Abstract
To limit functional surgical failure and reduce the rate of revision surgery in case of surgical ossicular chain reconstruction, a piezoelectric device was developed for assessment of ossicular chain vibrations during the middle ear surgery. The device resembled a pen and consisted of a reusable main body and a disposable sensitive head including piezoelectric polymer sensor. Almost all of components of the device were made of polymer for light weight and for acoustic impedance matching to the middle ear system. Several frequencies can be analyzed simultaneously and several measures can be taken by time. The results showed that the device can record normal and reconstructed ossicular chain vibration in response to an acoustic stimulation, with similar results to those achieved by laser Doppler vibrometer. This light, handheld and low-cost device allows fast, easy and safe assessments of normal ossicular chain mobility and ossicular chain reconstruction efficiency. Primary pre-clinical trial showed very promising performance of the device that could be used to qualitatively control ossiculoplasty during real-time surgical procedure. Clinical assessments will be done to further evaluate the real-life performance of the device.
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Acknowledgements
The authors wish to acknowledge the contribution of Frederic Bouyge, technology transfer officer of SAYENS, who was involved in the project management. They want to thank Libor Rufer and Skandar Basrour (TIMA, CNRS UMR 5159) for preliminary discussions.
The research work was funded by SAYENS (Technology Transfer Office, University of Lorraine). This work was also supported by French CPER MatDS project, European FEDER and PIA project “Lorraine Université d’Excellence”, reference ANR-15-IDEX-04-LUE.
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Nguyen, V.S., Rouxel, D., Vincent, B. et al. A new device for real-time peroperative monitoring of ossicular chain reconstruction during middle ear surgery. J Clin Monit Comput 34, 827–832 (2020). https://doi.org/10.1007/s10877-019-00364-2
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DOI: https://doi.org/10.1007/s10877-019-00364-2