Micrograft for the treatment of intracranial aneurysms and method for use

Abstract

A device for occluding a vasculature of a patient including a micrograft having an absorbent polymeric structure with a lumen of transporting blood. The micrograft has a series of peaks and valleys formed by crimping. The occluding device is sufficiently small and flexible to be tracked on a guidewire and/or pushed through a microcatheter to a site within the vasculature of the patient. Delivery systems for delivering the micrografts are also disclosed.

1 . A system for treating an aneurysm in a vessel of a patient, the system comprising:
 an implantable occluding device configured for introduction into a lumen of the vessel, the occluding device having a first lumen for passage of blood into the first lumen;   a delivery member, the occluding device mounted on the delivery member such that a portion of the delivery member extends into the first lumen of the occluding device; and   a catheter having a second lumen, the delivery member extending through the second lumen;   wherein proximal movement of the delivery member exposes the first lumen for passage of blood therethrough in a capillary action as blood displaces the delivery member as the delivery member is withdrawn proximally within the first lumen.   
     
     
         2 - 20 . (canceled)