Surgery – Instruments – Electrical application
Reexamination Certificate
2005-11-23
2010-02-23
Gibson, Roy D (Department: 3739)
Surgery
Instruments
Electrical application
C606S039000, C606S040000
Reexamination Certificate
active
07666182
ABSTRACT:
The invention relates to a high-frequency surgical apparatus in which, for the purpose of cutting and/or coagulating biological tissue by means of high-frequency current, a high-frequency generator having a first electrode and a second electrode forms a high-frequency circuit through the tissue being treated, with an electric arc being formed, said apparatus having a measuring device to detect DC voltage components forming in the high frequency circuit when the arc is formed, said DC voltage components being usable for controlling the high-frequency generator via a controlling device. The invention is characterized in that the measuring device has an arc-decoupling circuit which separates the DC voltage components in the positive half-cycle of the high-frequency AC voltage from the DC voltage components in the negative half-cycle of the high-frequency AC voltage and makes available at least one of the separated DC voltage components as a signal for subsequent processing in the controlling device. The invention also relates to a corresponding method of running such apparatus.
REFERENCES:
patent: 4500837 (1985-02-01), Shuey et al.
patent: 5133711 (1992-07-01), Hagen
patent: 5423810 (1995-06-01), Goble et al.
patent: 5849010 (1998-12-01), Wurzer et al.
patent: 5976128 (1999-11-01), Schilling et al.
patent: 2004/0230189 (2004-11-01), Keppel
patent: 0 391 233 (1990-10-01), None
patent: 0 709 065 (1996-05-01), None
Heinrich Martin
Klett Johannes
BOWA-electronic GmbH
Gibson Roy D
Patent Central LLC
Pendorf Stephen A.
LandOfFree
High-frequency surgical apparatus and a method for operating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High-frequency surgical apparatus and a method for operating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-frequency surgical apparatus and a method for operating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4213226