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:
Jan. 07, 2020
Filed:
Oct. 30, 2015
Medtronic Advanced Energy Llc, Minneapolis, MN (US);
David Hubelbank, Manchester, NH (US);
Jesse A. Smith, Portsmouth, NH (US);
Medtronic Advanced Energy LLC, Minneapolis, MN (US);
Abstract
An electrosurgical unit having detection circuitry for reducing radiofrequency leakage current in an electrosurgical unit. The electrosurgical unit includes a radiofrequency generator configured to generate electrosurgical energy, the radiofrequency generator including a detection circuit having a resistor ladder and an isolation transformer in electrical communication with the resistor ladder. The detection circuit is configured to detect a change in impedance across the isolation transformer and correlate the change in impedance to one of a plurality of predetermined energy thresholds.