Percutaneous arterial grafting.

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Abstract
A new technique for percutaneous arterial grafting was developed using a unique metal alloy (nitinol) with a heat dependent memory. Ten tightly wound nitinol coils (5-15 mm in diameter and 2-5 cm in length) were straightened in ice water and passed via catheter into the iliac artery or abdominal aorta of 9 animals [dogs]. Long term patency (15 wk) was demonstrated in all but 1 graft. In 1 animal, an experimentally created abdominal aortic aneurysm was successfully treated by interposition of a nitinol graft. This new technique may be a valuable adjunct to conventional treatment of both obstructive and aneurysmal arterial disease in man.

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