Patent ID: 7694892
Filing Date: 2010-04-13
Classification: A61L,A61M,B05B

Abstract:
1. Liquid droplet spray system for atomising a liquid substance, the liquid droplet spray system comprising: a liquid droplet spray device including a housing in which a space is provided, said space being arranged to receive said liquid substance, the housing including a perforated membrane having one or more perforations and covering said space such that said liquid substance may exit the space and the device by traversing the one or more perforations of said perforated membrane, a reservoir for containing said liquid substance, a fluidic interface comprising a fluid channel arranged to connect said reservoir to said space in said housing thereby conveying liquid substance contained in said reservoir to said space by way of capillary action, a valve arranged between said reservoir and said fluidic interface comprising said fluid channel for controlling access of said liquid substance from said reservoir to said fluid channel, an electromechanical actuation means arranged to actuate liquid substance in said space such that the liquid substance undergoes a vibration and contacts the perforated membrane thereby traversing the one or more perforations as a liquid droplet spray, and electronic control means arranged to at least control said electromechanical actuation means, wherein said reservoir and said valve are arranged in a first, disposable part, and said liquid droplet spray device, said electromechanical actuation means, said electronic control means and said fluidic interface are arranged in a second, non-disposable part such that said reservoir does not directly contact said fluid channel, said valve ensuring that said first, disposable part is liquid tight when not in use.