Release date: 2007-03-19
Japan develops new artificial blood vessels using squid skin Researchers at Hokkaido University in Japan have recently extracted collagen from squid skin to make artificial blood vessels, and finally hope to develop artificial blood vessels that can be used to treat human myocardial infarction.
The researchers succeeded in increasing the heat-resistant temperature of collagen to 55 degrees Celsius by changing the structure of collagen in the squid skin and strengthening the binding between collagen molecules. The researchers used modified collagen to make an artificial blood vessel with an inner diameter of 1.6 mm and a wall thickness of 0.6 mm. The artificial blood vessel was transplanted to the aorta of the abdomen of the rat in late February. Experiments have confirmed that the implanted artificial blood vessel will expand and contract with the rhythm of the heart of the rat, and the artificial blood vessel has the same strength and stretchability as the original aorta.
It is understood that Japan's Kyushu University has used polyurethane to produce a successful double-layered artificial blood vessel, which is soft and flexible, and has greatly improved performance. Information from: Shanghai Medical Device Industry Association
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