Blood Bag System
AssigneeTerumo Kabushiki Kaisha
InventorsKaoru HOSOE, Masahiro AKIYAMA
Life of this patent
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Abstract
The blood bag system (100) includes a first bag (101) for storing blood sampled from a donor, a first tube (106a) for transferring blood from the first bag (101), a filter (21) for reduced blood transferred from the first tube (106a), a second tube (106b) for transferring filtered blood, and a second bag (102) for storing filtered blood transferred from the second tube (106b). The first bag (101) contains a predetermined amount of air satisfying an equation: (V1+V2+V3)<(amount of air)<(V1+V2+V3+V4+V5), where V1 is a volume in the first tube, V2 is a volume of the blood inflow chamber, V3 is a void volume of the filter, V4 is a volume of the blood outflow chamber, and V5 is a volume in the second tube.
Claims2
A blood bag system comprising:
- a first bag for storing blood sampled from a donor;
- a first tube for transferring blood from the first bag;
- a filter including a housing and a filter material separating inside of the housing into a blood inflow chamber and a blood outflow chamber, blood transferred from the first tube to the blood inflow chamber being reduced in the filter material to remove a predetermined blood cell component, filtered blood flowing out from the blood outflow chamber;
- a second tube for transferring filtered blood flowing out from the blood outflow chamber;
- and
- a second bag for storing filtered blood transferred from the second tube, wherein
- the first bag contains a predetermined amount of air satisfying Equation (1) expressed as follows:
- (V1+V2+V3)≦(amount of air)<(V1+V2+V3+V4+V5) Equation (1),
- where V1 is a volume in the first tube, V2 is a volume of the blood inflow chamber, V3 is a void volume of the filter material, V4 is a volume of the blood outflow chamber, and V5 is a volume in the second tube.
Dependencies are inferred from the claim text.