Activity responsive therapeutic delivery system
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United States of America Patent
Stats
-
Jul 27, 1999
Grant Date -
N/A
app pub date -
Apr 22, 1997
filing date -
Apr 22, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
One or more physical activity sensors, such as pressure switches, position sensors and accelerometers, as well as a breath sensor are connected to control a valve. The valve is electrically actuated and has first and second states. A control circuit between the sensors and the valve increase actuation of the valve when continuing activity is sensed. The valve has a single coil and is bistable so that it does not require continuous energization in either state. The fluid is preferably respiratory oxygen so that more oxygen is delivered when the person is active.
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Family
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