Device for placement in the thoracic cavity of a patient. The device is a cannula, tube or catheter for pericardial drainage and serves as a conduit for drainage of excessive fluid in the pericardial cavity to a receptacle outside the body. The device is placed in the pericardial cavity at the time of...http://www.google.ca/patents/US20070135795?utm_source=gb-gplus-sharePatent US20070135795 - Method and apparatus for delayed pericardial drainage
