WO1997009927A3 - Method and apparatus for continuous, non-invasive monitoring of blood pressure parameters - Google Patents

Method and apparatus for continuous, non-invasive monitoring of blood pressure parameters Download PDF

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Publication number
WO1997009927A3
WO1997009927A3 PCT/US1996/014477 US9614477W WO9709927A3 WO 1997009927 A3 WO1997009927 A3 WO 1997009927A3 US 9614477 W US9614477 W US 9614477W WO 9709927 A3 WO9709927 A3 WO 9709927A3
Authority
WO
WIPO (PCT)
Prior art keywords
blood pressure
ear canal
parameters
pressure changes
continuous
Prior art date
Application number
PCT/US1996/014477
Other languages
French (fr)
Other versions
WO1997009927A2 (en
Inventor
James A Nolan
Trevor J Moody
Original Assignee
James A Nolan
Trevor J Moody
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 James A Nolan, Trevor J Moody filed Critical James A Nolan
Priority to EP96933769A priority Critical patent/EP0858288A2/en
Priority to JP9512037A priority patent/JPH11514898A/en
Priority to AU72375/96A priority patent/AU7237596A/en
Publication of WO1997009927A2 publication Critical patent/WO1997009927A2/en
Publication of WO1997009927A3 publication Critical patent/WO1997009927A3/en

Links

Classifications

    • 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
    • A61B1/227—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 for ears, i.e. otoscopes
    • A61B1/2275—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 for ears, i.e. otoscopes with controlled air pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • 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
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6814—Head
    • A61B5/6815—Ear
    • A61B5/6817—Ear canal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
    • 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
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/02108—Measuring pressure in heart or blood vessels from analysis of pulse wave characteristics

Abstract

Continuous, non-invasive method and apparatus for measuring blood pressure parameters and the like are disclosed. The apparatus includes an earpiece (10) for sealing an individual's ear canal so that arterial blood pressure changes adjacent the sealed ear canal (12) produce air pressure changes in the sealed ear canal (12). The apparatus further includes pressure sensing means (24) for measuring the air pressure changes in the sealed ear canal (12) and producing a signal related to the measured air pressure changes. In addition, the apparatus preferably includes processing means (52) for processing the signal to measure blood pressure parameters, as well as means for displaying (58) and/or recording (50) the processed signal. The method may be used to determine heart rate, blood pressure, cardiac output, stroke volume, cardiac function, circulatory function, and other parameters. To obtain absolute pressure readings, two sensors (24a, 24b), one in each ear, may be used to monitor pulse time transit delay.
PCT/US1996/014477 1995-09-11 1996-09-10 Method and apparatus for continuous, non-invasive monitoring of blood pressure parameters WO1997009927A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP96933769A EP0858288A2 (en) 1995-09-11 1996-09-10 Method and apparatus for continuous, non-invasive monitoring of blood pressure parameters
JP9512037A JPH11514898A (en) 1995-09-11 1996-09-10 Method and apparatus for continuous non-invasive monitoring of blood pressure parameters
AU72375/96A AU7237596A (en) 1995-09-11 1996-09-10 Method and apparatus for continuous, non-invasive monitoring of blood pressure parameters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US368295P 1995-09-11 1995-09-11
US60/003,682 1995-09-11

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/031,358 Continuation US6004274A (en) 1995-09-11 1998-02-26 Method and apparatus for continuous non-invasive monitoring of blood pressure parameters

Publications (2)

Publication Number Publication Date
WO1997009927A2 WO1997009927A2 (en) 1997-03-20
WO1997009927A3 true WO1997009927A3 (en) 1997-06-05

Family

ID=21707061

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/014477 WO1997009927A2 (en) 1995-09-11 1996-09-10 Method and apparatus for continuous, non-invasive monitoring of blood pressure parameters

Country Status (5)

Country Link
US (1) US6004274A (en)
EP (1) EP0858288A2 (en)
JP (1) JPH11514898A (en)
AU (1) AU7237596A (en)
WO (1) WO1997009927A2 (en)

Families Citing this family (110)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6283915B1 (en) * 1997-03-12 2001-09-04 Sarnoff Corporation Disposable in-the-ear monitoring instrument and method of manufacture
AUPP030997A0 (en) * 1997-11-10 1997-12-04 Clift, Vaughan Intra aural integrated vital signs monitor
IT1315206B1 (en) 1999-04-27 2003-02-03 Salvatore Romano METHOD AND APPARATUS FOR MEASURING HEART RATE.
AU2001221391A1 (en) 2000-01-26 2001-08-07 Vsm Medtech Ltd. Continuous blood pressure monitoring method and apparatus
US8100835B2 (en) * 2004-07-29 2012-01-24 Martin Baruch Arterial pulse decomposition analysis for vital signs determination
US6647368B2 (en) 2001-03-30 2003-11-11 Think-A-Move, Ltd. Sensor pair for detecting changes within a human ear and producing a signal corresponding to thought, movement, biological function and/or speech
US6671379B2 (en) 2001-03-30 2003-12-30 Think-A-Move, Ltd. Ear microphone apparatus and method
US6893401B2 (en) * 2001-07-27 2005-05-17 Vsm Medtech Ltd. Continuous non-invasive blood pressure monitoring method and apparatus
US20030220584A1 (en) * 2002-04-19 2003-11-27 Southwest Research Institute Headset for measuring physiological parameters
US6976963B2 (en) 2002-09-30 2005-12-20 Clift Vaughan L Apparatus and method for precision vital signs determination
US20050148882A1 (en) * 2004-01-06 2005-07-07 Triage Wireless, Incc. Vital signs monitor used for conditioning a patient's response
US7455643B1 (en) 2003-07-07 2008-11-25 Nellcor Puritan Bennett Ireland Continuous non-invasive blood pressure measurement apparatus and methods providing automatic recalibration
US7107088B2 (en) 2003-08-25 2006-09-12 Sarnoff Corporation Pulse oximetry methods and apparatus for use within an auditory canal
US20050059870A1 (en) * 2003-08-25 2005-03-17 Aceti John Gregory Processing methods and apparatus for monitoring physiological parameters using physiological characteristics present within an auditory canal
US7559894B2 (en) * 2003-09-18 2009-07-14 New Paradigm Concepts, LLC Multiparameter whole blood monitor and method
US20060287590A1 (en) * 2003-09-18 2006-12-21 Mceowen Edwin L Noninvasive vital sign measurement device
US20070135717A1 (en) * 2003-10-09 2007-06-14 Nippon Telegraph And Telephone Corp Organism information detection device and sphygmomanometer
US7452333B2 (en) * 2003-12-05 2008-11-18 Edwards Lifesciences Corporation Arterial pressure-based, automatic determination of a cardiovascular parameter
US7422562B2 (en) * 2003-12-05 2008-09-09 Edwards Lifesciences Real-time measurement of ventricular stroke volume variations by continuous arterial pulse contour analysis
US7220230B2 (en) * 2003-12-05 2007-05-22 Edwards Lifesciences Corporation Pressure-based system and method for determining cardiac stroke volume
US20050192514A1 (en) * 2004-03-01 2005-09-01 Kearby Gerald W. Audiological treatment system and methods of using the same
US20050209516A1 (en) * 2004-03-22 2005-09-22 Jacob Fraden Vital signs probe
US20050216199A1 (en) * 2004-03-26 2005-09-29 Triage Data Networks Cuffless blood-pressure monitor and accompanying web services interface
US20060009697A1 (en) * 2004-04-07 2006-01-12 Triage Wireless, Inc. Wireless, internet-based system for measuring vital signs from a plurality of patients in a hospital or medical clinic
US20050228297A1 (en) * 2004-04-07 2005-10-13 Banet Matthew J Wrist-worn System for Measuring Blood Pressure
US20050228300A1 (en) * 2004-04-07 2005-10-13 Triage Data Networks Cuffless blood-pressure monitor and accompanying wireless mobile device
US20060009698A1 (en) * 2004-04-07 2006-01-12 Triage Wireless, Inc. Hand-held monitor for measuring vital signs
US7179228B2 (en) * 2004-04-07 2007-02-20 Triage Wireless, Inc. Cuffless system for measuring blood pressure
US20050261598A1 (en) * 2004-04-07 2005-11-24 Triage Wireless, Inc. Patch sensor system for measuring vital signs
US20050228244A1 (en) * 2004-04-07 2005-10-13 Triage Wireless, Inc. Small-scale, vital-signs monitoring device, system and method
JP4896015B2 (en) * 2004-07-14 2012-03-14 エドワーズ ライフサイエンシーズ コーポレイション Real-time measurement of ventricular stroke volume variance by continuous arterial pulse contour analysis
US7635338B2 (en) 2004-07-21 2009-12-22 Sensometrics As Processing of continuous pressure-related signals derivable from a human or animal body or body cavity: methods, devices and systems
JP4401923B2 (en) * 2004-10-06 2010-01-20 日本電信電話株式会社 Blood pressure measurement device
US20060084878A1 (en) * 2004-10-18 2006-04-20 Triage Wireless, Inc. Personal computer-based vital signs monitor
US7658716B2 (en) * 2004-12-07 2010-02-09 Triage Wireless, Inc. Vital signs monitor using an optical ear-based module
US20060122520A1 (en) * 2004-12-07 2006-06-08 Dr. Matthew Banet Vital sign-monitoring system with multiple optical modules
US20060206014A1 (en) * 2005-03-13 2006-09-14 Nexense Ltd. Ear probe particularly for measuring various physiological conditions particularly blood pressure, temperature and/or respiration
DE102005029355A1 (en) * 2005-06-24 2006-12-28 CiS Institut für Mikrosensorik gGmbH Physiological measurements`, e.g. body temperature, monitoring arrangement, has sensors arranged so that transmission path between surface in body opening and respective sensor is approximately constant under prevailing operating conditions
RU2424764C2 (en) * 2005-06-30 2011-07-27 Конинклейке Филипс Электроникс Н.В. Technology of setting dimensions and installation of entotic sensor allowing calculation of non-invasive arterial pressure
US20090131761A1 (en) * 2005-06-30 2009-05-21 Koninklijke Philips Electronics N. V. Device providing spot-check of vital signs using an in-the-ear probe
US7983433B2 (en) 2005-11-08 2011-07-19 Think-A-Move, Ltd. Earset assembly
US20070185393A1 (en) * 2006-02-03 2007-08-09 Triage Wireless, Inc. System for measuring vital signs using an optical module featuring a green light source
RU2309668C1 (en) 2006-02-20 2007-11-10 Александр Сергеевич Парфенов Method and device for non-invasive measurement of function of endothelium
US7993275B2 (en) * 2006-05-25 2011-08-09 Sotera Wireless, Inc. Bilateral device, system and method for monitoring vital signs
US9149192B2 (en) * 2006-05-26 2015-10-06 Sotera Wireless, Inc. System for measuring vital signs using bilateral pulse transit time
WO2007147049A2 (en) 2006-06-14 2007-12-21 Think-A-Move, Ltd. Ear sensor assembly for speech processing
US8442607B2 (en) * 2006-09-07 2013-05-14 Sotera Wireless, Inc. Hand-held vital signs monitor
US20080082004A1 (en) * 2006-09-08 2008-04-03 Triage Wireless, Inc. Blood pressure monitor
US20080077020A1 (en) 2006-09-22 2008-03-27 Bam Labs, Inc. Method and apparatus for monitoring vital signs remotely
US20080103398A1 (en) * 2006-10-31 2008-05-01 Chin Ming Huang Pulse Taking and Spectral Analysis and Display Instrument
US8449469B2 (en) * 2006-11-10 2013-05-28 Sotera Wireless, Inc. Two-part patch sensor for monitoring vital signs
US8652040B2 (en) 2006-12-19 2014-02-18 Valencell, Inc. Telemetric apparatus for health and environmental monitoring
US8157730B2 (en) * 2006-12-19 2012-04-17 Valencell, Inc. Physiological and environmental monitoring systems and methods
US20080221461A1 (en) * 2007-03-05 2008-09-11 Triage Wireless, Inc. Vital sign monitor for cufflessly measuring blood pressure without using an external calibration
US8251903B2 (en) 2007-10-25 2012-08-28 Valencell, Inc. Noninvasive physiological analysis using excitation-sensor modules and related devices and methods
JP5513401B2 (en) 2007-11-27 2014-06-04 コーニンクレッカ フィリップス エヌ ヴェ Auditory heart monitor device and method
US20090270739A1 (en) * 2008-01-30 2009-10-29 Edwards Lifesciences Corporation Real-time detection of vascular conditions of a subject using arterial pressure waveform analysis
US8103029B2 (en) 2008-02-20 2012-01-24 Think-A-Move, Ltd. Earset assembly using acoustic waveguide
US8660799B2 (en) 2008-06-30 2014-02-25 Nellcor Puritan Bennett Ireland Processing and detecting baseline changes in signals
US8398556B2 (en) 2008-06-30 2013-03-19 Covidien Lp Systems and methods for non-invasive continuous blood pressure determination
US8506498B2 (en) 2008-07-15 2013-08-13 Nellcor Puritan Bennett Ireland Systems and methods using induced perturbation to determine physiological parameters
US9687161B2 (en) 2008-09-30 2017-06-27 Nellcor Puritan Bennett Ireland Systems and methods for maintaining blood pressure monitor calibration
US8532751B2 (en) 2008-09-30 2013-09-10 Covidien Lp Laser self-mixing sensors for biological sensing
US9314168B2 (en) 2008-09-30 2016-04-19 Nellcor Puritan Bennett Ireland Detecting sleep events using localized blood pressure changes
US9301697B2 (en) 2008-09-30 2016-04-05 Nellcor Puritan Bennett Ireland Systems and methods for recalibrating a non-invasive blood pressure monitor
US20100185084A1 (en) * 2009-01-22 2010-07-22 Siemens Medical Solutions Usa, Inc. Non-invasive Cardiac Characteristic Determination System
EP3127476A1 (en) 2009-02-25 2017-02-08 Valencell, Inc. Light-guiding devices and monitoring devices incorporating same
US9750462B2 (en) 2009-02-25 2017-09-05 Valencell, Inc. Monitoring apparatus and methods for measuring physiological and/or environmental conditions
US8788002B2 (en) 2009-02-25 2014-07-22 Valencell, Inc. Light-guiding devices and monitoring devices incorporating same
US8216136B2 (en) 2009-03-05 2012-07-10 Nellcor Puritan Bennett Llc Systems and methods for monitoring heart rate and blood pressure correlation
US8057400B2 (en) 2009-05-12 2011-11-15 Angiologix, Inc. System and method of measuring changes in arterial volume of a limb segment
US9198582B2 (en) 2009-06-30 2015-12-01 Nellcor Puritan Bennett Ireland Determining a characteristic physiological parameter
US8290730B2 (en) 2009-06-30 2012-10-16 Nellcor Puritan Bennett Ireland Systems and methods for assessing measurements in physiological monitoring devices
US8628477B2 (en) 2009-07-31 2014-01-14 Nellcor Puritan Bennett Ireland Systems and methods for non-invasive determination of blood pressure
EP2293589B1 (en) * 2009-08-28 2013-03-20 Nxp B.V. Electronic circuit for a headset and method thereof
US9220440B2 (en) 2009-09-21 2015-12-29 Nellcor Puritan Bennett Ireland Determining a characteristic respiration rate
US9066660B2 (en) 2009-09-29 2015-06-30 Nellcor Puritan Bennett Ireland Systems and methods for high-pass filtering a photoplethysmograph signal
US8463347B2 (en) 2009-09-30 2013-06-11 Nellcor Puritan Bennett Ireland Systems and methods for normalizing a plethysmograph signal for improved feature analysis
US9451887B2 (en) 2010-03-31 2016-09-27 Nellcor Puritan Bennett Ireland Systems and methods for measuring electromechanical delay of the heart
US8265321B2 (en) * 2010-04-08 2012-09-11 Sony Ericsson Mobile Communications Ab Method and apparatus for detecting a position of a pair of ear phones at a user
JP5585955B2 (en) * 2010-04-26 2014-09-10 学校法人 東洋大学 Jugular vein pressure calculation system and jugular vein pressure calculation method
US8898037B2 (en) 2010-04-28 2014-11-25 Nellcor Puritan Bennett Ireland Systems and methods for signal monitoring using Lissajous figures
US9408542B1 (en) 2010-07-22 2016-08-09 Masimo Corporation Non-invasive blood pressure measurement system
US8825428B2 (en) 2010-11-30 2014-09-02 Neilcor Puritan Bennett Ireland Methods and systems for recalibrating a blood pressure monitor with memory
US9259160B2 (en) 2010-12-01 2016-02-16 Nellcor Puritan Bennett Ireland Systems and methods for determining when to measure a physiological parameter
US9357934B2 (en) 2010-12-01 2016-06-07 Nellcor Puritan Bennett Ireland Systems and methods for physiological event marking
US8983103B2 (en) 2010-12-23 2015-03-17 Think-A-Move Ltd. Earpiece with hollow elongated member having a nonlinear portion
US8888701B2 (en) 2011-01-27 2014-11-18 Valencell, Inc. Apparatus and methods for monitoring physiological data during environmental interference
US9427191B2 (en) 2011-07-25 2016-08-30 Valencell, Inc. Apparatus and methods for estimating time-state physiological parameters
EP2739207B1 (en) 2011-08-02 2017-07-19 Valencell, Inc. Systems and methods for variable filter adjustment by heart rate metric feedback
US9060695B2 (en) 2011-11-30 2015-06-23 Covidien Lp Systems and methods for determining differential pulse transit time from the phase difference of two analog plethysmographs
US9332917B2 (en) 2012-02-22 2016-05-10 Siemens Medical Solutions Usa, Inc. System for non-invasive cardiac output determination
JP6059937B2 (en) * 2012-09-28 2017-01-11 ビフレステック株式会社 Specimen information detection apparatus, specimen information processing apparatus, specimen information detection method, and apparatus for detecting specimen information
US20140051939A1 (en) * 2012-08-17 2014-02-20 Rare Light, Inc. Obtaining physiological measurements using ear-located sensors
WO2014116924A1 (en) 2013-01-28 2014-07-31 Valencell, Inc. Physiological monitoring devices having sensing elements decoupled from body motion
US10251790B2 (en) 2013-06-28 2019-04-09 Nocira, Llc Method for external ear canal pressure regulation to alleviate disorder symptoms
US9039639B2 (en) 2013-06-28 2015-05-26 Gbs Ventures Llc External ear canal pressure regulation system
KR102112546B1 (en) * 2013-10-01 2020-05-19 삼성전자 주식회사 Apparatus and method for adjusting the air pressure inside of an ear
US9538921B2 (en) 2014-07-30 2017-01-10 Valencell, Inc. Physiological monitoring devices with adjustable signal analysis and interrogation power and monitoring methods using same
EP3151737B1 (en) 2014-08-06 2022-08-17 Valencell, Inc. Optical physiological sensor modules with reduced signal noise
US9794653B2 (en) 2014-09-27 2017-10-17 Valencell, Inc. Methods and apparatus for improving signal quality in wearable biometric monitoring devices
US20160242731A1 (en) * 2014-12-17 2016-08-25 Albrik Levick Gharibian Smart blood pressure measuring system (SBPMS)
US10251564B2 (en) 2015-03-31 2019-04-09 Siemens Healthcare Gmbh Thermal patient signal analysis
US10398321B2 (en) 2015-09-01 2019-09-03 Siemens Healthcare Gmbh Thermal patient signal analysis
US10610158B2 (en) 2015-10-23 2020-04-07 Valencell, Inc. Physiological monitoring devices and methods that identify subject activity type
US10945618B2 (en) 2015-10-23 2021-03-16 Valencell, Inc. Physiological monitoring devices and methods for noise reduction in physiological signals based on subject activity type
US10966662B2 (en) 2016-07-08 2021-04-06 Valencell, Inc. Motion-dependent averaging for physiological metric estimating systems and methods
US10760566B2 (en) 2016-07-22 2020-09-01 Nocira, Llc Magnetically driven pressure generator
EP3585335A4 (en) 2017-02-27 2020-12-30 Nocira, LLC Ear pumps
US11523202B2 (en) 2020-07-07 2022-12-06 Sonova Ag Hearing devices including biometric sensors and associated methods

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162325A (en) * 1984-07-27 1986-01-29 Electro Ident Syst Silkeborg Electromedical monitor system
GB2210168A (en) * 1986-09-19 1989-06-01 Marchbanks Dr Robert James Apparatus for measuring intracranial fluid pressure from the response of the ear drum to acoustic stimulation of an associated stapedial muscle
GB2284060A (en) * 1993-11-17 1995-05-24 Nigel Edgar Horton Portable apparatus for monitoring a body condition

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4928692A (en) * 1985-04-01 1990-05-29 Goodman David E Method and apparatus for detecting optical pulses
JP2664926B2 (en) * 1988-03-23 1997-10-22 コーリン電子株式会社 Blood pressure measurement device
US5632272A (en) * 1991-03-07 1997-05-27 Masimo Corporation Signal processing apparatus
US5213099A (en) * 1991-09-30 1993-05-25 The United States Of America As Represented By The Secretary Of The Air Force Ear canal pulse/oxygen saturation measuring device
DE4226972A1 (en) * 1992-08-14 1994-02-17 Vladimir Dr Blazek Non-invasive measurement of venous and arterial blood pressure in finger or toe - correlating slow increase from zero air pressure in cuff, caused by electronically-controlled pump, with change in venous signal from reflection or transmission photoplethysmograph sensor
US5673692A (en) * 1995-02-03 1997-10-07 Biosignals Ltd. Co. Single site, multi-variable patient monitor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162325A (en) * 1984-07-27 1986-01-29 Electro Ident Syst Silkeborg Electromedical monitor system
GB2210168A (en) * 1986-09-19 1989-06-01 Marchbanks Dr Robert James Apparatus for measuring intracranial fluid pressure from the response of the ear drum to acoustic stimulation of an associated stapedial muscle
GB2284060A (en) * 1993-11-17 1995-05-24 Nigel Edgar Horton Portable apparatus for monitoring a body condition

Also Published As

Publication number Publication date
EP0858288A2 (en) 1998-08-19
AU7237596A (en) 1997-04-01
WO1997009927A2 (en) 1997-03-20
US6004274A (en) 1999-12-21
JPH11514898A (en) 1999-12-21

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