Arrangement comprising a spacer element for an implant

Arrangement comprising a spacer element for an implant, such a spacer element and a screwdriver for fastening the spacer element
USPTO Patent Full-Text and Image Database
Patent Number: 6,848,908
Publication date: February 1, 2005
Inventors: Bjorn; Goran (Onsala, SE); Jorneus; Lars (Frilles.ang.s, SE)
Assignee: Nobel Biocare AB (Goteborg, SE)
Appl. No.: 239057
Filed: January 7, 2003
PCT Filed: March 22, 2001
PCT NO: PCT/SE01/00627
371 Date: January 7, 2003
102(e) Date: January 7, 2003
PCT PUB.NO.: WO01/70127
PCT PUB. Date: September 27, 2001
Abstract
An arrangement including a spacer element operative to support a superstructure and including a first passage and a second passage. The second passage is operative to permit mechanical anchoring of the holder. A first screw is operative to screw the spacer element into an implant. During an initial stage of insertion the first passage is operative to receive the first screw such that a center axis of the first screw is inclined in relation to a direction of screwing of the first screw. During a final stage of insertion the first passage permits the first screw to tilt such that the center axis of the first screw substantially coincides with the direction of screwing. A holder is operative to hold the spacer element. The holder substantially prevents the first screw from leaving the position it has assumed during the final stage of insertion. A second screw is operative to screw the superstructure onto the spacer element.