Patent ID: 8530231

Claim:
A vacuum blood collection tube comprising: a bottomed tube which is composed of a low temperature resistant material that is less susceptible to low temperature fracture when cryopreserved at an ultra-low temperature of −40 degree Celsius to −200 degree Celsius and is thereby suitable for storage at an ultra-low temperature in the range of −40 degree Celsius to −200 degree Celsius; the bottomed tube having a bottom portion at one end and an opening at the other end; a stopper which is attached to the opening of the bottomed tube before blood collection; which is in close contact with the opening of the bottomed tube so that a reduced pressure state inside the bottomed tube can be maintained, wherein pressure of said reduced pressure state is lower than atmospheric pressure; the stopper having a needle piercing portion composed of a rubber material that can be pierced with a blood collection needle; and a cryopreservation cap which is composed of the low temperature resistant material that is less susceptible to low temperature fracture when cryopreserved at an ultra-low temperature of −40 degree Celsius to −200 degree Celsius and is thereby suitable for storage at an ultra-low temperature in the range of −40 degree Celsius to −200 degree Celsius; which is attached to the opening of the bottomed tube after blood collection; the cryopreservation cap sealing the opening of the bottomed tube under a condition of the ultra-low temperature so that a liquid tight state of the bottomed tube can be maintained.