DUAL STENT

摘要

The present invention relates to a dual stent. The dual stent comprises: a first body formed in a hollow cylindrical shape by crossing of metal wires; and a second body formed in a hollow cylindrical shape by crossing of metal wires, and formed to have a shorter length than the first body. The second body wraps the outer circumferential surface of the first body. A film is formed only on the inner surface of the first body to come in contact with the inner surface of the first body. The dual stent improves expansion power needed in expanding a diameter of a stricture part having a narrowed diameter, so a stricture part can be sufficiently widened and improved movement preventing properties are ensured.;COPYRIGHT KIPO 2016