Implantable hemodialysis access device

A - Human Necessities – 61 – M

Patent

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Details

A61M 39/02 (2006.01) A61M 1/14 (2006.01)

Patent

CA 2407643

A hemodialysis port (10) comprising a flexible housing member (25) defining one or more ports (3a,3b,3c). Each port (3a,3b,3c) has a selectively-permeable septum member (20a,20b,20c) disposed thereon to permit medical devices, for exam-ple, Huber needles (35), sheath and/or dilators to be inserted therein. At the interface between the housing (25) and the septum (20a,20b,20c), a spring member (21a,21b,21c) is provided to provide an axial force on the septum (20a,20b,20c) which seals the puncture created by the aforementioned medical devices. In one exemplary embodiment, the hemodialysis access port (10) of the present invention is comprised of a plurality of ports (3a,3b,3c) designed for multiple hemodialysis treatments over the life of the port. In other exemplary embodiments, the bottom (16a,16b,16c) of each port may comprise a needle stop insert formed of, for example, metal, titanium, stainless steel or ceramic.

Cette invention se rapporte à un port d'hémodialyse comprenant un logement souple définissant un ou plusieurs ports. Chaque port possède une membrane sélectivement perméable, qui permet à des dispositifs médicaux tels que aiguilles de Huber, gaines et dilatateurs d'être introduits dans ledit port. A l'interface entre le logement et la membrane est prévu un ressort exerçant une force axiale sur la membrane, ce qui rend étanche la piqûre créée par lesdits dispositifs médicaux. Dans un mode de réalisation servant d'exemple, ce port d'accès pour hémodialyse comprend plusieurs ports destinés à des traitements d'hémodialyse multiples sur toute la durée de vie du port. Dans d'autres modes de réalisation servant d'exemple, le fond de chaque port peut comporter une pièce faisant office de butée pour l'aiguille, cette pièce étant constituée par exemple de métal, de titane, d'acier inoxydable ou de céramique.

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