| 摘要 |
A platelet collection apparatus has a function of determining whether there is a tendency to increase or decrease in the number of collected platelets by using data, related to the concentration of platelets, obtained from a turbidity sensor, an expected number of to-be-collected platelets or a value related thereto; and a function of decreasing the amount of platelets to be collected in a subsequent platelet collection operation after plasma containing high-concentration platelets is collected in a plasma collection operation, if the function of determining on an increase/decrease tendency in the number of collected platelets determines that there is a tendency to increase in the number of collected platelets.
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