Cook Simple Pneumothorax Aspiration Accessory Set, 14 FR X 30cm, Chest Drain Valve, Male Luer Lock, Latex Free, Sterile, Each

Used in conjunction with pneumothorax aspiration catheters if incomplete expansion of the lung persists after mechanical aspiration of air. Connection of the one-way Cook Chest Drain Valve to the catheter permits continued re-expansion of the lung by natural forces, preventing inadvertent backflow of air into the pleural space.