FLUID DELIVERY APPARATUS

摘要

This invention is 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 distending membrane (34), a chamber (46) having a fluid outlet (52). 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 (52). The apparatus (30) also includes a highly novel fluid flow indicator (100) that provides a readily discernible visible indication of fluid flow through the apparatus (30). Additionally, the apparatus (30) includes a fill assembly (150d) comprising a prefilled vial (170) that can be used to fill the fluid reservoir (46) of the device (30) with a selected medicinal fluid.