METHODS AND APPARATUS FOR BYPASSING ARTERIAL OBSTRUCTIONS AND/OR PERFORMING OTHER TRANSVASCULAR PROCEDURES

摘要

This invention concerns methods, devices, and systems for re-vascularization, and/or performing other medical procedures at vascular or non-vascular intra-corporeal locations within a mammalian body. The methods generally comprise the formation of at least one extravascular passageway (10a) from a blood vessel to a vascular or non-vascular target location. In the re-vascularization methods the extravascular passageway is utilized for blood flow. In the medical procedure methods the extravascular passageway (10a) is utilized as a conduit for accessing or performing procedures at the vascular or non-vascular target location. Also disclosed are catheter devices and systems which are useable to form the extravascular passageways (10a, 10b) of the invention, as well as apparatus for modifying, maintaining and/or closing such extravascular passageways.