4_2009_sen_15

MODELING OF NATURAL VIBRATIONS OF THE RECONSTRUCTED MIDDLE EAR SUBJECTED TO TYMPANOPLASTY AND PARTIAL STAPEDOPLASTY

Shashkova E.A., Vitebsk State Medical University; the Republic of Belarus

Mikhasev G.I., Doctor of Physical and Mathematical Sciences; Belarusian State University, Minsk, the Republic of Belarus

The reconstructed middle ear consisting of a thin annular plate made of cartilage and a T-type inclined prosthesis replacing the malleus-incus-stapes chain and interposed between the stapes base and the artificial eardrum is considered. A system of non-linear differential equations describing free radially non-symmetric vibrations of the system is derived. The natural frequencies of the system in the case of linear vibrations are investigated.

Middle ear, artificial eardrum, non-symmetric vibrations, T-type inclined prosthesis

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