A venting catheter, system and method are provided for withdrawing blood and other fluids from a patient's heart to facilitate decompressing the heart during cardioplegic arrest and cardiopulmonary bypass, without the need for a thoracotomy and without puncturing the aorta, pulmonary artery, or heart...http://www.google.de/patents/US6579259?utm_source=gb-gplus-sharePatent US6579259 - Endovacular cardiac venting catheter and method