Dry shipper

Dry shipper with inner canister and shipping case

Dry shipper refers to a specialized type of container used for the safe transportation of biological samples, such as sperm, eggs, embryos, and other cells, at cryogenic temperatures, typically below -150°C. These containers are essential in the fields of biotechnology, reproductive medicine, and cryopreservation, ensuring that biological materials remain viable over long distances and durations.

Design and Function

A dry shipper utilizes liquid nitrogen to create a cold environment without the liquid coming into direct contact with the stored material. This is achieved through the use of an absorbent material that lines the interior of the container, which is pre-cooled with liquid nitrogen. The absorbent material retains the liquid nitrogen, allowing the dry shipper to maintain cryogenic temperatures for extended periods, often up to several weeks, depending on the model and external conditions.

The design of a dry shipper includes several key components:

• Absorbent Material: This material is critical for retaining the liquid nitrogen and ensuring the interior remains at a cryogenic temperature.
• Vacuum Insulation: The container is vacuum insulated to minimize heat transfer from the outside environment.
• Protective Outer Shell: Typically made from durable materials like aluminum, the outer shell protects the internal contents from physical damage.
• Temperature Monitoring: Some models include built-in temperature monitors or loggers to track the internal temperature during transportation.

Applications

Dry shippers are used in a variety of applications where the preservation of biological samples is critical:

• In reproductive medicine, for the transport of sperm, eggs, and embryos for use in in vitro fertilization (IVF) procedures.
• In biobanking, for the storage and transport of tissue samples, stem cells, and other biological materials for research and medical use.
• In veterinary medicine, for the transport of genetic material for breeding purposes in livestock and endangered species conservation efforts.

Regulations and Safety

Transporting biological materials at cryogenic temperatures requires adherence to specific regulations and safety protocols to prevent accidents and ensure the viability of the contents. This includes regulations related to the handling of liquid nitrogen and the transport of biological materials, which may vary by country and region. Proper training in the use of dry shippers and the handling of cryogenic materials is essential for all personnel involved in their use.

Advantages

The use of dry shippers offers several advantages over traditional liquid nitrogen storage tanks, including:

• Portability: Their compact size and lighter weight make them easier to transport.
• Safety: By avoiding direct contact with liquid nitrogen, they minimize the risk of spillage and exposure.
• Temperature Stability: They can maintain stable temperatures for extended periods, ensuring the viability of sensitive biological materials.

Conclusion

Dry shippers play a crucial role in the modern biotechnology and medical fields, enabling the safe and efficient transport of valuable biological materials across the globe. Their design and functionality make them an indispensable tool for researchers, medical professionals, and conservationists alike.

Dry shipper Resources
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