초록 ▼

An apparatus for accurately infusing medicinal agents into an ambulatory patient at specific rates over extended periods of time. The apparatus is of a compact, low profile, laminate construction and includes an elastic distendable membrane, chamber having a fluid outlet. Disposed within the fluid c

An apparatus for accurately infusing medicinal agents into an ambulatory patient at specific rates over extended periods of time. The apparatus is of a compact, low profile, laminate construction and includes an elastic distendable membrane, chamber having a fluid outlet. Disposed within the fluid chamber is a thin fluid permeable member which precisely controls the rate of fluid flow through the fluid outlet. The apparatus also includes a highly novel fluid flow indicator that provides a readily discernible visible indication of fluid flow through the apparatus. Additionally, the apparatus includes a fill assembly comprising a prefilled vial that can be used to fill the fluid reservoir of the device with a selected medicinal fluid.

대표청구항 ▼

[ What is claimed is:] [1.]1. A fluid delivery apparatus comprising:(a) a base assembly having a fixedly located fluid outlet, a fluid delivery passageway defining a flow path in communication with said fluid outlet and a receiving chamber interconnected with said fluid passageway;(b) a stored energ

[ What is claimed is:] [1.]1. A fluid delivery apparatus comprising:(a) a base assembly having a fixedly located fluid outlet, a fluid delivery passageway defining a flow path in communication with said fluid outlet and a receiving chamber interconnected with said fluid passageway;(b) a stored energy means connected to said base assembly to define a fluid reservoir having a fluid inlet in communication with said fluid passageway, said stored energy means being distendable by fluid introduced into said reservoir through said fluid inlet, said fluid establishing stresses within said stored energy means, said stresses tending to return said stored energy means toward a less distended configuration;(c) a cover assembly connected to said base assembly to define a housing;(d) fill means operably associated with said housing and being in communication with said reservoir for filling said reservoir; and(e) flow rate control means carried by said housing for controlling the rate of fluid flow from said reservoir toward said fluid outlet via said flow path, said flow rate control means comprising a control member carried by said housing, said control member traversing said flow path and having first and second spaced apart flow restrictors selectively movable into alignment with said flow path by movement of said control member from a first position wherein said first flow regulator is aligned with said flow path to a second position wherein said second flow restrictor is aligned with said flow path.