The present invention is directed to a port needle that is adapted to penetrate skin, tissue and/or a septum of a port to transfer fluid into a port chamber of the port, the port needle comprising at least one lumen defining at least one inner surface, the lumen being adapted to transfer the fluid from the distal section to the proximal section and at least one membrane defining at least one outer surface of the proximal section, wherein the outer surface of the proximal section comprises nickel (Ni) and/or any Ni compound with a content of at most 0.05% and/or being adapted to release at most 0.2 µg/cm2/week of Ni and/or of any Ni compound.
