ZA935579B - Artefact suppression - Google Patents

Artefact suppression

Info

Publication number
ZA935579B
ZA935579B ZA935579A ZA935579A ZA935579B ZA 935579 B ZA935579 B ZA 935579B ZA 935579 A ZA935579 A ZA 935579A ZA 935579 A ZA935579 A ZA 935579A ZA 935579 B ZA935579 B ZA 935579B
Authority
ZA
South Africa
Prior art keywords
artefact suppression
artefact
suppression
Prior art date
Application number
ZA935579A
Inventor
Dawood Prof Parker
Original Assignee
Univ Swansea
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 Univ Swansea filed Critical Univ Swansea
Publication of ZA935579B publication Critical patent/ZA935579B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • 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
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02416—Detecting, measuring or recording pulse rate or heart rate using photoplethysmograph signals, e.g. generated by infrared radiation
    • 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
    • A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
    • A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
    • A61B5/7214—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts using signal cancellation, e.g. based on input of two identical physiological sensors spaced apart, or based on two signals derived from the same sensor, for different optical wavelengths
ZA935579A 1992-08-01 1993-08-02 Artefact suppression ZA935579B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929216431A GB9216431D0 (en) 1992-08-01 1992-08-01 Optical monitoring or measuring artefact suppression

Publications (1)

Publication Number Publication Date
ZA935579B true ZA935579B (en) 1994-02-02

Family

ID=10719722

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA935579A ZA935579B (en) 1992-08-01 1993-08-02 Artefact suppression

Country Status (4)

Country Link
AU (1) AU4719893A (en)
GB (1) GB9216431D0 (en)
WO (1) WO1994003102A1 (en)
ZA (1) ZA935579B (en)

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EP0658331B1 (en) * 1993-12-11 1996-10-02 Hewlett-Packard GmbH A method for detecting an irregular state in a non-invasive pulse oximeter system
JPH08317912A (en) * 1995-03-23 1996-12-03 Seiko Instr Inc Pulse rate meter
IL113333A (en) * 1995-04-11 2001-01-28 Yoav Paltieli Optical-fiber type endoscope
US5645060A (en) * 1995-06-14 1997-07-08 Nellcor Puritan Bennett Incorporated Method and apparatus for removing artifact and noise from pulse oximetry
AUPN740796A0 (en) * 1996-01-04 1996-01-25 Circuitry Systems Limited Biomedical data collection apparatus
DE19609410C2 (en) * 1996-03-04 2002-04-25 Biotronik Mess & Therapieg Device for determining blood oxygen saturation
DE59704665D1 (en) * 1996-04-01 2001-10-25 Linde Medical Sensors Ag Basel DETECTION OF INTERFERENCE SIGNALS IN PULSOXYMETRIC MEASUREMENT
FI962448A (en) * 1996-06-12 1997-12-13 Instrumentarium Oy Method, apparatus and sensor for the determination of fractional oxygen saturation
WO1998004903A1 (en) * 1996-07-26 1998-02-05 Kontron Instruments Ag Method of non-invasive determination of oxygen saturation in tissue in which blood is circulating
DE19647877C2 (en) * 1996-11-19 2000-06-15 Univ Ilmenau Tech Method and circuit arrangement for determining the oxygen saturation in the blood
EP1041923A1 (en) 1997-12-22 2000-10-11 BTG INTERNATIONAL LIMITED (Company No. 2664412) Artefact reduction in photoplethysmography
EP1094745B1 (en) 1998-07-04 2010-05-19 Whitland Research Limited Non-invasive measurement of blood analytes
EP1104254A2 (en) 1998-08-13 2001-06-06 Whitland Research Limited Optical device
IL138884A (en) 2000-10-05 2006-07-05 Conmed Corp Pulse oximeter and a method of its operation
IL145445A (en) 2001-09-13 2006-12-31 Conmed Corp Signal processing method and device for signal-to-noise improvement
DE60143115D1 (en) 2001-09-28 2010-11-04 Csem Ct Suisse Electronique Method and device for pulse measurement
RU2234242C2 (en) * 2002-03-19 2004-08-20 Федеральное государственное унитарное предприятие Научно-исследовательский институт "Полюс" Method for determining biological tissue condition
US7738935B1 (en) 2002-07-09 2010-06-15 Pacesetter, Inc. Methods and devices for reduction of motion-induced noise in pulse oximetry
US6997879B1 (en) 2002-07-09 2006-02-14 Pacesetter, Inc. Methods and devices for reduction of motion-induced noise in optical vascular plethysmography
US7277741B2 (en) * 2004-03-09 2007-10-02 Nellcor Puritan Bennett Incorporated Pulse oximetry motion artifact rejection using near infrared absorption by water
US7392075B2 (en) 2005-03-03 2008-06-24 Nellcor Puritan Bennett Incorporated Method for enhancing pulse oximetry calculations in the presence of correlated artifacts
GB2424270A (en) 2005-03-14 2006-09-20 Spectrum Medical Llp Optical monitoring of predetermined substances in blood
US7869850B2 (en) 2005-09-29 2011-01-11 Nellcor Puritan Bennett Llc Medical sensor for reducing motion artifacts and technique for using the same
US7904130B2 (en) 2005-09-29 2011-03-08 Nellcor Puritan Bennett Llc Medical sensor and technique for using the same
US8219170B2 (en) 2006-09-20 2012-07-10 Nellcor Puritan Bennett Llc System and method for practicing spectrophotometry using light emitting nanostructure devices
US7574245B2 (en) 2006-09-27 2009-08-11 Nellcor Puritan Bennett Llc Flexible medical sensor enclosure
US7922665B2 (en) 2006-09-28 2011-04-12 Nellcor Puritan Bennett Llc System and method for pulse rate calculation using a scheme for alternate weighting
WO2008042147A2 (en) * 2006-09-29 2008-04-10 Nellcor Puritan Bennett Llc Symmetric led array for pulse oximetry
US7684842B2 (en) 2006-09-29 2010-03-23 Nellcor Puritan Bennett Llc System and method for preventing sensor misuse
US8265724B2 (en) 2007-03-09 2012-09-11 Nellcor Puritan Bennett Llc Cancellation of light shunting
US8280469B2 (en) 2007-03-09 2012-10-02 Nellcor Puritan Bennett Llc Method for detection of aberrant tissue spectra
US8366613B2 (en) 2007-12-26 2013-02-05 Covidien Lp LED drive circuit for pulse oximetry and method for using same
US8750953B2 (en) 2008-02-19 2014-06-10 Covidien Lp Methods and systems for alerting practitioners to physiological conditions
USD626562S1 (en) 2008-06-30 2010-11-02 Nellcor Puritan Bennett Llc Triangular saturation pattern detection indicator for a patient monitor display panel
US9895068B2 (en) 2008-06-30 2018-02-20 Covidien Lp Pulse oximeter with wait-time indication
US8862194B2 (en) 2008-06-30 2014-10-14 Covidien Lp Method for improved oxygen saturation estimation in the presence of noise
US8930145B2 (en) 2010-07-28 2015-01-06 Covidien Lp Light focusing continuous wave photoacoustic spectroscopy and its applications to patient monitoring
SG184595A1 (en) 2011-03-25 2012-10-30 Nitto Denko Corp A method of measuring an artefact removed photoplethysmographic (ppg) signal and a measurement system
US9833146B2 (en) 2012-04-17 2017-12-05 Covidien Lp Surgical system and method of use of the same
FI126338B (en) 2013-05-15 2016-10-14 Pulseon Oy Portable heart rate monitor
WO2016166290A1 (en) * 2015-04-15 2016-10-20 Koninklijke Philips N.V. Optical laser speckle sensor for measuring a blood perfusion parameter
CN107847167B (en) * 2015-09-28 2019-04-05 皇家飞利浦有限公司 The method of the vital sign of vital sign sensors and measurement user
CN106248579A (en) * 2016-08-31 2016-12-21 马东阁 A kind of OLED blood testing equipment

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JPS5524004A (en) * 1978-06-22 1980-02-20 Minolta Camera Kk Oxymeter
EP0102816A3 (en) * 1982-09-02 1985-08-28 Nellcor Incorporated Pulse oximeter
US4819646A (en) * 1986-08-18 1989-04-11 Physio-Control Corporation Feedback-controlled method and apparatus for processing signals used in oximetry
JPS63252239A (en) * 1987-04-09 1988-10-19 Sumitomo Electric Ind Ltd Reflection type oxymeter
GB8719333D0 (en) * 1987-08-14 1987-09-23 Swansea University College Of Motion artefact rejection system
US4819752A (en) * 1987-10-02 1989-04-11 Datascope Corp. Blood constituent measuring device and method
US5190038A (en) * 1989-11-01 1993-03-02 Novametrix Medical Systems, Inc. Pulse oximeter with improved accuracy and response time
US5055671A (en) * 1990-10-03 1991-10-08 Spacelabs, Inc. Apparatus for detecting transducer movement using a first and second light detector

Also Published As

Publication number Publication date
WO1994003102A1 (en) 1994-02-17
AU4719893A (en) 1994-03-03
GB9216431D0 (en) 1992-09-16

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