LUMINAL STENT

• Main Authors: XIAO, Benhao, LIU, Zonglin
• Format: Patent
• Language: English; French; German
• Published: 06.11.2019
• 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

A luminal stent includes a tube body (10) that can be compressed and expanded in the radial direction, and an anti-leakage structure (20); the tube body (10) is divided by the anti-leakage structure (20) into a first tube body (11) positioned on one side of the anti-leakage structure (20) and a second tube body (12) positioned on the other side of the anti-leakage structure (20), at least part of the first tube body (11) being encircled by the anti-leakage structure (20). In a compressed state, the second tube body (12) and the anti-leakage structure (20) together with the first tube body (11) encircled by the anti-leakage structure (20) have the maximum compression diameter when compressed to the extreme limit by radial force distributed uniformly along the circumferential direction of the luminal stent, the maximum compression diameter of the anti-leakage structure (20) and the first tube body (11) encircled by the anti-leakage structure (20) being greater than or equal to the maximum compression diameter of the second tube body (12). The contact force of the luminal stent in a sheath (30) with a sheath core (31) is more uniform, and can prevent the luminal stent from slipping during the release procedure, avoiding the risk of luminal stent displacement.