Patent ID: 8652104

Claim:
A catheter assembly comprising: a catheter hub having an open proximal end and a distal end, with an inner surface extending therebetween and defining an interior cavity of the catheter hub, and a catheter tube extending distally from the catheter hub distal end; a rigid actuator extending proximally in the interior cavity of the catheter hub from the catheter hub distal end to a free end; and a seal member disposed in the interior cavity of the catheter hub, the seal member including a membrane, a distal portion extending distally from the membrane to a sealing outlet bore, and a biasing member between the sealing outlet bore and the distal end of the catheter hub, the distal portion having an actuator cavity therein between the membrane and the sealing outlet bore, the actuator extending through the sealing outlet bore into the actuator cavity, the membrane being normally closed, the seal member being axially shiftable along the actuator in a distal direction to force the membrane over the free end of the actuator and open the membrane, the biasing member configured to axially shift the seal member along the actuator in a proximal direction to force the membrane back over the free end of the actuator and close the membrane, the biasing member being partially compressed when the membrane is closed.