Aorta covered stent

• Main Authors: FU ZELIANG, QIU YUCHEN, SHU CHANG
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2022
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

The aorta covered stent comprises a stent body and a covering film covering the stent body, the stent body comprises a first anchoring part arranged close to the end of the stent body, the covering film comprises a first covering film covering the first anchoring part, and the first covering film can expand in the radial direction to be connected with the blood vessel wall; at least one row of first anchoring pieces are arranged on the outer side of the first covering film in the circumferential direction of the first covering film so that the first covering film can be fixed to the blood vessel wall, and the first anchoring pieces are arranged at the near-end position of the stent body. According to the stent, the covering film covering the periphery of the anchoring part close to the end of the stent body is arranged to be of the expandable structure, the I-type inner leakage risk can be effectively prevented, and the reliability of the covered stent is improved; through at least one row of first anchoring