Surgery – Instruments – Electrical application
Reexamination Certificate
2005-11-08
2005-11-08
Cohen, Lee S. (Department: 3739)
Surgery
Instruments
Electrical application
C606S048000, C606S050000, C607S099000, C607S105000, C607S113000
Reexamination Certificate
active
06962589
ABSTRACT:
A method and apparatus for creating a virtual electrode to ablate bodily tissue. The apparatus includes an outer tube, a first electrode, an inner tube and a second electrode. The outer tube is fluidly connected to a source of conductive fluid and defines a proximal end and a distal end. The distal end includes an opening for delivering conductive fluid from the outer tube. The first electrode is disposed at the distal end of the outer tube for applying a current to conductive fluid delivered from the outer tube. The inner tube is coaxially received within the outer tube and is connected to a source of conductive fluid. The inner tube defines a proximal end and a distal end, with the distal end forming an opening for delivering conductive fluid from the inner tube. Finally, the second electrode is disposed at the distal end of the inner tube for applying a current to conductive fluid delivered from the inner tube. With this configuration, upon final assembly, the distal end of the outer tube is axially spaced from the distal end of the inner tube such that the first electrode is spaced from the second electrode. As a result, a bi-polar virtual electrode can be established.
REFERENCES:
patent: 5403311 (1995-04-01), Abele et al.
patent: 5431649 (1995-07-01), Mulier et al.
patent: 5433708 (1995-07-01), Nichols et al.
patent: 5458597 (1995-10-01), Edwards et al.
patent: 5536267 (1996-07-01), Edwards et al.
patent: 5542928 (1996-08-01), Evans et al.
patent: 5584872 (1996-12-01), LaFontaine et al.
patent: 5609151 (1997-03-01), Mulier
patent: 5653692 (1997-08-01), Masterson et al.
patent: 5683384 (1997-11-01), Gough et al.
patent: 5697281 (1997-12-01), Eggers et al.
patent: 5697536 (1997-12-01), Eggers et al.
patent: 5697909 (1997-12-01), Eggers et al.
patent: 5725524 (1998-03-01), Mulier et al.
patent: 5800482 (1998-09-01), Pomeranz et al.
patent: 5807395 (1998-09-01), Mulier et al.
patent: 5876398 (1999-03-01), Mulier et al.
patent: 5888198 (1999-03-01), Eggers et al.
patent: 5891095 (1999-04-01), Eggers et al.
patent: 5897553 (1999-04-01), Mulier et al.
patent: 5902328 (1999-05-01), LaFontaine et al.
patent: 5906613 (1999-05-01), Mulier et al.
patent: 5913854 (1999-06-01), Maguire et al.
patent: 5971983 (1999-10-01), Lesh
patent: 6071280 (2000-06-01), Edwards et al.
patent: 6706039 (2004-03-01), Mulier et al.
Hoey Michael F.
Mulier Peter M. J.
Berry Tom
Cohen Lee S.
Hohenshell Jeff
Medtronic Inc.
LandOfFree
Method and apparatus for creating a bi-polar virtual... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for creating a bi-polar virtual..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for creating a bi-polar virtual... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3473543