Activity period: 2012-2013

Research Line: Biophotonic Diagnostics


An optical fibre pH sensor was combined with the optical fibre catheter for the detection of bile containing refluxes of the optical device BILITEC 2000 developed by the group at the beginning of the Nineties and available on the market, produced by Cecchi srl and distributed by EBNeuro

Clinical requirements for the combined catheter were:

  • working pH range: 1-8 pH units

  • pH resolution: ≤ 0.1 pH unit

  • size of the combined probe: ≤ 3 mm in diameter

  • pH response time : ≤ 60 sec

  • Measurement time: 24 h