Patent ID: 8323261

Claim:
A method of facilitating treatment via a vascular wall defining a vascular lumen containing an occlusion therein, the method comprising: inserting a guidewire or crossing device into the vascular lumen; positioning a distal portion of the guidewire or crossing device in the vascular wall; advancing an intravascular device over the guidewire or crossing device, the intravascular device defining a tubular body and a lumen, and having a distal portion including a side port and lateral projections, wherein each of the lateral projections includes a delivery configuration and a deployed configuration, wherein the lateral projections are completely external the lumen in both the delivery and the deployed configurations; positioning the distal portion of the intravascular device in the vascular wall; and directing the lateral projections laterally within the vascular wall such that the lateral projections are in the deployed configuration, wherein each lateral projection in the deployed configuration includes a first substantially straight side projecting away from a longitudinal axis of the tubular body joined to a second substantially straight side projecting away from the longitudinal axis of the tubular body, a distal end of the first substantially straight side directly touching and affixed to a first axial portion of the tubular body extending substantially parallel to the longitudinal axis of the tubular body a proximal end of the second substantially straight side directly touching and affixed to a second axial portion of the tubular body extending substantially axially, wherein the first substantially straight side, the second substantially straight side, and the first axial portion are a single piece of material.