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:
Dec. 06, 2011
Filed:
Mar. 28, 2007
Applicants:
Thomas Grotz, San Francisco, CA (US);
Rudy Pretti, Auburn, CA (US);
Inventors:
Thomas Grotz, San Francisco, CA (US);
Rudy Pretti, Auburn, CA (US);
Assignee:
CoAlign Innovations, Inc., Brisbane, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 2/44 (2006.01);
U.S. Cl.
CPC ...
Abstract
A selectively expanding spine cage has a minimized diameter in its unexpanded state that is smaller than the diameter of the neuroforamen through which it passes in the distracted spine. The cage conformably engages between vertebral bodies to effectively distract the disc space and rigidly fix the spine. Extendible members with multiple interfitting stages permit a relatively large range of distraction capability in a compact package.