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. 16, 2017
Filed:
Jan. 06, 2015
Ethicon Endo-surgery, Inc., Cincinnati, OH (US);
Galen C. Robertson, Apex, NC (US);
Kevin L. Houser, Springboro, OH (US);
Mark A. Neurohr, Newport, KY (US);
Ethicon Endo-Surgery, LLC, Los Frailes Industrial Park, Guaynabo, PR (US);
Abstract
A method of manufacturing an ultrasonic surgical instrument includes providing an ultrasonic waveguide comprising a blade implement at a distal end thereof, providing an ultrasonic transducer assembly, and providing a hollow sheath sized to receive the ultrasonic blade. The method further includes identifying a motionless node on the ultrasonic waveguide when the ultrasonic transducer assembly is driven at maximum current at a resonant frequency of the ultrasonic transducer assembly, and installing a seal on the waveguide at the motionless node, wherein the seal has an annular groove therein. Installing the seal comprises positioning a first annular seal portion at the motionless node on the waveguide such that a first axial seal portion and a second axial seal portion extend axially in opposite axial directions beyond the first annular seal portion. When compressed, the seal maintains a contact with the waveguide that is less than a contact with the hollow sheath.