BLOOD SEPARATION METHOD AND BLOOD SEPARATION FILTER
FIG3 is a schematic explanatory view of a blood separation method using the blood separation filter of FIG1
The inflow tube 14 is an elongated flexible cylindrical tube connected to the inflow port 26. One end of the inflow tube 14 is connected to a blood bag 52 containing blood via a sealing member 50, while the other end of the inflow tube 14 is connected to the inflow port 26 (refer to FIG3). The outflow tube 16 is an elongated flexible cylindrical tube connected to the outflow port 28. One end of the outflow tube 16 is connected to the outflow port 28, while the other end of the outflow tube 16 is connected to a storage bag 58 containing post-separation blood (refer to FIG3). Next, a blood separation method using the blood separation filter 10A will be described. As illustrated in FIG3, when a predetermined blood component is to be separated from the blood, the blood bag 52 containing blood is first suspended from the suspension base and positioned at a high position. Furthermore, in the arrangement step, the housing 18 is suspended by using the inflow tube 14. With this arrangement, the housing 18 is in a state close to the horizontal state (laid-down state) allowing the blood inflow chamber 20 to be positioned below the filter member 24 and the blood outflow chamber 22 to be positioned above the filter member 24. At this time, at least a portion of the inflow tube 14 and at least a portion of the outflow tube 16 extend on the center-of-gravity line Lg.
schematic view
24
filter member
30
first case
52
blood bag
50
sealing member
26
inflow port
58
storage bag
32
second case
13
retainer groove
['1. A blood separation method using a blood separation filter (10A to 10F) that separates a predetermined blood component from blood, the blood separation filter (10A to 10F) including: a housing (18, 62); a filter medium (38) disposed in the housing (18, 62) and partitioning the housing (18, 62) into a blood inflow chamber (20) and a blood outflow chamber (22) in a thickness direction of the housing (18, 62); an inflow port (26) provided in the housing (18, 62) to allow blood to flow into the blood inflow chamber (20); and an outflow port (28) provided in the housing (18, 62) to allow post-separation blood from which a blood component has been separated by the filter medium (38) to flow out from the blood outflow chamber (22), the blood separation method comprising: an arrangement step of arranging the housing (18, 62) such that the blood inflow chamber (20) is positioned vertically below the filter medium (38) and the blood outflow chamber (22) is positioned vertically above the filter medium (38); a blood treatment step of first allowing the blood to flow from the inflow port (26) into the blood inflow chamber (20) in a state of the arrangement step, allowing  the blood to flow through the inside of the filter medium (38) upward from vertically below, and then allowing the post-separation blood inside the blood outflow chamber (22) to flow out to the outflow port (28); and a post residual treatment blood collection step of arranging the housing (18, 62) such that the outflow port (28) is positioned vertically below the blood outflow chamber (22) after the blood treatment step, thereby guiding post-separation residual blood in the housing (18, 62) to the outflow port (28).', '9. The blood separation filter (10A, 10B) according to claim 8, wherein at least one of the inlet-side retainer (11a, 15a) and the outlet-side retainer (11b, 15b) is a clip portion having a retainer groove to and from which the inflow tube (14) or the outflow tube (16) is attachable and detachable.']