US2008193892A1PendingUtilityA1

Orthodontic screw-type implant

62
Assignee: FORSTER ROLFPriority: Feb 14, 2007Filed: Feb 13, 2008Published: Aug 14, 2008
Est. expiryFeb 14, 2027(~0.6 yrs left)· nominal 20-yr term from priority
Inventors:Rolf Forster
A61C 8/0096A61C 7/00
62
PatentIndex Score
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Claims

Abstract

The invention relates to an orthodontic screw implant comprising an elongated body, which has a thread for anchoring in a jaw bone and carries a polygon head having on an end face two slots which cross in a recess which has a diameter that is at least twice the width of the slots.

Claims

exact text as granted — not AI-modified
1 . An orthodontic screw implant comprising an elongated body, which has a thread for anchoring in a jaw bone and carries a polygon head having on an end face two slots which cross in a recess which has a diameter that is at least twice the width of the slots. 
   
   
       2 . A screw implant according to  claim 1 , wherein the diameter of the recess is at least 1 mm. 
   
   
       3 . A screw implant according to  claim 1 , wherein the recess is cylindrical. 
   
   
       4 . A screw implant according to  claim 1 , wherein the recess has a center that coincides with the center of the cross-shaped slots. 
   
   
       5 . A screw implant according to  claim 1 , wherein the width of the slots is 0.45 mm to 0.6 mm. 
   
   
       6 . A screw implant according to  claim 1 , wherein the width of the slots is 0.5 mm to 0.6 mm. 
   
   
       7 . A screw implant according to  claim 1 , wherein the recess is milled. 
   
   
       8 . A screw implant according to  claim 1 , wherein the thread has a self-grooving or self-cutting profile. 
   
   
       9 . A screw implant according to  claim 1 , wherein the head has a larger width than the threaded body. 
   
   
       10 . A screw implant according to  claim 1 , wherein the head has a polygonal or hexagonal cross-section. 
   
   
       11 . A screw implant according to  claim 1 , wherein between the end face and the thread is provided a threadless cylindrical or conical shank. 
   
   
       12 . A screw implant according to  claim 1 , wherein an annular groove is provided in the head for the insertion of an archwire. 
   
   
       13 . A screw implant according to  claim 1  with a wire bent at 90° arranged in the slots crossing in the recess.

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