×

Osmotic delivery systems and piston assemblies for use therein

  • US 20080091176A1
  • Filed: 08/08/2007
  • Published: 04/17/2008
  • Est. Priority Date: 08/09/2006
  • Status: Active Grant
First Claim
Patent Images

1. An osmotic delivery system for delivering an active agent formulation to a fluid environment, comprising:

  • a reservoir comprising a lumen that contains the active agent formulation and an osmotic agent formulation; and

    a piston assembly positioned in the lumen to isolate the active agent formulation from the osmotic agent formulation;

    wherein the piston assembly comprises a body constructed and arranged for positioning in the lumen, the body being made of a polymeric material that is resistant to leaching in an organic solvent, and the body further comprising means for engaging and sealing against a wall of the reservoir.

View all claims
  • 9 Assignments
Timeline View
Assignment View
    ×
    ×