A catheter introduction syringe for the introduction of a catheter or catheter guide wire into a patient's body, the catheter introduction syringe comprises a hollow substantially cylindrical syringe barrel to support a needle thereon having a substantially cylindrical plunger slidably disposed therein,...http://www.google.es/patents/US4813938?utm_source=gb-gplus-sharePatente US4813938 - Catheter introduction syringe
