Patent ID: 8202246

Claim:
A method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein, the method comprising: positioning a distal portion of a first intravascular device in the vascular wall, the first intravascular device including a first aperture, a second aperture, a first radiopaque marker, and a second radiopaque marker, the first aperture being longitudinally offset from the second aperture with the first aperture located proximal the second aperture, the first radiopaque marker being located between the first aperture and the second aperture, the second radiopaque marker being located distal the second aperture; inserting a distal end of a reentry device, in a compressed state, in the distal portion of the first intravascular device; positioning the distal end of the reentry device proximal the first radiopaque marker of the first intravascular device; rotating the reentry device until the distal end of the reentry device, in a natural state, enters the first aperture of the first intravascular device; positioning the distal end of the reentry device proximal the second radiopaque marker of the first intravascular device and distal the first radiopaque marker of the first intravascular device; rotating the reentry device until the distal end of the reentry device, in the natural state, enters the second aperture of the first intravascular device; and advancing the distal end, in a natural state, through the second aperture of the first intravascular device.