Process and signal processing unit for determining a pneumatic parameter with the use of a lung-mechanical model and of a gradient model

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United States of America Patent

PATENT NO 11890416
APP PUB NO 20210205561A1
SERIAL NO

17142762

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Abstract

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A process and a signal processing unit determine a pneumatic parameter (Pmus) for the spontaneous breathing of a patient. The patient is ventilated mechanically by a ventilator. A lung-mechanical model (20) and a gradient model (22) are preset. The lung-mechanical model (20) describes a relationship between the pneumatic parameter (Pmus) as well as a volume flow signal (Vol′), a volume signal (Vol) and/or a respiratory signal (Sig), which can be measured. The gradient model (22) describes a value for the pneumatic parameter (Pmus) as a function of N chronologically earlier values of the pneumatic parameter (Pmus) or of a variable correlating with the pneumatic parameter (Pmus). N values for the correlating variable are determined at first. At least one additional value is subsequently determined for the pneumatic parameter (Pmus). N chronologically earlier values of the correlating variable, current signal values, the lung-mechanical model (20) and the gradient model (22) are used for this purpose.

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Patent Owner(s)

Patent OwnerAddress
DRÄGERWERK AG & CO KGAA23558 LÜBECK

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eger, Marcus Lübeck, DE 33 305
Grasshoff, Jan Lübeck, DE 3 1
Petersen, Eike Lübeck, DE 5 1
Rostalski, Philipp Lübeck, DE 17 30

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