Magnesium alloys have shown great advantages and potential because of their excellent mechanical properties, good biocompatibility and degradability.
Processing of medical equipment spare parts
The biocompatibility of magnesium alloy was confirmed in the early clinical application in 1907, but it failed because the magnesium alloy corroded too fast in vivo and produced excessive hydrogen under the skin. To study the corrosion characteristics of magnesium and magnesium alloys and improve the surface modification technology have become the key to their application in the field of biomaterials. With the continuous research and testing of magnesium, the corrosion resistance of magnesium alloys has been greatly improved. What are the advantages and characteristics of magnesium alloy processing medical equipment parts?
Processing of magnesium alloy parts
1、 Characteristics and advantages of magnesium alloy processing:
(1) Magnesium is one of the most abundant cations in the human body. It participates in almost all metabolic processes in the human body. It has the effect of reducing pressure, helping sleep and relaxing expression, and effectively preventing and treating certain diseases.
(2) It has good mechanical properties and is very close to the elastic modulus of human bone, which can reduce the adverse reaction caused by the mismatch of elastic modulus between the implant and human bone, thus promoting the healing of bone tissue.
(3) It is biodegradable and can avoid the pain and mental pressure caused by the second operation to remove magnesium alloy.
Processing of medical equipment spare parts
2、 Application of magnesium alloy processing in clinical medicine:
Magnesium plays an important role in the new anti metabolism process. Magnesium is also the main component of biological bone, which can promote the formation of bone, teeth and cells and plays an important role in regulating bone mineral metabolism. The density of magnesium alloy is the closest to that of human bone, which has unique advantages (the density of magnesium alloy is about 1.7g/cm ³、 Human bone density is about 1.75 g/cm ³）。 In addition, due to the metal material characteristics of magnesium alloy, its plasticity, stiffness, processing performance, etc. are far superior to the biodegradable polymer materials such as polylactic acid that have started clinical application, so it is more suitable for clinical applications in bone and other hard tissue repair and interventional therapy.
At present, magnesium alloys are mainly used in the following fields:
Wheelchairs and other rehabilitation medical devices
Plastic surgery biomaterials
Orthopedics (bone nail, bone plate)
Cardiovascular stents
Staple stapler
Nerve connector, etc