Duraibabu, D,Kelly, N,Poeggel, S,Flood, H,Yuan, HW,Dooly, G,McGrath, D,Tosi, D,Lewis, E,Leen, G,Lewis, E

Optical fibre pressure and temperature sensor system designed for urodynamic applications

SIXTH EUROPEAN WORKSHOP ON OPTICAL FIBRE SENSORS

2016

January

Published

1

()

fabry perot interferometer fibre bragg grating urodynamic lower urinary tract

This paper presents an optical fibre pressure and temperature sensor (OFPTS) system, which is adapted for use as a urodynamic pressure measurement system (UPS) for differential pressure measurement with temperature compensation. The OFTPS is based on a Fabry Perot interferometer (FPI), which acts as a pressure sensor and includes an embedded fibre Bragg grating (FBG) for temperature measurement. The sensor system is evaluated in a lower urinary tract (LUT) simulator, which simulates the bladder, rectum and detrusor muscle. The system was benchmarked against a commercially available urodynamic system, at the University Hospital Limerick (UHL) Urology Clinic. Both systems demonstrate a high correlation with a relative pressure variation of less than +/- 2.8cmH(2)O for abdominal and +/- 4cmH(2)O for vesical pressure. The repetitive measurement of the OFPTS system in the LUT simulator against the commercial system demonstrated the high repeatability. Furthermore, the low fabrication cost makes the OFPTS a potentially interesting instrument for urodynamic and other medical applications.

10.1117/12.2236162