US2015025580A1PendingUtilityA1

Closure for open-headed medical implant

58
Individually held — no corporate assignee on recordPriority: Dec 8, 2000Filed: Oct 8, 2014Published: Jan 22, 2015
Est. expiryDec 8, 2020(expired)· nominal 20-yr term from priority
Inventors:Roger P. Jackson
A61B 17/7032A61B 17/685A61B 2019/307A61B 17/7091A61B 2090/037A61B 17/7082A61B 17/686
58
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A closure for an open headed medical implant, such as a bone screw. The closure having a cylindrical body having an axis of rotation and also having a radially outer surface with a thread or other guide and advancement structure thereon. The body having a plurality of apertures that open onto a top surface of the body and that are parallel to but spaced from the axis of rotation. The closure also has a break-off head centrally attached by a neck to the top surface of the body.

Claims

exact text as granted — not AI-modified
1 - 10 . (canceled) 
     
     
         11 . A closure for operably closing a top portion of a rod receiving channel between two arms of a bone anchor, the closure comprising:
 a) a body with a radially outer surface that is threaded, a top surface, a bottom surface, a central bore that is threaded extending between the top surface and the bottom surface about a central axis, and a drive structure located on the top surface that is positioned between the central axis and the outer surface; and   b) a set screw with a radially outer surface that is continuously threaded from near a top surface to near a bottom surface thereof, the bottom surface configured to engage and lock a rod.   
     
     
         12 . The closure according to  claim 11 , wherein the set screw and the body of the closure are positioned between a pair of top surfaces of the two arms of the bone anchor, so as to provide a comparatively low profile with respect to the pair of top surfaces of the bone anchor arms. 
     
     
         13 . The closure according to  claim 11 , wherein the drive structure is a bore opening onto the top surface and being spaced from the central axis and the outer surface. 
     
     
         14 . The closure according to  claim 13 , wherein the closure comprises a plurality of drive structure bores, each being spaced from the central bore and outer surface. 
     
     
         15 . The closure according to  claim 11 , wherein the closure comprises a plurality of drive structures, each being spaced from the central bore and outer surface. 
     
     
         16 . The closure according to  claim 11 , wherein the set screw bottom surface is flat. 
     
     
         17 . The closure according to  claim 11 , wherein the set screw and the body of the closure do not extend above the bone anchor arms.

Join the waitlist — get patent alerts

Track US2015025580A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.