Filter with triangular fingers

摘要

The filter includes a plurality of resilient fingers (2) which can be unfolded and are provided at their free ends with centering and bearing runners (5) for engaging an interior wall of a blood vessel. In accordance with a preferred embodiment of the invention, the fingers and the runners consist of flexible wires that are assembled with groups of two adjacent fingers being joined by a wire part folded in the shape of a hairpin.