| abstract |
The invention is directed to a laser catheter ( 1 ) for bypass surgery, wherein the distal part ( 2 ) of the catheter ( 1 ) is provided with: a tubular arrangement ( 3 ) of optical fibres ( 4 ) having distal ends ( 5 ) defining a ring-shaped light emergence surface ( 6 ) for emitting a tubular bundle of light beams in the distal direction (D) of the catheter ( 1 ); and a stop surface ( 7 ) extending around the tubular arrangement ( 3 ) of optical fibres ( 4 ) and facing in the distal direction (D), the stop surface ( 7 ) being arranged at a distance (A) proximally from the light emergence surface ( 6 ). The light emergence surface ( 6 ) slants at a slanting angle (α) in the range of [20°, 60°] with respect to the longitudinal axis ( 8 ) of the catheter ( 1 ). The invention further relates to an assembly comprising such a catheter. |