| 摘要 |
FIELD: medical engineering. SUBSTANCE: device has two parallel tubes having ends for introducing contrasting agents and achieving simultaneous contrasting of several cavities. The tubes are twisted as conic spirals. Each spiral coil is designed as recess of different diameter. Each recess is directed oppositely with respect to conic device narrowing. EFFECT: reliable and safe led obturation or cavity obturation in performing X-ray examination; enable concurrent contrasting of several cavities with different contrasting agents. 2 dwg |
