WO2009125349A3 - Multi-sensor apparatus and method for monitoring of circulatory parameters - Google Patents

Multi-sensor apparatus and method for monitoring of circulatory parameters Download PDF

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Publication number
WO2009125349A3
WO2009125349A3 PCT/IB2009/051469 IB2009051469W WO2009125349A3 WO 2009125349 A3 WO2009125349 A3 WO 2009125349A3 IB 2009051469 W IB2009051469 W IB 2009051469W WO 2009125349 A3 WO2009125349 A3 WO 2009125349A3
Authority
WO
WIPO (PCT)
Prior art keywords
microphone
monitoring
sensor apparatus
artery
data signal
Prior art date
Application number
PCT/IB2009/051469
Other languages
French (fr)
Other versions
WO2009125349A2 (en
Inventor
Ehud Baron
Amir Haiman
Original Assignee
Cardiosigns Ltd.
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 Cardiosigns Ltd. filed Critical Cardiosigns Ltd.
Publication of WO2009125349A2 publication Critical patent/WO2009125349A2/en
Publication of WO2009125349A3 publication Critical patent/WO2009125349A3/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
    • A61B5/02—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
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02208—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers using the Korotkoff method
    • 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
    • A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
    • 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
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A61B5/02225—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers using the oscillometric method
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4806—Sleep evaluation
    • A61B5/4818—Sleep apnoea
    • 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
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/681—Wristwatch-type devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/02—Stethoscopes
    • A61B7/04—Electric stethoscopes
    • A61B7/045—Detection of Korotkoff sounds
    • 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
    • A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
    • 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
    • A61B5/0285—Measuring or recording phase velocity of blood waves
    • 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
    • A61B5/0295—Measuring blood flow using plethysmography, i.e. measuring the variations in the volume of a body part as modified by the circulation of blood therethrough, e.g. impedance plethysmography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0535—Impedance plethysmography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/0816—Measuring devices for examining respiratory frequency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • 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
    • A61B5/7235—Details of waveform analysis
    • A61B5/7239—Details of waveform analysis using differentiation including higher order derivatives
    • 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
    • A61B5/7235—Details of waveform analysis
    • A61B5/7242—Details of waveform analysis using integration

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Physiology (AREA)
  • Acoustics & Sound (AREA)
  • Hematology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

A system for measuring blood circulation parameters in a patient, comprising: a) a pressing element; b) a contact microphone which is acoustically coupled to the patients body by the pressing element at a location adjacent to an artery, the microphone thereby producing a data signal indicative of blood circulation in the artery; and c) a controller which integrates in time the data signal from the microphone, thereby determining a blood pressure as a function of time, at least up to an unknown integration constant.
PCT/IB2009/051469 2008-04-10 2009-04-07 Multi-sensor apparatus and method for monitoring of circulatory parameters WO2009125349A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7105208P 2008-04-10 2008-04-10
US61/071,052 2008-04-10

Publications (2)

Publication Number Publication Date
WO2009125349A2 WO2009125349A2 (en) 2009-10-15
WO2009125349A3 true WO2009125349A3 (en) 2009-12-03

Family

ID=40886874

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/051469 WO2009125349A2 (en) 2008-04-10 2009-04-07 Multi-sensor apparatus and method for monitoring of circulatory parameters

Country Status (1)

Country Link
WO (1) WO2009125349A2 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPI20090099A1 (en) * 2009-07-31 2011-02-01 Cnr Consiglio Naz Delle Ric Erche EQUIPMENT FOR MEASURING THE SPEED OF PROPAGATION OF A PRESSORIAL WAVE IN THE ARTERIAL SYSTEM
CN101912259B (en) * 2010-08-06 2012-10-10 深圳瑞光康泰科技有限公司 Non-invasive blood pressure measuring device
WO2012117337A1 (en) * 2011-03-01 2012-09-07 Koninklijke Philips Electronics N.V. A method and device for positioning a doppler ultrasound transducer for blood flow measurement and a system for blood flow measurement
US20130060147A1 (en) * 2011-08-04 2013-03-07 Masimo Corporation Occlusive non-inflatable blood pressure device
GB2497079A (en) 2011-11-25 2013-06-05 Netscientific Ltd Medical monitoring and control systems for healthcare
JP5626943B2 (en) 2012-05-29 2014-11-19 国立大学法人高知大学 Arterial visualization device and arterial imaging device
US10278592B2 (en) 2013-12-09 2019-05-07 Samsung Electronics Co., Ltd. Modular sensor platform
KR20150067047A (en) * 2013-12-09 2015-06-17 삼성전자주식회사 Modular sensor platform
WO2015123175A1 (en) * 2014-02-14 2015-08-20 Global Nutrition & Health, Inc. Transcutaneous photoplethysmography
JP2014166561A (en) * 2014-04-23 2014-09-11 Seiko Epson Corp Sphygmomanometer
CN104127176A (en) * 2014-06-26 2014-11-05 北京信息科技大学 Portable blood pressure and pulse measuring instrument without inflation pump structure
US20160100765A1 (en) * 2014-10-10 2016-04-14 Koninkl Philips Nv Non-invasive blood pressure monitor and method of operating the same
CN105615857A (en) * 2014-10-27 2016-06-01 武光晨 Watch type sphygmomanometer
EP3419511A4 (en) * 2016-02-25 2019-10-23 Spry Health, Inc. Systems and methods for modified pulse transit time measurement
KR20170124943A (en) * 2016-05-03 2017-11-13 삼성전자주식회사 Apparatus and method for extracting cardiovascular characteristic
CN107872965B (en) * 2016-05-09 2021-08-06 倍灵科技有限公司 Wearable device for healthcare and method thereof
WO2017211869A1 (en) 2016-06-07 2017-12-14 Viewcare Technologies 1 Aps Method and system for measuring a central pulse wave velocity in a pregnant woman
US10722125B2 (en) * 2016-10-31 2020-07-28 Livemetric (Medical) S.A. Blood pressure signal acquisition using a pressure sensor array
KR102655738B1 (en) * 2016-12-27 2024-04-05 삼성전자주식회사 Touch type blood pressure measurement device
US11000193B2 (en) 2017-01-04 2021-05-11 Livemetric (Medical) S.A. Blood pressure measurement system using force resistive sensor array
KR20200005445A (en) * 2018-07-06 2020-01-15 삼성전자주식회사 Apparatus and method for measuring bio-information
EP3818930A4 (en) * 2018-07-06 2022-04-20 Samsung Electronics Co., Ltd. Biometric information measurement device and method
NL2023481B1 (en) * 2019-07-11 2021-02-03 Vivae Ip B V Blood pressure instrument
EP3766412A1 (en) * 2019-07-15 2021-01-20 Onera Technologies B.V. Cardiac pulse wave retrieval from an electrical signal
US20220133159A1 (en) * 2020-10-30 2022-05-05 The Regents Of The University Of Michigan Non-Invasive, Continuous, Accurate and Cuff-Less Measurement of Blood Pressure and Other Cardiovascular Variables by Pulse Wave Acquisition and Analysis Using Non-Invasive Sensors
US20240197188A1 (en) * 2021-04-16 2024-06-20 3 Aim Ip Pty Ltd Physiological parameter sensing systems and methods
WO2023175423A1 (en) * 2022-03-15 2023-09-21 Sensio Enterprises Pvt Ltd A system to monitor beat-to-beat blood pressure using multistatic non-invasive measurements

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533401A (en) * 1966-07-29 1970-10-13 Hellige & Co Gmbh F Apparatus for automatically measuring blood pressure
US4140110A (en) * 1976-12-27 1979-02-20 American Optical Corporation Systolic pressure determining apparatus and process using integration to determine pulse amplitude
US4313445A (en) * 1977-10-25 1982-02-02 Ivac Corporation Electronic sphygmomanometer
US4669485A (en) * 1984-02-17 1987-06-02 Cortronic Corporation Apparatus and method for continuous non-invasive cardiovascular monitoring

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533401A (en) * 1966-07-29 1970-10-13 Hellige & Co Gmbh F Apparatus for automatically measuring blood pressure
US4140110A (en) * 1976-12-27 1979-02-20 American Optical Corporation Systolic pressure determining apparatus and process using integration to determine pulse amplitude
US4313445A (en) * 1977-10-25 1982-02-02 Ivac Corporation Electronic sphygmomanometer
US4669485A (en) * 1984-02-17 1987-06-02 Cortronic Corporation Apparatus and method for continuous non-invasive cardiovascular monitoring

Also Published As

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