Airway adapters and suction catheter systems, and methods of using the same, are described herein. An exemplary airway adapter assembly may comprise a connector body portion having a first end and a second end. The connector body portion may define an elongate cavity having an axial center between the first and the second end. The exemplary airway adapter assembly may also comprise a valve coupled to the second end of the connector body. The exemplary airway adapter assembly may also comprise a ventilation base member comprising a tubular portion coupled to the second end of the connector body portion and ventilator port. The ventilator port may comprises a conduit having a first conduit end and a second conduit end, and the first conduit end may be coupled to the tubular portion through an articulable connection. An exemplary closed suction catheter system may comprise a suction control valve assembly and a closed suction catheter sheath.
