A thoracic drainage catheter, or chest tube, is a soft, flexible tube that is used to drain excess air, fluid, or pus from the chest region. Physicians apply it when a patient has issues such as lung infections, trauma, or following chest surgery. The tube enables the lungs to expand normally by draining the area around them, allowing the patient to breathe more comfortably. GSTC's... http://www.gstc.com/product/thoracic-drainage-catheter/