Aortic dissection blood vessel isolation covered stent
An aortic dissection blood vessel isolation covered stent comprises a tubular covering film and a plurality of annular stents which are sequentially sewn on the tubular covering film in the axial direction of the tubular covering film, three branch pipe openings are formed in the side portion of the...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | An aortic dissection blood vessel isolation covered stent comprises a tubular covering film and a plurality of annular stents which are sequentially sewn on the tubular covering film in the axial direction of the tubular covering film, three branch pipe openings are formed in the side portion of the thick end of the tubular covering film and correspond to a first branch artery, a second branch artery and a third branch artery of an aorta of a human body respectively, and the first branch artery, the second branch artery and the third branch artery are communicated with the annular stents. The thick end and the thin end of the tubular covering film are respectively provided with a layer of expansion covering film, the diameter of the tubular covering film from the thick end to the thin end is gradually reduced, the branch pipe openings are respectively and correspondingly connected with three branch pipe covering films, and the branch pipe covering films respectively correspond to a first branch artery, a seco |
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