Abstract: A vacuum blood collection tube (100) comprises a bottomed tube (101) composed of a low temperature resistant material that is less susceptible to low temperature fracture when cryopreserved at ultra-low temperature, a stopper (102) having a needle piercing portion (113) composed of a rubber material that can be pierced with a blood collection needle (110), and a cryopreservation cap (103) composed of the low temperature resistant material. Before blood collection, the stopper (102) is attached to the bottomed tube (101) to maintain the reduced pressure state inside the bottomed tube (101). Thus, blood collection by a vacuum blood collection method is possible. After blood collection, the cryopreservation cap (103) is attached to the bottomed tube (101), so that the liquid tight state of the bottomed tube (101) is maintained, and cryopreservation at ultra-low temperature as it is possible.

Abstract: A vacuum blood collection tube (100) comprises a bottomed tube (101) composed of a low temperature resistant material that is less susceptible to low temperature fracture when cryopreserved at ultra-low temperature, a stopper (102) having a needle piercing portion (113) composed of a rubber material that can be pierced with a blood collection needle (110), and a cryopreservation cap (103) composed of the low temperature resistant material. Before blood collection, the stopper (102) is attached to the bottomed tube (101) to maintain the reduced pressure state inside the bottomed tube (101). Thus, blood collection by a vacuum blood collection method is possible. After blood collection, the cryopreservation cap (103) is attached to the bottomed tube (101), so that the liquid tight state of the bottomed tube (101) is maintained, and cryopreservation at ultra-low temperature as it is possible.

Abstract: An electronic control unit that can execute object-oriented program processing without consuming much memory. When a message is dispatched due to execution of an object method, that message is stored (queued) in an object message holding part. At the point in time when execution of an object method finishes, message delivery processing is executed. If a message has been stored in the object message holding part, the number of queuing messages is counted, the message stored first is read out, and a shift is made to execution of the method of the object that is the output destination of that message. As a result, only messages need to be stored, and the amount of stored information, and thus the amount of memory required to store the information, is small.