Apparatus and method for promoting fluid uptake into an implant

Abstract

The invention pertains to apparatuses, means and methods to promote uptake of fluids into a reservoir of an implantable drug delivery system though a porous membrane. Embodiments of the invention promote fluid uptake by creating a pressure differential between the reservoir of the drug delivery device and the environment of the device after implantation, for instance a subcutaneous pocket.

What is claimed is: 
     
         1 . An accessory unit for promoting fluid uptake into an implantable drug delivery device, the drug delivery device being disposed within a tubular outer member of an apparatus to promote fluid uptake into the drug delivery device, the accessory unit comprising:
 a first chamber having a septum suitable for accessing the first chamber with the tubular outer member and for maintaining a sealing mechanism around the tubular outer member after accessing the first chamber; and   a second chamber, the first chamber and the second chamber being connected through a valved connector, the second chamber configured for holding liquid for uptake into the implant.