Dispensing device

Abstract

An inhaler, comprising an electrohydrodynamic comminution means, a means for partially or fully discharging the liquid comminution and a conduit through which the liquid comminution is administered, wherein the discharging means is arranged to be activated by inhalation of the user.

1 . A dispensing device comprising an electrohydrodynamic comminution site, a supplier adapted to supply liquid to the comminution site and an induction charger adapted to charge the comminution site to an electrical potential to cause comminution of the liquid, wherein the induction charger is spaced from the comminution site and is arranged to charge the comminution site to the electrical potential that comminutes the liquid by inducing electrical charge at the comminution site, wherein the induced electrical charge controls at least one of droplet size and flow rate.  
   
   
       2 . The dispensing device of  claim 1  wherein the droplet size is in the range from about 0.1 microns to about 500 microns in diameter.  
   
   
       3 . The dispensing device of  claim 1  wherein the flow rate is from about 0.1 microliters per second to 500 microliters per second.  
   
   
       4 . The dispensing device of  claim 1  wherein the induced electric charge is modified with time.