The invention belongs to the technical field of
biomedical engineering, and specifically relates to a passive
middle ear implantation device and a preparation method thereof. The preparation method steps are as follows: uniformly mix pure
titanium powder and a binder and granulate, and perform injection molding treatment to obtain an injection Then carry out water debonding,
drying, thermal debonding and pre-
sintering treatment in sequence; then carry out
sintering treatment and post-treatment, and finally obtain the passive
middle ear implant device. The method adopts the Micro MIM process, and has made adjustments and improvements in the preparation of fine pure
titanium powder injection materials, mold-assisted filling design, debonding process, and
sintering process. The prepared passive
middle ear implant has
bone conduction and
metal titanium Excellent mechanical properties,
corrosion resistance, and
biocompatibility, as well as strength,
toughness,
elastic modulus, and
fatigue resistance that match
human bone tissue, can overcome the high cost and low efficiency of existing technologies.