ANTITHROMBOTIC ARTIFICIAL BLOOD VESSEL

摘要

The objective of the present invention is to provide an artificial blood vessel which promotes intimal formation after placement, is capable of maintaining antithrombogenicity until an intima is formed and is capable of long term patency. The present invention is an artificial blood vessel which is a tubular fabric comprising, inside a fiber layer that includes ultra fine fibers, an ultra fine fiber layer composed of ultra fine fibers with a diameter of 10 nm to 3 μm, wherein a quaternary ammonium polymer with an alkyl group having 10 or less carbon atoms is covalently bonded to the ultra fine fibers, heparin is ionically bonded to the quaternary ammonium polymer, and the residual heparin activity after being washed with saline at 37°C for 30 minutes is 20 mIU/cm2 or more.