Patent Number: 6,569,086

Title: Controllable bending endoscope

Abstract: An operational remote controller integrates a joystick for bending a bending portion of an inserted portion in an endoscope. A bending lever stands on the joystick. For every automatically returning of the bending lever to a neutral position, a CPU of the operational remote controller detects the neutral position and sets an insensitive band within a predetermined range of the neutral position. Thus, the insensitive band can be set within a relatively narrow range irrespective of variation of neutral positions. The CPU supplies positional information of the bending lever to a control circuit for controlling a motor drive circuit. The control circuit controls a motor drive circuit based on the supplied positional information, and the motor drive circuit drives a motor to bend the bending portion of the inserted portion.

Inventors: Motoki; Nobuyuki (Hachioji, JP), Ono; Mitsunobu (Tokyo, JP), Ishigami; Takakazu (Tama, JP), Fukuda; Hiroyuki (Hino, JP), Hayashi; Yoshihiro (Hachioji, JP), Murakami; Kenji (Yamato, JP), Shimoe; Yasufumi (Fukuyama, JP)

Assignee: Olympus Optical Co., Ltd.

International Classification: A61B 1/005 (20060101); A61B 001/00 ()

Expiration Date: 05/27/2020