Surgery – Instruments – Electrical application
Reexamination Certificate
2007-12-11
2007-12-11
Cohen, Lee S. (Department: 3739)
Surgery
Instruments
Electrical application
C606S038000, C606S041000, C606S048000, C606S050000
Reexamination Certificate
active
10228298
ABSTRACT:
An bipolar electrosurgical tool (10) for cauterizing or ablating tissue. The tool has a nose cone (12) which serves as a handle. A conductive shaft (14) extends from the nose cone. A tip assembly (18) with an active electrode (20) is mounted to the shaft. A circuit board (78) is mounted in the nose cone. Conductive traces that forming contact pads (96, 102) are formed on the circuit board. A web (108) formed from a single piece of elastomeric material is seated over the opening in which the printed circuit board is mounted to seal the opening shut. Integrally formed with the web are buttons (116, 118) that are in registration over the contact pads. The buttons can be depressed downwardly towards the contact pads. When a button is so depressed, a conductive landing pad (120) integral with the button closes the connection between the traces that form the contact pad. Thus, the tool of this invention is provided with switches. The circuit board also has two conductive traces (92, 104a) that run in parallel. If there is a leak into the nose cone, a connection is established across these traces and shorts out a resistor (105). The shorting out of this resistor provides a control console (22) with an indication that there is a leak. The electrode is formed from a single piece of tantalum. The electrode has a head formed with a hole (172) trough which fluid flows. The electrode is seated in a sleeve (136b) provided with a through bore (177) in registration with the electrode hole.
REFERENCES:
patent: 4682596 (1987-07-01), Bales et al.
patent: 4932952 (1990-06-01), Wojciechowicz, Jr.
patent: 5217478 (1993-06-01), Rexroth
patent: 5334193 (1994-08-01), Nardella
patent: 5385148 (1995-01-01), Lesh et al.
patent: 5683366 (1997-11-01), Eggers et al.
patent: 5697281 (1997-12-01), Eggers et al.
patent: 5697882 (1997-12-01), Eggers et al.
patent: 5697909 (1997-12-01), Eggers et al.
patent: 5712543 (1998-01-01), Sjostrom
patent: 5730742 (1998-03-01), Wojciechowicz
patent: 5807393 (1998-09-01), Williamson et al.
patent: 5810764 (1998-09-01), Eggers et al.
patent: 5843019 (1998-12-01), Eggers et al.
patent: 5902251 (1999-05-01), vanHooydonk
patent: 5902272 (1999-05-01), Eggers et al.
patent: 5954716 (1999-09-01), Sharkey et al.
patent: 6053912 (2000-04-01), Panescu et al.
patent: 6224592 (2001-05-01), Eggers et al.
patent: 6238391 (2001-05-01), Olsen et al.
patent: 6383177 (2002-05-01), Balle-Petersen et al.
Dyonics EP-1® Handpiece Membrane Switch, 5 Photographs, Mar. 2000.
Linvatec Handpiece Membrane Switch, 3 photographs, Mar. 2000.
Morgan Roy
Prakash Mani
Saravia Heber
Voges Jens
Cohen Lee S.
Flynn, Theil, Boutell & Tanis, P.C.
Stryker Corporation
LandOfFree
System and method for regulating an amount of thermal energy... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System and method for regulating an amount of thermal energy..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for regulating an amount of thermal energy... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3877412