An assessment of radio frequency induced heating of an implant

The implant model obtained by 3D EM and thermal co-simulation was used to estimate power deposition and temperature rise due to the presence of bare titanium rods placed in a high permittivity medium for uniform and non-uniform 64 MHz incident electric fields. No correlation between power deposition and temperature rise were observed. Worst-case temperature rise for an implant with a fixed diameter and variable length excited by a tangential electric field with constant amplitude can be estimated using the implant thermal model. For other cases further extensive investigations are required.