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. 17, 2013
Filed:
Aug. 01, 2007
Junichi Kogiso, Tokyo, JP;
Junichi Kogiso, Tokyo, JP;
Olympus Medical Systems Corp., Tokyo, JP;
Abstract
A clip devicethat has a coil-shaped tubular bodythat is inserted through a curvable treatment instrument insertion channel of an endoscope, the tubular bodyincludes a proximal side coil (first coil)that has a spring constant per unit length of 15 N/mm to 500 N/mm and is disposed on the proximal end side of the tubular body; and a distal end side coilthat is connected to the distal end of the proximal side coil, has a greater inner diameter than the inner diameter of the proximal side coil, has a spring constant per unit length of 15 N/mm to 500 N/mm, and has a spring constant that differs from the spring constant of the proximal side coil, with the ratio of the spring constants of the proximal side coiland the distal end side coilis greater than 1.0 and less than or equal to 2.0. In accordance with the present invention, it is possible to provide a treatment instrument for an endoscope, in which even in a case where a strong compressive force is applied to the coil-shaped tubular body in a curved channel of endoscope, it is possible to suppress a plastic deformation of the tubular body due to a slippage of the coil wire.