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:
Nov. 15, 2011
Filed:
Jul. 15, 2009
James R. Giordano, Milford, OH (US);
Robert J. Beetel, Redwood City, CA (US);
Eitan T. Wiener, Cincinnati, OH (US);
Jeffrey D. Messerly, Cincinnati, OH (US);
Brian Dinardo, Cincinnati, OH (US);
Daniel J. Abbott, Loveland, OH (US);
James R. Giordano, Milford, OH (US);
Robert J. Beetel, Redwood City, CA (US);
Eitan T. Wiener, Cincinnati, OH (US);
Jeffrey D. Messerly, Cincinnati, OH (US);
Brian DiNardo, Cincinnati, OH (US);
Daniel J. Abbott, Loveland, OH (US);
Ethicon Endo-Surgery, Inc., Cincinnati, OH (US);
Abstract
Various embodiments are directed to an apparatus, system, and method for driving an end effector coupled to an ultrasonic transducer in a surgical instrument. The method comprises generating a first ultrasonic drive signal by a generator coupled to an ultrasonic drive system, actuating the ultrasonic transducer with the first ultrasonic drive signal for a first period, generating a second ultrasonic drive signal by the generator, and actuating the ultrasonic transducer with the second ultrasonic drive signal for a second period, subsequent to the first period. The first drive signal is different from the second drive signal over the respective first and second periods. The first and second drive signals define a step function waveform over the first and second periods. The apparatus comprises a generator configured to couple to an ultrasonic instrument. The system comprises a generator coupled to an ultrasonic instrument. The ultrasonic instrument comprises an ultrasonic drive system comprising an ultrasonic transducer coupled to a waveguide and an end effector coupled to the waveguide, and wherein the ultrasonic drive system is configured to resonate at a resonant frequency.