| 摘要 |
<p>PURPOSE:To reduce blocking between respective sheets by forming more than two kinds of projections which are different in form and/or height on the inner and/or outer surfaces of at least one of the sheets forming a medical bag. CONSTITUTION:A blood bag 1 is composed of a master bag 2 containing collected blood and of No.1 and No.2 slave bags 3 and 4 for containing blood contained in the master bag 2. Projections 16 and 17 which are different in form and in height are formed on the inner surface of a sheet 15 constituting the master bag 2 and the slave bags 3 and 4. The projection 16 is formed into a cube with the height of (h) and the width of (w), and the projection 17 is formed into a semi-sphere with the height of H and the width of W. As for the relation among the heights H and (h) and the widths W and (w) of the respective projections 16 and 17, H is larger than (h) and W is larger than (w). When recesses and projections per unit area in the sheet surface are increased in number, air in the medical bag or air in spaces among more than two medical bags is thereby highly dispersed, blocking between the inner surfaces of the medical bag or between the outer surfaces of the medical bags can be prevented. In addition, change in the location of these projections enables partial blocking from being effectively prevented.</p> |
