WO2005009221A3 - Data acquisition system for pulse oximeters - Google Patents

Data acquisition system for pulse oximeters Download PDF

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Publication number
WO2005009221A3
WO2005009221A3 PCT/US2004/023426 US2004023426W WO2005009221A3 WO 2005009221 A3 WO2005009221 A3 WO 2005009221A3 US 2004023426 W US2004023426 W US 2004023426W WO 2005009221 A3 WO2005009221 A3 WO 2005009221A3
Authority
WO
WIPO (PCT)
Prior art keywords
pulse
data acquisition
acquisition system
pulse oximeters
background light
Prior art date
Application number
PCT/US2004/023426
Other languages
French (fr)
Other versions
WO2005009221A2 (en
Inventor
John Denny Bryars
Original Assignee
Titan Corp
John Denny Bryars
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 Titan Corp, John Denny Bryars filed Critical Titan Corp
Publication of WO2005009221A2 publication Critical patent/WO2005009221A2/en
Publication of WO2005009221A3 publication Critical patent/WO2005009221A3/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
    • A61B5/145—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
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/02—Operational features
    • A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Optics & Photonics (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

A data acquisition system for pulse oximetry detects a background light level sensed by a pulse oximeter probe and obtains a pulse stream for each of a plurality of wavelengths with which the pulse oximeter probe illuminates tissue. The pulse streams are corrected for the effect of the background light, amplified, and filtered to obtain pulse waveforms representing heart activity and blood oxygen saturation (Sp02).
PCT/US2004/023426 2003-07-21 2004-07-20 Data acquisition system for pulse oximeters WO2005009221A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48883903P 2003-07-21 2003-07-21
US60/488,839 2003-07-21

Publications (2)

Publication Number Publication Date
WO2005009221A2 WO2005009221A2 (en) 2005-02-03
WO2005009221A3 true WO2005009221A3 (en) 2005-06-23

Family

ID=34102790

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/023426 WO2005009221A2 (en) 2003-07-21 2004-07-20 Data acquisition system for pulse oximeters

Country Status (1)

Country Link
WO (1) WO2005009221A2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8818475B2 (en) 2005-03-03 2014-08-26 Covidien Lp Method for enhancing pulse oximetry calculations in the presence of correlated artifacts
US8874181B2 (en) 2004-02-25 2014-10-28 Covidien Lp Oximeter ambient light cancellation
US8930145B2 (en) 2010-07-28 2015-01-06 Covidien Lp Light focusing continuous wave photoacoustic spectroscopy and its applications to patient monitoring
US8965473B2 (en) 2005-09-29 2015-02-24 Covidien Lp Medical sensor for reducing motion artifacts and technique for using the same
US9113815B2 (en) 2008-06-30 2015-08-25 Nellcor Puritan Bennett Ireland Systems and methods for ridge selection in scalograms of signals
US9380969B2 (en) 2009-07-30 2016-07-05 Covidien Lp Systems and methods for varying a sampling rate of a signal

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7904130B2 (en) 2005-09-29 2011-03-08 Nellcor Puritan Bennett Llc Medical sensor and technique for using the same
US8219170B2 (en) 2006-09-20 2012-07-10 Nellcor Puritan Bennett Llc System and method for practicing spectrophotometry using light emitting nanostructure devices
US7684842B2 (en) 2006-09-29 2010-03-23 Nellcor Puritan Bennett Llc System and method for preventing sensor misuse
US8280469B2 (en) 2007-03-09 2012-10-02 Nellcor Puritan Bennett Llc Method for detection of aberrant tissue spectra
US8265724B2 (en) 2007-03-09 2012-09-11 Nellcor Puritan Bennett Llc Cancellation of light shunting
US8750953B2 (en) 2008-02-19 2014-06-10 Covidien Lp Methods and systems for alerting practitioners to physiological conditions
US9895068B2 (en) 2008-06-30 2018-02-20 Covidien Lp Pulse oximeter with wait-time indication
US8577431B2 (en) 2008-07-03 2013-11-05 Cercacor Laboratories, Inc. Noise shielding for a noninvasive device
US20100030040A1 (en) 2008-08-04 2010-02-04 Masimo Laboratories, Inc. Multi-stream data collection system for noninvasive measurement of blood constituents
US8483788B2 (en) 2010-02-28 2013-07-09 Covidien Lp Motion compensation in a sensor
US9833146B2 (en) 2012-04-17 2017-12-05 Covidien Lp Surgical system and method of use of the same
US9220409B2 (en) 2012-05-31 2015-12-29 Covidien Lp Optical instrument with ambient light removal
CN104507381B (en) * 2012-06-18 2017-01-18 皇家飞利浦有限公司 Photoplethysmographic device and method
CN105491943B (en) * 2014-06-30 2018-11-13 皇家飞利浦有限公司 Photoplethysmographic sensor device and method
CN113855013B (en) * 2021-09-28 2022-06-10 杭州大牧医疗科技有限公司 Probe conversion device of blood oxygen simulator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782758A (en) * 1996-09-23 1998-07-21 Ohmeda Inc. Method and apparatus for identifying the presence of noise in a time division multiplexed oximeter
US5954644A (en) * 1997-03-24 1999-09-21 Ohmeda Inc. Method for ambient light subtraction in a photoplethysmographic measurement instrument

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782758A (en) * 1996-09-23 1998-07-21 Ohmeda Inc. Method and apparatus for identifying the presence of noise in a time division multiplexed oximeter
US5954644A (en) * 1997-03-24 1999-09-21 Ohmeda Inc. Method for ambient light subtraction in a photoplethysmographic measurement instrument

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8874181B2 (en) 2004-02-25 2014-10-28 Covidien Lp Oximeter ambient light cancellation
US8818475B2 (en) 2005-03-03 2014-08-26 Covidien Lp Method for enhancing pulse oximetry calculations in the presence of correlated artifacts
US9351674B2 (en) 2005-03-03 2016-05-31 Covidien Lp Method for enhancing pulse oximetry calculations in the presence of correlated artifacts
US8965473B2 (en) 2005-09-29 2015-02-24 Covidien Lp Medical sensor for reducing motion artifacts and technique for using the same
US9113815B2 (en) 2008-06-30 2015-08-25 Nellcor Puritan Bennett Ireland Systems and methods for ridge selection in scalograms of signals
US9380969B2 (en) 2009-07-30 2016-07-05 Covidien Lp Systems and methods for varying a sampling rate of a signal
US8930145B2 (en) 2010-07-28 2015-01-06 Covidien Lp Light focusing continuous wave photoacoustic spectroscopy and its applications to patient monitoring

Also Published As

Publication number Publication date
WO2005009221A2 (en) 2005-02-03

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