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. 18, 2004
Filed:
Jun. 20, 2001
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a bipolar high-frequency treatment tool for coagulating and incising the vital tissue, comprising a pair of jaws provided at a distal end portion of an elongated member such that they can be closed and opened between a closed position and an open position, an operation unit having a handle provided at a proximal end portion of the elongated member, the operation unit closing and opening the jaws when the handle is operated, a first electrode portion provided at one of the jaws, and a second electrode portion provided at the other of the jaws. When vital tissue is gripped between the jaws, the effective electrode surface of the second electrode portion, which is to be brought into contact with the vital tissue, is smaller than that of the second electrode portion.