Patent ID: 7749191
Filing Date: 2010-07-06
Classification: A61M

Abstract:
1. A drug delivery device comprising: a drug cartridge having a proximal end and a distal end, said drug cartridge defining a fluid passageway configured to contain a predetermined amount of a drug within said fluid passageway; a first retention barrier positioned within the fluid passageway of the drug cartridge between said drug and the proximal end of the drug cartridge; a second pharmaceutically acceptable retention barrier positioned within the fluid passageway of the drug cartridge between said drug and the distal end of the drug cartridge; a first closed end portion associated with the proximal end of the drug cartridge; a second closed end portion associated with the distal end of the drug cartridge; and a pressure source configured to removably couple to the proximal end of the drug cartridge to form a fluid connection with the fluid passageway of the drug cartridge, said connection configured to channel a pressurized fluid controllably released from the pressure source into the proximal end of the drug cartridge and through the fluid passageway of the drug cartridge toward the distal end of the drug cartridge to expel the predetermined amount of the drug and at least the second pharmaceutically acceptable retention barrier from the distal end of the drug cartridge.