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:
Sep. 22, 1998
Filed:
Apr. 04, 1997
David C Yates, West Chester, OH (US);
James W Voegele, Cincinnati, OH (US);
Jesse Kuhns, Cincinnati, OH (US);
Anil Nalagatla, West Carrollton, OH (US);
Warren P Williamson IV, Loveland, OH (US);
Steven H Mersch, Germantown, OH (US);
Martin Madden, Plainsboro, NJ (US);
Richard P Nuchols, Loveland, OH (US);
Ethicon Endo-Surgery, Inc., Cincinnati, OH (US);
Abstract
An improved electro surgical instrument is provided for cauterization and/or welding of tissue of varying impedances, thicknesses and vascularity especially in the performance of endoscopic procedures. The instrument compresses the tissue between one pole of a bipolar energy source located on one interfacing surface, and a second interfacing surface. A second pole is located on one of the two interfacing surfaces. In a preferred embodiment, the second pole is located on the same interfacing surface as the first pole and an insulator electrically isolates the two poles. A preferred application of the invention is in a cutting instrument wherein a hemostatic line is formed along a cut line using RF energy.