Patent ID: 7828770
Filing Date: 2010-11-09
Classification: A61M

Abstract:
1. A fluid delivery device for dispensing medicaments to a patient comprising: (a) a supporting structure; (b) a pre-filled collapsible container containing the medicaments to be dispensed to the patient, said container having a continuous wall formed of a single material carried by said supporting structure, said continuous wall comprising a bellows-like side wall, a neck portion connected to said bellows-like side wall and a bottom wall integrally formed with said side wall, said bottom wall including a cup-shaped portion which, upon the collapse of said collapsible container, is disposed in close proximity to said neck portion, said collapsible container comprising an hermetically sealed reservoir having an outlet port and including sealing means for sealing said outlet port said sealing means comprising a top wall integrally formed with said side wall; and (c) stored energy means carried by said supporting structure and operably associated with said collapsible reservoir for delivering a non-linear force tending to collapse said collapsible reservoir to expel fluid therefrom, said stored energy means comprising an elongated, pre-stressed strip of spring material having a length and a cross-sectional mass that varies along said length.