Nasal mask for use in intermittent positive pressure ventilation therapy
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United States of America Patent
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Feb 24, 2004
Grant Date -
N/A
app pub date -
Feb 3, 2000
filing date -
Feb 4, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A nasal mask for use with a system for supplying air with a therapeutic gas to the airways of a patient includes a mask shell which is adapted to be put over the nose of the patient using the nasal mask; an air inlet port through which air is supplied from an air source; an exhaust port, provided in the mask shell, for discharging the exhalation gas to atmosphere; and a therapeutic gas inlet port, provided on the mask shell adjacent to the exhaust port. The therapeutic gas port is fluidly connected to a therapeutic gas source which supplies a therapeutic gas at a constant flow rate. The therapeutic gas port is oriented toward a portion of the inside volume of the nasal mask over the nose of the face of the patient using the nasal mask.
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