ATRIUM thoracic drains are non-invasive disposable systems of multi-chamber vessels with valves, port and suction regulators, fluid or air collection chamber, vacuum and leakage indicators and suction connectors designed to: evacuate fluids or air from the chest cavity or mediastinomediante succión and collect them in the container or chamber ofdesecho. Help restore the lungs expansion and restore respiratory dynamics, by means of the achieved drainage. Facilitate the early evaluation of postoperative patients who require chest drainage, through the achieved drainage.