Abstract
A new technique was developed for non-surgical implantation of an Angioplasty Ring to prevent restenosis following angioplasty. 22 Nitinol wire coil rings (ID 5mm, length 5mm, thickness 0.25-0.4mm) were implanted in 11 dogs (25-30kg) in the common iliac artery and carotid artery. 10 rings were implanted surgically in 5 dogs to evaluate biocompatibility. 9/10 rings were patent (2 weeks-3 months). 12 rings were implanted in 6 dogs using a 7F Angioplasty Ring catheter fabricated in our department. By angiography 11/12 rings were patent at 1 year study. These results show Angioplasty Ring is promising for clinical application.
