Title:
周辺組織の破壊が最小限で済む一様な電界を発生する電気外科的システム
Document Type and Number:
Japanese Patent JP2006517843
Kind Code:
A
Abstract:
The present invention is directed towards an electrosurgical cutting system. The system comprises an electrically conductive blade, having first and second blade surfaces. First and second insulators are affixed to the first and second blade surfaces, respectively. A blade edge, a region between the first and second blade surfaces, has an edge radius of curvature, which preferably is small. A source of pulsed electrical energy coupled to the electrically conductive blade provides a substantially uniform and highly enhanced electric field along a cutting portion of the blade edge. The system can also be comprised of a wire electrode. Despite the fact that its field is strongly enhanced around the apex, a uniform vapor cavity is formed and then ionized using an appropriately designed burst of pulses, preferably of alternating polarity.
Inventors:
Palanker, Daniel Bye
Bankov, Alexander
Bankov, Alexander
Application Number:
JP2006503559A
Publication Date:
August 03, 2006
Filing Date:
February 13, 2004
Export Citation:
Assignee:
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
International Classes:
A61B18/14; A61B18/18; A61N1/04; A61N1/36; A61L
Foreign References:
| WO1999032042A1 | 1999-07-01 | |||
| WO1999040858A1 | 1999-08-19 | |||
| WO2000054683A1 | 2000-09-21 |
Attorney, Agent or Firm:
Yoichi Oshima