CATHETER HAVING VALVE MECHANISM

摘要

An improved catheter having a closed distal end and a valve adjacent th e distal end which communicates the lumen of the catheter with the exterior of the catheter to permit the infusion or aspiration of fluids between the catheter and the vessel in which the catheter is positioned. The valve is preferably in a plane which i s oriented at an ankle to the longitudinal axis of the catheter, and is preferably in an area of reduced wall thickness to facilitate opening and closing.