Intravascular device and method for axially stretching blood...

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent structure

Reexamination Certificate

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C606S001000

Reexamination Certificate

active

07018402

ABSTRACT:
Intravascular devices and methods are provided for forming a vascular graft by axially distending a blood vessel to induce growth. These devices advantageously can be implanted via a catheter, thereby eliminating the need for a more invasive implantation procedure when the stretching is to be done in vivo. Preferably, the device for axially distending a blood vessel to induce growth of the vessel includes an intravascular stretching mechanism attachable directly to an interior lumen portion of the blood vessel, and a means for operating the stretching mechanism to cause the vessel to distend axially. The stretching mechanism can include a pair of wires or stents that engage the blood vessel wall. Components of the stretching mechanism can include a shape memory material.

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