medical apparatus and instrument for curing stenosis, based on photochemical effect, photothermal effect and photomechanical effect; ultraviolet ray lamps for medical purposes; lasers for medical purposes for curing stenosis, based on photochemical effect, photothermal effect and photomechanical effect; lasers for surgical purposes; medical apparatus for curing stenosis, based on photochemical effect, photothermal effect and photomechanical effect; laser scalpel for medical purposes; surgical...