Patent ID: 7156838
Filing Date: 2007-01-02
Classification: A61M

Abstract:
1. A drug delivery device for indicating the delivery of a substance comprising: a housing; a cartridge in said housing, said cartridge defining an internal reservoir adapted to contain a pre-selected amount of a substance to be delivered to a patient, thereby defining a pre-selected dose; a dispensing member comprising an elastic member for contacting said cartridge operable to apply a dispensing pressure to said cartridge, said elastic member having a first position wherein said reservoir contains the dose and a second position, wherein said reservoir does not contain the dose; an indicator responsive to said elastic member for indicating that said dose is dispensed from said cartridge, and; at least one skin penetrating member, said skin penetrating member having a length sufficient to penetrate at least the stratum corneum of the skin of said patient, said skin penetrating member adapted for selective fluid communication with said reservoir for delivering a substance in said reservoir to the patient; wherein said dispensing member further comprises a cover hinged to said housing, said elastic member having a first end fixed to said cover and a second free end; and wherein said indicator is visible through said cover when said elastic member is in said second position and is not visible through said cover when said elastic member is in said first position.