摘要 |
The invention concerns a temporary filter (A) in the shape of a mounted cone (O) fitted at the distal end of a metal or plastic guide (I) which can be of various lengths and diameters (fig. 1). The guide (I) is inserted in a metallic tube (J) and the distal end of said metallic tube (J) is cut out into a crown of approximately four branches (N) which are fixed at the base of the cone (O), the whole assembly being inserted in a catheter carrier guide (C) which ensures the opening and the closure of the system. |