To furthermore improve an online system used for blood component collection to collect specific cell components, such as blood platelets, from the whole blood of a donor by using an extracorporeal circulation circuit and to return the remaining components to the donor.
In the system, separates the whole blood is separated into red blood cells and a blood platelet-rich plasma in a first step and the blood platelet rich plasma is separated into a blood platelet concentrate and a blood platelet poor plasma in a second step. The blood platelet concentrate is made to remain in a second-step separator and part of the blood platelet poor plasma is held in the system. The balance is returned together with the red blood cells to the donor. The held blood platelet poor plasma is used for resuspension of the blood platelet concentrate.
BROWN RICHARD I (US)
WILLIAMSON WARREN P (US)
