#$%^&*AU2012244299B220131205.pdf#####ABSTRACT A catheter assembly including: a catheter hub including a housing having an exterior surface and an interior surface defining a cavity； a catheter tube attached to the catheter hub and extending distally of the catheter 5 hub； a needle hub including a housing； a needle having a needle tip attached to the needle hub and projecting distally of the needle hub and into the catheter tube； a valve for limiting blood backflow positioned in the interior cavity of the catheter hub； a valve opener for opening the valve positioned proximally of the valve； and a passive or self-activating device for covering the needle, including a third housing accommodating a tip protector within the third housing for blocking the needle tip, the third housing having an arm extending 10 therefrom to engage the catheter hub. 181/11 t
