Fluid delivery apparatus and method of making same

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/168 (2006.01)

Patent

CA 2219884

An apparatus (30) for accurately infusing medicinal agents into an ambulatory patient at specific rates over extended periods of time. The apparatus (30) is of a compact, low profile laminate construction and includes an elastic distendable membrane (34), which, in cooperation with a thin planar base (32) defines a fluid chamber (46) having a fluid outlet. Disposed within the fluid chamber (46) is a thin fluid permeable member (66) which precisely controls the rate of fluid flow through the fluid outlet. The apparatus (30) also includes a highly novel fluid flow indicator (104) that provides a readily discernible visual indication of fluid flow through the apparatus (30).

L'invention se rapporte à un appareil (30) qui permet d'administrer avec précision par perfusion des agents médicinaux à un patient ambulatoire, selon des débits spécifiques et sur des durées données. L'appareil (30) présente une structure stratifiée compacte à profil bas et comporte une membrane élastique (34) pouvant être distendue (34) et qui, avec une mince base plane (32) définit un compartiment (46) de liquide pourvu d'un orifice de sortie de liquide. Dans le compartiment (46) de liquide se trouve une pièce (66) perméable aux liquides qui régule avec précision le débit du liquide par l'orifice de sortie de liquide. L'appareil (30) comporte également un indicateur (104) d'écoulement inédit qui donne une indication visuelle clairement lisible de l'écoulement du liquide à travers l'appareil (30).

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