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:
Jun. 14, 2011
Filed:
Oct. 31, 2007
James F. Marino, La Jolla, CA (US);
Corbett W. Stone, San Diego, CA (US);
Troy K. Christopher, San Diego, CA (US);
Jeffrey J. Blewett, San Diego, CA (US);
Brian S. Kelleher, Ramona, CA (US);
James F. Marino, La Jolla, CA (US);
Corbett W. Stone, San Diego, CA (US);
Troy K. Christopher, San Diego, CA (US);
Jeffrey J. Blewett, San Diego, CA (US);
Brian S. Kelleher, Ramona, CA (US);
NuVasive, Inc., San Diego, CA (US);
Abstract
An expandable tip cannula system, comprising: a hollow cannula shaft having a proximal end and a distal end; and an expandable tip mounted at the distal end of the hollow cannula shaft, the expandable tip comprising a plurality of generally-triangular shaped petals held together in a radially-inwardly tapered arrangement between adjacent petals, each petal comprising a nerve sensing electrode disposed therein.