A reusable injection catheter for use with a medication delivery system comprises a flexible conduit having a fluid path therethrough, a first cannula at the distal end of the conduit for insertion into the patient, a connector housing at the proximal end of the conduit having a passageway therethrough,...http://www.google.de/patents/US4790829?utm_source=gb-gplus-sharePatent US4790829 - Reusable injection catheter
