Chen Gong couldn't help but be startled.
Alright then!
Zhao Lei explained, "Globally, every year, more than 600,000 people are in need of blood vessel reconstruction surgery.
For those larger than 6 millimeters, 'artificial blood vessels' have indeed become commercialized.
However... the fabrication of small-caliber vessels less than 6 millimeters in diameter has become an international challenge.
Moreover, the prices for imported artificial blood vessels are very high!
The domestic artificial blood vessels cost tens of thousands of yuan, as you can imagine..."
"The School of Materials Science and Engineering, Beijing Polytechnic University, using silk fibroin as the basic material, has prepared anti-coagulation materials and small-caliber vessel samples with diameters of 3-5 millimeters."
"But... you know, this is only 3-5 millimeters and it's still in the experimental stage, right?"
"That's why!"
"Within 6 millimeters, every millimeter is a historic step!"