The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 2016
Filed:
May. 21, 2014
Applicant:
Covidien Ag, Neuhausen am Rheinfall, CH;
Inventor:
Robert Behnke, Erie, CO (US);
Assignee:
COVIDIEN AG, Neuhausen am, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 18/12 (2006.01); A61B 17/00 (2006.01);
U.S. Cl.
CPC ...
A61B 18/1206 (2013.01); A61B 18/1233 (2013.01); A61B 2017/00119 (2013.01);
Abstract
A circuit for discharging stored energy in an electrosurgical generator includes a pulse width modulator for controlling a high voltage power supply, an error signal generating circuit configured for delivering an error signal as a difference between an output signal voltage and a feedback voltage generated by the high voltage power supply. The circuit further includes a switching circuit configured to switch in a load in parallel with an output of the high voltage power supply when the error signal is less than a first predetermined threshold to discharge the output.