WO2001043632A1 - Improved photoplethysmographic instrument - Google Patents
Improved photoplethysmographic instrument Download PDFInfo
- Publication number
- WO2001043632A1 WO2001043632A1 PCT/US2000/033242 US0033242W WO0143632A1 WO 2001043632 A1 WO2001043632 A1 WO 2001043632A1 US 0033242 W US0033242 W US 0033242W WO 0143632 A1 WO0143632 A1 WO 0143632A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- gain
- signal
- amplifier
- amplifying
- Prior art date
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
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- 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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00984028A EP1237465A1 (en) | 1999-12-17 | 2000-12-07 | Improved photoplethysmographic instrument |
AU20708/01A AU2070801A (en) | 1999-12-17 | 2000-12-07 | Improved photoplethysmographic instrument |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/465,858 US6360113B1 (en) | 1999-12-17 | 1999-12-17 | Photoplethysmographic instrument |
US09/465,858 | 1999-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001043632A1 true WO2001043632A1 (en) | 2001-06-21 |
Family
ID=23849463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/033242 WO2001043632A1 (en) | 1999-12-17 | 2000-12-07 | Improved photoplethysmographic instrument |
Country Status (4)
Country | Link |
---|---|
US (1) | US6360113B1 (en) |
EP (1) | EP1237465A1 (en) |
AU (1) | AU2070801A (en) |
WO (1) | WO2001043632A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008080043A1 (en) * | 2006-12-21 | 2008-07-03 | Draeger Medical Systems, Inc. | An electronic signal filtering system suitable for medical device and other usage |
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US6018673A (en) | 1996-10-10 | 2000-01-25 | Nellcor Puritan Bennett Incorporated | Motion compatible sensor for non-invasive optical blood analysis |
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US7142142B2 (en) * | 2004-02-25 | 2006-11-28 | Nelicor Puritan Bennett, Inc. | Multi-bit ADC with sigma-delta modulation |
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US20070060808A1 (en) | 2005-09-12 | 2007-03-15 | Carine Hoarau | Medical sensor for reducing motion artifacts and technique for using the same |
US7869850B2 (en) | 2005-09-29 | 2011-01-11 | Nellcor Puritan Bennett Llc | Medical sensor for reducing motion artifacts and technique for using the same |
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US8219170B2 (en) | 2006-09-20 | 2012-07-10 | Nellcor Puritan Bennett Llc | System and method for practicing spectrophotometry using light emitting nanostructure devices |
US8175671B2 (en) | 2006-09-22 | 2012-05-08 | Nellcor Puritan Bennett Llc | Medical sensor for reducing signal artifacts and technique for using the same |
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US8396527B2 (en) | 2006-09-22 | 2013-03-12 | Covidien Lp | Medical sensor for reducing signal artifacts and technique for using the same |
US8242429B2 (en) * | 2006-09-25 | 2012-08-14 | Rahul Sarpeshkar | Ultra-low-power pulse oximeter implemented with an energy-efficient photoreceptor |
US7869849B2 (en) | 2006-09-26 | 2011-01-11 | Nellcor Puritan Bennett Llc | Opaque, electrically nonconductive region on a medical sensor |
US7574245B2 (en) | 2006-09-27 | 2009-08-11 | Nellcor Puritan Bennett Llc | Flexible medical sensor enclosure |
US7796403B2 (en) | 2006-09-28 | 2010-09-14 | Nellcor Puritan Bennett Llc | Means for mechanical registration and mechanical-electrical coupling of a faraday shield to a photodetector and an electrical circuit |
US7890153B2 (en) | 2006-09-28 | 2011-02-15 | Nellcor Puritan Bennett Llc | System and method for mitigating interference in pulse oximetry |
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US8068891B2 (en) | 2006-09-29 | 2011-11-29 | Nellcor Puritan Bennett Llc | Symmetric LED array for pulse oximetry |
US7684842B2 (en) | 2006-09-29 | 2010-03-23 | Nellcor Puritan Bennett Llc | System and method for preventing sensor misuse |
US8175667B2 (en) | 2006-09-29 | 2012-05-08 | Nellcor Puritan Bennett Llc | Symmetric LED array for pulse oximetry |
US8265724B2 (en) | 2007-03-09 | 2012-09-11 | Nellcor Puritan Bennett Llc | Cancellation of light shunting |
US7894869B2 (en) | 2007-03-09 | 2011-02-22 | Nellcor Puritan Bennett Llc | Multiple configuration medical sensor and technique for using the same |
US8280469B2 (en) | 2007-03-09 | 2012-10-02 | Nellcor Puritan Bennett Llc | Method for detection of aberrant tissue spectra |
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US20080319327A1 (en) * | 2007-06-25 | 2008-12-25 | Triage Wireless, Inc. | Body-worn sensor featuring a low-power processor and multi-sensor array for measuring blood pressure |
US8346328B2 (en) | 2007-12-21 | 2013-01-01 | Covidien Lp | Medical sensor and technique for using the same |
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US8442608B2 (en) | 2007-12-28 | 2013-05-14 | Covidien Lp | System and method for estimating physiological parameters by deconvolving artifacts |
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US8092993B2 (en) | 2007-12-31 | 2012-01-10 | Nellcor Puritan Bennett Llc | Hydrogel thin film for use as a biosensor |
US8897850B2 (en) | 2007-12-31 | 2014-11-25 | Covidien Lp | Sensor with integrated living hinge and spring |
US8437822B2 (en) | 2008-03-28 | 2013-05-07 | Covidien Lp | System and method for estimating blood analyte concentration |
US8112375B2 (en) | 2008-03-31 | 2012-02-07 | Nellcor Puritan Bennett Llc | Wavelength selection and outlier detection in reduced rank linear models |
US10271778B2 (en) * | 2008-06-03 | 2019-04-30 | Nonin Medical, Inc. | LED control utilizing ambient light or signal quality |
US8071935B2 (en) | 2008-06-30 | 2011-12-06 | Nellcor Puritan Bennett Llc | Optical detector with an overmolded faraday shield |
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US8801613B2 (en) | 2009-12-04 | 2014-08-12 | Masimo Corporation | Calibration for multi-stage physiological monitors |
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US8761853B2 (en) | 2011-01-20 | 2014-06-24 | Nitto Denko Corporation | Devices and methods for non-invasive optical physiological measurements |
US8948832B2 (en) | 2012-06-22 | 2015-02-03 | Fitbit, Inc. | Wearable heart rate monitor |
US9039614B2 (en) | 2013-01-15 | 2015-05-26 | Fitbit, Inc. | Methods, systems and devices for measuring fingertip heart rate |
US10512407B2 (en) * | 2013-06-24 | 2019-12-24 | Fitbit, Inc. | Heart rate data collection |
US11206989B2 (en) | 2015-12-10 | 2021-12-28 | Fitbit, Inc. | Light field management in an optical biological parameter sensor |
US10568525B1 (en) | 2015-12-14 | 2020-02-25 | Fitbit, Inc. | Multi-wavelength pulse oximetry |
US10433739B2 (en) | 2016-04-29 | 2019-10-08 | Fitbit, Inc. | Multi-channel photoplethysmography sensor |
US11051706B1 (en) | 2017-04-07 | 2021-07-06 | Fitbit, Inc. | Multiple source-detector pair photoplethysmography (PPG) sensor |
CN112074760A (en) * | 2017-12-27 | 2020-12-11 | ams传感器新加坡私人有限公司 | Photovoltaic module and method for operating same |
JP2023056972A (en) * | 2021-10-08 | 2023-04-20 | 日機装株式会社 | Blood purification device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4819752A (en) * | 1987-10-02 | 1989-04-11 | Datascope Corp. | Blood constituent measuring device and method |
US5351685A (en) * | 1991-08-05 | 1994-10-04 | Nellcor Incorporated | Condensed oximeter system with noise reduction software |
-
1999
- 1999-12-17 US US09/465,858 patent/US6360113B1/en not_active Expired - Lifetime
-
2000
- 2000-12-07 WO PCT/US2000/033242 patent/WO2001043632A1/en not_active Application Discontinuation
- 2000-12-07 AU AU20708/01A patent/AU2070801A/en not_active Abandoned
- 2000-12-07 EP EP00984028A patent/EP1237465A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4819752A (en) * | 1987-10-02 | 1989-04-11 | Datascope Corp. | Blood constituent measuring device and method |
US5351685A (en) * | 1991-08-05 | 1994-10-04 | Nellcor Incorporated | Condensed oximeter system with noise reduction software |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008080043A1 (en) * | 2006-12-21 | 2008-07-03 | Draeger Medical Systems, Inc. | An electronic signal filtering system suitable for medical device and other usage |
Also Published As
Publication number | Publication date |
---|---|
AU2070801A (en) | 2001-06-25 |
US6360113B1 (en) | 2002-03-19 |
EP1237465A1 (en) | 2002-09-11 |
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