WO2002017991A3 - Respiratory gas sensors in flow path - Google Patents

Respiratory gas sensors in flow path Download PDF

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Publication number
WO2002017991A3
WO2002017991A3 PCT/US2001/041917 US0141917W WO0217991A3 WO 2002017991 A3 WO2002017991 A3 WO 2002017991A3 US 0141917 W US0141917 W US 0141917W WO 0217991 A3 WO0217991 A3 WO 0217991A3
Authority
WO
WIPO (PCT)
Prior art keywords
respiratory gas
flow path
meter
radiation
gas sensor
Prior art date
Application number
PCT/US2001/041917
Other languages
French (fr)
Other versions
WO2002017991A2 (en
Inventor
James R Mault
Original Assignee
Healthtech Inc
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
Priority claimed from US09/685,439 external-priority patent/US6612306B1/en
Application filed by Healthtech Inc filed Critical Healthtech Inc
Priority to AU2001293226A priority Critical patent/AU2001293226A1/en
Publication of WO2002017991A2 publication Critical patent/WO2002017991A2/en
Publication of WO2002017991A3 publication Critical patent/WO2002017991A3/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6896—Toys
    • 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
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
    • 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
    • A61B5/083—Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
    • 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
    • A61B5/083—Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
    • A61B5/0833—Measuring rate of oxygen consumption
    • 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
    • A61B5/08—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
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
    • 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
    • A61B5/1112—Global tracking of patients, e.g. by using GPS
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    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/316—Modalities, i.e. specific diagnostic methods
    • A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
    • A61B5/339—Displays specially adapted therefor
    • A—HUMAN NECESSITIES
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    • A61B5/41—Detecting, measuring or recording for evaluating the immune or lymphatic systems
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    • A—HUMAN NECESSITIES
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    • A61B5/4869—Determining body composition
    • A61B5/4872—Body fat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6814—Head
    • A61B5/6815—Ear
    • A61B5/6817—Ear canal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813—Specially adapted to be attached to a specific body part
    • A61B5/6825—Hand
    • A61B5/6826—Finger
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    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683—Means for maintaining contact with the body
    • A61B5/6838—Clamps or clips
    • A—HUMAN NECESSITIES
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    • A61B5/74—Details of notification to user or communication with user or patient ; user input means
    • A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
    • 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
    • A61B2560/0295—Operational features adapted for recording user messages or annotations
    • 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
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0456—Apparatus provided with a docking unit
    • 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
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0462—Apparatus with built-in sensors
    • 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
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0462—Apparatus with built-in sensors
    • A61B2560/0468—Built-in electrodes
    • A—HUMAN NECESSITIES
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    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
    • A61B2560/04—Constructional details of apparatus
    • A61B2560/0475—Special features of memory means, e.g. removable memory cards
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
    • 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
    • A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0008—Temperature signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/021—Measuring pressure in heart or blood vessels
    • A61B5/022—Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthalmodynamometers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
    • A61B5/024—Detecting, measuring or recording pulse rate or heart rate
    • A61B5/02438—Detecting, measuring or recording pulse rate or heart rate with portable devices, e.g. worn by the patient
    • 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
    • A61B5/14532—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 for measuring glucose, e.g. by tissue impedance measurement
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B7/00—Instruments for auscultation

Abstract

A respiratory gas meter (10) is useful in detecting a gas component of a respiratory gas flowing along a flow path in the meter as a user breathes. The meter includes a respiratory gas sensor (24) disposed in the flow path of the meter. One example of a respiratory gas sensor includes a fluorescence gas sensor (24a) having a radiation emitter for directing radiation along the flow path and a radiation detector (46, 48) for detecting fluorescense from the respiratory gas induced by the radiation. The respiratory gas sensor also includes a narrow band filter (50, 52) disposed between the detector and the gas, to pass fluorescence to the radiation detector, so as to instantaneously detect components of the respiratory gas passing through the flow path. Another example of a respiratory gas sensor includes a micromachined sensor (24c) that detects nitric oxide through the change in resonance frequency of the micromachined structure due to absorption of nitric oxide on the surface of the structure.
PCT/US2001/041917 2000-08-28 2001-08-28 Respiratory gas sensors in flow path WO2002017991A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001293226A AU2001293226A1 (en) 2000-08-28 2001-08-28 Respiratory gas sensors in flow path

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US22838800P 2000-08-28 2000-08-28
US60/228,388 2000-08-28
US09/685,439 US6612306B1 (en) 1999-10-13 2000-10-11 Respiratory nitric oxide meter
US09/685,439 2000-10-11

Publications (2)

Publication Number Publication Date
WO2002017991A2 WO2002017991A2 (en) 2002-03-07
WO2002017991A3 true WO2002017991A3 (en) 2002-08-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/041917 WO2002017991A2 (en) 2000-08-28 2001-08-28 Respiratory gas sensors in flow path

Country Status (2)

Country Link
AU (1) AU2001293226A1 (en)
WO (1) WO2002017991A2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070167853A1 (en) 2002-01-22 2007-07-19 Melker Richard J System and method for monitoring health using exhaled breath
US6733464B2 (en) 2002-08-23 2004-05-11 Hewlett-Packard Development Company, L.P. Multi-function sensor device and methods for its use
GB2410793B (en) * 2004-02-05 2006-05-17 Elan Vital Fluid analyser systems
EP1632178A1 (en) * 2004-09-03 2006-03-08 ndd Medizintechnik AG Method for non-cooperative lung function diagnosis using ultrasound
US8348853B2 (en) * 2006-02-06 2013-01-08 Deka Products Limited Partnership System, method and device for aiding in the diagnosis of respiratory dysfunction
WO2007142644A1 (en) * 2006-06-08 2007-12-13 Braun Charles L Spectroscopic breath profile analysis device and uses thereof for facilitating diagnosis of medical conditions
US7914460B2 (en) * 2006-08-15 2011-03-29 University Of Florida Research Foundation, Inc. Condensate glucose analyzer
WO2008022183A1 (en) * 2006-08-15 2008-02-21 University Of Florida Research Foundation, Inc. Condensate glucose analyzer
GB0821188D0 (en) 2008-11-19 2008-12-24 Isis Innovation Measurment of gas concentrations in breath
GB2569467B (en) 2012-04-05 2019-10-30 Fisher & Paykel Healthcare Ltd Respiratory assistance apparatus
CN104619373B (en) 2012-04-27 2017-08-11 费雪派克医疗保健有限公司 Availability aspect for breathing humidification system
CN108465147B (en) 2013-09-13 2022-09-27 费雪派克医疗保健有限公司 Connection for humidification system
WO2015119515A1 (en) 2014-02-07 2015-08-13 Fisher & Paykel Healthcare Limited Respiratory humidification system
CN112370630A (en) 2014-06-03 2021-02-19 费雪派克医疗保健有限公司 Flow mixer for respiratory therapy system
CN105380651A (en) * 2015-11-09 2016-03-09 上海舒爽材料科技有限公司 System for oral cavity halitosis detecting and early warning
EP4063811A1 (en) 2016-12-07 2022-09-28 Fisher & Paykel Healthcare Limited Seal/cover for use with a sensing arrangement of a medical device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725658A (en) * 1971-01-18 1973-04-03 Trw Inc Apparatus and method for continuously detecting oxygen in a gas stream
US5363842A (en) * 1991-12-20 1994-11-15 Circadian, Inc. Intelligent inhaler providing feedback to both patient and medical professional
US5447165A (en) * 1991-09-27 1995-09-05 Gustafsson; Lars E. Method for ascertaining prevailing lung condition and a device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3725658A (en) * 1971-01-18 1973-04-03 Trw Inc Apparatus and method for continuously detecting oxygen in a gas stream
US5447165A (en) * 1991-09-27 1995-09-05 Gustafsson; Lars E. Method for ascertaining prevailing lung condition and a device
US5363842A (en) * 1991-12-20 1994-11-15 Circadian, Inc. Intelligent inhaler providing feedback to both patient and medical professional

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GABOR ET AL.: "Determination of nitric oxide levels by fluorescence spectroscopy, biochemical, pharmacological and clinical aspects of nitric oxide", 1995, PLENUM PRESS, NEW YORK, pages 57 - 66, XP002909773 *

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Publication number Publication date
WO2002017991A2 (en) 2002-03-07
AU2001293226A1 (en) 2002-03-13

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