A flap structure for retention of the catheter

摘要

PROBLEM TO BE SOLVED: To prevent the sense of discomfort to be imparted to an operator by a great resistance when a male connector of a drip infusion circuit, etc., is inserted into a hemostatic valve as the hemostatic valve is arranged in the inlet of a housing.;SOLUTION: This catheter has a catheter tube 2 which is connected to the distal end side of a catheter base 1, the hemostatic valve 3 which is disposed in the medium region of the catheter base 1 and a pusher 4 which is freely slidably disposed within the catheter base in order to operate opening and closing of the hemostatic valve 3. The hemostatic valve 3 is constituted by forming a valve hole slit 3a at the center of its front end face and forming a pusher socket 3b on the opening side of the rear end. The pusher socket 3b slidably and unremovably holds the outer periphery of the pusher 4. Air vent grooves 3c are formed on the outer periphery of the hemostatic valve 3. The air vent grooves 3c vent air in such a manner that the hemostatic valve 3 has no air resistance and can be smoothly slid in the catheter base 1.;COPYRIGHT: (C)2002,JPO