Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shigeki Matsuo0
Date of Patent
May 24, 2016
Patent Application Number
11884340
Date Filed
February 10, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
In an endoscope flexible tube and an endoscope device of the present invention, an endoscope flexible tube which exhibits flexibility to be inserted into a body cavity includes a bending portion formed at a distal end side, a first flexible tube portion connected in series to a proximal end of the bending portion, and a second flexible tube portion connected in series to a proximal end of the first flexible tube portion. When the bending portion and the first flexible tube portion pass a flexed portion of the body cavity, a curvature radius of the first flexible tube portion which is passively bent under a predetermined force is set to be larger than a curvature radius of the bending portion in a maximum bent state.
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