Implantable medication dosage device for injection of a liquid medication into a living organism

摘要

A filter arrangement is inserted in a medication track of an implantable dosage device between a medication reservoir and the medication dosage pump, characterized by the arrangement being fashioned of at least two-ply membrane filter, whose first membrane is composed of non-woven polypropylene fiber-fleece oriented opposite the flow direction of the medication and the second membrane being arranged downstream of the first membrane and being composed of a polypropylene fabric.