Patent ID: 7347839

Claim:
An indwelling catheter comprising: a tube arranged in a longitudinal direction; a female connector having a hollow form opened at its front and rear ends and being provided on a rear portion of the tube in a state of communicating with the rear portion, wherein an opening taper portion tapered forwardly is formed in a longitudinal intermediate portion of an internal circumferential surface of the female connector; and an elastically deformable hemostasis valve is provided longitudinally slidably in the opening taper portion of the female connector and an inside portion extending rearwardly from the opening taper portion, the hemostasis valve being made of a single member and including: a body having a hollow form opened at its front and rear ends, the body being elastically deformed in a radially inward direction by sliding forwardly in the opening taper portion, and also being urged rearwardly by resilient force due to said elastic deformation, wherein a front portion and a rear portion of the body are each formed as a large-diameter portion having a diameter larger than an inside diameter of a rear end of the opening taper portion; and an openable/closable portion having a forwardly projecting tapered shape molded integrally with the front end of the body to close the front end opening of the body, the openable/closable portion having a front end portion to be opened in the radially outward direction by elastic deformation of the body in the radially inward direction.