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. The apparatus also includes...http://www.google.de/patents/US20020177809?utm_source=gb-gplus-sharePatent US20020177809 - Variable rate infusion apparatus with indicator and adjustable rate control
