Abstract: The present invention relates to an introducer assembly. The introducer assembly includes a sheath and a hub assembly interconnected with the proximal end of the sheath, the hub assembly including a body defining an interior passageway in fluid communication with the lumen of the sheath, the body having a proximal end and a distal end. A valve assembly is positioned within the interior passageway of the body, the valve assembly having a valve member, the valve member being at least partially movable from a first position to a second position with respect to the valve collar. A vacuum chamber positioned distal to the valve assembly and in fluid communication with the interior passageway of the body and the lumen of the sheath, the vacuum chamber including a vacuum port.

Abstract: Drainage catheters configured to be visible by echogenicity and/or echopacity are provided. Drainage catheters including layers or marker bands configured to be visible by echogenicity and/or echopacity are further provided.