→Good performance of dynamic sealing. Bearing pressure is greater than 37 mmHg, clinical required 8~15mmHg;
→Resistance of plugging and pulling is small. Dynamic test data is less than 3.2N/mm;
→Drag reduction structure of plum membraneflap valve, lower resistance of plugging and pulling;
→Puncture cone head has cutting edge with six-sided knife typeblade;
→Puncture cone universal orientation, without directional insertion.