A disposable reservoir cassette for use with a roller pump delivery system comprises a flexible reservoir tube, an air-permeable, liquid-impermeable element engaging one end of the reservoir tube, a pierceable delivery septum engaging the other end of the reservoir tube and a rigid housing containing...http://www.google.de/patents/US4685902?utm_source=gb-gplus-sharePatent US4685902 - Disposable reservoir cassette
