1990 Volume 19 Issue 3 Pages 1339-1344
Polyurethane (PU) tubes and heparinized PU tubes were implanted at the canine SVC. Peripheral was sutured and central was inserted into the right atrium. Principally the patency was checked by angiography one week after the implantation. Patency rates were 2/3 in the PU and 5/5 in the heparinized PU tubes. Those materials were observed macroscopically and microscopically, and by the SEM. A little thrombus was noticed on the PU, but little thrombus was noticed on the heparinized PU. Heparine contained within PU fulfilled its function. The heparinized PU is promising as the material of the artificial venous graft.
