WO2008142951A1 - 位置検出システムおよび位置検出方法 - Google Patents

位置検出システムおよび位置検出方法 Download PDF

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Publication number
WO2008142951A1
WO2008142951A1 PCT/JP2008/057961 JP2008057961W WO2008142951A1 WO 2008142951 A1 WO2008142951 A1 WO 2008142951A1 JP 2008057961 W JP2008057961 W JP 2008057961W WO 2008142951 A1 WO2008142951 A1 WO 2008142951A1
Authority
WO
WIPO (PCT)
Prior art keywords
marker
magnetic field
pair
position calculation
frequencies
Prior art date
Application number
PCT/JP2008/057961
Other languages
English (en)
French (fr)
Inventor
Akio Uchiyama
Ryoji Sato
Atsushi Kimura
Ryo Karasawa
Original Assignee
Olympus Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olympus Corporation filed Critical Olympus Corporation
Priority to US12/600,566 priority Critical patent/US20100164484A1/en
Priority to CN2008800166279A priority patent/CN101677750B/zh
Priority to EP08752052.4A priority patent/EP2149327A4/en
Publication of WO2008142951A1 publication Critical patent/WO2008142951A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/07—Endoradiosondes
    • A61B5/073—Intestinal transmitters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A61B1/00158—Holding or positioning arrangements using magnetic field
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/041—Capsule endoscopes for imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/045—Control thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/06—Devices, other than using radiation, for detecting or locating foreign bodies ; determining position of probes within or on the body of the patient
    • A61B5/061—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body
    • A61B5/062—Determining position of a probe within the body employing means separate from the probe, e.g. sensing internal probe position employing impedance electrodes on the surface of the body using magnetic field
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7232—Signal processing specially adapted for physiological signals or for diagnostic purposes involving compression of the physiological signal, e.g. to extend the signal recording period
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7235—Details of waveform analysis
    • A61B5/7253—Details of waveform analysis characterised by using transforms
    • A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Human Computer Interaction (AREA)
  • Endoscopes (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

　外部からの電力供給により交番磁界を発生する一のマーカと、該交番磁界の周波数と同一またはその近傍に共振周波数を有する共振回路を備えた他のマーカとがともに存在した場合であっても、一のマーカの位置または方向を正確に検出する。所定の周波数だけ離れた一組の第１の位置算出用周波数を有する第１の交番磁界を発生する第１のマーカ（４）と、一組の第１の位置算出用周波数に挟まれた略中心の周波数を共振周波数とする磁気誘導コイル（５）を搭載した第２のマーカ（３）と、その作動範囲の外部に配置され、第１の位置算出用周波数において磁界を検出する磁界検出部（１３）と、検出された磁界から一組の第１の位置算出用周波数を有する一組の第１の検出磁界成分の強度の加算値を抽出する抽出部（３０）と、抽出された加算値に基づいて第１のマーカ（４）の位置または方向を算出する位置方向解析部（２２）とを備える位置検出システム（１）を提供する。
PCT/JP2008/057961 2007-05-21 2008-04-24 位置検出システムおよび位置検出方法 WO2008142951A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/600,566 US20100164484A1 (en) 2007-05-21 2008-04-24 Position detection system and position detection method
CN2008800166279A CN101677750B (zh) 2007-05-21 2008-04-24 位置检测系统以及位置检测方法
EP08752052.4A EP2149327A4 (en) 2007-05-21 2008-04-24 Position detecting system and position detecting method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-134643 2007-05-21
JP2007134643A JP5269348B2 (ja) 2007-05-21 2007-05-21 位置検出システム及び位置検出システムの作動方法

Publications (1)

Publication Number Publication Date
WO2008142951A1 true WO2008142951A1 (ja) 2008-11-27

Family

ID=40031667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/057961 WO2008142951A1 (ja) 2007-05-21 2008-04-24 位置検出システムおよび位置検出方法

Country Status (5)

Country Link
US (1) US20100164484A1 (ja)
EP (1) EP2149327A4 (ja)
JP (1) JP5269348B2 (ja)
CN (1) CN101677750B (ja)
WO (1) WO2008142951A1 (ja)

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JP4902032B1 (ja) * 2011-03-17 2012-03-21 茂治郎 清水 管内移動体探知用の発信器、管内移動体および管内移動体探知システム

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CN103028321B (zh) * 2012-12-31 2014-01-22 锦州华冠环境科技实业公司 内成雾耐热脱硝喷枪
JP5932129B2 (ja) * 2013-06-07 2016-06-08 オリンパス株式会社 医療機器の位置検出装置、医療機器の位置検出装置の作動方法及び内視鏡装置
EP3150102A4 (en) * 2014-05-27 2018-01-24 Olympus Corporation Capsule endoscope apparatus
US10119837B2 (en) * 2016-07-06 2018-11-06 Biosense Webster (Israel) Ltd. Magnetic-field generating circuit for a tracking system
EP3875019A4 (en) 2018-11-02 2022-08-03 National Institute of Information and Communications Technology MEDICAL ASSISTANCE SYSTEM
CN114720918B (zh) * 2022-06-07 2022-09-06 华中师范大学 一种测量交变矢量磁场的方法及装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4902032B1 (ja) * 2011-03-17 2012-03-21 茂治郎 清水 管内移動体探知用の発信器、管内移動体および管内移動体探知システム

Also Published As

Publication number Publication date
JP5269348B2 (ja) 2013-08-21
EP2149327A1 (en) 2010-02-03
US20100164484A1 (en) 2010-07-01
JP2008284303A (ja) 2008-11-27
CN101677750A (zh) 2010-03-24
CN101677750B (zh) 2011-11-09
EP2149327A4 (en) 2017-12-13

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