Devices and methods are provided for temporarily inducing cardioplegic arrest in the heart of a patient and for establishing cardiopulmonary bypass in order to facilitate surgical procedures on the heart and its related blood vessels. Specifically, a catheter based system is provided for isolating...http://www.google.co.uk/patents/US5814016?utm_source=gb-gplus-sharePatent US5814016 - Endovascular system for arresting the heart