Cardio-vascular catheter for shooting a laser beam

摘要

This invention relates to a catheter for shooting a laser beam, comprising an optical fiber contained in a sheath, as well as an optical system, wherein said optical system obturates the distal end of said sheath, and, between the distal end of said optical fiber and said optical system, there is formed a chamber which is in communication with a supply conduit and with a return conduit for an optically neutral cooling fluid.