Degradable magnesium metal nail for patch fixation

• Main Authors: CHEN JIE, ZHANG JIAN, DONG DISHENG, YIN LIN, QIN CHANGFU, LU WENLONG
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2021
• 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 utility model provides a degradable magnesium metal nail for patch fixation, which comprises a metal nail body, the metal nail body is a metal wire wound along the spiral direction, and the metal wire is made of pure magnesium or magnesium alloy; the two ends of the metal nail body are a nail head and a nail tail respectively, the nail head is of a triangular pyramid structure, and the nail tail is of a hemispherical fillet structure or a bent structure. The metal nail disclosed by the utility model can be degraded in vivo, so that immunological rejection and foreign body reaction caused by long-term existence of an implant in vivo are avoided, a local weak alkaline environment can be formed at an implanted part due to degradation, and the metal nail has an antibacterial effect; the triangular pyramid structure of the nail head enhances the puncture capacity of the nail to tissues, the hemispherical fillet structure or the bent structure of the nail tail relieves damage of the nail to the human tissues, s