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:
Dec. 20, 2022
Filed:
Feb. 12, 2019
Cilag Gmbh International, Zug, CH;
Foster B. Stulen, Mason, OH (US);
John B. Schulte, West Chester, OH (US);
Jeffrey L. Aldridge, Lebanon, OH (US);
Jeffery T. Kirk, Liberty Township, OH (US);
Randal T. Byrum, Mason, OH (US);
Douglas J. Turner, Cincinnati, OH (US);
John M. Sarley, Mason, OH (US);
David A. Witt, Maineville, OH (US);
William A. Olson, Lebanon, OH (US);
Kyle P. Moore, Milton, GA (US);
Cilag GmbH International, Zug, CH;
Abstract
A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade includes a recess region having a plurality of recesses. The recess region is tapered such that the cross-sectional area of the recess region decreases along the length of the recess region. The ultrasonic blade is also curved such that a central longitudinal axis of the ultrasonic blade extends along a curved path. A reference circuit is used to account for voltage drops of unknown values during operation of the surgical apparatus.