| 摘要 |
Devices and methods for cryopreserving a biological sample by liquid nitrogen, the device comprising: a first container comprising an internal space, the first container is configured to be submerged in liquid nitrogen stored in a cryopreservation space inside a liquid nitrogen container and to hold the biological sample in the internal space while preventing contact of the biological sample with the liquid nitrogen; and an airway comprising a first end and a second end, the airway is coupled to the first container at its first end and configured to couple the internal space to an outer environment, external to the liquid nitrogen container, so as to balance pressure changes inside the internal space. |
