Preparation method and use of medical metal artificial bone trabecula

Abstract

The invention discloses a metal artificial bone trabecula for medical purposes. The structural design of the metal artificial bone trabecula is completed by a computer, and then inputted in an electron beam fusion former; the high temperature generated by electron beams is used to carry out the stratified scanning and high-temperature fusion to titanium alloy powder in the former so as to obtain the metal artificial bone trabecula with bio-cancellous bone morphology, strength and elasticity modulus and a rough and loose outer surface formed by a porous structure. The obtained artificial bone trabecula has mechanical and biological characteristics similar to a human bone, high surface friction coefficient, stable structure and wide range of application, and is applicable to various bone defects, bone filling, bone supporting, bone remodeling and bone repair in a human skeletal system as well as bone restoration of bone remodeling and substitute bone of different bone joints of a human body.

Description

Technical field [0001] The invention relates to the technical field of medical orthopedic medical materials, in particular to the preparation and application of a medical metal artificial bone trabecular. Background technique [0002] As we all know, in clinical orthopedic surgery, bone repair, bone filling and bone support are commonly used treatment methods. Bone defects caused by bone tumors, intervertebral disc lesions, osteoarthritis and trauma are very common in clinical practice. Parts involve various parts of the human skeletal system, including the skull, trunk bones, limb bones and joints. In various operations that require bone grafting, some require filling of bone defects to restore bone continuity and bone volume, some require structural bone grafting to support stability or fusion, and some Reconstruction or reshaping is required to achieve the purpose of restoration. The source of bone graft is divided into autologous bone or allogeneic bone. Due to its st...

AI Technical Summary

Problems solved by technology

In recent years, with the advancement of medical science and technology and the continuous development of medical materials, it has become a reality to use various artificial bone substitutes in bone filling, bone repair, bone support and bone transplantation in the treatment of bone defects, such as the use of triphosphate Composite artificial bone formed by impregnating calcium material with growth factor solution, and degradable composite artificial bone fired from polylactic acid, pearl powder and sodium chloride, etc. The substitute materials of artificial bone have been improved, but most of them still have the problems of unstable therapeutic effect, complicated manufacturing process and high cost, especially the main material of these artificial bone substitutes is made of tricalcium phosphate mixed with dehydrated and decalcified bone powder gelatin Or it is made of calcium carbonate and other polymer materials. Although its inorganic components are close to bone, it is an inactive inorganic compound. After implanted into the bone body, it can play the role of a scaffold, cannot induce bone cell growth, and has poor mechanical properties. , cannot play a good supporting role, and the bone body grows slowly, which takes a long time and affects the treatment effect