07981031 is referenced by 36 patents and cites 252 patents.

A surgical access device includes a proximal frame of fixed construction and a plurality of tissue engaging blades connected to the frame. The plurality of tissue engaging blades may include a first blade that is rotatable, independent of other blades, about an axis that is oriented approximately parallel to a plane defined by the proximal frame.

Title
Surgical access devices and methods of minimally invasive surgery
Application Number
11/325621
Publication Number
7981031 (B2)
Application Date
January 4, 2006
Publication Date
July 19, 2011
Inventor
Nicholas Pavento
Walpole
MA, US
Thomas Runco
Canton
MA, US
Holly Brideau
West Roxbury
MA, US
Sara Dziedzic
Braintree
MA, US
Connie Marchek
Foxboro
MA, US
Anne Drzyzga
Taunton
MA, US
William Frasier
New Bedford
MA, US
Assignee
Depuy Spine
MA, US
IPC
A61B 1/32
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