A brand-new “bio-glue” — an experimental adhesive gel that will is actually activated by a flash of light — has been proven to stop high pressure bleeding inside hearts of pigs.
A team of researchers by Zhejiang University School of Medicine in Hangzhou, China, accepted the challenge.
Inspired by the matrix composition of human connective tissues, they created a gel composed of a network of proteins in addition to various other molecules. The product, which requires ultraviolet light to activate, can adhere within seconds in addition to then bond to wet biological tissue surfaces.
In early experiments, the research team showed that will their bio-glue could seal wounds to pig livers.
Next, they demonstrated that will wounds in addition to punctures of hearts — among the most difficult of surgical challenges — could also be sealed using only the bio-glue, no stitches.
In pigs, the bio-glue sealed a punctured carotid artery, a major blood vessel inside neck, in less than a minute in addition to also filled holes inside cardiac wall. The Chinese researchers monitored their post-surgical pigs for a two-week recovery period in addition to saw natural healing with no abnormalities or unusual inflammation.
The surgical repairs can withstand a systolic blood pressure reading of up to 290 millimeters of mercury, or mmHg, which is actually “significantly higher” than systolic readings seen by most doctors (the usual range is actually between 60 in addition to 0), the study authors noted.
“Most importantly, the hydrogel can stop high-pressure bleeding by pig carotid arteries with 4~ 5 mm-long incision wounds in addition to by pig hearts with 6 mm diameter cardiac penetration holes.”
Based on these early experiments, the bio-glue shows promise for use in human surgeries in addition to to stop emergency bleeding, the authors concluded.