SYSTEM FOR FACILITATING TRANSCATHETER AORTIC VALVE PROCEDURES USING FEMORAL ACCESS

摘要

A device for facilitating use of instruments disposed through an aortic arch includes an embolic deflector having a first surface positionable in contact with a wall of an aortic arch such that a porous barrier portion of the embolic deflector covers ostia of at least the brachiocephalic and left common carotid arteries. A second surface is disposed on an opposite face from the first surface. A lubricious guide track is disposed on the second surface and extends longitudinally on the embolic deflector. The deflector and/or guide track is supported by a shaft that is extendable through a femoral artery and descending aorta to position the guide within the aortic arch. During use, the device is percutaneously introduced via the femoral artery and advanced into the aorta. The porous barrier portion of the deflector is positioned over the target ostia, and the guide track thus faces into the aortic arch. An instrument passed through the aortic arch, such as an aortic valve delivery system introduced via a femoral artery, is advanced along the lubricious guide track towards a target site (e.g. the aortic valve), minimizing contact between the instrument and the wall of the aorta.