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US6346552B1 Expired / Lapsed US ⏱️ 0.0 years remaining

Breathing gas mixture containing perfluorocarbons

Assignee: Draeger Medizintechnik GmbH
•
Filing: 1999-05-26
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Granted: 2002-02-12
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Expires: 2019-05-26
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Abstract

Abstract A breathing gas mixture is provided for the treatment of lung diseases, containing an amount of perfluorocarbon and oxygen containing 5 vol. % to 40 vol. % of perfluorocarbon relative to the amount of perfluorocarbon and oxygen. The amount of perfluorocarbon and oxygen in the breathing gas mixture ranges from about 20 vol. % to a maximum of 100 vol. % of the breathing gas mixture, and the remaining amount of up to about 80 vol. % contains one or more of the gases nitrogen, nitrogen monoxide and/or one or more anesthesia gases or noble gases, especially xenon. Perfluorohexane is an especially preferred perfluorocarbon.

Inventors

  • 👤 Detlev Michael Albrecht

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 17:00
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/10; A61M16/14; A61K; A61K33/00; A61K33/16; A61M16/08; A61M16/0816; A61M16/0841; A61M16/085; A61M16/18; A61M2202/00; A61M2202/02; A61M2202/0266; A61M2202/0275; A61M2202/04; A61M2202/0468; A61M2202/0476

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 28 words
A breathing gas mixture, comprising an amount of perfluorocarbon and oxygen with 5 vol. % to 40 vol. % perfluorocarbon relative to the amount of perfluorocarbon and oxygen.
Claim 2
Dependent Claim 28 words
A breathing gas mixture, comprising an amount of perfluorocarbon and oxygen with 5 vol. % to 40 vol. % perfluorocarbon relative to the amount of perfluorocarbon and oxygen.
Claim 3
Dependent Claim 68 words
The breathing gas mixture in accordance with claim 1 , wherein the percentage of perfluorocarbon and oxygen in the breathing gas mixture is about 20 vol. % to 100 vol. % of the breathing gas mixture and the remaining part of up to about 80 vol. % contains one or more of the gases nitrogen, nitrogen monoxide and/or one or more anesthesia gases or noble gases, especially xenon.
Claim 4
Dependent Claim 24 words
The breathing gas mixture in accordance with claim 1 , wherein the perfluorocarbon comprises one or more of the compounds perfluoropentane, perfluorohexane, and perfluorooctane.
Claim 5
Dependent Claim 15 words
The breathing gas mixture in accordance with claim 3 , wherein the perfluorocarbon is perfluorohexane.
Claim 6
Dependent Claim 29 words
A breathing gas mixture comprising: oxygen gas; a perfluorocarbon gas mixed with said oxygen to form an oxygen/perfluorocarbon blend with 5 vol. % to 40 vol. % perfluorocarbon gas.
Claim 7
Dependent Claim 29 words
A breathing gas mixture comprising: oxygen gas; a perfluorocarbon gas mixed with said oxygen to form an oxygen/perfluorocarbon blend with 5 vol. % to 40 vol. % perfluorocarbon gas.
Claim 8
Dependent Claim 37 words
A breathing gas mixture in accordance with claim 5 , further comprising: additional breathing gas mixed with said oxygen/perfluorocarbon blend, said oxygen/perfluorocarbon blend forming approximately 20 vol. % to 100 vol. % of the breathing gas mixture.
Claim 9
Dependent Claim 30 words
A breathing gas mixture in accordance with claim 6 , wherein: said additional breathing gas includes one or more of nitrogen gas, nitrogen monoxide gas, anesthesia gas and noble gas.
Claim 10
Dependent Claim 16 words
A breathing gas mixture in accordance with claim 7 , wherein: said noble gas includes xenon.
Claim 11
Dependent Claim 21 words
A breathing gas mixture in accordance with claim 6 , wherein: said additional breathing gas includes a plurality of anesthesia gases.
Claim 12
Dependent Claim 21 words
A breathing gas mixture in accordance with claim 6 , wherein: said additional breathing gas includes a plurality of noble gases.
Claim 13
Dependent Claim 26 words
A breathing gas mixture in accordance with claim 5 , wherein: said perfluorocarbon gas comprises one or more of perfluoropentane, perfluorohexane, perfluorooctane, perfluoro-Decalin and perfluorooctyl bromide.
Claim 14
Dependent Claim 24 words
A breathing gas mixture in accordance with claim 5 , wherein: said perfluorocarbon comprises one or more of perfluoropentane, perfluorooctane, perfluoro-Decalin and perfluorooctyl bromide.
Claim 15
Dependent Claim 41 words
A breathing gas mixture in accordance with claim 8 , wherein: said perfluorocarbon comprises one or more of perfluoropentane, perfluorohexane, perfluorooctane, perfluoro-Decalin and perfluorooctyl bromide; said additional breathing gas includes a plurality of anesthesia gases and a plurality of noble gases.

References Cited (Backward Citations)

US5228434A Cited
US5470885A Cited
US5733939A Cited
US5674913A Cited

USPTO Annuity & Maintenance Windows

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3.5 Years (Year 4) 2005-02-11 2005-08-13 2006-02-12 $2000.00 Window Closed / Lapsed
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