The performance characteristics of medical precious metal materials mainly include biocompatibility, corrosion resistance, stability and mechanical properties.
Biocompatibility is one of the most important characteristics of medical precious metal materials, refers to the material in the physiological environment will not cause significant biological reactions. Platinum, gold, silver and other medical precious metal materials have excellent biocompatibility, can be used in the manufacture of long-term implanted medical devices, such as pacemakers, artificial joints and so on.
Corrosion resistance is also one of the important characteristics of medical precious metal materials. Medical devices are often in contact with various body fluids and the environment, so the corrosion resistance of the material is very important. Gold, silver, platinum and other precious metal materials have a very high chemical stability, can be in a variety of harsh environments to maintain the original performance and shape, widely used in the manufacture of medical equipment.
In addition, medical precious metal materials also have good mechanical properties. They have high strength, hardness and wear resistance, and can meet the requirements of medical devices in the use of complex stress environment. At the same time, the ductility and toughness of precious metal materials are also very good, can be made into complex shapes and structures through a variety of processing methods, for the design and manufacture of medical devices to provide convenience.
As an example, gold is one of the commonly used medical precious metal materials, with good biocompatibility and corrosion resistance, widely used in the manufacture of dental restorative materials, pacemaker electrodes and other medical devices. Silver is also commonly used in the manufacture of medical devices such as silver dressings and silver ion antimicrobial agents, which are widely recognized for their good antimicrobial properties and biocompatibility.
In general, the performance characteristics of medical precious metal materials make them have a wide range of prospects for application in the field of medical devices. However, in practical applications, appropriate materials and processing methods need to be selected according to specific needs and scenarios to ensure the safety and effectiveness of medical devices.