FIELD: medicine. SUBSTANCE: method involves delivering treatment member like radiation source through catheter to a selected area in patient hollow organ lumen like in coronary artery for suppressing cicatricial tissue formation in restenosis case after performing balloon plastic operation on blood vessels. One or several treatment members like capsule or granule containing radioactive material are positioned in blood vessel lumen and are movable along the lumen between the proximal and distal end zones under action of liquid flow. Balloon shell is usable for performing plastic repair operation on blood vessels. EFFECT: enhanced effectiveness of treatment; accelerated wound healing. 35 cl, 58 dwg
