公开(公告)号：US20200099320A1

公开(公告)日：2020-03-26

申请号：US16697639

申请日：2019-11-27

Applicant: OLYMPUS CORPORATION

Inventor： Yoshitaka UMEMOTO ,  Takashi SUZUKI ,  Toshihiro KUMAGAI ,  Takuro ONDA

IPC: H02P6/06 ,  A61B1/00 ,  H02P6/24

Abstract: An apparatus includes a rotation body, a motor, a drive controller, a rotating speed detector, a rotation error determination circuit, and a filter. The rotation body is provided on an outer peripheral surface of an elongated insertion section and configured to be rotatable around a longitudinal axis. The motor rotates the rotation body. The drive controller controls driving of the motor. The rotating speed detector detects a rotating speed of the motor based on an encoder signal output from an encoder. The rotation error determination circuit determines an error in rotation of the rotation body based on the detected rotating speed. The filter passes, as the encoder signal, only a signal having a frequency, outside a frequency band of a high-frequency signal of a high-frequency treatment instrument, of signals input to the rotating speed detector.

公开(公告)号：US20160242625A1

公开(公告)日：2016-08-25

申请号：US15143875

申请日：2016-05-02

Applicant: OLYMPUS CORPORATION

Inventor： Toshihiro KUMAGAI ,  Hidenobu KUBO

IPC: A61B1/00 ,  A61B1/04

CPC classification number: A61B1/00009 ,  A61B1/00006 ,  A61B1/00045 ,  A61B1/00066 ,  A61B1/0008 ,  A61B1/00147 ,  A61B1/04 ,  A61B5/068 ,  G01B7/02 ,  G02B23/24

Abstract: In an endoscope system that obtains a captured image inside of a body cavity by use of an insertion unit of an endoscope apparatus which is inserted into the body cavity of a subject, an oscillator outputs an oscillation pulse signal, and receives a reflected pulse signal. A transmission line is provided along the insertion unit near an envelope of the insertion unit, and transmits a pulse signal output from the oscillator. A time calculating unit and an insertion length calculating unit obtain a time difference between the oscillation pulse signal and the reflected pulse signal on the basis of the oscillation pulse signal output by the oscillator and the reflected pulse signal received by the oscillator, and calculate an insertion length of the insertion unit on the basis of the obtained time difference.

Abstract translation: 在通过使用插入到被检体的体腔内窥镜装置的插入单元来获取体腔内的拍摄图像的内窥镜系统中，振荡器输出振荡脉冲信号，并接收反射脉冲信号。 沿着插入单元在插入单元的封套附近设置传输线，并且传输从振荡器输出的脉冲信号。 时间计算单元和插入长度计算单元基于由振荡器输出的振荡脉冲信号和由振荡器接收的反射脉冲信号获得振荡脉冲信号和反射脉冲信号之间的时间差，并计算插入 基于获得的时间差来插入单元的长度。