The unique design - the size of the needle 22 G - allows you to preserve the integrity of the cells as much as possible at the stage of blood collection and ensures the perfect filling of the test tube with blood within 1 minute in natural mode. The catheter-butterfly system with a luer adapter is ideally combined with medical vacuum tubes MM Medic and allows to ensure the viability of cells when receiving various forms of plasma, including platelet concentrates of the 1st and 2nd generations.An important feature of the MM Medic butterfly catheter is the technically calibrated internal diameter of the catheter needle to ensure a uniform rate of tube filling without the risk of clot formation. The design of the needle cut (short cut, laser sharpening) ensures minimal traumatization and pain when taking blood. A flexible rubber valve closes the distal end of the needle and prevents contact with the patient's blood. For maximum safety when taking blood, it is recommended to use the MM Medic butterfly catheter in combination with a holder. You can get the necessary skills for using butterfly catheters at the online school \ training centers \ training course at the Multimed Academy https://ua.multimed.ua/