Metal injection molding was first used to make some metal orthodontic appliances in medical treatment. These precision products have a very small size, good biocompatibility and corrosion resistance. The main material used is 316L stainless steel. At present, orthodontic brackets are still the main products in the industry.
Surgical tools such as medical forceps are required to have high strength, low blood pollution and be able to achieve erosive disinfection procedures. The design flexibility of this technology can meet the application of most surgical tools. At the same time, it also has the advantages of the process, which can manufacture all kinds of metal products at a low cost. It is gradually replacing traditional production technology as the main manufacturing method.
MIM technology in the field of human implantation progress is relatively slow, mainly because the product certification and acceptance need a long period of time. At present, the technology can be used to produce the parts as the replacements of bones and joints, and the main metal injection molding material is Ti alloy.
MIM technology can also be used to produce various medical equipment parts. The sound tube with a complex shape can be obtained by sintering these metals after forming. In order to make the surface of the sound tube smooth, it is necessary to go through a glass bead sandblasting process afterwards.
Metal injection molding can also be used to produce many products in medical technology, including an interventional stent, radiation shielding of tungsten high-density alloy syringe, microsurgical manipulator, micropump endoscopic parts and drug inhaler.