Patent ID: 8419691
Filing Date: 2013-04-16
Classification: A61M,B65D

Abstract:
1. A method for a time controlled micro-dosing of a liquid from a liquid reservoir, the method comprising: receiving the liquid reservoir with a structure wherein the structure is portable; securing the liquid reservoir to the structure; providing a drive unit with a first end and a second end, and having a drive motor, wherein the drive unit comprises an anti-rotation element that extends radially outward from the periphery of the drive unit through a longitudinal slot formed through the structure and through a sleeve coupled to the structure; connecting the second end of the drive unit to a displacement piston disposed within the liquid reservoir; activating the drive motor; displacing the drive unit and drive motor with respect to the structure towards the displacement piston in an axial direction; moving the displacement piston axially within the liquid reservoir; and micro-dosing the liquid from the liquid reservoir, wherein