CA2223288A1 - Intermittent gas-insufflation apparatus and method therefor - Google Patents

Intermittent gas-insufflation apparatus and method therefor

Info

Publication number
CA2223288A1
CA2223288A1 CA002223288A CA2223288A CA2223288A1 CA 2223288 A1 CA2223288 A1 CA 2223288A1 CA 002223288 A CA002223288 A CA 002223288A CA 2223288 A CA2223288 A CA 2223288A CA 2223288 A1 CA2223288 A1 CA 2223288A1
Authority
CA
Canada
Prior art keywords
gaseous fluid
patient
sensor signals
exhalation
valve assembly
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
CA002223288A
Other languages
French (fr)
Other versions
CA2223288C (en
Inventor
James Chua
Peter W. Salter
Francis J. Kelly
Robert Toshiaki Wada
Roy Yasuo Fujimoto
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.)
Salter Labs Inc
Original Assignee
Salter Labs
James Chua
Peter W. Salter
Francis J. Kelly
Robert Toshiaki Wada
Roy Yasuo Fujimoto
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 Salter Labs, James Chua, Peter W. Salter, Francis J. Kelly, Robert Toshiaki Wada, Roy Yasuo Fujimoto filed Critical Salter Labs
Publication of CA2223288A1 publication Critical patent/CA2223288A1/en
Application granted granted Critical
Publication of CA2223288C publication Critical patent/CA2223288C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • A61M16/0666—Nasal cannulas or tubing
    • A61M16/0672—Nasal cannula assemblies for oxygen therapy
    • A61M16/0677—Gas-saving devices therefor
    • 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
    • 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
    • A61M16/021—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
    • 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
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • 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

Abstract

An intermittent gas-insufflation apparatus insufflates a quantity of gaseous fluid into a patient during exhalation intervals of the breathing cycle. A
valve assembly actuates between a closed state and an open state to prevent or allow gaseous fluid flow from a source of gaseous fluid to the patient. A sensor detects changes in breathing pressure and generates sensor signals characteristic of the changes in the breathing pressure. A controller receives and processes the sensor signals during either the inhalation or exhalation interval or both and is responsive within the exhalation interval to the sensor signals to actuate the valve assembly into the opened state so that the gaseous fluid flows from the source of gaseous fluid to the entrance into the respiratory system of the patient during the exhalation interval. Methods are also described for embodiments of the invention and for maintenance of blood-oxygen concentration for a patient receiving oxygen.
CA002223288A 1995-06-07 1996-06-07 Intermittent gas-insufflation apparatus and method therefor Expired - Lifetime CA2223288C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/480,353 US5697364A (en) 1995-06-07 1995-06-07 Intermittent gas-insufflation apparatus
US08/480,353 1995-06-07
PCT/US1996/008689 WO1996040338A1 (en) 1995-06-07 1996-06-07 Intermittent gas-insufflation apparatus and method therefor

Publications (2)

Publication Number Publication Date
CA2223288A1 true CA2223288A1 (en) 1996-12-19
CA2223288C CA2223288C (en) 2009-01-13

Family

ID=23907640

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002223288A Expired - Lifetime CA2223288C (en) 1995-06-07 1996-06-07 Intermittent gas-insufflation apparatus and method therefor

Country Status (9)

Country Link
US (1) US5697364A (en)
EP (1) EP0831951B1 (en)
JP (2) JP3795527B2 (en)
AT (1) ATE211006T1 (en)
AU (1) AU715420B2 (en)
CA (1) CA2223288C (en)
DE (1) DE69618193T2 (en)
MX (1) MX9709750A (en)
WO (1) WO1996040338A1 (en)

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Also Published As

Publication number Publication date
AU715420B2 (en) 2000-02-03
DE69618193T2 (en) 2002-07-04
EP0831951B1 (en) 2001-12-19
DE69618193D1 (en) 2002-01-31
EP0831951A1 (en) 1998-04-01
JPH11506660A (en) 1999-06-15
US5697364A (en) 1997-12-16
WO1996040338A1 (en) 1996-12-19
JP2006150096A (en) 2006-06-15
ATE211006T1 (en) 2002-01-15
JP3795527B2 (en) 2006-07-12
CA2223288C (en) 2009-01-13
AU6252596A (en) 1996-12-30
MX9709750A (en) 1998-07-31

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