Degradable magnesium metal nail for patch fixation and use method

• Main Authors: CHEN JIE, ZHANG JIAN, DONG DISHENG, YIN LIN, QIN CHANGFU, LU WENLONG, YUAN GUANGYIN
• Format: Patent
• Language: Chinese; English
• Published: 30.03.2021
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DIAGNOSIS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; SURGERY; TREATMENT OR PROTECTION OF EYES OR EARS

The invention provides a degradable magnesium metal nail for patch fixation and a use method, the degradable magnesium metal nail for patch fixation comprises a metal nail body, the metal nail body isa metal wire wound in the spiral direction, and the metal wire is made of pure magnesium or magnesium alloy; the nail head and the nail tail are arranged at the two ends of the metal nail body respectively, the nail head is of a triangular pyramid structure, the nail tail is of a hemispherical fillet structure or a bent structure, and the preparation process of the metal nail comprises one or more stress relief annealing processes. The metal nail can be degraded in vivo, immunological rejection and foreign matter reaction caused by long-term in-vivo existence of the implant are avoided, a local weakly-alkaline environment can be formed at the implanted part through degradation, and an antibacterial effect is achieved; the triangular pyramid structure of the nail head enhances the puncturecapacity of the nail to t