Patent ID: 7488305
Filing Date: 2009-02-10
Classification: A61M

Abstract:
1. A dose delivery device for delivering a desired dose to an injection site within a patient's body, comprising: a housing; a carriage assembly located within the housing, the carriage assembly sized to accept a removable carpule of therapeutic and movable from a retracted position to an advanced position; a first lumen in fluid communication with the carriage assembly; a carpule of therapeutic positioned in the carriage assembly, the carpule of therapeutic removable from the carriage assembly, therapeutic within the carpule being releasable from the carpule into the first lumen; a dose delivery actuator; and a dose metering member operable from outside the housing, the dose metering member having a first position and a second position different from said first position; wherein the dose delivery actuator has a starting position, a first stopped position in which said dose delivery actuator is engaged with said dose metering member when said dose metering member is in its first position, and a second stopped position in which said dose delivery actuator is engaged with said dose metering member when said dose metering member is in its second position; wherein when the dose metering member is in its first position and the dose delivery actuator is actuated from its starting position, the dose delivery actuator moves from its starting position to its first stopped position, applying a force to the carpule to eject a first desired dose; and wherein when the dose metering member is in its second position and the dose delivery actuator is actuated from its starting position, the dose delivery actuator moves from its starting position to its second position, applying a force to the carpule to eject a second desired dose different than the first desired dose.