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:
May. 08, 2012
Filed:
Aug. 22, 2008
Applicants:
Michael S. Butler, St. Charles, IL (US);
Brian D. Hartsell, Aurora, IL (US);
Inventors:
Michael S. Butler, St. Charles, IL (US);
Brian D. Hartsell, Aurora, IL (US);
Assignee:
Life Spine, Inc., Hoffman Estates, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 17/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spinal rod includes a rod tube formed of a biocompatible material, a spring rod formed of a biocompatible material and having a spring rod portion disposed in the rod tube, the spring rod portion axially movable within the rod tube whereby application of an axial force on the spring rod portion creates axial movement of the spring rod relative to the rod tube causing the spring rod and the rod tube to flex and arch, and a spacer ring radially disposed between the rod tube and the spring rod.