successful storage is 21 years. It can be used for sperm donation where the recipient wants the treatment in a different time or place to have children.


  • Sperm banking is performed by first analyzing your semen to determine the sperm count and motility of the sperm.
  •  Each sample (ejaculate) is then mixed with a special media or solution to help provide protection during freezing and thawing.
  • The samples are then placed in high security CBS (CryoBioSystem) straws which are coded and carefully frozen by liquid nitrogen vapor.
  • The straws are immersed in liquid nitrogen and are stored in liquid nitrogen storage tanks at a temperature of -196° C (-371° F) At these low temperatures, any biological activity, including the biochemical reactions that would lead to cell death, is effectively stopped.
  • The liquid nitrogen is independent of any source of power, and is regularly checked and replenished.

CBSTM High Security Straws

  • The CBS™ Cryobiostraw is designed for the cryostorage of biological samples of human origin.
  • The physical properties of the Cryobiostraw and the method of filling and sealing provide a leak proof environment for the specimen even when immersed in liquid nitrogen to avoid contamination with the infected samples. Manufactured with biocompatible materials, the CBS™ straw is ideal for use in Assisted Reproduction Technologies, particularly for cryopreservation of sperm and embryos.