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.

Date of Patent:
Mar. 17, 2020

Filed:

Mar. 03, 2016
Applicant:

Olympus Winter & Ibe Gmbh, Hamburg, DE;

Inventors:

Ilja Assmus, Werder, DE;

Stefan Schiddel, Potsdam, DE;

Andreas Karrasch, Berlin, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 18/12 (2006.01); H02M 7/48 (2007.01);
U.S. Cl.
CPC ...
A61B 18/1206 (2013.01); H02M 7/48 (2013.01); A61B 2018/126 (2013.01); A61B 2018/1286 (2013.01); H02M 2007/4818 (2013.01); Y02B 70/1441 (2013.01);
Abstract

An electrosurgical generator, which has a high-voltage DC power supply unit and a resonant circuit connected thereto. The resonant circuit has an output transformer, the primary winding of which is part of the resonant circuit and the secondary winding of which is connected to connections for an electrosurgical instrument. The resonant circuit is furthermore connected to an actuation circuit, which is configured to periodically emit actuation pulses for the purpose of exciting the resonant circuit using the resonant frequency thereof. The actuation circuit includes a synchronization unit, which is connected to the resonant circuit, and includes at least one gradient detector and is configured to synchronize actuation pulses with a reversal point of the voltage profile of the voltage in the resonant circuit.


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