Intravascular stent strengthening method and intravascular stent

• Main Authors: HAN WENTUO, CHEN QICONG, YI XIAOOU, WAN FARONG, YIN YUPENG, ZHAN QIAN, ZHANG GAOWEI, SUN JINZE, LIU PINGPING
• Format: Patent
• Language: Chinese; English
• Published: 12.05.2023
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DIFFUSION TREATMENT OF METALLIC MATERIAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OR PROTECTION OF EYES OR EARS

The invention provides an intravascular stent strengthening method and an intravascular stent.The intravascular stent comprises a body made of a zinc-containing material, and ion irradiation injection is conducted on the zinc material for manufacturing the intravascular stent.The intravascular stent strengthening method comprises the specific steps that according to clinical medical data, ideal mechanical performance indexes of the intravascular stent are obtained; comprise yield strength, tensile strength and elongation at break; selecting the type of ion implantation; and determining the implantation dose, the implantation energy and the implantation temperature of the selected ions by comparing the mechanical property indexes of the ideal intravascular stent, and injecting the selected ions into the zinc material in an irradiation manner. According to the strengthening method of the intravascular stent and the intravascular stent, the mechanical property of the zinc intravascular stent can be strengthened,