Patent ID: 6287295
Filing Date: 2001-09-11
Classification: A61K

Abstract:
An osmotic delivery system plug for controlling a delivery rate of a beneficial agent in an osmotic delivery system, the plug comprising:a semipermeable body having:a recess having an interior surface beginning at an opening in the body and ending at a depth surface within the semipermeable body;a liquid contact surface located opposite the depth surface;an outer surface located opposite the interior surface, the outer surface having means for sealing an environment of use from an inside of an enclosure of an osmotic delivery system in which the body is insertable;a predetermined plug thickness defined by the location of the depth surface relative to the liquid contact surface; anda predetermined wall width defined by the location of the outer surface relative to the interior surface, at least one of the predetermined plug thickness and predetermined wall width for controlling a rate of liquid permeation through the semipermeable body.