The device, that is Biosealer CR 4 has been created with an aim to seal PVC tubes, specifically for plasmaferes sets or bloodbags tubes. The strong RF-unit of the device renders it sufficiently suitable for the regular procedures of donation rooms, along with the recurring operations in the absence of overheating. Ease in pulling apart the tubes could be attributed to the seal which is both broad and secure. Both the sealing handle and the bench unit can have the power unit connected to those. When the tube is held at place, the bench unit undergoes automatic sealing. Featuring simple mobility, the sealing handle facilitates easy accessibility of the device to the portion of the tube to be sealed. The cables of both the units measure 1.9m. Characterized by easy and convenient sterilization, the electrodes are endowed with a shield in the form of a plastic covering.