Patent ID: 7988687
Filing Date: 2011-08-02
Classification: A61M

Abstract:
1. An infusion device for therapeutic use, comprising a waterproof covering which forms one of a casing, casing part or a container for storing the infusion device and monitoring means for monitoring the water-impermeability of the covering, the monitoring means comprising: a) a medium situated in the covering and having at least one physical or chemical parameter which changes in accordance with the impermeability of the covering; and b) information means which, if said parameter changes, automatically outputs an information signal, at least when the extent of the change signifies a loss of water-impermeability in the covering; wherein the medium is a gas or vapour which fills the inner space enveloped by the covering; and wherein the physical or chemical parameter is pressure, and the monitoring means comprises a pressure detector for the pressure prevailing in the inner space or a differential pressure between the inner space and the outer surroundings of the covering.