Demonstration of a flexible, highly sensitive catheter for high resolution manometry based on in-fibre Bragg gratings

C. Bueley; P. Wild

doi:10.1117/12.970257

17 October 2012 Demonstration of a flexible, highly sensitive catheter for high resolution manometry based on in-fibre Bragg gratings

C. Bueley, P. Wild

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84211Q (2012) https://doi.org/10.1117/12.970257
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

This work presents a fibre optic-based flexible catheter for high resolution manometry, with sensing pods located at a pitch of 10 mm and an overall diameter of 2.8 mm. In-fiber Bragg gratings act as the sensing elements within these sensing pods. Absent in each sensing pod are rigid anchor points representing a novel departure from comparable designs and resulting in increased sensitivity and decoupling from axial loading. A pressure sensitivity of 1.8 pm/mmHg and axial sensitivity of 11 mmHg/N of applied load is demonstrated. Crosstalk between individual sensors is characterized and a compensation scheme is developed and validated.

Citation Download Citation

C. Bueley and P. Wild "Demonstration of a flexible, highly sensitive catheter for high resolution manometry based on in-fibre Bragg gratings", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84211Q (17 October 2012); https://doi.org/10.1117/12.970257

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