A multi-lumen balloon for use in a fluted balloon centering catheter and method for providing the same. The multi-lumen balloon maintains a radiation source at the center of a cardiovascular artery, has improved blood perfusion capability, and has improved balloon refolding characteristics. The method...http://www.google.co.uk/patents/US6540734?utm_source=gb-gplus-sharePatent US6540734 - Multi-lumen extrusion tubing
