Patent ID: 8211069

Claim:
A medical connector comprising: a housing with a central axis and a hollow bore having a first end and a second end; a valve member configured to at least partially extend into an interior space of the first end of the housing, the valve member comprising a first opened end, a second closed end, an internal passageway, and at least one opening near the closed end of the valve member extending through the valve member and into the passageway; a conduit in fluid communication with the second end and the first opened end of the valve member, the conduit and the first opened end of the valve member being moveable relative to each other along the central axis such that at least a portion of the valve member and the conduit overlap, thereby producing a change in volume in an interior region of the housing as the valve member moves from a first position to a second position, the volume of the interior region being larger in the first position than in the second position; and a priming cap comprising an internal fluid passageway removably attachable to an end of the medical connector; wherein the priming cap is configured to permit air to pass through the internal fluid passageway and exit the priming cap, while substantially preventing liquid from exiting the priming cap.