title: Photonic crystal fiber sensors for minimally invasive surgical devices.
abstract: The measurement of interaction forces in minimally invasive surgical devices, sensorized with photonic crystal fiber (PCF) sensors, is presented in this paper. Two types of PCF sensors are used: a tapered PCF interferometer and a microhole-collapsed PCF interferometer for the detection of interaction forces generated in surgical devices without the influence of ambient temperature variation. The demonstration devices used for force characterization are a laparoscopic scissor and a standard surgical scissor blade. The force sensitivity of each sensorized blade is examined and compared with fiber Bragg grating (FBG)-sensorized blades. Results show that the PCF-sensorized surgical blades outperform the blades fitted with the FBG sensors during static load measurement.
authors.affiliation: Photonics Research Centre, School of Electronic and Communications Engineering, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland 661, Poland. ginu.rajan@dit.ie
authors.forename: Ginu
authors.initials: G
authors.lastname: Rajan
authors.forename: Dean
authors.initials: D
authors.lastname: Callaghan
authors.forename: Yuliya
authors.initials: Y
authors.lastname: Semenova
authors.forename: Gerald
authors.initials: G
authors.lastname: Farrell
mesh_terms: D002138:Calibration; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007368:Interferometry / Q000295:instrumentation*; D020706:Laparoscopes; D019060:Minimally Invasive Surgical Procedures / Q000295:instrumentation; D055100:Optical Fibers; D013525:Surgical Instruments; D013696:Temperature