WO2007040755A3 - Portable ventilator system - Google Patents

Portable ventilator system Download PDF

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Publication number
WO2007040755A3
WO2007040755A3 PCT/US2006/029309 US2006029309W WO2007040755A3 WO 2007040755 A3 WO2007040755 A3 WO 2007040755A3 US 2006029309 W US2006029309 W US 2006029309W WO 2007040755 A3 WO2007040755 A3 WO 2007040755A3
Authority
WO
WIPO (PCT)
Prior art keywords
ventilator
noise
roots
monitoring
noise reducing
Prior art date
Application number
PCT/US2006/029309
Other languages
French (fr)
Other versions
WO2007040755A2 (en
Inventor
Douglas F Devires
David Boyle
Michael Holmes
Malcolm Williams
Original Assignee
Pulmonetic Systems Inc
Douglas F Devires
David Boyle
Michael Holmes
Malcolm Williams
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 Pulmonetic Systems Inc, Douglas F Devires, David Boyle, Michael Holmes, Malcolm Williams filed Critical Pulmonetic Systems Inc
Publication of WO2007040755A2 publication Critical patent/WO2007040755A2/en
Publication of WO2007040755A3 publication Critical patent/WO2007040755A3/en

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    • 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
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0051—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes with alarm devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0057—Pumps therefor
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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
    • A61M16/0057—Pumps therefor
    • A61M16/0063—Compressors
    • A—HUMAN NECESSITIES
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    • A61M16/0057—Pumps therefor
    • A61M16/0066—Blowers or centrifugal pumps
    • A61M16/0069—Blowers or centrifugal pumps the speed thereof being controlled by respiratory parameters, e.g. by inhalation
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    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • A61M16/026—Control means therefor including calculation means, e.g. using a processor specially adapted for predicting, e.g. for determining an information representative of a flow limitation during a ventilation cycle by using a root square technique or a regression analysis
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    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/201—Controlled valves
    • A61M16/202—Controlled valves electrically actuated
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    • H—ELECTRICITY
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    • A61M2016/0015—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors
    • A61M2016/0018—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical
    • A61M2016/0021—Accessories therefor, e.g. sensors, vibrators, negative pressure inhalation detectors electrical with a proportional output signal, e.g. from a thermistor
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    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
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    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • A61M2016/0036—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the breathing tube and used in both inspiratory and expiratory phase
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    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
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    • A61M2230/43—Composition of exhalation
    • A61M2230/435—Composition of exhalation partial O2 pressure (P-O2)

Abstract

A portable ventilator uses a Roots-type blower as a compressor to reduce both the size and power consumption of the ventilator. Various functional aspects of the ventilator are delegated to multiple subassemblies having dedicated controllers and software that interact with a ventilator processor to provide user interface functions, exhalation control and flow control servos, and monitoring of patient status. The ventilator overcomes noise problems through the use of a noise attenuating system comprising noise reducing pressure compensating orifices on the Roots blower housing and multiple noise reducing chambers. The ventilator is configured with a highly portable form factor, and may be used as a stand-alone device or as a docked device having a docking cradle with enhanced interface and monitoring capabilities.
PCT/US2006/029309 2005-09-23 2006-07-27 Portable ventilator system WO2007040755A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/234,636 US8156937B2 (en) 2003-08-04 2005-09-23 Portable ventilator system
US11/234,636 2005-09-23

Publications (2)

Publication Number Publication Date
WO2007040755A2 WO2007040755A2 (en) 2007-04-12
WO2007040755A3 true WO2007040755A3 (en) 2007-11-22

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Application Number Title Priority Date Filing Date
PCT/US2006/029309 WO2007040755A2 (en) 2005-09-23 2006-07-27 Portable ventilator system

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US (1) US8156937B2 (en)
WO (1) WO2007040755A2 (en)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
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