A transvascular knot tying device and methods of use thereof

Abstract

The application discloses a knotting device through a blood vessel and a use method thereof, which comprises an inner core unit, a knotting unit and a driving unit. The inner hole upper part of the inner core unit is used for threading a cable, and the inner hole lower part is provided with the knotting unit. The knotting unit moves in the inner hole to control the working state of the cable. The driving unit is used for controlling the movement of the knotting unit. The driving unit is flexible to extend along the deformation of the blood vessel. The driving unit moves in the blood vessel to push the knotting unit to extrude the cable to the inner wall of the inner hole, so that the knotting of the cable is realized. The inner space of the inner core unit is fully utilized to assemble the knotting unit. The structure size is not increased, the volume of the element left in the human body is reduced, the operation risk and the patient burden are reduced, the long-distance knotting operation is realized, and the stability and the operation convenience of the knotting are improved.

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