CA2262236A1 - Phonospirometry for non-invasive monitoring of respiration - Google Patents

Phonospirometry for non-invasive monitoring of respiration Download PDF

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Publication number
CA2262236A1
CA2262236A1 CA 2262236 CA2262236A CA2262236A1 CA 2262236 A1 CA2262236 A1 CA 2262236A1 CA 2262236 CA2262236 CA 2262236 CA 2262236 A CA2262236 A CA 2262236A CA 2262236 A1 CA2262236 A1 CA 2262236A1
Authority
CA
Canada
Prior art keywords
signal
sound signal
respiration
threshold
volume
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.)
Granted
Application number
CA 2262236
Other languages
French (fr)
Other versions
CA2262236C (en
Inventor
Cheng-Li Que
Peter T. Macklem
Suzanne M. Kelly
Krzystof Kolmaga
Louis-Gilles Durand
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.)
McGill University
Institut de Recherches Cliniques de Montreal IRCM
Original Assignee
Cheng-Li Que
Mcgill University
Peter T. Macklem
Suzanne M. Kelly
Institut De Recherches Cliniques De Montreal (I.R.C.M.)
Krzystof Kolmaga
Louis-Gilles Durand
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 Cheng-Li Que, Mcgill University, Peter T. Macklem, Suzanne M. Kelly, Institut De Recherches Cliniques De Montreal (I.R.C.M.), Krzystof Kolmaga, Louis-Gilles Durand filed Critical Cheng-Li Que
Priority to CA 2262236 priority Critical patent/CA2262236C/en
Publication of CA2262236A1 publication Critical patent/CA2262236A1/en
Application granted granted Critical
Publication of CA2262236C publication Critical patent/CA2262236C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/091—Measuring volume of inspired or expired gases, e.g. to determine lung capacity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation
    • A61B7/003—Detecting lung or respiration noise

Abstract

To compensate for the poor signal-to-noise ratio when transforming a patient tracheal sound signal into a respiration flow signal, the transformed signal is used when the sound signal is above a threshold, and interpolated values are used when the sound signal is below the threshold. A volume of breath signal is reliably obtained. Respiration start/stop is detected either by analyzing the sound signal or by physical measurement of the patient. A wearable device incorporating the sound signal processing method can provide an immediate indication or alarm when the volume of breath signal indicates a condition requiring medical attention.
CA 2262236 1998-02-20 1999-02-22 Phonospirometry for non-invasive monitoring of respiration Expired - Lifetime CA2262236C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2262236 CA2262236C (en) 1998-02-20 1999-02-22 Phonospirometry for non-invasive monitoring of respiration

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2230077 1998-02-20
CA2,230,077 1998-02-20
CA 2262236 CA2262236C (en) 1998-02-20 1999-02-22 Phonospirometry for non-invasive monitoring of respiration

Publications (2)

Publication Number Publication Date
CA2262236A1 true CA2262236A1 (en) 1999-08-20
CA2262236C CA2262236C (en) 2008-04-29

Family

ID=29585082

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2262236 Expired - Lifetime CA2262236C (en) 1998-02-20 1999-02-22 Phonospirometry for non-invasive monitoring of respiration

Country Status (1)

Country Link
CA (1) CA2262236C (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006113968A1 (en) * 2005-04-27 2006-11-02 Pulmosonix Pty Ltd Method of determining lung condition indicators
US8790268B2 (en) 2009-10-15 2014-07-29 Masimo Corporation Bidirectional physiological information display
US9724016B1 (en) 2009-10-16 2017-08-08 Masimo Corp. Respiration processor
US9782110B2 (en) 2010-06-02 2017-10-10 Masimo Corporation Opticoustic sensor
US9795358B2 (en) 2008-12-30 2017-10-24 Masimo Corporation Acoustic sensor assembly
US9867578B2 (en) 2009-10-15 2018-01-16 Masimo Corporation Physiological acoustic monitoring system
US9877686B2 (en) 2009-10-15 2018-01-30 Masimo Corporation System for determining confidence in respiratory rate measurements
US9955937B2 (en) 2012-09-20 2018-05-01 Masimo Corporation Acoustic patient sensor coupler
US10349895B2 (en) 2009-10-15 2019-07-16 Masimo Corporation Acoustic respiratory monitoring sensor having multiple sensing elements
US10441181B1 (en) 2013-03-13 2019-10-15 Masimo Corporation Acoustic pulse and respiration monitoring system
US10463340B2 (en) 2009-10-15 2019-11-05 Masimo Corporation Acoustic respiratory monitoring systems and methods
US10729402B2 (en) 2009-12-04 2020-08-04 Masimo Corporation Calibration for multi-stage physiological monitors
US10828007B1 (en) 2013-10-11 2020-11-10 Masimo Corporation Acoustic sensor with attachment portion
CN113796851A (en) * 2021-09-30 2021-12-17 喜临门家具股份有限公司 Method and device for identifying breathing positive abnormality
US11399722B2 (en) 2010-03-30 2022-08-02 Masimo Corporation Plethysmographic respiration rate detection
US11412964B2 (en) 2008-05-05 2022-08-16 Masimo Corporation Pulse oximetry system with electrical decoupling circuitry

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2464029A1 (en) 2004-04-08 2005-10-08 Valery Telfort Non-invasive ventilation monitor
AU2006242838B2 (en) 2005-04-29 2012-02-16 Isonea (Israel) Ltd Cough detector
WO2011047211A1 (en) 2009-10-15 2011-04-21 Masimo Corporation Pulse oximetry system with low noise cable hub
US9192351B1 (en) 2011-07-22 2015-11-24 Masimo Corporation Acoustic respiratory monitoring sensor with probe-off detection
EP3603502B1 (en) 2011-10-13 2023-10-04 Masimo Corporation Physiological acoustic monitoring system

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006113968A1 (en) * 2005-04-27 2006-11-02 Pulmosonix Pty Ltd Method of determining lung condition indicators
US11412964B2 (en) 2008-05-05 2022-08-16 Masimo Corporation Pulse oximetry system with electrical decoupling circuitry
US9795358B2 (en) 2008-12-30 2017-10-24 Masimo Corporation Acoustic sensor assembly
US11559275B2 (en) 2008-12-30 2023-01-24 Masimo Corporation Acoustic sensor assembly
US10548561B2 (en) 2008-12-30 2020-02-04 Masimo Corporation Acoustic sensor assembly
US10463340B2 (en) 2009-10-15 2019-11-05 Masimo Corporation Acoustic respiratory monitoring systems and methods
US10925544B2 (en) 2009-10-15 2021-02-23 Masimo Corporation Acoustic respiratory monitoring sensor having multiple sensing elements
US9877686B2 (en) 2009-10-15 2018-01-30 Masimo Corporation System for determining confidence in respiratory rate measurements
US10349895B2 (en) 2009-10-15 2019-07-16 Masimo Corporation Acoustic respiratory monitoring sensor having multiple sensing elements
US10357209B2 (en) 2009-10-15 2019-07-23 Masimo Corporation Bidirectional physiological information display
US8790268B2 (en) 2009-10-15 2014-07-29 Masimo Corporation Bidirectional physiological information display
US9668703B2 (en) 2009-10-15 2017-06-06 Masimo Corporation Bidirectional physiological information display
US10813598B2 (en) 2009-10-15 2020-10-27 Masimo Corporation System and method for monitoring respiratory rate measurements
US9867578B2 (en) 2009-10-15 2018-01-16 Masimo Corporation Physiological acoustic monitoring system
US9724016B1 (en) 2009-10-16 2017-08-08 Masimo Corp. Respiration processor
US10595747B2 (en) 2009-10-16 2020-03-24 Masimo Corporation Respiration processor
US11571152B2 (en) 2009-12-04 2023-02-07 Masimo Corporation Calibration for multi-stage physiological monitors
US10729402B2 (en) 2009-12-04 2020-08-04 Masimo Corporation Calibration for multi-stage physiological monitors
US11399722B2 (en) 2010-03-30 2022-08-02 Masimo Corporation Plethysmographic respiration rate detection
US9782110B2 (en) 2010-06-02 2017-10-10 Masimo Corporation Opticoustic sensor
US11020084B2 (en) 2012-09-20 2021-06-01 Masimo Corporation Acoustic patient sensor coupler
US9955937B2 (en) 2012-09-20 2018-05-01 Masimo Corporation Acoustic patient sensor coupler
US10441181B1 (en) 2013-03-13 2019-10-15 Masimo Corporation Acoustic pulse and respiration monitoring system
US10828007B1 (en) 2013-10-11 2020-11-10 Masimo Corporation Acoustic sensor with attachment portion
CN113796851A (en) * 2021-09-30 2021-12-17 喜临门家具股份有限公司 Method and device for identifying breathing positive abnormality
CN113796851B (en) * 2021-09-30 2024-03-22 喜临门家具股份有限公司 Breathing positive abnormality identification method and device

Also Published As

Publication number Publication date
CA2262236C (en) 2008-04-29

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Effective date: 20190222