Apparatus and method for removing gasses from a liquid

A - Human Necessities – 61 – M

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A61M 5/36 (2006.01) B01D 19/00 (2006.01)

Patent

CA 2542115

Medical devices (112) for removing gasses, such as gas bubbles and/or dissolved gasses, from a liquid to be delivered to a patient, and methods of use and making of such devices (112). In at least some embodiments, a gas permeable membrane material is used in the construction of the gas removal devices. In some embodiments, layers of (52, 54) gas permeable membrane material are used to construct a filter structure (50) for removing gas from the liquid. In other embodiments, hollow tubes and/or fibers of the gas permeable membrane material are used to construct a filter structure for removing gas from the liquid. The gas removal devices (112) may be used in any of a broad variety of liquid delivery systems and/or configurations.

L'invention concerne des dispositifs médicaux servant à éliminer des gaz, tels que des bulles de gaz et/ou des gaz dissous, dans un liquide devant être administré à un patient, ainsi que des procédés d'utilisation et de production de ces dispositifs. Dans quelques formes de réalisation au moins, un matériau membranaire perméable au gaz est utilisé pour former ces dispositifs d'élimination de gaz. Certaines formes de réalisation comportent des couches de matériau membranaire perméable au gaz formant une structure de filtre qui permet d'éliminer le gaz contenu dans le liquide. Des formes de réalisation différentes comportent des tubes et/ou des fibres creuses en matériau membranaire, formant une structure de filtre servant à éliminer les gaz contenus dans le liquide. Ces dispositifs d'élimination de gaz peuvent être utilisés dans un système quelconque d'administration de liquide compris dans un large éventail de tels systèmes.

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