Cord
blood is the blood collected from the umbilical cord and the placenta
immediately after child birth.
This
cord blood collected is then stored in the freezing temperatures to
be used in future. The blood contains stem cells which have very high
natural healing power. These cells are unique to a particular baby
and its family. The stem cells can be stored and used in case of necessity
either by the same person or they can be donated to others. The parents
interested in donating their babys child birth, should arrange
to have the cord blood collected and stored in the cord blood bank
of their choice. The blood is collected in cord blood collection kit
and sent for testing. After
testing the blood is stored in frozen state with great care by skilled
and experienced technicians. Cord blood freezing is done in liquid
nitrogen in specialized sterilized containers. Each set of cord blood
contains a three dimensional freezing bag with two compartments and
a tubing lead ending in a spike. The cord
blood freezing bag is designed in such a way that the freezing rate
assures maximum cell viability. The cord blood freezing bag design
is such that the bag does not break in any circumstance. Cord
blood freezing and testing involves a very complex procedure. It can
be performed by skilled technicians with much experience. Actually
during cord blood freezing procedures, the frozen cells expand and
become bigger. This
can sometimes cause the cell lining or membrane to rupture. Therefore
during cord blood freezing care should be taken to protect the cells
from freezing quickly. There are cryo-protectant chemicals available
which when added to the cells enables slow freezing. Cord
blood freezing process is usually monitored very closely by skilled
people to ensure that the cells are not quickly frozen and that there
no water crystals are formed within them. The
fact that skilled and experienced technicians are required for cord
blood freezing makes the process little costlier.Further cord blood
freezing involves placing the cells in liquid nitrogen as there is
80% of nitrogen in the atmosphere. The
cord blood freezing is done with nitrogen at 320 degrees Fahrenheit.The
cord blood freezing process should be very closely monitored to ensure
proper functioning of the freezers. The specimens stored also get
security protection as the cryo-cells split the samples and they are
preserved in two separate states.
Why
Cord blood freezing is important?