A system of catheter devices and methods for forming channels or passageways between a luminal anatomical structure (e.g., a blood vessel) and a target location (e.g., another blood vessel, an organ, a mass of tissue, etc.) for the purpose of rerouting blood flow or for delivering a substance or instrument,...http://www.google.com/patents/US6544230?utm_source=gb-gplus-sharePatent US6544230 - Catheters, systems and methods for percutaneous in situ arterio-venous bypass
Catheters, systems and methods for percutaneous in situ arterio-venous bypass
