06913579 is referenced by 381 patents and cites 159 patents.

An electrosurgical working end and method for obtaining a tissue sample for biopsy purposes, for example, from a patient's lung or a liver. The working end provides curved jaw members that are positioned on opposing sides of the targeted anatomic structure. The working end carries a slidable extension member that is laterally flexible with inner surfaced that slide over the jaw members to clamp tissue therebetween. As the extension member advances, the jaws compress the tissue just ahead of the advancing extension member to allow the laterally-outward portion of the extension member to ramp over the tissue while a cutting element contemporaneously cuts the tissue. By this means, the transected tissue margin is captured under high compression. The working end carries a bi-polar electrode arrangement that engages the just-transected medial tissue layers as well as surface layers to provides Rf current flow for tissue welding purposes that is described as a medial-to-surface bi-polar approach.

Title
Electrosurgical working end and method for obtaining tissue samples for biopsy
Application Number
10/136874
Publication Number
6913579 (B2)
Application Date
April 30, 2002
Publication Date
July 5, 2005
Inventor
John H Shadduck
Tiburon
CA, US
Rodney Perkins
Woodside
CA, US
Csaba Truckai
Saratoga
CA, US
Agent
Townsend & Townsend & Crew
Assignee
SurgRx
CA, US
IPC
A61B 018/18
A61B 010/00
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