Pressure control in CPAP treatment or assisted respiration
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United States of America Patent
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Feb 6, 2001
Grant Date -
N/A
app pub date -
Apr 20, 1998
filing date -
Sep 18, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The pressure of breathable gas exiting a flow generator (10) is controlled by adjusting the efficiency of the flow generator. In one embodiment, a baffle plate (44) of a control element (40) can restrict the open entry area of a motor (16) driven turbine (18) of the flow generator. In another form, the degree of opening of the mouth of the flow generator inlet (20), and hence the pneumatic impedance, can be controlled, as in a similar manner can the impedance outlet (22).
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