The special fistula needle for easy and efficient single-needle dialysis. With their ultra thin walled cannulas and short passages in the cannula holder, Hy-flo fistula needles ensure high and effective blood flow rates. The slit-shaped vent prevents suctioning and intimal trauma. Other big benefits of the Hy-flo fistula needles are its low oscillating volume of less than 0.1ml and the simple puncture technique and positioning of the needle. Further information The following application gives further information about this product.