Patent ID: 7827983
Filing Date: 2010-11-09
Classification: A61M

Abstract:
1. An inhaler, comprising: a drop ejector; a housing; a reservoir operatively disposed in the housing and in fluid communication with the drop ejector, the reservoir containing a pharmaceutically active ingredient; a chamber containing an antagonist of the pharmaceutically active ingredient, the chamber operatively disposed in the housing and selectively fluidly coupled to the reservoir; electronic circuitry operatively controlling the drop ejector and the fluid coupling of the chamber to the reservoir; and a cartridge removably disposed within the housing, the cartridge having disposed therein the reservoir, the chamber, and a sensing device adapted to be operatively connected to the inhaler and adapted to sense at least one predetermined fault condition; wherein in response to obtaining information indicative of the at least one predetermined fault condition, the electronic circuitry renders the reservoir in fluid communication with the chamber such that the antagonist is mixed with the pharmaceutically active ingredient, thereby rendering the pharmaceutically active ingredient substantially ineffective.