sleeve.