Unitary sample-vent-valve assembly

A unitary sample-vent-valve assembly comprising:

• a tubing connector having a first end and a second end, said first end being adapted for attachment to accessory patient tubing and said second end terminating in a first flange having first and second concentric ribs on the face thereof, said second rib being of greater diameter than said first rib;
• a tubular body having a second flange at one end thereof joined to said tubing connector and adapted to engage a fluid line at the other end thereof, said second flange having a circular recess on its face to cooperatively engage said second rib and align said tubular body with said tubing connector, said tubular body defining at least one first opening through its sidewall and a second opening through its sidewall;
• valve means retained between said first and second flanges, said first rib forming a seat for said valve means;
• vent means formed of a semi-permeable material layer overlying said first opening, and
• sampling means formed of a resealable, pierceable material overlying said second opening.