Patent ID: 9017363
Filing Date: 2015-04-28
Classification: A61F

Abstract:
1. A filter unit for inserting into a blood vessel, the blood vessel having a wall, the filter unit comprising: a stent-like body having a superior end, an inferior end, and a plurality of superior linear members extending in a common radial plane, each superior linear member having a length and being adapted for engaging the wall of the blood vessel, the stent-like body being able to expand in order to engage the wall of the blood vessel; and two cone-shaped units each having a base opening and a tip, one base opening having a superior circumference and being operatively connected to the superior end of the stent-like body, the other base opening being operatively connected to the inferior end of the stent-like body, wherein the sum of the lengths of the superior linear members is less than the superior circumference, wherein the cone-shaped units are formed from a plurality of triangular elements, each triangular element comprises a pair of filter legs and has a triangle base, wherein each filter leg is connected to one filter leg of the adjacent triangular element at the triangle base but not connected to any filter leg associated with the same triangular element at the triangle base, one of the filter legs of the pair having a tip connection to the other one of the filter legs of the pair at the tip, wherein the tip connections are the only connections between any two of the superior linear members; wherein the triangle base is adapted for arrangement at a circumference of the blood vessel, wherein the tips of the cone-shaped units point towards each other.