Patent ID: 6126673
Filing Date: 2000-10-03
Classification: A61F

Abstract:
A vascular filter for placement in a blood vessel for preventing the movement of emboli in the blood stream of a human, the filter comprising:a set of filter-wires that diverge from a central joining region forming an emoboli-capturing array, the filter-wires having portions that engage the vessel wall; andan anchoring assembly defined by at least one set of struts joined centrally with said set of filter-wires, wall engaging portions of said anchoring assembly constructed and arranged to engage the wall of said blood vessel in a manner anchoring said filter in position, the region of said anchoring being spaced from the region of contact of said set of filter wires with said vessel wall, wherein the struts extend from said central joining region a distance that is shorter than the distance said filter-wires extend from the central joining region, and diverge at a greater angle relative to the longitudinal axis of the filter than said filter-wires, the spacing of the regions of contact of said filter-wires and said struts with the vascular wall being selected to stabilize said filter in said vessel in a generally centered relationship.