FIELD: medical engineering. SUBSTANCE: device has tube manufactured from radiopaque material having a two-canalled tube inside as an insert in the catheter usable for required time period when introducing two intracoronary conductors. The insert has radiopaque label at the distal end and Y-shaped catheter at the proximal end. The double lumen tube length is greater than the semiconductor catheter length. Its lumen diameters match intracoronary conductors diameter. EFFECT: retained intracoronary conductors parallelism inside of catheter. 1 dwg
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