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:
Apr. 16, 2019
Filed:
Mar. 13, 2015
Ethicon Endo-surgery, Inc., Cincinnati, OH (US);
Eitan T. Wiener, Cincinnati, OH (US);
Jeffrey L. Aldridge, Lebanon, OH (US);
Brian T. Noyes, Mason, OH (US);
James R. Giordano, Milford, OH (US);
Robert J. Beetel, III, Redwood City, CA (US);
Nathan J. Price, Dunlap, IL (US);
Matthew C. Miller, Cincinnati, OH (US);
Jeffrey P. Wiley, Milford, OH (US);
Daniel W. Price, Loveland, OH (US);
Robert L. Koch, Jr., Cincinnati, OH (US);
Joseph A. Brotz, Oshkosh, WI (US);
John E. Hein, Neenah, WI (US);
Ethicon LLC, Guaynabo, PR (US);
Abstract
A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.