07079883 is referenced by 197 patents and cites 105 patents.

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.

Title
Nerve surveillance cannulae systems
Application Number
10/431619
Publication Number
7079883 (B2)
Application Date
May 7, 2003
Publication Date
July 18, 2006
Inventor
Brian S Kelleher
Ramona
CA, US
Jeffrey J Blewett
San Diego
CA, US
Troy K Christopher
San Diego
CA, US
Corbett W Stone
San Diego
CA, US
James F Marino
La Jolla
CA, US
Agent
Jonathan Spangler
Assignee
NuVaslve
CA, US
IPC
A61B 5/04
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