The invention discloses a filter capable of recycling thrombi. The filter is placed at the postcava position between a renal
vein and an iliac
vein through an interventional method, and
lower limb thrombi can be prevented from going upwards to enter the lungs to cause
pulmonary embolism. The filter capable of recycling the thrombi is characterized in that the two-layer filter
screen design is adopted, the two-layer filter
screen design comprises a near-end screen, a far-end screen and supporting rods which are connected between the near-end screen and the far-end screen, and the supporting rods adopt the internal concave type design; the internal concave design comprises internal concave portions and near-end points and far-end points which are connected to the upper sides and the lower sides of the internal concave portions, the near-end points and the far-end points are attached to the inner wall of a
blood vessel to play a role in supporting the
blood vessel, anchor thorns are arranged on the near-end points to play a fixing role, and the filter is prevented from being displaced under scouring of blood. According to the filter capable of recycling the thrombi, the
thrombus filtering effect is good, locating can be repeatedly performed, fixing is stable, and the implanting time can be prolonged.