Chest tubes. They're really not that complicated.
D004322:Drainage / Q000295:instrumentation / Q000379:methods*; D006491:Hemothorax / Q000451:nursing*; D006801:Humans; D007440:Intubation / Q000451:nursing*; D010994:Pleura; D011030:Pneumothorax / Q000451:nursing; D013396:Suction