WO2010030780A3 - System and method for detecting ventilatory instability - Google Patents

System and method for detecting ventilatory instability Download PDF

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Publication number
WO2010030780A3
WO2010030780A3 PCT/US2009/056514 US2009056514W WO2010030780A3 WO 2010030780 A3 WO2010030780 A3 WO 2010030780A3 US 2009056514 W US2009056514 W US 2009056514W WO 2010030780 A3 WO2010030780 A3 WO 2010030780A3
Authority
WO
WIPO (PCT)
Prior art keywords
airflow
events
channel
reduction
signals
Prior art date
Application number
PCT/US2009/056514
Other languages
French (fr)
Other versions
WO2010030780A2 (en
Inventor
James Ochs
Keith Batchelder
Yu-Jung Pinto
Original Assignee
Nellcor Puritan Bennett Llc
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 Nellcor Puritan Bennett Llc filed Critical Nellcor Puritan Bennett Llc
Priority to CA2735133A priority Critical patent/CA2735133A1/en
Priority to AU2009291807A priority patent/AU2009291807B2/en
Priority to EP09792419A priority patent/EP2348992A2/en
Publication of WO2010030780A2 publication Critical patent/WO2010030780A2/en
Publication of WO2010030780A3 publication Critical patent/WO2010030780A3/en

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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
    • A61B5/08—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
    • A61B5/0002—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
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/087—Measuring breath flow
    • 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
    • A61B5/48—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
    • A61B5/72—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
    • 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
    • A61B5/7271—Specific aspects of physiological measurement analysis
    • A61B5/7282—Event detection, e.g. detecting unique waveforms indicative of a medical condition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/113—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing
    • A61B5/1135—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb occurring during breathing by monitoring thoracic expansion
    • 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

Abstract

Embodiments described herein may include systems and methods for detecting events that may be associated with sleep apnea. Some embodiments are directed to a system and/or method for automated detection of reduction in airflow events using polysomnograph signals, wherein the reduction in airflow events may relate to sleep apnea. The PSG signals may be limited to four signals, including data from an airflow channel, a blood oxygen saturation channel, a chest movement channel, and an abdomen movement channel. Using information from these channels, some embodiments may automatically identify reduction in airflow events.
PCT/US2009/056514 2008-09-10 2009-09-10 System and method for detecting ventilatory instability WO2010030780A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2735133A CA2735133A1 (en) 2008-09-10 2009-09-10 System and method for detecting ventilatory instability
AU2009291807A AU2009291807B2 (en) 2008-09-10 2009-09-10 System and method for detecting ventilatory instability
EP09792419A EP2348992A2 (en) 2008-09-10 2009-09-10 System and method for detecting ventilatory instability

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/208,087 2008-09-10
US12/208,087 US8398555B2 (en) 2008-09-10 2008-09-10 System and method for detecting ventilatory instability

Publications (2)

Publication Number Publication Date
WO2010030780A2 WO2010030780A2 (en) 2010-03-18
WO2010030780A3 true WO2010030780A3 (en) 2010-05-06

Family

ID=41338504

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/056514 WO2010030780A2 (en) 2008-09-10 2009-09-10 System and method for detecting ventilatory instability

Country Status (5)

Country Link
US (2) US8398555B2 (en)
EP (1) EP2348992A2 (en)
AU (1) AU2009291807B2 (en)
CA (1) CA2735133A1 (en)
WO (1) WO2010030780A2 (en)

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US20140323824A1 (en) * 2013-04-25 2014-10-30 Covidien Lp Systems and methods for determining fluid responsiveness
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