Over 60% of blood vessels used in dialysis creation surgery collapse within 12 months (5 years for coronary bypass), risking the lives of 5 million patients every year. Our absorbable wrap goes around these vessels, preventing that collapse. Our product worked in every metric we tested in large animals. It costs Medicare $20,000 every time this surgery fails. At $5k price for 830k US surgeries that can use our product, this is a $4B+ US market.