IT1252600B - Sistema flussometrico per gas di respirazione - Google Patents

Sistema flussometrico per gas di respirazione

Info

Publication number
IT1252600B
IT1252600B ITTO910433A ITTO910433A IT1252600B IT 1252600 B IT1252600 B IT 1252600B IT TO910433 A ITTO910433 A IT TO910433A IT TO910433 A ITTO910433 A IT TO910433A IT 1252600 B IT1252600 B IT 1252600B
Authority
IT
Italy
Prior art keywords
flowmetric
mouthpiece
breathing gas
usable
mouth
Prior art date
Application number
ITTO910433A
Other languages
English (en)
Inventor
John A Norlien
Michael G Snow
Gerrit Crawford
Original Assignee
Medical Graphics Corp
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 Medical Graphics Corp filed Critical Medical Graphics Corp
Publication of ITTO910433A0 publication Critical patent/ITTO910433A0/it
Publication of ITTO910433A1 publication Critical patent/ITTO910433A1/it
Application granted granted Critical
Publication of IT1252600B publication Critical patent/IT1252600B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/363—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction with electrical or electro-mechanical indication
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Measuring 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—Measuring devices for evaluating the respiratory organs
    • A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40—Details of construction of the flow constriction devices
    • G01F1/46—Pitot tubes

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Pulmonology (AREA)
  • General Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physiology (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)
  • Measuring Volume Flow (AREA)

Abstract

Sistema flussometrico dotato di una imboccatura a perdere comprendente tubi di pitot disposti simmetricamente per misurare la velocità dei gas respiratori che fluiscono nella bocca ed un modulo elettronico comprendente trasduttori di pressione collegato all'imboccatura ed operativo su un ampio campo dinamico per inviare segnali di imput ad un sistema di elaborazione dei segnali per trasformare le letture di pressione in informazioni sul flusso, utilizzabile in dispostivi per l'analisi dell'efficienza cardiopolmonare.
ITTO910433A 1990-06-08 1991-06-07 Sistema flussometrico per gas di respirazione IT1252600B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/535,045 US5038773A (en) 1990-06-08 1990-06-08 Flow meter system

Publications (3)

Publication Number Publication Date
ITTO910433A0 ITTO910433A0 (it) 1991-06-07
ITTO910433A1 ITTO910433A1 (it) 1992-12-07
IT1252600B true IT1252600B (it) 1995-06-19

Family

ID=24132622

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910433A IT1252600B (it) 1990-06-08 1991-06-07 Sistema flussometrico per gas di respirazione

Country Status (5)

Country Link
US (1) US5038773A (it)
JP (1) JP2568763B2 (it)
DE (1) DE4118404C2 (it)
GB (1) GB2246865B (it)
IT (1) IT1252600B (it)

Families Citing this family (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363857A (en) * 1990-05-22 1994-11-15 Aerosport, Inc. Metabolic analyzer
US5119825A (en) * 1991-02-25 1992-06-09 Medical Graphics Corporation Multi-functional patient valve
US5203343A (en) * 1991-06-14 1993-04-20 Board Of Regents, The University Of Texas System Method and apparatus for controlling sleep disorder breathing
USD342135S (en) 1991-10-28 1993-12-07 Critikon, Inc. Airway adapter
JP3566285B2 (ja) * 1991-11-14 2004-09-15 ユニバーシティー テクノロジーズ インターナショナル インコーポレイテッド 自動ｃｐａｐシステム
US5277196A (en) * 1992-03-31 1994-01-11 The United States Of America As Represented By The Department Of Health And Human Services Portable spirometer with improved accuracy
US5379650A (en) * 1992-09-23 1995-01-10 Korr Medical Technologies Inc. Differential pressure sensor for respiratory monitoring
US5535633A (en) * 1992-09-23 1996-07-16 Korr Medical Technologies, Inc. Differential pressure sensor for respiratory monitoring
US5448071A (en) * 1993-04-16 1995-09-05 Bruce W. McCaul Gas spectroscopy
US5625189A (en) * 1993-04-16 1997-04-29 Bruce W. McCaul Gas spectroscopy
US5502660A (en) * 1994-03-24 1996-03-26 Medical Graphics Corporation Dynamic gas density compensation in pulmonary gas analyzer systems
US5398695A (en) * 1994-03-24 1995-03-21 Medical Graphics Corporation Cardiopulmonary performance analyzer having dynamic transit time compensation
US5564432A (en) * 1994-07-13 1996-10-15 Thomson; Ronald A. Biodegradable air tube and spirometer employing same
US5816246A (en) * 1994-09-15 1998-10-06 Mirza; M. Zubair Electronic pocket spirometer
US5540732A (en) * 1994-09-21 1996-07-30 Medtronic, Inc. Method and apparatus for impedance detecting and treating obstructive airway disorders
DE4440161A1 (de) * 1994-11-10 1996-05-15 Mueller & Sebastiani Elek Gmbh Meßkopfaufsatz
US5584300A (en) * 1995-08-24 1996-12-17 Arocom Ltd. Measurement of lung air capacity
US5969266A (en) * 1996-06-04 1999-10-19 Dieterich Technology Holding Corp. Flow meter pitot tube with temperature sensor
WO1997048338A1 (en) 1996-06-21 1997-12-24 Desert Moon Development Limited Partnership Resistive element and calibrated air tube for spirometer
US5715831A (en) * 1996-06-21 1998-02-10 Desert Moon Development Limited Partnership Calibrated air tube for spirometer
US5997483A (en) * 1996-06-21 1999-12-07 Desert Moon Development Limited Partnership Individualized and calibrated air tube for spirometer
US5743270A (en) * 1996-06-21 1998-04-28 Desert Moon Development Limited Partnership Resistive element for spirometer
US5676131A (en) * 1996-07-11 1997-10-14 Medical Graphics Corporation System for protecting sample line in respiratory gas analyzer
US5789660A (en) 1996-07-15 1998-08-04 Novametrix Medical Systems, Inc. Multiple function airway adapter
US7335164B2 (en) 1996-07-15 2008-02-26 Ntc Technology, Inc. Multiple function airway adapter
WO1998004309A2 (en) * 1996-07-27 1998-02-05 Zygmunt Podolec Device for controlled administration of medicines
US5857459A (en) * 1997-02-04 1999-01-12 Medical Graphics Corporation Boxless measurement of thoracic gas volume
US6309360B1 (en) 1997-03-17 2001-10-30 James R. Mault Respiratory calorimeter
US6203502B1 (en) 1997-03-31 2001-03-20 Pryon Corporation Respiratory function monitor
US6099481A (en) 1997-11-03 2000-08-08 Ntc Technology, Inc. Respiratory profile parameter determination method and apparatus
US6572561B2 (en) 1998-01-16 2003-06-03 Healthetech, Inc. Respiratory calorimeter
US6402698B1 (en) 1998-02-05 2002-06-11 James R. Mault Metabolic calorimeter employing respiratory gas analysis
EP1102564A1 (en) 1998-08-03 2001-05-30 MAULT, James R. Method and apparatus for respiratory gas analysis employing measurement of expired gas mass
US6435183B1 (en) 1998-09-23 2002-08-20 Brentwood Medical Technology Corp. Flow sensing device
US6406435B1 (en) 1998-11-17 2002-06-18 James R. Mault Method and apparatus for the non-invasive determination of cardiac output
US6367475B1 (en) 1999-04-02 2002-04-09 Korr Medical Technologies, Inc. Respiratory flow meter and methods of use
US6723055B2 (en) 1999-04-23 2004-04-20 Trustees Of Tufts College System for measuring respiratory function
US6287264B1 (en) 1999-04-23 2001-09-11 The Trustees Of Tufts College System for measuring respiratory function
US7094206B2 (en) 1999-04-23 2006-08-22 The Trustees Of Tufts College System for measuring respiratory function
CA2372658A1 (en) 1999-05-10 2000-11-16 James R. Mault Airway-based cardiac output monitor and methods for using same
US6962155B1 (en) * 1999-07-30 2005-11-08 Universite De Montreal Target drive ventilation gain controller and method
US6899684B2 (en) * 1999-08-02 2005-05-31 Healthetech, Inc. Method of respiratory gas analysis using a metabolic calorimeter
US6468222B1 (en) 1999-08-02 2002-10-22 Healthetech, Inc. Metabolic calorimeter employing respiratory gas analysis
EP1217942A1 (en) 1999-09-24 2002-07-03 Healthetech, Inc. Physiological monitor and associated computation, display and communication unit
US6478736B1 (en) 1999-10-08 2002-11-12 Healthetech, Inc. Integrated calorie management system
US6612306B1 (en) 1999-10-13 2003-09-02 Healthetech, Inc. Respiratory nitric oxide meter
US6629934B2 (en) 2000-02-02 2003-10-07 Healthetech, Inc. Indirect calorimeter for medical applications
US6482158B2 (en) 2000-05-19 2002-11-19 Healthetech, Inc. System and method of ultrasonic mammography
US20030208133A1 (en) * 2000-06-07 2003-11-06 Mault James R Breath ketone analyzer
JP2004503887A (ja) 2000-06-16 2004-02-05 ヘルセテック　インコーポレイテッド 携帯情報端末用音声認識装置
AU2001296456A1 (en) 2000-09-29 2002-04-08 Healthetech, Inc. Indirect calorimetry system
US6607387B2 (en) 2000-10-30 2003-08-19 Healthetech, Inc. Sensor system for diagnosing dental conditions
US6585662B1 (en) 2001-01-19 2003-07-01 Boston Medical Technologies, Inc. Pneumotachometer
AU2002250237A1 (en) * 2001-03-02 2002-09-19 Healthetech, Inc. A system and method of metabolic rate measurement
AU2002305428B2 (en) * 2001-05-07 2007-11-08 Philips Rs North America Llc Portable pressure transducer, pneumotach for use therewith, and associated methods
US6718982B2 (en) 2001-05-07 2004-04-13 Mark A. Smith Face mask incorporating respiratory flow sensor
US20030023181A1 (en) * 2001-07-26 2003-01-30 Mault James R. Gas analyzer of the fluorescent-film type particularly useful for respiratory analysis
GB2379026A (en) * 2001-08-23 2003-02-26 L M Technical Services Ltd Pitot flow meters
US20030105407A1 (en) * 2001-11-30 2003-06-05 Pearce, Edwin M. Disposable flow tube for respiratory gas analysis
KR100432640B1 (ko) * 2001-12-05 2004-05-22 차은종 일회용 호흡관을 사용하는 호흡 유량 계측장치
US7291114B2 (en) * 2002-04-01 2007-11-06 Microlife Corporation System and method of determining an individualized drug administration protocol
USD478660S1 (en) 2002-07-01 2003-08-19 Healthetech, Inc. Disposable mask with sanitation insert for a respiratory analyzer
US20050010125A1 (en) * 2002-11-26 2005-01-13 Joy James A. Systems and methods for respiration measurement
DK3542869T3 (da) * 2004-08-27 2021-04-12 Univ Johns Hopkins Engangssøvn- og åndedrætsmonitor
WO2006034227A2 (en) * 2004-09-20 2006-03-30 California Pacific Medical Center Face mask
CN101547716B (zh) * 2005-11-16 2013-06-26 心肺技术公司 旁流型呼吸气体监测系统和方法
US20080119753A1 (en) * 2006-11-16 2008-05-22 Cardiopulmonary Technologies, Inc. Premature infant side-stream respiratory gas monitoring sensor
US10076268B1 (en) 2007-02-22 2018-09-18 The United States Of America As Represented By The Administrator Of National Aeronautics And Space Administration Portable unit for metabolic analysis
US7607360B2 (en) * 2007-08-27 2009-10-27 Nihon Kohden Corporation Adaptor for flow sensor
HU229884B1 (hu) 2008-11-17 2014-11-28 Piston Kft Légzésdiagnosztikai áramlásmérõ eszköz
JP5211361B2 (ja) * 2009-02-17 2013-06-12 日本光電工業株式会社 呼気導入ガイド、呼吸気濃度測定センサ、および呼吸気流量測定センサ
JP5206975B2 (ja) * 2009-02-17 2013-06-12 日本光電工業株式会社 エアウェイアダプタ、呼吸気濃度センサ、および呼吸気流量センサ
US8088091B2 (en) * 2009-03-09 2012-01-03 New Jersey Institute Of Technology No clog shunt using a compact fluid drag path
AU2012225239A1 (en) * 2011-03-09 2013-10-17 The Johns Hopkins University Apparatus for quantifying respiratory and inspiratory airflow
US9157774B2 (en) 2011-12-12 2015-10-13 Koninklijke Philips N.V. Differential pressure flow sensor
GB2539121B (en) 2012-03-15 2017-03-22 Fisher & Paykel Healthcare Ltd Respiratory gas humidification system
BR112014026771B1 (pt) 2012-04-27 2022-03-15 Fisher & Paykel Healthcare Limited Aparelho de umidificação para sistema de umidificação respiratória
AU2013302298B2 (en) 2012-08-12 2017-12-07 Vpas Group Pty Ltd Gas flow indicator
USD703560S1 (en) * 2012-08-12 2014-04-29 Matthew Matusik Gas flow indicator
USD703559S1 (en) * 2012-08-12 2014-04-29 Matthew Matusik Housing for gas flow indicator
USD703558S1 (en) * 2012-08-12 2014-04-29 Matthew Matusik Housing for gas flow indicator
USD703561S1 (en) * 2012-08-12 2014-04-29 Matthew Matusik Gas flow indicator
USD712767S1 (en) * 2013-02-12 2014-09-09 Matthew Matusik Gas flow indicator
USD708080S1 (en) * 2013-02-12 2014-07-01 Matthew Matusik Housing for gas flow indicator
USD713276S1 (en) * 2013-02-12 2014-09-16 Matthew Matusik Housing for gas flow indicator
USD712766S1 (en) * 2013-02-12 2014-09-09 Matthew Matusik Gas flow indicator
US9986935B2 (en) 2013-06-26 2018-06-05 MGC Diagnostics Corporation On-airway pulmonary function tester
CA2826516C (en) * 2013-08-30 2020-09-22 Protecsom Amerique Du Nord Inc. Flow measuring apparatus and inhalation apparatus comprising the same
GB2580554B (en) 2013-09-13 2020-12-30 Fisher & Paykel Healthcare Ltd Connections for humidification system
US10449319B2 (en) 2014-02-07 2019-10-22 Fisher & Paykel Healthcare Limited Respiratory humidification system
EP4670770A3 (en) * 2014-06-03 2026-01-07 Fisher & Paykel Healthcare Limited A humidification chamber for a respiratory therapy apparatus
GB201500257D0 (en) 2015-01-08 2015-02-25 Univ Surrey A flow meter
US10226193B2 (en) 2015-03-31 2019-03-12 Medtronic Ps Medical, Inc. Wireless pressure measurement and monitoring for shunts
KR101808691B1 (ko) * 2015-06-25 2017-12-14 충북대학교 산학협력단 중환자 호흡 모니터링 시스템 및 방법
US10271788B2 (en) 2016-02-26 2019-04-30 MGC Diagnostics Corp. Apparatus and method for measuring energy expenditure using indirect calorimetry
EP3551978B1 (en) 2016-12-07 2022-01-26 Fisher&Paykel Healthcare Limited Sensing arrangements for medical devices
US10307558B2 (en) 2016-12-29 2019-06-04 Vpas Group Pty Ltd Gas flow indicator device
CA174887S (en) * 2017-03-02 2018-05-10 Smart Respiratory Products Ltd Peak flow meter
AU2018293924B2 (en) 2017-06-28 2024-05-30 Vpas Group Pty Ltd Gas flow indicator device
US11660019B2 (en) * 2017-11-15 2023-05-30 Protecsom Amérique Du Nord Inc. Flow measuring apparatus and inhalation apparatus comprising the same
JP6389975B1 (ja) * 2018-02-26 2018-09-12 チェスト株式会社 フローセンサ及び呼吸機能検査装置
WO2020014632A1 (en) * 2018-07-13 2020-01-16 Onicon Incorporated Airflow sensor and system
DE202022107124U1 (de) * 2021-12-21 2023-01-18 Schako Kg Messvorrichtung zur Durchflussbestimmung eines strömenden Mediums durch einen Kanal
CN115364330B (zh) * 2022-09-01 2023-11-17 深圳北京大学香港科技大学医学中心 一种伽玛脑波中枢神经系统器质性疾病防治眼镜

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787999A (en) * 1951-09-13 1957-04-09 Bennett Vivian Ray Respiratory ventilation meter
US3098383A (en) * 1959-09-29 1963-07-23 Nat Res Dev Method and means for determining gas flow velocity
US3144769A (en) * 1960-04-04 1964-08-18 Brooks Instr Company Inc Means for measuring mass flow rate of fluid flow
US3196680A (en) * 1962-01-03 1965-07-27 Itt Flow tubes
US3232288A (en) * 1963-05-06 1966-02-01 Human Resources Foundation Respiratory analysis instrument
US3626755A (en) * 1970-04-09 1971-12-14 Hans Rudolph Inc Flow measuring apparatus
US3989037A (en) * 1970-06-23 1976-11-02 Siemens Aktiengesellschaft Flow measuring device
US3726271A (en) * 1970-07-02 1973-04-10 Cardio Pulmonary Inst Corp Spirometer with automatic electronic zeroing circuit
US4094508A (en) * 1976-05-21 1978-06-13 Kirsch Daniel D Combination pipe and game device
US4372169A (en) * 1977-04-08 1983-02-08 Vortech Sciences, Inc. Vortex generating mass flowmeter
US4297900A (en) * 1978-10-26 1981-11-03 Brandt Industries, Inc. Averaging pitot primary system
FR2457675A1 (fr) * 1979-05-29 1980-12-26 Research Dev Corp Pneumotachographe a tubes de pitot
DE2933116A1 (de) * 1979-08-16 1981-02-26 Rico Ges Fuer Microelektronik Einrichtung zur messung des atemluftstromes von patienten
US4403514A (en) * 1980-05-20 1983-09-13 Critikon, Inc. Pneumotachograph with pitot-like tubes
US4463764A (en) * 1981-09-29 1984-08-07 Medical Graphics Corporation Cardiopulmonary exercise system
US4453419A (en) * 1982-11-26 1984-06-12 Barber-Colman Company Device for sensing the volmetric flow rate of air in a duct
US4481829A (en) * 1983-02-01 1984-11-13 Shortridge Ernest R Manifold apparatus for airflow sensing equipment
DE3546912C2 (de) * 1985-08-16 2003-08-21 Oscar Sebastiani Vorrichtung zur Lungenfunktionsanalyse
US4768386A (en) * 1986-08-14 1988-09-06 Cambridge Filter Corp. Air pressure measurement element and system incorporating same
US4765326A (en) * 1987-04-20 1988-08-23 Minnesota Mining And Manufacturing Company Low-flow alarm system for powdered air-purifying respirator

Also Published As

Publication number Publication date
DE4118404C2 (de) 1995-12-07
US5038773A (en) 1991-08-13
ITTO910433A1 (it) 1992-12-07
ITTO910433A0 (it) 1991-06-07
GB2246865A (en) 1992-02-12
JP2568763B2 (ja) 1997-01-08
JPH05111473A (ja) 1993-05-07
DE4118404A1 (de) 1991-12-12
GB2246865B (en) 1993-12-15
GB9112301D0 (en) 1991-07-24

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970628