How The Blood Bag Changed The Face Of Medical History
The blood bag may appear like a fairly basic piece of storage, but the development of this was a turning point in our medical ground.Without the advantage of a blood transfusion there are many operations which might not be performed and would never have been tried. We take the idea of a blood transfusion for granted. But actually, a blood transfusion is a somewhat recent development.
Initially there was no means to store blood, so each transfusion had to be absolutely from one vein into a second vein. This was obviously very limiting. Blood could not be preserved until a suitable anticoagulant was discovered. Richard Lewison invented this in 1915; sodium citrate.
Within just a few years blood was being donated and stored for few days at a time. This provided many of those injured during the last years of the First World War an opportunity to survive.
The blood was being donated and stored in glass containers. It was already discovered that blood could be divided into its constituent parts of blood plasma and RBCs; but this was very hazardous due to the possibility of contamination during the process.
Nonetheless, with the development by Fenwal Company of the plastic blood bag in 1953 everything changed. This was a great way to store and transfer blood with little contamination risk; quickly so much more was possible.
The first blood banks were established in the Soviet Union, United States and Europe during the late 1930s. Although it would take many years to upgrade the glass storage jars, in all areas, the process was started and immediately there were increasingly more uses of blood transfusions and more daring surgeries were happening with this more support.
So now the blood could be obtained, divided, and preserved; but transport still needed to be conquered. Blood needs to be stored at the right temperature and a consistent temperature. Just as the mobile phone has gone from the volume and weight of brick to something not much larger than a credit card; so the transport of blood has progressed.There are now thermal blood carrying bags which let medics to take blood to where ever it is necessary. These are important for the quick and efficient treatment we have all come to expect.
So the little blood bag has revolutionised our planet, and yet many people will never know the names of the people who are contributing for saving lives every minuet of every day.
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