A group of scientists from several Chinese institutions have developed a hydrogel that is able to stop the bleeding from the punctured artery, one of the strongest and most dangerous to humans. In his article, published in Nature Communications, the scientists describe how the was made of the hydrogel and how well he worked in experimental animals. Uncontrolled bleeding is a very serious situation as during surgical procedures and the resulting injuries.
Hydrogel will help with heavy bleeding
In most cases it is the result of damage to a major artery or organ like the liver. In all cases, decisions must be made immediately, otherwise the victim will die. Now the treatment of such wounds includes clamping the artery with subsequent suturing to close the wound. In the past, scientists have tried to create a kind of glue to “seal” wounds, but so far none of them worked as intended or adhesive consisted of toxic materials, or was not strong enough to withstand high pressure fluid in the bloodstream. So, it seems scientists have managed to create a hydrogel that solves both problems.
The new hydrogel consists of water, gelatin and a mixture of proteins and other chemicals. Wondered what its structure will be as close as possible to the connective tissues. When ultraviolet light falls on a gel that hardens and condenses, sticking to the wound and preventing leakage of blood. And all this for 20-30 seconds. Scientists have noted that the hydrogel can withstand a pressure of 290 mm Hg. the article — much higher than normal.
The researchers also report that experienced your hydrogel punctures the carotid artery of a Guinea pig, and put the gel on the wound. The hydrogel not only closed the wound (and saved the life of a pig), but also contributed to the wound healing. In addition, the hydrogel started to decompose, harmless to the body. The researchers then stopped the bleeding from the femoral artery of the rabbit from his liver. You will need to conduct additional work on the safety study of the gel before proceeding to trials in humans, but preliminary results can already be considered successful.