ANTI-PULMONARY EMBOLISM FILTER AND KIT FOR THE STORAGE AND THE INSTALLATION OF SAID FILTER

摘要

The present invention relates to an anti-pulmonary embolism filter, of the type made of an elastic thread with a residual spring effect, characterized in that it is shaped in a spiral (1) with three non-contiguous turns (2, 3, 4). whose middle turn (3) has a diameter (d3) greater than those (d2, d4) of the other two turns, that this diameter (d3) is chosen close to the value of the half-circumference of the vena cava in the area where the filter must be installed to optimally ensure the function of holding the filter in place by flattening the vena cava.