Patent ID: 6613009
Filing Date: 2003-09-02
Classification: A61M,B04B

Abstract:
A blood primable apheresis system comprising:a blood component separation device for separating blood into blood components; a channel housing interconnectable with said blood component separation device and comprising a blood processing channel; a blood processing vessel disposed in said channel; means for priming said blood processing vessel with blood; said means for priming comprising a configuration of said blood processing channel; wherein said channel extends curvilinearly about a rotational axis of said channel housing in a first direction, said channel comprising a first cell separation stage, a red blood cell dam positioned in said first direction from said first cell separation stage, a platelet collection area positioned in said first direction from said cell dam, a plasma collection area positioned in said first direction from said platelet collection area, and an interface control region positioned in said first direction from said plasma collection area for controlling a radial position of at least one interface between red blood cells and an adjacent blood component type, wherein blood introduced into said channel is separated into layers of red blood cells, white blood cells, platelets, and plasma in said first cell separation stage; and wherein a reference circle having an origin at said rotational axis intersects on said red blood cell dam at a predetermined position, and wherein a ratio of a volume of said channel disposed inside of said reference circle to a volume of said channel disposed outside of said reference circle is no greater than about 0.25.