WO2012107843A3 - Devices and methods for monitoring cerebral hemodynamic conditions - Google Patents

Devices and methods for monitoring cerebral hemodynamic conditions Download PDF

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Publication number
WO2012107843A3
WO2012107843A3 PCT/IB2012/000846 IB2012000846W WO2012107843A3 WO 2012107843 A3 WO2012107843 A3 WO 2012107843A3 IB 2012000846 W IB2012000846 W IB 2012000846W WO 2012107843 A3 WO2012107843 A3 WO 2012107843A3
Authority
WO
WIPO (PCT)
Prior art keywords
methods
devices
signal
hemodynamic conditions
cerebral hemodynamic
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB2012/000846
Other languages
French (fr)
Other versions
WO2012107843A2 (en
Inventor
Opher Kinrot
Shlomi Ben-Ari
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orsan Medical Technologies Ltd
Original Assignee
Orsan Medical Technologies 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 Orsan Medical Technologies Ltd filed Critical Orsan Medical Technologies Ltd
Priority to JP2013553048A priority Critical patent/JP2014507992A/en
Priority to CN201280014244.4A priority patent/CN103635132A/en
Priority to EP12744694.6A priority patent/EP2672885A2/en
Publication of WO2012107843A2 publication Critical patent/WO2012107843A2/en
Publication of WO2012107843A3 publication Critical patent/WO2012107843A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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 for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • A61B5/026—Measuring blood flow
    • A61B5/0265—Measuring blood flow using electromagnetic means, e.g. electromagnetic flowmeter
    • 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 for evaluating the cardiovascular system, e.g. pulse, heart rate, blood pressure or blood flow
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/40—Detecting, measuring or recording for evaluating the nervous system
    • A61B5/4058—Detecting, measuring or recording for evaluating the nervous system for evaluating the central nervous system
    • A61B5/4064—Evaluating the brain
    • 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
    • A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
    • 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
    • A61B5/7246—Details of waveform analysis using correlation, e.g. template matching or determination of similarity
    • 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

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Physiology (AREA)
  • Neurology (AREA)
  • Cardiology (AREA)
  • Hematology (AREA)
  • Psychology (AREA)
  • Electromagnetism (AREA)
  • Neurosurgery (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Psychiatry (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)

Abstract

Devices, and methods for monitoring cerebro-hemodynamic signals are disclosed. In one aspect, the devices and methods may include receiving at least one signal characterizing a bioimpedance measurement. The at least one signal may be correlated with the timing of a cardiac wave and analyzed to ascertain an extent of an expected characteristic within the signal. The extent of the expected characteristic may be used to provide information for predicting a physiological brain condition. The at least one signal may include two signals, obtained from opposite brain hemispheres, and may be a bioimpedance signal.
PCT/IB2012/000846 2011-02-09 2012-02-08 Devices and methods for monitoring cerebral hemodynamic conditions Ceased WO2012107843A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2013553048A JP2014507992A (en) 2011-02-09 2012-02-08 Apparatus and method for monitoring cerebral hemodynamic status
CN201280014244.4A CN103635132A (en) 2011-02-09 2012-02-08 Devices and methods for monitoring cerebral hemodynamic conditions
EP12744694.6A EP2672885A2 (en) 2011-02-09 2012-02-08 Devices and methods for monitoring cerebral hemodynamic conditions

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201161441248P 2011-02-09 2011-02-09
US61/441,248 2011-02-09
US201161474739P 2011-04-12 2011-04-12
US61/474,739 2011-04-12
US13/252,191 US9307918B2 (en) 2011-02-09 2011-10-03 Devices and methods for monitoring cerebral hemodynamic conditions
US13/252,191 2011-10-03

Publications (2)

Publication Number Publication Date
WO2012107843A2 WO2012107843A2 (en) 2012-08-16
WO2012107843A3 true WO2012107843A3 (en) 2012-11-22

Family

ID=46601098

Family Applications (4)

Application Number Title Priority Date Filing Date
PCT/IB2012/000527 Ceased WO2012107840A2 (en) 2011-02-09 2012-02-07 Devices and methods for monitoring cerebral hemodynamic conditions
PCT/IB2012/000332 Ceased WO2012107836A2 (en) 2011-02-09 2012-02-07 Devices and methods for monitoring cerebral hemodynamic conditions
PCT/IB2012/000834 Ceased WO2012107842A2 (en) 2011-02-09 2012-02-08 Devices and methods for monitoring cerebral hemodynamic characteristics
PCT/IB2012/000846 Ceased WO2012107843A2 (en) 2011-02-09 2012-02-08 Devices and methods for monitoring cerebral hemodynamic conditions

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PCT/IB2012/000527 Ceased WO2012107840A2 (en) 2011-02-09 2012-02-07 Devices and methods for monitoring cerebral hemodynamic conditions
PCT/IB2012/000332 Ceased WO2012107836A2 (en) 2011-02-09 2012-02-07 Devices and methods for monitoring cerebral hemodynamic conditions
PCT/IB2012/000834 Ceased WO2012107842A2 (en) 2011-02-09 2012-02-08 Devices and methods for monitoring cerebral hemodynamic characteristics

Country Status (5)

Country Link
US (4) US9345411B2 (en)
EP (4) EP2672883A4 (en)
JP (4) JP5981945B2 (en)
CN (4) CN103517670B (en)
WO (4) WO2012107840A2 (en)

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