Methods, systems and devices for delivering a diagnostic or therapeutic treatment, substance or device to a target area located within the body of a human or animal subject. A tissue penetrating catheter is positioned within a body lumen near the target area. A hollow penetrator is then advanced from...http://www.google.ca/patents/US8016814?utm_source=gb-gplus-sharePatent US8016814 - Guidewires and delivery catheters having fiber optic sensing components and related systems and methods