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
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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
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
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

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pulmonology (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Physiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

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
EP1879501A4 (en) 2005-04-29 2009-05-20 Oren Gavriely Cough detector
US9106038B2 (en) 2009-10-15 2015-08-11 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
EP2765909B1 (en) 2011-10-13 2019-06-26 Masimo Corporation Physiological acoustic monitoring system

Cited By (31)

* 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
US10548561B2 (en) 2008-12-30 2020-02-04 Masimo Corporation Acoustic sensor assembly
US11559275B2 (en) 2008-12-30 2023-01-24 Masimo Corporation Acoustic sensor assembly
US9867578B2 (en) 2009-10-15 2018-01-16 Masimo Corporation Physiological acoustic monitoring system
US10813598B2 (en) 2009-10-15 2020-10-27 Masimo Corporation System and method for monitoring respiratory rate measurements
US9877686B2 (en) 2009-10-15 2018-01-30 Masimo Corporation System for determining confidence in respiratory rate measurements
US11998362B2 (en) 2009-10-15 2024-06-04 Masimo Corporation Acoustic respiratory monitoring sensor having multiple sensing elements
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
US10925544B2 (en) 2009-10-15 2021-02-23 Masimo Corporation Acoustic respiratory monitoring sensor having multiple sensing elements
US10463340B2 (en) 2009-10-15 2019-11-05 Masimo Corporation Acoustic respiratory monitoring systems and methods
US9668703B2 (en) 2009-10-15 2017-06-06 Masimo Corporation Bidirectional physiological information display
US8790268B2 (en) 2009-10-15 2014-07-29 Masimo Corporation Bidirectional physiological information display
US10595747B2 (en) 2009-10-16 2020-03-24 Masimo Corporation Respiration processor
US9724016B1 (en) 2009-10-16 2017-08-08 Masimo Corp. Respiration processor
US11974841B2 (en) 2009-10-16 2024-05-07 Masimo Corporation Respiration processor
US10729402B2 (en) 2009-12-04 2020-08-04 Masimo Corporation Calibration for multi-stage physiological monitors
US11571152B2 (en) 2009-12-04 2023-02-07 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
US9955937B2 (en) 2012-09-20 2018-05-01 Masimo Corporation Acoustic patient sensor coupler
US11020084B2 (en) 2012-09-20 2021-06-01 Masimo Corporation Acoustic patient sensor coupler
US11992361B2 (en) 2012-09-20 2024-05-28 Masimo Corporation Acoustic patient sensor coupler
US11963749B2 (en) 2013-03-13 2024-04-23 Masimo Corporation Acoustic physiological monitoring system
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
US12016721B2 (en) 2013-10-11 2024-06-25 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