DK0553187T3 - Måling af elektrisk impedans i organisk og biologisk materiale - Google Patents

Måling af elektrisk impedans i organisk og biologisk materiale

Info

Publication number
DK0553187T3
DK0553187T3 DK91918393T DK91918393T DK0553187T3 DK 0553187 T3 DK0553187 T3 DK 0553187T3 DK 91918393 T DK91918393 T DK 91918393T DK 91918393 T DK91918393 T DK 91918393T DK 0553187 T3 DK0553187 T3 DK 0553187T3
Authority
DK
Denmark
Prior art keywords
pct
measuring electrodes
measuring
control electrode
date apr
Prior art date
Application number
DK91918393T
Other languages
Danish (da)
English (en)
Inventor
Stig Ollmar
Original Assignee
Stiftelsen Ct Fir Oral Biolog
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 Stiftelsen Ct Fir Oral Biolog filed Critical Stiftelsen Ct Fir Oral Biolog
Application granted granted Critical
Publication of DK0553187T3 publication Critical patent/DK0553187T3/da

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531Measuring skin impedance
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/16Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring intraocular pressure, e.g. tonometers

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Dermatology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
DK91918393T 1990-10-18 1991-10-18 Måling af elektrisk impedans i organisk og biologisk materiale DK0553187T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9003336A SE466987B (sv) 1990-10-18 1990-10-18 Anordning foer djupselektiv icke-invasiv, lokal maetning av elektrisk impedans i organiska och biologiska material samt prob foer maetning av elektrisk impedans
PCT/SE1991/000703 WO1992006634A1 (en) 1990-10-18 1991-10-18 A device for measurement of electrical impedance of organic and biological materials

Publications (1)

Publication Number Publication Date
DK0553187T3 true DK0553187T3 (da) 1999-06-28

Family

ID=20380684

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91918393T DK0553187T3 (da) 1990-10-18 1991-10-18 Måling af elektrisk impedans i organisk og biologisk materiale

Country Status (15)

Country Link
US (1) US5353802A (fi)
EP (1) EP0553187B1 (fi)
JP (1) JP3320413B2 (fi)
KR (1) KR100201178B1 (fi)
AT (1) ATE167794T1 (fi)
AU (1) AU659111B2 (fi)
CA (1) CA2093922C (fi)
DE (1) DE69129698T2 (fi)
DK (1) DK0553187T3 (fi)
ES (1) ES2120419T3 (fi)
FI (1) FI110304B (fi)
HU (1) HU216496B (fi)
NO (1) NO307863B1 (fi)
SE (1) SE466987B (fi)
WO (1) WO1992006634A1 (fi)

Families Citing this family (137)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA948393B (en) * 1993-11-01 1995-06-26 Polartechnics Ltd Method and apparatus for tissue type recognition
US5947910A (en) 1994-01-14 1999-09-07 E-Z-Em, Inc. Extravasation detection technique
USRE38695E1 (en) * 1994-01-14 2005-02-08 E-Z-Em, Inc. Extravasation detection electrode patch
US5964703A (en) * 1994-01-14 1999-10-12 E-Z-Em, Inc. Extravasation detection electrode patch
DE69505799T2 (de) * 1994-03-11 1999-04-22 British Tech Group Elektrische impedanz-tomographie
SE9403344L (sv) * 1994-09-30 1996-03-31 Synectics Medical Ab Förfarande och anordning vid främst elektrogastrografi och elektrourografi
AUPM851694A0 (en) * 1994-09-30 1994-10-27 Barsamian, Sergei T New methods for diagnosis, detection of cell abnormalities and morphology of living systems
NO180024C (no) * 1994-10-11 1997-01-29 Oerjan G Martinsen Måling av fuktighet i hud
US5810742A (en) 1994-10-24 1998-09-22 Transcan Research & Development Co., Ltd. Tissue characterization based on impedance images and on impedance measurements
US6678552B2 (en) 1994-10-24 2004-01-13 Transscan Medical Ltd. Tissue characterization based on impedance images and on impedance measurements
US6560480B1 (en) 1994-10-24 2003-05-06 Transscan Medical Ltd. Localization of anomalies in tissue and guidance of invasive tools based on impedance imaging
EP0788329B1 (en) * 1994-10-24 2006-12-06 Mirabel Medical Systems Ltd. Impedance imaging devices and multi-element probe
WO1999039627A1 (en) 1998-02-04 1999-08-12 Dermal Therapy (Barbados) Inc. Method and apparatus for non-invasive determination of glucose in body fluids
US5994690A (en) * 1997-03-17 1999-11-30 Kulkarni; Manish D. Image enhancement in optical coherence tomography using deconvolution
US6002480A (en) * 1997-06-02 1999-12-14 Izatt; Joseph A. Depth-resolved spectroscopic optical coherence tomography
EP1007901B1 (en) 1997-06-02 2009-04-29 Joseph A. Izatt Doppler flow imaging using optical coherence tomography
DE69938250T2 (de) * 1998-09-11 2009-03-12 Joseph A. Pepper Pike Izatt Interferometer für optische kohärenzdomainreflektometrie und optische kohärenztomografie mittels nichtreziproken optischen elementen
EP1171030B1 (en) * 1999-04-20 2006-11-02 Nova Technology Corporation Method and apparatus for measuring relative hydration of a substrate
US7729756B2 (en) * 2000-01-18 2010-06-01 Siemens Aktiengesellschaft Measurement system for examining a section of tissue on a patient and the use of a measurement system of this type
US6735468B2 (en) 2000-02-02 2004-05-11 Massachusetts Institute Of Technology Arthroscopic impedance probe to detect cartilage degeneration
US6564079B1 (en) 2000-07-27 2003-05-13 Ckm Diagnostics, Inc. Electrode array and skin attachment system for noninvasive nerve location and imaging device
JP4840952B2 (ja) * 2000-09-19 2011-12-21 株式会社フィジオン 生体電気インピーダンス計測方法及び計測装置、並びに該計測装置を用いた健康指針管理アドバイス装置
CA2439822C (en) * 2001-03-06 2011-01-11 Pendragon Medical Ltd. Method and device for determining the concentration of a substance in body liquid
US7315767B2 (en) * 2001-03-06 2008-01-01 Solianis Holding Ag Impedance spectroscopy based systems and methods
US7112319B2 (en) 2001-04-06 2006-09-26 The Research Foundation Of The City University Of New York Identification, diagnosis, and treatment of neuropathologies, neurotoxicities, tumors, and brain and spinal cord injuries using microelectrodes with microvoltammetry
US20070026440A1 (en) * 2001-04-06 2007-02-01 Broderick Patricia A Identification, diagnosis, and treatment of neuropathologies, neurotoxicities, tumors, and brain and spinal cord injuries using electrodes with microvoltammetry
US6823212B2 (en) * 2001-06-13 2004-11-23 The Procter & Gamble Company Method and apparatus for measuring properties of a target surface
US7044911B2 (en) 2001-06-29 2006-05-16 Philometron, Inc. Gateway platform for biological monitoring and delivery of therapeutic compounds
EP1427332A1 (en) * 2001-08-24 2004-06-16 Glucosens, Inc. Biological signal sensor and device for recording biological signals incorporating the said sensor
US6788966B2 (en) 2001-10-22 2004-09-07 Transscan Medical Ltd. Diagnosis probe
US8187197B2 (en) * 2002-01-15 2012-05-29 Orsan Medical Technologies Ltd. Cerebral perfusion monitor
US7998080B2 (en) * 2002-01-15 2011-08-16 Orsan Medical Technologies Ltd. Method for monitoring blood flow to brain
US8211031B2 (en) * 2002-01-15 2012-07-03 Orsan Medical Technologies Ltd. Non-invasive intracranial monitor
US7169107B2 (en) * 2002-01-25 2007-01-30 Karen Jersey-Willuhn Conductivity reconstruction based on inverse finite element measurements in a tissue monitoring system
US7050847B2 (en) 2002-03-26 2006-05-23 Stig Ollmar Non-invasive in vivo determination of body fluid parameter
AU2003219491A1 (en) * 2002-04-04 2003-10-20 Transscan Medical Ltd. Impedance measurements on breast nipples
NO321659B1 (no) 2002-05-14 2006-06-19 Idex Asa Volumspesifikk karakterisering av menneskehud ved elektrisk immitans
US6922586B2 (en) * 2002-05-20 2005-07-26 Richard J. Davies Method and system for detecting electrophysiological changes in pre-cancerous and cancerous tissue
AU2002326098A1 (en) * 2002-09-04 2004-03-29 Pendragon Medical Ltd. Method and device for measuring glucose
DE60230824D1 (de) * 2002-09-24 2009-02-26 Solianis Holding Ag Vorrichtung zur messung von glukosekonzentrationen
FR2845264B1 (fr) * 2002-10-03 2005-01-07 Fabre Pierre Dermo Cosmetique Dispositif et procede de mesure directe de ph et d'etat d'oxydation
CA2444211C (en) 2002-10-11 2013-11-19 Dermal Therapy (Barbados) Inc. Determination of biological conditions using impedance measurements
SE0302746D0 (sv) * 2003-10-17 2003-10-17 Uppsala Laekarkonsult Ab Multielectrode
KR100580629B1 (ko) * 2003-11-17 2006-05-16 삼성전자주식회사 고주파 대역의 피부 임피던스 응답을 표현하는 피부임피던스 모델
US20070282180A1 (en) * 2003-11-27 2007-12-06 Andreas Caduff Techniques for Determining Glucose Levels
EP1694197B1 (en) * 2003-12-02 2011-11-02 Solianis Holding AG A device and method for measuring a property of living tissue
ES2582185T3 (es) 2004-02-05 2016-09-09 Dermal Devices Inc. Aparato para la medida de glucosa en sangre usando medidas de impedancia de tejido corporal sub-dérmico
FR2865921B1 (fr) * 2004-02-11 2007-06-01 Spinevision Dispositif d'exploration pour le suivi de la penetration d'un instrument dans une structure anatomique
US7297123B2 (en) * 2004-04-19 2007-11-20 Nova Technology Corporation Method and apparatus for accessing oral mucositis
US8200307B2 (en) * 2004-06-07 2012-06-12 Biovotion Ag Method and device for determining a parameter of living tissue
WO2006029034A2 (en) * 2004-09-02 2006-03-16 Philometron, Inc. Monitoring platform for detection of hypovolemia, hemorrhage and blood loss
US20060079774A1 (en) * 2004-10-08 2006-04-13 Wendell Anderson Microwave biopsy probe
US20110190772A1 (en) 2004-10-15 2011-08-04 Vahid Saadat Powered tissue modification devices and methods
US9247952B2 (en) 2004-10-15 2016-02-02 Amendia, Inc. Devices and methods for tissue access
US20100331883A1 (en) 2004-10-15 2010-12-30 Schmitz Gregory P Access and tissue modification systems and methods
US8613745B2 (en) 2004-10-15 2013-12-24 Baxano Surgical, Inc. Methods, systems and devices for carpal tunnel release
US7887538B2 (en) 2005-10-15 2011-02-15 Baxano, Inc. Methods and apparatus for tissue modification
US7857813B2 (en) 2006-08-29 2010-12-28 Baxano, Inc. Tissue access guidewire system and method
US8430881B2 (en) 2004-10-15 2013-04-30 Baxano, Inc. Mechanical tissue modification devices and methods
US8048080B2 (en) 2004-10-15 2011-11-01 Baxano, Inc. Flexible tissue rasp
US8257356B2 (en) 2004-10-15 2012-09-04 Baxano, Inc. Guidewire exchange systems to treat spinal stenosis
US8221397B2 (en) 2004-10-15 2012-07-17 Baxano, Inc. Devices and methods for tissue modification
US7959577B2 (en) 2007-09-06 2011-06-14 Baxano, Inc. Method, system, and apparatus for neural localization
US7738969B2 (en) 2004-10-15 2010-06-15 Baxano, Inc. Devices and methods for selective surgical removal of tissue
US9101386B2 (en) 2004-10-15 2015-08-11 Amendia, Inc. Devices and methods for treating tissue
US8062300B2 (en) 2006-05-04 2011-11-22 Baxano, Inc. Tissue removal with at least partially flexible devices
US20060095028A1 (en) 2004-10-15 2006-05-04 Baxano, Inc. Devices and methods for tissue access
US8192435B2 (en) 2004-10-15 2012-06-05 Baxano, Inc. Devices and methods for tissue modification
US7578819B2 (en) 2005-05-16 2009-08-25 Baxano, Inc. Spinal access and neural localization
US7938830B2 (en) 2004-10-15 2011-05-10 Baxano, Inc. Powered tissue modification devices and methods
US11013461B2 (en) 2004-12-20 2021-05-25 Ipventure, Inc. Method and apparatus for hydration level of a person
US8734341B2 (en) * 2004-12-20 2014-05-27 Ipventure, Inc. Method and apparatus to sense hydration level of a person
US10258278B2 (en) 2004-12-20 2019-04-16 Ipventure, Inc. Method and apparatus to sense hydration level of a person
US8118740B2 (en) 2004-12-20 2012-02-21 Ipventure, Inc. Moisture sensor for skin
US8202217B2 (en) * 2004-12-20 2012-06-19 Ip Venture, Inc. Healthcare base
US20080188757A1 (en) 2005-02-21 2008-08-07 Ave Eugenio Garza Sada #2501 Sur, Col. Tecnologic Optoelectronic Device For The Detection Of Uterine Cancer, Comprising A Self-Positioning Attachment
EP3287073A1 (en) 2005-07-01 2018-02-28 Impedimed Limited Monitoring system
EP1898784B1 (en) 2005-07-01 2016-05-18 Impedimed Limited Method and apparatus for performing impedance measurements
EP1919356B1 (en) * 2005-09-02 2012-06-13 The Procter & Gamble Company Methods for measuring moisture content of skin
MX2008003077A (es) * 2005-09-02 2008-03-19 Procter & Gamble Metodos para medir la humedad como un indicador de la salud del cuero cabelludo.
CN101252879A (zh) * 2005-09-02 2008-08-27 宝洁公司 有效的头皮健康状况预测器
CN101252880A (zh) * 2005-09-02 2008-08-27 宝洁公司 用于在零售点测定皮肤含水量的方法
EP1948017B1 (en) 2005-10-11 2014-04-02 Impedimed Limited Hydration status monitoring
US8062298B2 (en) 2005-10-15 2011-11-22 Baxano, Inc. Flexible tissue removal devices and methods
US8366712B2 (en) 2005-10-15 2013-02-05 Baxano, Inc. Multiple pathways for spinal nerve root decompression from a single access point
US8092456B2 (en) 2005-10-15 2012-01-10 Baxano, Inc. Multiple pathways for spinal nerve root decompression from a single access point
JP4947440B2 (ja) * 2005-11-10 2012-06-06 バイオボーション・アーゲー 身体組織中のグルコース・レベルを割り出すための装置
US9636035B2 (en) 2005-12-14 2017-05-02 Scibase Ab Medical apparatus for determination of biological conditions using impedance measurements
JP2009519765A (ja) * 2005-12-16 2009-05-21 バイエル・ヘルスケア・エルエルシー 組織中のグルコース−媒介性変化のin−vivo非−侵襲性生体電気インピーダンス解析
US8112293B2 (en) 2006-03-24 2012-02-07 Ipventure, Inc Medical monitoring system
MX2008012103A (es) * 2006-03-24 2008-12-17 Univ Utah Res Found Medicion del espesor de peliculas dielectricas en superficies.
JP4210953B2 (ja) * 2006-04-14 2009-01-21 ソニー株式会社 電界制御装置及び検出装置
KR101213157B1 (ko) * 2006-06-09 2012-12-17 삼성전자주식회사 피부 임피던스 측정 센서
KR100862287B1 (ko) * 2006-08-18 2008-10-13 삼성전자주식회사 피부 수화도 측정 장치 및 그 방법
KR100823304B1 (ko) * 2006-08-22 2008-04-18 삼성전자주식회사 피부 수화도 측정 장치 및 그 방법
US8388534B2 (en) * 2006-10-11 2013-03-05 Samsung Electronics Co., Ltd. Apparatus for providing skin care information by measuring skin moisture content and method and medium for the same
US7951144B2 (en) * 2007-01-19 2011-05-31 Mahajan Roop L Thermal and electrical conductivity probes and methods of making the same
KR100857180B1 (ko) * 2007-01-22 2008-09-05 삼성전자주식회사 전력 소비를 최소화하는 피부 수화도 측정 장치
WO2008128281A1 (en) 2007-04-20 2008-10-30 Impedimed Limited Monitoring system and probe
US8565850B2 (en) 2007-07-02 2013-10-22 Universitetet I Oslo Method and kit for sweat activity measurement
US20110046505A1 (en) 2007-08-09 2011-02-24 Impedimed Limited Impedance measurement process
US20090137925A1 (en) * 2007-11-23 2009-05-28 Divya Cantor Impedance Spectroscopy Cervix Scanning Apparatus and Method
US8192436B2 (en) 2007-12-07 2012-06-05 Baxano, Inc. Tissue modification devices
EP2249693A1 (en) * 2008-01-11 2010-11-17 Solianis Holding Ag A method and device for determining a property of living tissue
WO2009110470A1 (ja) * 2008-03-03 2009-09-11 国立大学法人 長崎大学 角膜経上皮電気抵抗値の測定方法
US8690769B2 (en) 2008-04-21 2014-04-08 Philometron, Inc. Metabolic energy monitoring system
US20110160554A1 (en) * 2008-06-18 2011-06-30 Alexander Megej Device and method for determining at least one characterizing parameter of multilayer body tissue
WO2010009093A2 (en) 2008-07-14 2010-01-21 Baxano, Inc Tissue modification devices
US8409206B2 (en) 2008-07-01 2013-04-02 Baxano, Inc. Tissue modification devices and methods
US9314253B2 (en) 2008-07-01 2016-04-19 Amendia, Inc. Tissue modification devices and methods
US8398641B2 (en) 2008-07-01 2013-03-19 Baxano, Inc. Tissue modification devices and methods
JP2012505012A (ja) * 2008-10-07 2012-03-01 オルサン メディカル テクノロジーズ リミテッド 急性脳卒中の診断
US20100191141A1 (en) * 2009-01-27 2010-07-29 Peter Aberg Method and apparatus for diagnosing a diseased condition in tissue of a subject
US8948838B2 (en) * 2009-01-27 2015-02-03 Scibase Ab Switch probe for multiple electrode measurement of impedance
JP5582619B2 (ja) 2009-03-13 2014-09-03 バクサノ,インク. フレキシブルな神経位置判定装置
WO2010118538A1 (en) 2009-04-17 2010-10-21 Solianis Holding Ag Wide band field response measurement for glucose determination
US9179856B2 (en) 2009-04-17 2015-11-10 Biovotion Ag Sensing device for body tissue properties
US8394102B2 (en) 2009-06-25 2013-03-12 Baxano, Inc. Surgical tools for treatment of spinal stenosis
EP2467707A4 (en) * 2009-08-21 2014-12-17 Proteus Digital Health Inc DEVICE AND METHOD FOR MEASURING BIOLOGICAL PARAMETERS
AU2010312305B2 (en) 2009-10-26 2014-01-16 Impedimed Limited Fluid level indicator determination
JP5755234B2 (ja) 2009-11-18 2015-07-29 インぺディメッド リミテッドImpedimed Limited 患者−電極間測定のための装置およびシステム
GEP20176628B (en) * 2010-01-22 2017-02-27 Sangamo Biosciences Inc Targeted genomic alteration
ES2372082B1 (es) * 2010-03-02 2013-01-30 Consejo Superior De Investigaciones Científicas (Csic) Sensor no invasivo para determinar características funcionales de la córnea y dispositivo que incluye dicho sensor.
US9075910B2 (en) 2010-03-11 2015-07-07 Philometron, Inc. Physiological monitor system for determining medication delivery and outcome
US9345411B2 (en) 2011-02-09 2016-05-24 Orsan Medical Technologies, Ltd. Devices and methods for monitoring cerebral hemodynamic conditions
WO2012118751A2 (en) * 2011-02-28 2012-09-07 Nervonix, Inc. Method and system for determining a location of nerve tissue in three-dimensional space
AU2012351988B2 (en) * 2011-12-14 2017-05-04 Impedimed Limited Devices, systems and methods for determining the relative spatial change in subsurface resistivities across frequencies in tissue
US10456060B2 (en) 2012-02-22 2019-10-29 Ghassan S. Kassab Devices for detecting organ contents using impedance and methods of using the same to provide various therapies
JP2015038425A (ja) * 2013-05-24 2015-02-26 直之 御法川 上皮細胞の異常度合を測定する装置
US10357180B2 (en) * 2014-01-16 2019-07-23 D.T.R. Dermal Therapy Research Inc. Health monitoring system
US11536707B2 (en) 2014-09-23 2022-12-27 Tearlab Research, Inc. Systems and methods for integration of microfluidic tear collection and lateral flow analysis of analytes of interest
JP2016220961A (ja) * 2015-05-29 2016-12-28 国立大学法人九州大学 皮膚抵抗測定装置
CN104970793B (zh) * 2015-06-27 2018-06-12 杭州永川科技有限公司 一种空间物理对比帧的磁感应电阻抗成像装置及方法
ES2616150B1 (es) * 2016-01-20 2019-08-13 Univ Valencia Politecnica Aparato y metodo de deteccion de dano producido por la miopatia del pectoral profundo en aves
WO2019223874A1 (en) 2018-05-24 2019-11-28 Scibase Ab Impedance measurement device
SE544094C2 (en) 2018-11-05 2021-12-21 Scibase Ab Medical device for analyzing epithelial barrier function using electrical impedance spectroscopy
US11365386B2 (en) 2019-05-03 2022-06-21 UNIVERSITé LAVAL Cellular behaviour monitoring device and method for monitoring changes in cellular behaviour

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2316326A1 (de) * 1972-05-08 1973-11-29 Siepem Fa Kombiniertes geraet zur hygiene des haares und zur gesichtspflege
IL65581A (en) * 1982-04-22 1985-12-31 Dan Atlas Electrical measuring system particularly useful for the non-invasive examination of biological tissue
JPH073444B2 (ja) * 1987-10-27 1995-01-18 株式会社日本システム研究所 導電性測定装置
JPH01126535A (ja) * 1987-11-12 1989-05-18 Kao Corp 皮膚水分含有量の測定方法および装置
US4951683A (en) * 1989-01-19 1990-08-28 Davis Jeffrey P Device for detecting keratoconjunctivitis sicca

Also Published As

Publication number Publication date
ES2120419T3 (es) 1998-11-01
NO307863B1 (no) 2000-06-13
HU9301109D0 (en) 1993-08-30
JP3320413B2 (ja) 2002-09-03
SE9003336D0 (sv) 1990-10-18
US5353802A (en) 1994-10-11
DE69129698D1 (de) 1998-08-06
DE69129698T2 (de) 1999-03-11
WO1992006634A1 (en) 1992-04-30
CA2093922A1 (en) 1992-04-19
SE466987B (sv) 1992-05-11
CA2093922C (en) 2001-07-31
FI931730A (fi) 1993-04-16
NO931415D0 (no) 1993-04-16
HUT66173A (en) 1994-09-28
AU659111B2 (en) 1995-05-11
FI931730A0 (fi) 1993-04-16
HU216496B (hu) 1999-07-28
KR100201178B1 (ko) 1999-06-15
FI110304B (fi) 2002-12-31
NO931415L (no) 1993-05-13
ATE167794T1 (de) 1998-07-15
EP0553187B1 (en) 1998-07-01
EP0553187A1 (en) 1993-08-04
AU8849991A (en) 1992-05-20
JPH06502323A (ja) 1994-03-17
SE9003336A (fi) 1992-04-19

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