Electrosurgical generator and system

Details Electrosurgical generator and system Electrosurgical generator and system

2011-08-23

2011-08-23

Cohen, Lee (Department: 3739)

Surgery

Instruments

Electrical application

C606S042000, C606S048000, C606S051000

Reexamination Certificate

active

08002769

ABSTRACT:
An electrosurgical system includes a generator for generating radio frequency power, and an electrosurgical instrument including at least three electrodes. The generator includes a radio frequency output stage having at least a pair of RF output lines, and a power supply coupled to the output stage for supplying power to the output stage. A controller is operable to limit the radio frequency output voltage developed across the output lines to at least a first predetermined threshold value to produce a cutting RF waveform, and a second threshold value to produce a coagulating RF waveform. In a combined mode, the controller delivers both cutting and coagulating waveforms by alternating discontinuously between the first and second threshold values to form a blended signal. The system also includes means for feeding the waveform to the three or more electrodes such that the cutting RF waveform is delivered between a first pair of the electrodes, and the coagulating waveform is delivered between a second pair of the electrodes.

REFERENCES:
patent: 3898991 (1975-08-01), Ikuno et al.
patent: 4116198 (1978-09-01), Roos
patent: 5160334 (1992-11-01), Billings et al.
patent: 5976132 (1999-11-01), Morris
patent: 6113596 (2000-09-01), Hooven et al.
patent: 6174309 (2001-01-01), Wrublewski et al.
patent: 6203542 (2001-03-01), Ellsberry et al.
patent: 6416509 (2002-07-01), Goble et al.
patent: 6679882 (2004-01-01), Kornerup
patent: 6966907 (2005-11-01), Goble
patent: 2003/0073990 (2003-04-01), Goble et al.
patent: 2004/0006340 (2004-01-01), Latterell et al.
patent: 199 43 792 (2001-02-01), None
patent: 0754 437 (1997-01-01), None
patent: 1 287 788 (2003-03-01), None
patent: 06-30949 (1994-02-01), None
patent: 09-10223 (1997-01-01), None
patent: 2000-135222 (2000-05-01), None
patent: 2002-325772 (2000-11-01), None
patent: 2003-500099 (2003-01-01), None
patent: WO 96/37156 (1996-11-01), None
patent: WO 98/38932 (1998-08-01), None
patent: WO 00/53112 (2000-09-01), None
patent: WO 00/71043 (2000-11-01), None
patent: WO 02/03874 (2002-01-01), None
Japanese Office Action dated Oct. 20, 2009 in related Japanese Patent Application No. 2006-505914 and English Translation thereof.
Office Action, mailed May 30, 2008, in U.S. Appl. No. 11/260,189, filed Oct. 28, 2005.
International Search Report in International Application No. PCT/GB2004/000917, Oct. 6, 2004.
Official Partial International Search Report in International Application No. PCT/GB2004/000917 (3 pages).
Search Report in UK Application No. GB 0305018.4, Jun. 19, 2003.
Office Action mailed Feb. 18, 2011, in related U.S. Appl. No. 11/882,887, filed Aug. 6, 2007.

Affiliated with

Also associated with

Rating

Electrosurgical generator and system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrosurgical generator and system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrosurgical generator and system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2679033