Breathing assistance apparatus
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United States of America Patent
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Jun 20, 2006
Issued Date -
N/A
app pub date -
Sep 9, 2002
filing date -
Sep 23, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A valve for use in a CPAP system or any stem at a pressure above ambient which vents the pressurised gases from the blower during expiration. Due to the pressure-flow characteristics of the blower this results in the patient having a much lower airway pressure during expiration making breathing easier. The valve includes a movable member which blocks flow from the blower to the patient during exhalation and vents externally. During inhalation gases flow normally from the blower to the patient. Also disclosed is a further application as an antiasphyxia.
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