Covered stent for preventing SINE

• Main Authors: WANG SHENGZHANG, LI MEIXUAN
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2023
• 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 invention discloses a covered stent for preventing SINE, which comprises a stent main body and a covering film, the covering film is stacked, the stacking direction is the axial direction of the covered stent, and the length of the stacked covering film is approximately the same as the length of the stent main body. The stent body comprises a plurality of sections, specifically, the stent body sequentially comprises a front-end stent section, a middle stent section and a tail stent section in the propelling direction of the stent, the tail stent section is provided with a first elastic structure section, and the first elastic structure section comprises a plurality of first elastic pieces which are connected and arranged in the circumferential direction of the covered stent and has elastic force in the circumferential direction. According to the covered stent for preventing the SINE, the stacked covering film can be relatively pulled to be flat on the large bending side passing through a bow, the covering