FILTERING DEVICE Russian patent published in 2021 - IPC A61F2/01 

FIELD: filtering equipment.

SUBSTANCE: purpose of the present invention is to create a filtering device that allows one to easily change the position of a filter, when the filtering device is used together with an atherectomy device, and that allows one to effectively capture emboli. The present invention offers the filtering device that includes: a core element; a pusher; the first tube; the second tube; the third tube; the first limiting element located on the first tube and made with the possibility of limiting the pushing movement of the third tube in the distal direction; a filter; a ring fixed to the lumen; the first wires; and the second wires; the filter is designed in such a way that the diameter of the lumen is decreased, when the ring shape is deformed, wherein the deformation is caused by the first wires and the second wires, when the pusher fixed to the core element is pushed, when the pusher is in contact with the second tube, and in such a way that the diameter of the lumen is expanded by restoring the ring to its original shape, wherein the restoration is caused, when the pusher fixed to the core element is separated from the second tube.

EFFECT: obtaining the filtering device.

6 cl, 12 dwg