Enossal individual tooth implant and locking tool for use with such an implant

US5026285A · kind A · utility

Assignees

• Axel Kirsch · DE
• Eberle Medizintechnische Elemente GmbH · DE

Inventors

• Walter Durr · Remchingen, DE
• Axel Kirsch · Stuttgart, DE

Key dates

• Filing date: Apr 18, 1990
• Grant date: Jun 25, 1991
• Expiry date: Apr 18, 2010

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61C8/0069
• WIPO field: Medical technology
• WIPO sector: Instruments

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.