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:
May. 03, 2022
Filed:
Aug. 28, 2018
Ethicon Llc, Guaynabo, PR (US);
Cameron R. Nott, Loveland, OH (US);
Fergus P. Quigley, Mason, OH (US);
Alexander R. Cuti, Pittsburgh, PA (US);
Matthew S. Schneider, Blue Ash, OH (US);
Maxwell Rockman, Cincinnati, OH (US);
Gregory D. Bishop, Hamilton, OH (US);
Cilag GmbH International, Zug, CH;
Abstract
Various systems and methods for determining the state of an end effector of an ultrasonic surgical instrument are disclosed. A control circuit can be configured to measure a complex impedance of an ultrasonic electromechanical system including an ultrasonic blade and compare the measured complex impedance to reference complex impedance patterns that each correspond to a state of the end effector. Accordingly, the control circuit can further be configured to determine the state of the end effector according to which of the plurality of reference complex impedance patterns the measured complex impedance corresponds.