Expandable body device and method of use

A medical device comprising:

• a metallic expandable body configured for permanent implantation in an artery or vein, the expandable body comprising:
• a distal region, a proximal region generally opposite the distal region, an intermediate region transitioning from the distal region to the proximal region, a center axis extending proximal-distal between the proximal region and distal region;
• a wall extending generally continuously through the intermediate region from the distal region to the proximal region to define an exterior surface of the expandable body and an interior surface of the expandable body, the interior surface defining a central void of the expandable body;
• and
• a proximal neck, a distal neck, a proximal nosecone, a distal nosecone, and one or more elastomeric valves;
• a triple lumen delivery catheter assembly comprising:
• a longitudinally extending body further comprising a proximal end and a distal end generally opposite the proximal end, wherein the distal end of the delivery catheter is operably coupled to the proximal region of the expandable body;
• a first hollow member shaft that defines a first lumen that is continuous from the proximal end to the distal end and is configured to accept a guide wire;
• a second hollow member shaft that defines a second lumen to allow for passage of a fluid medium from the proximal end to the distal end and into the central void of the expandable body;
• and
• a third hollow member shaft that defines a third lumen to allow for passage of a fluid medium from the proximal end to the distal end and into the blood vessel lumen near the location of the expandable body;
• wherein the third hollow member shaft can be separated from the remainder of the delivery catheter, wherein the expanded expandable body can be separated from the delivery catheter by pulling the third hollow member shaft and the remainder of the delivery catheter assembly components apart;
• wherein, the one or more elastomeric valves are configured to close a proximal neck or a distal neck when separated from the delivery catheter such that the pressure inside the central void of the expanded expandable body, after separation from the delivery catheter, is less than or equal to the pressure outside the expanded expandable body,
• wherein the expandable body is configured to expand from a deliverable configuration to an expanded configuration, the expandable body is attached to the delivery catheter by a friction fit, without glue, adhesive, or a weld;
• and
• wherein, when the expandable body is in the deliverable configuration, the wall assumes a pleated configuration comprising a plurality of pleats folded over in a clockwise direction relative to the center axis or a counter-clockwise direction relative to the center axis to form a folded-over region of the expandable body.