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:
Feb. 12, 2013
Filed:
Aug. 10, 2006
Mamoru Machiya, Saitama, JP;
Masayuki Oyatsu, Saitama, JP;
Haruo Akiba, Saitama, JP;
Shozo Iyama, Saitama, JP;
Atsushi Kanaki, Saitama, JP;
Hidefumi Akahane, Saitama, JP;
Mamoru Machiya, Saitama, JP;
Masayuki Oyatsu, Saitama, JP;
Haruo Akiba, Saitama, JP;
Shozo Iyama, Saitama, JP;
Atsushi Kanaki, Saitama, JP;
Hidefumi Akahane, Saitama, JP;
FUJINON Corporation, Saitama-shi, JP;
Abstract
A high-frequency treatment tool comprising: a flexible sheath to be inserted into a treatment tool insertion channel of an endoscope; a treatment tool body provided inside the flexible sheath and comprising: a flexible cord; and a high-frequency knife to which a high-frequency current is applied, formed to the front end of the flexible cord; and a hard cylinder having an electrical insulating property, inserted and fixed inside the flexible sheath, wherein the high-frequency knife comprises blade portions radially provided in its axial direction, each of the blade portions including an engaging part, and wherein, when the high-frequency knife is made to stick out from the hard cylinder, engaging parts of the blade portions abut against a rear end portion of the hard cylinder so that: the high-frequency knife is engaged with the hard cylinder; and communicating channels that communicate an inside and an outside of the flexible sheath are formed between the blade portions adjacent to each other.