Vitrification: Cryo Freezing
What is Vitrification?
Embryo cryopreservation is the process by which surplus embryos resulting from IVF /ICSI cycle are frozen for future use. Traditional freezing technique has the disadvantage of formation of ice crystals which can cause embryo injuries. We at Reviva use, the vitrification method. In vitrification water molecules in an embryo are removed and replaced with a cryoprotectant. The embryos are then plunged directly into liquid nitrogen. This sudden & drastic freezing creates a glass transition known as glass state. This reduces formation of ice crystals as in slow cryofreezing. Once frozen embryos are contained within labelled sterile straws which are immersed in liquid nitrogen. These can be safely stored like this for years.