System for Facilitating Transcatheter Aortic Valve Procedures Using Femoral Access
A system for use in performing aortic valve procedures using an instrument disposed through an aortic arch includes a lubricious track positionable within the aortic arch such that a lubricious inferior surface of the track is exposed to the interior of the aortic arch. An instrument to be used in performing the valve procedure is configured to be percutaneously introduced into a femoral artery, advanced through the descending aorta and into the aortic arch, and moved into sliding contact with the lubricous inferior surface of the track. The instrument is advanceable along the lubricious surface until its distal portion is at a target site for the aortic valve procedure.
1 . A system for use in treating an aortic valve using instruments disposed through an aortic arch, the system comprising:
a guide having a longitudinal axis and wall portions extending along opposite sides of the longitudinal axis to define a non-tubular track;
a lubricious surface on the track;
a shaft supporting the guide, the shaft and guide configured such that when the shaft is positioned extending through a femoral artery and descending aorta, the guide extends along the aortic arch with the lubricious surface exposed to the interior of the aortic arch; and
an aortic valve treatment device, when the guide is disposed along the aortic arch, the aortic valve treatment device is advanceable from a femoral artery, into contact with the guide, along the lubricious surface of the track, to an aortic valve site.
2 . The device of claim 1 , further including an embolic deflector having a barrier positionable covering ostia of at least a brachiocephalic artery and a left common carotid artery, wherein the guide is positionable in contact with the deflector.
3 . The device of claim 2 , wherein the embolic deflector includes a convex surface contacting the aortic arch, and a concave surface facing into the lumen, and wherein at least a portion of the track contacts the concave surface of the embolic deflector.
4 . The device of claim 3 , wherein the track is coupled to the concave surface of the deflector.
5 . The device of claim 4 , wherein the track includes a proximal portion extending proximally of the barrier and a distal portion contacting the deflector.
6 . The device of claim 5 , where the track is wider, relative to the longitudinal axis, in the proximal portion than in the distal portion.