Device for providing a breathing gas flow enriched with anesthetic

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United States of America Patent

PATENT NO 10821256
APP PUB NO 20170224947A1
SERIAL NO

15426370

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Abstract

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A method and device, for enriching a gas flow with an anesthetic, include a gas mixer (1), with gas inlets (2a, 2b) and one or more gas outlets (3a, 3b), and an anesthetic dispenser (4) connected to the one or more gas outlets. The anesthetic dispenser at least partially enriches the gas flow to provide a breathing gas flow enriched with anesthetic at a patient connector (5). A control valve (7a) is arranged fluidically in series with the anesthetic dispenser (4). The gas outlet is connected to the patient connector (5) via a gas channel (8), arranged fluidically parallel to the anesthetic dispenser (4) and in which at least another control valve (7b) is arranged. A control unit (6) actuates at least one control valve as a function of a desired value for an anesthetic concentration in the breathing gas flow to change anesthetic concentration at the patient connector (5).

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Patent Owner(s)

Patent OwnerAddress
DRÄGERWERK AG & CO KGAA23558 LÜBECK

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bartels, Uwe Lübeck, DE 13 38
Heesch, Ralf Lübeck, DE 31 151
Manigel, Jürgen Hamburg, DE 11 46
Pilz, Ulf Lübeck, DE 3 4
Radomski, Klaus Lübeck, DE 17 286
Wruck, Norbert Lübeck, DE 15 198

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