An obturator plug is provided with a thin circumferential deformable sealing skirt integrally formed on and protruding from the plug, engaging the inwardly facing wall of a female catheter fitting to form an improved obturator-catheter assembly having a catheter secured to its proximal end in a female...http://www.google.fr/patents/US4137916?utm_source=gb-gplus-shareBrevet US4137916 - Catheter plug assembly
