A temperature-compensated optical fiber force sensor for minimally invasive surgeries

Z. Mo; W. Xu; N. Broderick; H. Chen

doi:10.1117/12.2202539

22 December 2015 A temperature-compensated optical fiber force sensor for minimally invasive surgeries

Z. Mo, W. Xu, N. Broderick, H. Chen

Proceedings Volume 9668, Micro+Nano Materials, Devices, and Systems; 966850 (2015) https://doi.org/10.1117/12.2202539
Event: SPIE Micro+Nano Materials, Devices, and Applications, 2015, Sydney, New South Wales, Australia

Abstract

Force sensing in minimally invasive surgery (MIS) is a chronic problem since it has an intensive magnetic resonance (MR) operation environment, which causes a high influence to traditional electronic force sensors. Optical sensor is a promising choice in this area because it is immune to MR influence. However, the changing temperature introduces a lot of noise signals to them, which is the main obstacle for optical sensing applications in MIS. This paper proposes a miniature temperature-compensated optical force sensor by using Fabry-Perot interference (FPI) principle. It can be integrated into medical tools’ tips and the temperature noise is decreased by using a reference FPI temperature sensor. An injection needle with embedded temperature-compensated FPI force sensor has been fabricated and tested. And the comparison between temperature-force simulation results and the temperature-force experiment results has been carried out.

Citation Download Citation

Z. Mo, W. Xu, N. Broderick, and H. Chen "A temperature-compensated optical fiber force sensor for minimally invasive surgeries", Proc. SPIE 9668, Micro+Nano Materials, Devices, and Systems, 966850 (22 December 2015); https://doi.org/10.1117/12.2202539

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