ATE423326T1 - Für mri/nmr geeignetes ventil für die gaszuführung eines ventilators und damit verbundene verfahren der gaszuführung - Google Patents

Für mri/nmr geeignetes ventil für die gaszuführung eines ventilators und damit verbundene verfahren der gaszuführung

Info

Publication number
ATE423326T1
ATE423326T1 AT04714611T AT04714611T ATE423326T1 AT E423326 T1 ATE423326 T1 AT E423326T1 AT 04714611 T AT04714611 T AT 04714611T AT 04714611 T AT04714611 T AT 04714611T AT E423326 T1 ATE423326 T1 AT E423326T1
Authority
AT
Austria
Prior art keywords
gas supply
spool
mri
fan
valve body
Prior art date
Application number
AT04714611T
Other languages
English (en)
Inventor
Kenneth Bolam
James Davidson
James Borgen
Original Assignee
Medi Physics 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
Application filed by Medi Physics Inc filed Critical Medi Physics Inc
Application granted granted Critical
Publication of ATE423326T1 publication Critical patent/ATE423326T1/de

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
    • F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
    • F16K11/0712—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides comprising particular spool-valve sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5601—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves
AT04714611T 2003-02-26 2004-02-25 Für mri/nmr geeignetes ventil für die gaszuführung eines ventilators und damit verbundene verfahren der gaszuführung ATE423326T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45020903P 2003-02-26 2003-02-26

Publications (1)

Publication Number Publication Date
ATE423326T1 true ATE423326T1 (de) 2009-03-15

Family

ID=32927621

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04714611T ATE423326T1 (de) 2003-02-26 2004-02-25 Für mri/nmr geeignetes ventil für die gaszuführung eines ventilators und damit verbundene verfahren der gaszuführung

Country Status (12)

Country Link
US (1) US20070144523A1 (de)
EP (1) EP1599740B1 (de)
JP (1) JP2006519064A (de)
KR (1) KR20050103238A (de)
CN (1) CN1754103A (de)
AT (1) ATE423326T1 (de)
AU (1) AU2004214924A1 (de)
CA (1) CA2515467A1 (de)
DE (1) DE602004019497D1 (de)
DK (1) DK1599740T3 (de)
ES (1) ES2321101T3 (de)
WO (1) WO2004077085A2 (de)

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US20080242974A1 (en) * 2007-04-02 2008-10-02 Urbahn John A Method and apparatus to hyperpolarize materials for enhanced mr techniques
DE102007039664B4 (de) * 2007-08-22 2015-01-22 Robert Bosch Gmbh Pneumatisches Wegeventil mit einem reibungsarmen Ventilschieber
US8457706B2 (en) 2008-05-16 2013-06-04 Covidien Lp Estimation of a physiological parameter using a neural network
WO2009149355A1 (en) 2008-06-06 2009-12-10 Nellcor Puritan Bennett Llc Systems and methods for monitoring and displaying respiratory information
US8302602B2 (en) 2008-09-30 2012-11-06 Nellcor Puritan Bennett Llc Breathing assistance system with multiple pressure sensors
US8393323B2 (en) 2008-09-30 2013-03-12 Covidien Lp Supplemental gas safety system for a breathing assistance system
US8434479B2 (en) 2009-02-27 2013-05-07 Covidien Lp Flow rate compensation for transient thermal response of hot-wire anemometers
WO2011060204A2 (en) * 2009-11-11 2011-05-19 The Board Of Trustees Of The Leland Stanford Jr. University Ventilation systems and methods
US8469030B2 (en) 2009-12-01 2013-06-25 Covidien Lp Exhalation valve assembly with selectable contagious/non-contagious latch
US8439037B2 (en) 2009-12-01 2013-05-14 Covidien Lp Exhalation valve assembly with integrated filter and flow sensor
US8439036B2 (en) 2009-12-01 2013-05-14 Covidien Lp Exhalation valve assembly with integral flow sensor
US8469031B2 (en) 2009-12-01 2013-06-25 Covidien Lp Exhalation valve assembly with integrated filter
US8434481B2 (en) 2009-12-03 2013-05-07 Covidien Lp Ventilator respiratory gas accumulator with dip tube
USD655809S1 (en) 2010-04-27 2012-03-13 Nellcor Puritan Bennett Llc Valve body with integral flow meter for an exhalation module
USD655405S1 (en) 2010-04-27 2012-03-06 Nellcor Puritan Bennett Llc Filter and valve body for an exhalation module
USD653749S1 (en) 2010-04-27 2012-02-07 Nellcor Puritan Bennett Llc Exhalation module filter body
US8714154B2 (en) 2011-03-30 2014-05-06 Covidien Lp Systems and methods for automatic adjustment of ventilator settings
US9452409B2 (en) 2011-04-22 2016-09-27 Vanderbilt University Para-hydrogen polarizer
US9629971B2 (en) 2011-04-29 2017-04-25 Covidien Lp Methods and systems for exhalation control and trajectory optimization
US9364624B2 (en) 2011-12-07 2016-06-14 Covidien Lp Methods and systems for adaptive base flow
US9498589B2 (en) 2011-12-31 2016-11-22 Covidien Lp Methods and systems for adaptive base flow and leak compensation
US9144658B2 (en) 2012-04-30 2015-09-29 Covidien Lp Minimizing imposed expiratory resistance of mechanical ventilator by optimizing exhalation valve control
US10362967B2 (en) 2012-07-09 2019-07-30 Covidien Lp Systems and methods for missed breath detection and indication
USD731049S1 (en) 2013-03-05 2015-06-02 Covidien Lp EVQ housing of an exhalation module
US10213575B2 (en) * 2013-03-07 2019-02-26 Koninklijke Philips N.V. Valve
USD744095S1 (en) 2013-03-08 2015-11-24 Covidien Lp Exhalation module EVQ internal flow sensor
USD701601S1 (en) 2013-03-08 2014-03-25 Covidien Lp Condensate vial of an exhalation module
USD693001S1 (en) 2013-03-08 2013-11-05 Covidien Lp Neonate expiratory filter assembly of an exhalation module
USD731065S1 (en) 2013-03-08 2015-06-02 Covidien Lp EVQ pressure sensor filter of an exhalation module
USD736905S1 (en) 2013-03-08 2015-08-18 Covidien Lp Exhalation module EVQ housing
USD731048S1 (en) 2013-03-08 2015-06-02 Covidien Lp EVQ diaphragm of an exhalation module
USD692556S1 (en) 2013-03-08 2013-10-29 Covidien Lp Expiratory filter body of an exhalation module
US9950135B2 (en) 2013-03-15 2018-04-24 Covidien Lp Maintaining an exhalation valve sensor assembly
RU2678359C2 (ru) * 2013-10-18 2019-01-28 Андреас ГУТЦАЙТ Система для управления током крови и способ получения изображений в живом организме
US9808591B2 (en) 2014-08-15 2017-11-07 Covidien Lp Methods and systems for breath delivery synchronization
US20160061337A1 (en) * 2014-09-02 2016-03-03 Plant Oil Powered Diesel Fuel Systems, Inc. Dual Piston Valve for Flow Control of Two Distinct Liquid Fuels
US10738746B1 (en) * 2014-09-02 2020-08-11 Alafei Foods Limited Dual piston valve for flow control of two distinct liquid fuels
US9950129B2 (en) 2014-10-27 2018-04-24 Covidien Lp Ventilation triggering using change-point detection
US10337638B2 (en) * 2014-12-01 2019-07-02 National Oilwell Varco, L.P. Slow-shift SPM valve
USD775345S1 (en) 2015-04-10 2016-12-27 Covidien Lp Ventilator console
EP3793656A1 (de) 2018-05-14 2021-03-24 Covidien LP Systeme und verfahren zur erfassung der atemleistung unter verwendung von signalverzerrung
US11752287B2 (en) 2018-10-03 2023-09-12 Covidien Lp Systems and methods for automatic cycling or cycling detection
CN110081956A (zh) * 2019-04-29 2019-08-02 新乡航空工业(集团)有限公司 可变粘度滑油微小流量标准装置
WO2021188909A1 (en) * 2020-03-19 2021-09-23 The Regents Of The University Of California Mechanical ventilator with a fixed number of orifice plates to generate constant flow paths
US11896767B2 (en) 2020-03-20 2024-02-13 Covidien Lp Model-driven system integration in medical ventilators
US11872349B2 (en) 2020-04-10 2024-01-16 Covidien Lp Systems and methods for increasing ventilator oxygen concentration
WO2021207600A1 (en) 2020-04-10 2021-10-14 Covidien Lp Gas mixing system for medical ventilator

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JPS5011553Y1 (de) * 1973-03-16 1975-04-10
FR2297642A1 (fr) * 1975-01-17 1976-08-13 France Etat Appareil respiratoire de plongee autonome
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BR9911346A (pt) * 1998-06-17 2001-03-13 Medi Physics Inc Dispositivo de transporte de gás hiperpolarizado e método de transporte associado
DE10000675C2 (de) * 2000-01-11 2001-11-15 Otten Ernst Wilhelm Lineardurchführung, Vorrichtung und Verfahren zur hochproduktiven Erzeugung von hoch kernspinpolarisiertem Helium-3 Gas

Also Published As

Publication number Publication date
DE602004019497D1 (de) 2009-04-02
JP2006519064A (ja) 2006-08-24
WO2004077085A2 (en) 2004-09-10
KR20050103238A (ko) 2005-10-27
ES2321101T3 (es) 2009-06-02
EP1599740B1 (de) 2009-02-18
US20070144523A1 (en) 2007-06-28
DK1599740T3 (da) 2009-06-08
CA2515467A1 (en) 2004-09-10
CN1754103A (zh) 2006-03-29
AU2004214924A1 (en) 2004-09-10
WO2004077085A3 (en) 2004-11-04
EP1599740A2 (de) 2005-11-30

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