A catheter system for intraluminal laser surgery is disclosed. The catheter system comprises an elastically expansible catheter sheath housing a plurality of optical fibers arranged in a circular array about an inflatable balloon. Inflation and deflation of the balloon expands and contracts the diameters...http://www.google.de/patents/US5395361?utm_source=gb-gplus-sharePatent US5395361 - Expandable fiberoptic catheter and method of intraluminal laser transmission