CA2523043A1 - Portable drag compressor powered mechanical ventilator - Google Patents

Portable drag compressor powered mechanical ventilator Download PDF

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Publication number
CA2523043A1
CA2523043A1 CA002523043A CA2523043A CA2523043A1 CA 2523043 A1 CA2523043 A1 CA 2523043A1 CA 002523043 A CA002523043 A CA 002523043A CA 2523043 A CA2523043 A CA 2523043A CA 2523043 A1 CA2523043 A1 CA 2523043A1
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CA
Canada
Prior art keywords
ventilator device
exhalation
oxygen
inspiratory
gas flow
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002523043A
Other languages
French (fr)
Other versions
CA2523043C (en
Inventor
Douglas F. Devries
Michael J. Cegielski
Warner V. Graves, Jr.
Malcolm R. Williams
Michael B. Holmes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bird Products Corp
Original Assignee
Bird Products Corporation
Douglas F. Devries
Michael J. Cegielski
Warner V. Graves, Jr.
Malcolm R. Williams
Michael B. Holmes
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
Family has litigation
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Application filed by Bird Products Corporation, Douglas F. Devries, Michael J. Cegielski, Warner V. Graves, Jr., Malcolm R. Williams, Michael B. Holmes filed Critical Bird Products Corporation
Publication of CA2523043A1 publication Critical patent/CA2523043A1/en
Application granted granted Critical
Publication of CA2523043C publication Critical patent/CA2523043C/en
Anticipated expiration legal-status Critical
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    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/206—Capsule valves, e.g. mushroom, membrane valves
    • A—HUMAN NECESSITIES
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    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
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    • 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
    • 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
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    • A61M2205/8212—Internal energy supply devices battery-operated with means or measures taken for minimising energy consumption
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2230/00—Measuring parameters of the user
    • A61M2230/40—Respiratory characteristics
    • A61M2230/46—Resistance or compliance of the lungs

Abstract

A ventilator device and system comprising a rotating compressor, preferably a drag compressor, which, at the beginning of each inspiratory ventilation phase, is accelerated to a sufficient speed to deliver the desired inspiratory gas flow, and is subsequently stopped or decelerated to a basal flow level to permit the expiratory ventilation phase to occur. The ventilator device is small and light weight enough to be utilized in portable applications. The ventilator device is power efficient enough to operate for extended periods of time on internal or external batteries. Also provided is an oxygen blending apparatus which utilizes solenoid valves having specific orifice sizes for blending desired amounts of oxygen into the inspiratory gas flow. Also provided is an exhalation valve having an exhalation flow transducer which incorporates a radio frequency data base to provide an attendant controller with specific calibration information for the exhalation flow transducer.
CA002523043A 1994-10-14 1997-04-03 Portable drag compressor powered mechanical ventilator Expired - Lifetime CA2523043C (en)

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US32417294A 1994-10-14 1994-10-14

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CA002201698A Division CA2201698C (en) 1997-04-03 1997-04-03 Portable drag compressor powered mechanical ventilator

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CA2523043C CA2523043C (en) 2009-10-27

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EP (4) EP1491227B1 (en)
JP (1) JP3502389B2 (en)
AT (4) ATE252403T1 (en)
BR (1) BR9509306A (en)
CA (1) CA2523043C (en)
DE (4) DE69533597T2 (en)
ES (3) ES2228992T3 (en)
WO (1) WO1996011717A1 (en)

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