FIELD: medical engineering; surgery. SUBSTANCE: flexible catheter 1 is positioned inside stretched spiral 3 made of elastic material. Catheter has section 2 of higher flexibility at its end. One of ends of spiral 3 is secured on catheter 1 on boundary of section 2, and the other end is made for controllable coupling to liquid source designed to increase volume of higher flexibility section 2. EFFECT: regeneration of circulation in brain without removal of part of carotid. 5 cl, 1 dwg
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