| 摘要 |
PROBLEM TO BE SOLVED: To provide a defoamer for a blood storage tank of an artificial lung that is manufactured easily.SOLUTION: A defoamer 20 includes a bag-shaped outer layer 21 whose upper side only is open, including main parts 110a and 110b opposed to each other, and an inner layer 22 arranged between a pair of the main parts, including a pair of sub parts 120a and 120b overlapped on the pair of the main parts respectively, and is made of a continuous single sheet material. Slits are formed between edges on the respective upper sides of the main parts and the sub parts that are mutually overlapped. The edges on the respective upper sides of the main parts and the sub parts that are mutually overlapped are continuous in the portion except the slits. |
