IMPLANTABLE INTEGRAL DEVICE AND CORRESPONDING METHOD FOR DEFLECTING EMBOLIC MATERIAL IN BLOOD FLOWING AT AN ARTERIAL BIFURCATION

摘要

Implantable integral device (20) and corresponding method for deflecting embolic material in blood flowing (60) at an arterial bifurcation (52), featuring an expandable dual diameter coil element (21) having a contracted state with a first diameter in which there is at least partial overlap of two opposing ends of the coil element, and an expanded state having a second diameter greater than the first diameter, wherein a portion (27), of and integral with the coil element deflects the embolic material in the blood flowing toward a first branch (40) of the arterial bifurcation into a second branch (42) of the arterial bifurcation, while filtering the blood flowing toward the first branch of the arterial bifurcation. The portion (27) of the coil element (21) is a finely meshed zone functioning as a deflecting and filtering element, for deflecting the embolic material in the flowing blood while filtering the flowing blood.