The present invention describes a device for placement in the thoracic cavity of a patient. The device is a cannula, tube or catheter for chest drainage. The device serves as a conduit for drainage of excessive fluid or air buildup in the chest to a receptacle outside the body. The device also serves...http://www.google.fr/patents/US7695467?utm_source=gb-gplus-shareBrevet US7695467 - Method and apparatus for chest drainage