Abstract: A centrifuge (70) is provided with a cup (80) configured to house a blood bag system (10a) and centrifugally separates blood in the blood bag system (10a) by rotating the cup (80). The cup (80) has a segment holding section (86) capable of holding a plurality of segment tubes (44a), aligned in a parallel state by being folded at a sealing portion (44b) of an outlet-side tube (44), along a direction in which a centrifugal force acts during centrifugal processing or a direction inclined with respect to the direction in which the centrifugal force acts.

Abstract: A blood bag system includes a clamp installed in a flexible first tube. The clamp includes: a base section having a protrusion section, an opening/closing section having a pressing protrusion section that presses a side surface of the first tube, and a bent section that connects the base section and opening/closing section. The base section is provided with a pair of cutout sections opened to a side surface where the first tube can be inserted by interposing the protrusion section. The clamp is configured such that a portion of the first tube where the clamp is installed is bent while the clamp is released.

Abstract: A laminate comprising: a layer (A) comprising a resin not having active hydrogen in a main molecular skeleton thereof; and an adhesive layer (B) being at least in partial contact with the layer (A) and comprising a composition for adhesion, wherein the composition for adhesion satisfies the following requirements (i) to (iii): (i) comprising a polyolefin being a product of reaction between polyolefin (a) having a group that reacts with a carbodiimide group and a carbodiimide group-containing compound (b); (ii) comprising a carbodiimide group in an amount of 0.1 to 50 mmol per 100 g of the composition for adhesion; and (iii) having a density of 0.870 to 0.940 g/cm3.