Today , it already gives some embryos : embryos can stay in " refrigerator " with good chances of surviving a thaw - it is estimated that nearly 60 % of them get nowhere , giving rise to a baby . So many people believe that this will still work with human well-developed .
About 200 people and 20 animals passed by freezing since it was first held in 1962 . In the United States , the cryogenic can only be legally performed in humans after having been pronounced legally dead.
The procedure is done in 4 steps :
1. Once a person dies , a company official cryogenics cools the body with ice. At this stage, the body temperature is somewhat above 32 ° F.
2 . In this phase , the body also receives an injection of substances anticoagulants to keep the blood vessels clear . Then, all the blood is pumped out of place and come chemicals which protect the cells from freezing time , avoiding the formation of ice crystals that disrupt the cellular structure
3 . At the site where the body will be frozen, the body undergoes a gradual cooling in an ice chamber cleaning. To avoid damage to cells, it is intended that all tissues from freezing at the same rate .
4 . After cooling , the body is slowly submerged in a tank of liquid nitrogen until completely covered . When this phase is over, after one week, the body is frozen -320 ° F prevented from rot. The body is in the tank for eternity or until someone invents a technology to resuscitate him.
So this is a good technique that scientific advancement has given us , I think particularly a good idea , but is a hard work and high costs . But maybe one day we can make use of this technique perfectly in the future.
