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:
Mar. 16, 2021
Filed:
Oct. 11, 2018
Applicant:
Wenzel Spine, Inc., Austin, TX (US);
Inventor:
Erik Emstad, Austin, TX (US);
Assignee:
WENZEL SPINE, INC., Austin, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/44 (2006.01); A61F 2/30 (2006.01); A61F 2/46 (2006.01);
U.S. Cl.
CPC ...
A61F 2/446 (2013.01); A61F 2/30771 (2013.01); A61F 2/447 (2013.01); A61F 2/4455 (2013.01); A61F 2/4611 (2013.01); A61F 2/4405 (2013.01); A61F 2/4603 (2013.01); A61F 2002/3085 (2013.01); A61F 2002/3093 (2013.01); A61F 2002/30224 (2013.01); A61F 2002/30515 (2013.01); A61F 2002/30538 (2013.01); A61F 2002/30545 (2013.01); A61F 2002/30556 (2013.01); A61F 2002/30593 (2013.01); A61F 2002/30904 (2013.01); A61F 2002/4615 (2013.01); A61F 2002/4627 (2013.01); A61F 2002/4629 (2013.01); A61F 2230/0067 (2013.01); A61F 2230/0069 (2013.01);
Abstract
An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.