Indwelling catheter

摘要

An indwelling catheter including: a hollow catheter base having a tip and a back end, the back end being able to receive and connect a male connector; a tube provided at the tip of the catheter base; a flexible hemostasis valve installed inside the catheter base; a pusher installed at a back of the hemostasis valve; and a pusher guide installed between the pusher and the catheter base. The pusher has a hollow constitution whose taper reduces in diameter facing its tip. The pusher guide is able to restrict a position of the pusher at a first position where the pusher does not push open the hemostasis valve and a second position where the taper of the pusher is positioned inside the hemostasis valve and pushes open the hemostasis valve.

主权项

1. An indwelling catheter comprising:
a hollow catheter base having a tip and a back end, the back end being able to receive and connect a male connector configured to be inserted from a back end side exterior; a tube provided at the tip of the catheter base; a flexible hemostasis valve installed inside the catheter base; a pusher installed at a back of the hemostasis valve; and a pusher guide installed between the pusher and an inner wall of the catheter base; wherein: the pusher has a hollow constitution and a taper that decreases in diameter at a tip of the pusher; the pusher guide is configured to restrict movement of the pusher between a first position in which the pusher does not push open the hemostasis valve, and a second position in which the pusher does push open the hemostasis valve and the taper of the pusher is positioned inside the hemostasis valve; and a coil spring for moving the pusher is not provided within the catheter base.