Patent ID: 6585698
Filing Date: 2003-07-01
Classification: A61M,G16H

Abstract:
A medication delivery pen, comprising:a housing having opposing proximal and distal ends; an actuator disposed in the proximal end of the housing for setting and administering a dosage of medication; a medication-containing cartridge assembly having a cartridge with a pierceably sealed distal end, an open proximal end, and a piston in sliding fluid tight engagement within said cartridge, wherein the open proximal end is attachable to the distal end of the housing; a drive mechanism coupled between the actuator and the cartridge to exert an axial force on the piston to inject the set dosage of medication, wherein the actuator triggers the drive mechanism to administer the injection of medication held in the cartridge; a processor coupled to the actuator to determine a value equal to the dosage set by the actuator; a memory device coupled to the processor to store at least the dosage value determined by the processor; a display located on said housing and coupled to said processor for displaying information provided by said processor; and wherein in a first state said actuator engages with the drive mechanism to deliver the medication and in a second state is disengaged from the drive mechanism, said actuator in its second state serving as a user adjustable input for changing and setting mode parameters of at least one preselected mode of the pen.