SE9102421D0 - En metod och en anordning foer att reducera den avstaandsberoende foerstaerkningsfaktorn vid maetning av stroemningsroerelser med en bildgivande laser- doppler teknik, i synnerhet vid maetning av blodperfusion genom en vaevnad - Google Patents

En metod och en anordning foer att reducera den avstaandsberoende foerstaerkningsfaktorn vid maetning av stroemningsroerelser med en bildgivande laser- doppler teknik, i synnerhet vid maetning av blodperfusion genom en vaevnad

Info

Publication number
SE9102421D0
SE9102421D0 SE9102421A SE9102421A SE9102421D0 SE 9102421 D0 SE9102421 D0 SE 9102421D0 SE 9102421 A SE9102421 A SE 9102421A SE 9102421 A SE9102421 A SE 9102421A SE 9102421 D0 SE9102421 D0 SE 9102421D0
Authority
SE
Sweden
Prior art keywords
saturation
pct
detector
blood perfusion
distancing
Prior art date
Application number
SE9102421A
Other languages
English (en)
Other versions
SE468925B (sv
SE9102421L (sv
Inventor
Gert Nilsson
Original Assignee
Gert Nilsson
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 Gert Nilsson filed Critical Gert Nilsson
Priority to SE9102421A priority Critical patent/SE468925B/sv
Publication of SE9102421D0 publication Critical patent/SE9102421D0/sv
Priority to EP92918657A priority patent/EP0555452B1/en
Priority to DE69206776T priority patent/DE69206776T2/de
Priority to PCT/SE1992/000570 priority patent/WO1993003667A1/en
Priority to US08/039,410 priority patent/US5361769A/en
Priority to JP5504259A priority patent/JPH06501641A/ja
Publication of SE9102421L publication Critical patent/SE9102421L/sv
Publication of SE468925B publication Critical patent/SE468925B/sv

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/26—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/026—Measuring blood flow
    • A61B5/0261—Measuring blood flow using optical means, e.g. infrared light

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Cardiology (AREA)
  • Physiology (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
SE9102421A 1991-08-22 1991-08-22 En metod och en anordning foer att reducera den avstaandsberoende foerstaerkningsfaktorn vid maetning av stroemningsroerelser med en bildgivande laser-doppler teknik, i synnerhet vid maetning av blodperfusion genom en vaevnad SE468925B (sv)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9102421A SE468925B (sv) 1991-08-22 1991-08-22 En metod och en anordning foer att reducera den avstaandsberoende foerstaerkningsfaktorn vid maetning av stroemningsroerelser med en bildgivande laser-doppler teknik, i synnerhet vid maetning av blodperfusion genom en vaevnad
EP92918657A EP0555452B1 (en) 1991-08-22 1992-08-21 A method and a system for reducing the distance-dependent amplification factor when measuring fluid flow movements with an image-producing laser-doppler technique
DE69206776T DE69206776T2 (de) 1991-08-22 1992-08-21 Verfahren und anordnung zur verminderung des abstandsabhängigen verstärkungsfaktores beim messen und darstellen von flüssigkeitsströmen mittels laser-doppler-technik
PCT/SE1992/000570 WO1993003667A1 (en) 1991-08-22 1992-08-21 A method and a system for reducing the distance-dependent amplification factor when measuring fluid flow movements with an image-producing laser-doppler technique
US08/039,410 US5361769A (en) 1991-08-22 1992-08-21 Method and a system for measuring fluid flow movements by a laser-doppler technique
JP5504259A JPH06501641A (ja) 1991-08-22 1992-08-21 画像形成レーザドップラー技術で流体の流れの動きを測定する際に距離依存の増幅率を縮小するための方法およびシステム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9102421A SE468925B (sv) 1991-08-22 1991-08-22 En metod och en anordning foer att reducera den avstaandsberoende foerstaerkningsfaktorn vid maetning av stroemningsroerelser med en bildgivande laser-doppler teknik, i synnerhet vid maetning av blodperfusion genom en vaevnad

Publications (3)

Publication Number Publication Date
SE9102421D0 true SE9102421D0 (sv) 1991-08-22
SE9102421L SE9102421L (sv) 1993-02-23
SE468925B SE468925B (sv) 1993-04-19

Family

ID=20383524

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9102421A SE468925B (sv) 1991-08-22 1991-08-22 En metod och en anordning foer att reducera den avstaandsberoende foerstaerkningsfaktorn vid maetning av stroemningsroerelser med en bildgivande laser-doppler teknik, i synnerhet vid maetning av blodperfusion genom en vaevnad

Country Status (6)

Country Link
US (1) US5361769A (sv)
EP (1) EP0555452B1 (sv)
JP (1) JPH06501641A (sv)
DE (1) DE69206776T2 (sv)
SE (1) SE468925B (sv)
WO (1) WO1993003667A1 (sv)

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DE4322043C2 (de) * 1993-07-02 1995-07-20 Heidelberg Engineering Optisch Verfahren und Gerät zur Messung der Fließgeschwindigkeit, insbesondere des Blutes
US5620000A (en) * 1993-07-02 1997-04-15 Heidelberg Engineering, Optische Messsysteme Gmbh Method and apparatus for measuring flow rate, particularly of blood
JP3313841B2 (ja) * 1993-09-24 2002-08-12 興和株式会社 血流測定装置
GB9411231D0 (en) * 1994-06-04 1994-07-27 Kellam Keith Laser doppler microscopy methods and instruments
US6032070A (en) * 1995-06-07 2000-02-29 University Of Arkansas Method and apparatus for detecting electro-magnetic reflection from biological tissue
EP0829726B1 (de) * 1996-09-05 2003-04-16 Robert Bosch Gmbh Verfahren und Vorrichtung zum Erfassen 3-dimensionaler Strömungsstrukturen
US5954658A (en) * 1997-03-21 1999-09-21 Gorti; Sridhar Method and apparatus for measuring blood flow at precise depths in tissue and skin
US6132380A (en) * 1998-09-16 2000-10-17 Massachusetts Institute Of Technology Method and apparatus for measuring perfusion of biological tissue by blood
AT409451B (de) * 1999-12-14 2002-08-26 Hoffmann La Roche Vorrichtung zur bestimmung der örtlichen verteilung einer messgrösse
US6996256B2 (en) * 2000-06-08 2006-02-07 Honeywell International Inc. Detection system and method using thermal image analysis
US7111980B2 (en) 2001-04-19 2006-09-26 Honeywell International Inc. System and method using thermal image analysis and slope threshold classification for polygraph testing
US6854879B2 (en) * 2001-04-19 2005-02-15 Honeywell International Inc. System and method using thermal image analysis for polygraph testing
US7128714B1 (en) 2003-12-24 2006-10-31 The United States Of America As Represented By The Secretary Of The Navy Non-contact waveform monitor
GB2413078C (en) 2004-01-08 2012-08-15 Dialog Devices Ltd A system or method for assessing a subject's pedalblood circulation.
SE0401004D0 (sv) * 2004-04-19 2004-04-19 Gert Nilsson Non-invasive method to monitor microcalculation
US7138905B2 (en) * 2004-11-18 2006-11-21 Honeywell International Inc. Controlled environment thermal image detection system and methods regarding same
US20070122344A1 (en) 2005-09-02 2007-05-31 University Of Rochester Medical Center Office Of Technology Transfer Intraoperative determination of nerve location
JP2007125144A (ja) * 2005-11-02 2007-05-24 Omega Wave Kk レーザー血流画像装置
US8838210B2 (en) * 2006-06-29 2014-09-16 AccuView, Inc. Scanned laser vein contrast enhancer using a single laser
US20080161744A1 (en) 2006-09-07 2008-07-03 University Of Rochester Medical Center Pre-And Intra-Operative Localization of Penile Sentinel Nodes
DE102007063626A1 (de) * 2007-04-19 2009-09-10 Carl Zeiss Surgical Gmbh Verfahren und Vorrichtung zum Darstellen eines Feldes eines Gehirns eines Patienten und Navigationssystem für Gehirnoperationen
DE102007048362B9 (de) * 2007-10-09 2017-08-17 Carl Zeiss Meditec Ag System und Verfahren zum Untersuchen eines Objekts
US8858787B2 (en) * 2007-10-22 2014-10-14 Baxter International Inc. Dialysis system having non-invasive fluid velocity sensing
US8406860B2 (en) 2008-01-25 2013-03-26 Novadaq Technologies Inc. Method for evaluating blush in myocardial tissue
US10219742B2 (en) 2008-04-14 2019-03-05 Novadaq Technologies ULC Locating and analyzing perforator flaps for plastic and reconstructive surgery
ES2671710T3 (es) 2008-05-02 2018-06-08 Novadaq Technologies ULC Métodos para la producción y uso de eritrocitos cargados con sustancias para la observación y el tratamiento de la hemodinámica microvascular
US10492671B2 (en) 2009-05-08 2019-12-03 Novadaq Technologies ULC Near infra red fluorescence imaging for visualization of blood vessels during endoscopic harvest
ES2375386B1 (es) * 2010-07-21 2012-09-27 Abengoa Solar New Technologies, S.A. Reflectómetro portátil y método de caracterización de espejos de centrales termosolares.
US10278585B2 (en) 2012-06-21 2019-05-07 Novadaq Technologies ULC Quantification and analysis of angiography and perfusion
KR102383056B1 (ko) * 2013-08-14 2022-04-05 페드라 테크놀로지 피티이 엘티디 혈관재생 평가를 위한 시스템 및 방법
CN107209118B (zh) 2014-09-29 2021-05-28 史赛克欧洲运营有限公司 在自体荧光存在下生物材料中目标荧光团的成像
EP3203902B1 (en) 2014-10-09 2021-07-07 Novadaq Technologies ULC Quantification of absolute blood flow in tissue using fluorescence-mediated photoplethysmography
CN107088071B (zh) * 2016-02-17 2021-10-15 松下知识产权经营株式会社 生物体信息检测装置
JP6931705B2 (ja) 2017-02-10 2021-09-08 ノバダック テクノロジーズ ユーエルシー オープンフィールドハンドヘルド蛍光イメージングシステムおよび方法
CN109247910B (zh) * 2017-07-12 2020-12-15 京东方科技集团股份有限公司 血管显示设备以及血管显示方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU608807B2 (en) * 1987-03-03 1991-04-18 Hitoshi Fujii Apparatus for monitoring bloodstream
GB8907101D0 (en) * 1989-03-29 1989-05-10 Nat Res Dev Blood flow determination
ATE135179T1 (de) * 1989-10-31 1996-03-15 Gert Nilsson Anordnung und verfahren zum messen und darstellen von flüssigkeitsströmen, insbesondere der blutströmung durch ein körperorgan
JP3021628B2 (ja) * 1990-11-27 2000-03-15 興和株式会社 血流測定装置

Also Published As

Publication number Publication date
EP0555452A1 (en) 1993-08-18
EP0555452B1 (en) 1995-12-13
DE69206776D1 (de) 1996-01-25
US5361769A (en) 1994-11-08
WO1993003667A1 (en) 1993-03-04
JPH06501641A (ja) 1994-02-24
SE468925B (sv) 1993-04-19
SE9102421L (sv) 1993-02-23
DE69206776T2 (de) 1996-05-30

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