CA2323732A1 - Optical coherence tomography apparatus - Google Patents

Optical coherence tomography apparatus Download PDF

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Publication number
CA2323732A1
CA2323732A1 CA002323732A CA2323732A CA2323732A1 CA 2323732 A1 CA2323732 A1 CA 2323732A1 CA 002323732 A CA002323732 A CA 002323732A CA 2323732 A CA2323732 A CA 2323732A CA 2323732 A1 CA2323732 A1 CA 2323732A1
Authority
CA
Canada
Prior art keywords
optical fiber
poles
throughhole
permanent magnets
fiber probe
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002323732A
Other languages
French (fr)
Other versions
CA2323732C (en
Inventor
Valentin Mikhailovich Gelikonov
Grigory Valentinovich Gelikonov
Natalia Dorofeevna Gladkova
Alexander Mikhailovich Sergeev
Nataliya Mikhailovna Shakhova
Felix Isaakovich Feldshtein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imalux Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA2535715A priority Critical patent/CA2535715C/en
Publication of CA2323732A1 publication Critical patent/CA2323732A1/en
Application granted granted Critical
Publication of CA2323732C publication Critical patent/CA2323732C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6846Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive
    • A61B5/6847Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be brought in contact with an internal body part, i.e. invasive mounted on an invasive device
    • A61B5/6852Catheters
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00064Constructional details of the endoscope body
    • A61B1/00071Insertion part of the endoscope body
    • A61B1/0008Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00096Optical elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00163Optical arrangements
    • A61B1/00172Optical arrangements with means for scanning
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00163Optical arrangements
    • A61B1/00174Optical arrangements characterised by the viewing angles
    • A61B1/00177Optical arrangements characterised by the viewing angles for 90 degrees side-viewing
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/00163Optical arrangements
    • A61B1/00174Optical arrangements characterised by the viewing angles
    • A61B1/00183Optical arrangements characterised by the viewing angles for variable viewing angles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00Instruments 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
    • A61B1/005Flexible endoscopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0062Arrangements for scanning
    • A61B5/0066Optical coherence imaging
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00Measuring instruments characterised by the use of optical techniques
    • G01B9/02Interferometers
    • G01B9/02001Interferometers characterised by controlling or generating intrinsic radiation properties
    • G01B9/02002Interferometers characterised by controlling or generating intrinsic radiation properties using two or more frequencies
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00Measuring instruments characterised by the use of optical techniques
    • G01B9/02Interferometers
    • G01B9/02049Interferometers characterised by particular mechanical design details
    • G01B9/0205Interferometers characterised by particular mechanical design details of probe head
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00Measuring instruments characterised by the use of optical techniques
    • G01B9/02Interferometers
    • G01B9/0209Low-coherence interferometers
    • G01B9/02091Tomographic interferometers, e.g. based on optical coherence
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00Measuring instruments characterised by the use of optical techniques
    • G01B9/04Measuring microscopes
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10Scanning systems
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/65Spatial scanning object beam

Abstract

The present invention relates to the analysis of internal structures of objects using optical means. A moving part of a lateral scanner placed in a sampling arm of an interferometer is arranged comprising a current conductor, which envelopes a magnetic system in the area of one of its poles and an optical fiber; which is rigidly fastened to the current conductor. The optical fiber serves as a flexible cantilever, allowing for minimizing the dimensions of the optical fiber probe.
Constructing the magnetic system as two permanent magnets which are aligned at their analogous poles, and placing the optical fiber in a throughhole, the throughhole being formed by facing grooves made in said analogous poles of said permanent magnets, ensure optimization of the design of the optical fiber probe. The optical fiber probe is placed at the distal end of an instrumental channel of an endoscope or borescope.
CA002323732A 1998-03-06 1999-02-09 Optical coherence tomography apparatus Expired - Fee Related CA2323732C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2535715A CA2535715C (en) 1998-03-06 1999-02-09 Optical coherence tomography apparatus, optical fiber lateral scanner and a method for studying biological tissues in vivo

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU98104238/14A RU2148378C1 (en) 1998-03-06 1998-03-06 Device for performing optic coherent tomography, optic fiber scanning device and method for diagnosing biological tissue in vivo
RU98104238 1998-03-06
PCT/RU1999/000034 WO1999045338A1 (en) 1998-03-06 1999-02-09 Optical coherent tomography apparatus, fiberoptic lateral scanner and method for studying biological tissues in vivo

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2535715A Division CA2535715C (en) 1998-03-06 1999-02-09 Optical coherence tomography apparatus, optical fiber lateral scanner and a method for studying biological tissues in vivo

Publications (2)

Publication Number Publication Date
CA2323732A1 true CA2323732A1 (en) 1999-09-10
CA2323732C CA2323732C (en) 2006-12-12

Family

ID=20203105

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002323732A Expired - Fee Related CA2323732C (en) 1998-03-06 1999-02-09 Optical coherence tomography apparatus

Country Status (7)

Country Link
US (3) US6608684B1 (en)
EP (1) EP1077360B1 (en)
JP (1) JP3930249B2 (en)
CA (1) CA2323732C (en)
DE (1) DE69941428D1 (en)
RU (1) RU2148378C1 (en)
WO (1) WO1999045338A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111707860A (en) * 2020-07-15 2020-09-25 东北电力大学 Sensitive element of optical fiber voltage sensor

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