Patent ID: 8092483
Filing Date: 2012-01-10
Classification: A61M

Abstract:
1. A method for using a filter element attached to a guide structure within a vessel of a patient, the method comprising: inserting the filter element into the vessel wherein the guide structure comprises a corewire and a tube with an inner lumen over at least substantial length of the corewire, the filter element comprises a plurality of polymer fibers in a bundle comprising a first end constrained to the corewire and a second end constrained to the tube; deploying the filter element by moving the corewire relative to the tube to transition the filter element from a low profile configuration to an extended configuration that extends outward from the axis of the guide structure relative to the low profile configuration to form a three dimensional filtration matrix following insertion of the filter element; delivering a distinct treatment device into the vessel over the guide structure; performing a treatment procedure within the vessel using the distinct treatment device after the filter element is deployed to the three dimensional filtration matrix and prior to the application of suction; transitioning the filter element from the extended configuration to a removal configuration by changing the relative positions of the corewire and the tube; and applying suction during at least a portion of the process of transitioning of the filter element to the removal configuration through an aspiration catheter that is loaded over the guide structure.