IMPLANTABLE MEDICATION DELIVERY DEVICE USING PRESSURE REGULATOR

摘要

An implantable medication delivery apparatus (10) including a flow path (32) coupling a medication reservoir (24) to a device outlet port (16) where the flow path (32) includes a regulator means (36) for limiting the magnitude of pressure transferred downstream from the medication reservoir (24). The regulator means (36) is configured to respond to the reservoir pressure exceeding a certain threshold for closing a valve located downstream from the reservoir (24). The valve (36) closure functions to isolate the device outlet port (16) from further reservoir pressure increases which otherwise could induce unintended medication flow from the device outlet port (16).