Patent ID: 7063684
Filing Date: 2006-06-20
Classification: A61M,Y10S

Abstract:
1. An apparatus for dispensing a medication fluid from a reservoir adapted to contain the fluid, the apparatus comprising: a reservoir cavity adapted to receive the reservoir; a drive system; at least one plunger slider having one end coupled to the drive system and the other end releasably coupled to the reservoir, wherein the at least one plunger slider is adapted to translate from a retracted position to an extended position to dispense the fluid from the reservoir in response to actuation by the drive system; a sealing ring mounted around the at least one plunger slider; and a spring disposed within the sealing ring, wherein the sealing ring with the spring disposed therein is adapted to allow the at least one plunger slider to translate from the retracted position to the extended position and to prevent entry of fluid from the reservoir cavity into the drive system.