Control of pressure for breathing comfort

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United States of America Patent

PATENT NO 11850361
SERIAL NO

17340722

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A respiratory treatment apparatus generates an indication of inspiration or expiration based on a measure of motor current of a flow generator. In an example, first and second current signals are derived from the measurement. The first derived current signal may be a long term measure or average of current and the second derived current signal may be a short term measure or average of current. A processor 120 determines an indication of inspiration or expiration as a function of the first and second derived current signals. The function of the first derived current signal and the second derived current signal may be a comparison of the derived current signals. The derived signals may be determined by filtering. The indication of inspiration or expiration may serve as a trigger or cycle control for changing treatment pressure in synchrony with patient respiration without measured signals from pressure, flow or speed sensors.

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Patent Owner(s)

  • RESMED MOTOR TECHNOLOGIES, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fleming, David James Cardiff, US 16 24
Grunberg, Michael Canoga Park, US 4 8

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