Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1996-05-23
1998-05-26
Lewis, Aaron J.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820418, 12820423, 12820712, A62B 700
Patent
active
057552240
ABSTRACT:
An oxygen management device adapted to mount on a post on a compressed oxygen cylinder. The device includes a manifold block which is attached to the oxygen cylinder post. A pressure regulator is mounted directly on and is integral with the manifold block for reducing the oxygen pressure to a desired level. The manifold block also mounts an overpressure relief valve, a solenoid operated flow control valve, a bypass valve, a continuous flow restrictor and a pressure gauge. The manifold and the components mounted thereon, a control circuit and a battery for operating the control circuit are mounted in an annular housing which has a central opening for receiving the oxygen cylinder post. The control circuit senses when a patient inhales in a nasal cannula and opens the flow control valve to deliver a predetermined dose of oxygen to the nasal cannula at the beginning of inhalation. The volume of the low pressure oxygen passages in the manifold block are minimized to enhance the responsiveness of the device in delivering a dose of oxygen to a patient.
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Brochure on the PulseDose Portable Compressed Oxygen Systems, DeVilbiss Division of Sunrise Medical, 1994.
Dalton, Jr. Richard L.
Gilchrist Jon Peter
Good Gregory W.
Lewis Aaron J.
Sewastava V.
Sunrise Medical HHG Inc.
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