Determination Of Red Blood Cell Recovery

Abstract

A blood separation device includes a pump system, a separator, and a controller. The controller is programmed to execute a blood separation procedure including a red blood cell collection stage in which blood is conveyed into the separator, red blood cells are separated from the blood in the separator, and the separated red blood cells are conveyed from the separator into a collection container. The red blood cell collection stage is ended when a target volume of blood has been separated in the separator. The controller then determines a percentage of the red blood cells from the target volume of blood that have been collected in the collection container based on the volume of red blood cells and the hematocrit of the fluid in the collection container, a volumetric flow rate of pure red blood cells in the blood conveyed into the separator, and the procedure time.

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