Patent ID: 7621870
Filing Date: 2009-11-24
Classification: A61F

Abstract:
1. A filter device for filtering a body vessel fluid in a patient's body, the vessel having interior walls, the device comprising: a first elongate member having a distal region; and a filter body having an open proximal end region and a closed everted distal end region and having a length and a volume, the filter body being coupled to the distal region of the first elongate member, the filter body being configured to be expanded within the vessel from a delivery configuration to a filtering configuration in which the filter body is expanded to a vessel engaging diameter substantially equal to an interior diameter of the vessel such that the filter body engages the interior walls of the vessel, the filter body in the filtering configuration having at least first and second filtering positions, a length of the everted distal end region in the first position being less than a length of the everted distal end region in the second position, the vessel engaging diameter of the filter body being maintained in both the first and second filtering positions, wherein the distal end region of the filter body is directly connected to a distal ring and wherein the distal ring is fixedly connected to the first elongate member.