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1. (WO2018221017) SELF-PROPELLING ENDOSCOPIC DEVICE AND CONTROL DEVICE THEREFOR

Pub. No.:    WO/2018/221017    International Application No.:    PCT/JP2018/014936
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Tue Apr 10 01:59:59 CEST 2018
IPC: A61B 1/00
G02B 23/24
Applicants: OLYMPUS CORPORATION
オリンパス株式会社
Inventors: UMEMOTO, Yoshitaka
梅本 義孝
SUZUKI, Takashi
鈴木 崇
KUMAGAI, Toshihiro
熊谷 俊宏
ONDA, Takuro
恩田 拓郎
Title: SELF-PROPELLING ENDOSCOPIC DEVICE AND CONTROL DEVICE THEREFOR
Abstract:
This endoscope (100) is provided with: a rotation speed detection unit (2032) which detects the rotation speed of a motor (112) on the basis of an encoder signal from an encoder (114); a rotation abnormality determination unit (2033) which determines whether or not the rotation of a rotation case (104) is abnormal according to the rotation speed detected by the rotation speed detection unit (2032); and an LPF (2031) provided directly in front of the rotation speed detection unit (2032), wherein, among signals input by the rotation speed detection unit (2032), the LPF only allows signals having frequencies outside of a frequency band of high-frequency signals of a high-frequency treatment tool (20) to pass through as encoder signals. When it is detected that the motor (112) is rotating even though the motor (112) has been controlled to stop, the rotation abnormality detection unit (2033) determines that the rotation of the rotation case (104) is abnormal.