1.Medical-grade polyvinyl chloride is adopted.
2.With or without steel-wire inside the catheter.
3.With or without end ring.
4.The cannulae feature thin wall, beliveled tip, one piece construction and a clear ,tapered cannula body that maximizes flow rates and minimizes kinking. A tip orentation line permit precise positioning of the cannula within the aorta.
6. In cardiac operation under direct vision, it can be inserted into the aorta for blood flow in extracorporeal circulation.