[1] Tech Univ Munich, Dept Micro Technol & Med Device Engn, MIMED, Garching, Germany
[2] Tech Univ Munich, Cent Inst Med Engn, IMETUM, Garching, Germany
[3] Univ Leipzig, Dept Otorhinolaryngol Plast Surg, Leipzig, Germany
[4] Univ Leipzig, ICCAS, Leipzig, Germany