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:
Aug. 17, 2021
Filed:
Jun. 08, 2017
Applicant:
Ethicon Llc, Guaynabo, PR (US);
Inventors:
David Ian Ruddenklau, Christchurch, NZ;
Paul Christopher Roberts, Cambridge, GB;
Alan Edward Green, Cambridge, GB;
Assignee:
Cilag GmbH International, Zug, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 18/12 (2006.01); A61B 17/00 (2006.01); A61B 18/00 (2006.01); A61B 18/14 (2006.01);
U.S. Cl.
CPC ...
A61B 18/12 (2013.01); A61B 18/1206 (2013.01); A61B 2017/00734 (2013.01); A61B 2018/00595 (2013.01); A61B 2018/00607 (2013.01); A61B 2018/00642 (2013.01); A61B 2018/00732 (2013.01); A61B 2018/00827 (2013.01); A61B 2018/00875 (2013.01); A61B 2018/00892 (2013.01); A61B 2018/1226 (2013.01); A61B 2018/1452 (2013.01);
Abstract
A medical device is described having a handle and an end effector coupled to the handle. The end effector has at least one electrode for providing electrical signals to a tissue or vessel to be treated. An RF drive circuit is provided for generating an RF drive signal that is applied to the end effector electrode. The RF drive circuit includes a resonant circuit and a frequency controller is used to vary the frequency of a signal passed through the resonant circuit in order to control the power supplied to the end effector electrode.