Journal of Otology & RhinologyISSN: 2324-8785

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Intracochlear pressure before and after stapedotomy with new chamber stapes prosthesis

Monika Kwacz, Jacek Sokołowski, Kazimierz Niemczyk and Tadeusz Kwacz

Institute of Micromechanics and Photonics, Warsaw University of Technology, Poland
Medical University of Warsaw, Poland
Biomechatronics Ltd. (in organization, POLAND)

: J Otol Rhinol


Stapes prosthesis is a medical device that induces pressure wave in the cochlea and allows restoring hearing in patients with stapes otosclerosis. The postoperative hearing results are closely related to differential intracochlear pressure (DIP) between scala vestibuli (SV) and scala tympani (ST). Our new chamber stapes prosthesis (ChSP) has many advantages over currently used piston prosthesis. The design and functioning of the fluid-filled ChSP (Fig.1) mimics the natural stapes-vestibule interface, overcomes problems associated with length of piston prosthesis, and provides fluid volume displacement comparable to the normal ear


Monika Kwacz has completed her PhD from Warsaw University of Technology (Poland). She works as an Associate Professor at the Institute of Micromechanics and Photonics. She conducts biomedical research, manages R&D projects and is the Scientific Supervisor of the PhD students. She has published more than 25 papers in reputed journals.


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