Patent ID: 6730060
Filing Date: 2004-05-04
Classification: A61M

Abstract:
An implantable device for administering a treatment solution comprising:a first housing body including: a first chamber having a refilling port sealed by a first puncturable septum; and a conveyance mechanism for conveying the solution out of the first chamber to an infusion site; a second housing body separately spaced from the first housing body and including a second chamber having an inlet port sealed by a second puncturable septum; a first fluid connection for connecting the first chamber to the infusion site; and a second fluid connection for connecting the second chamber to the infusion site, the second fluid connection including a pressure control valve for preventing flow of the solution from the second chamber to the infusion site when the solution is supplied to the second chamber at a pressure below a predetermined minimum pressure, wherein the pressure control valve opens only when the solution is supplied to the second chamber at a pressure above the predetermined minimum pressure.