A collapsible filter for introduction in a blood vessel of a...

Details A collapsible filter for introduction in a blood vessel of a... A collapsible filter for introduction in a blood vessel of a...

A - Human Necessities

61

B

128/111

A61B 17/00 (2006.01) A61F 2/01 (2006.01)

Patent

CA 2030956

In a collapsible filter for introduction into a blood vessel of a patient and of the kind comprising a number of legs (1-4) diverging from an apical hub (5) and each having a reversely turned hook (1b-4b) at its distal end with respect to said hub (5), each leg com- prises a central element (1a-4a), bent into a smooth quasi-halfsinusoidal form, and two substantially symme- trical curved side elements (1c-4c, 1d-4d) extending on either side of the central element (1a-4a). The filter may as a whole may be unfolded from a collapsed inser- tion condition in which the central and side elements of all legs (1-4) forms a narrow bundle for arrangement in a catheter like insertion instrument into a tulip like filter configuration with the side elements (1c- 4c, 1d-4d) interposed between the central elements (1a-4a) of the legs.

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