Title :
Photonic Crystal Fiber Sensors for Minimally Invasive Surgical Devices
Author :
Rajan, Ginu ; Callaghan, Dean ; Semenova, Yuliya ; Farrell, Gerald
Author_Institution :
Sch. of Electron. & Commun. Eng., Dublin Inst. of Technol., Dublin, Ireland
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.
Keywords :
Bragg gratings; biomedical equipment; blades; fibre optic sensors; force measurement; holey fibres; interferometers; photonic crystals; surgery; ambient temperature variation; fiber Bragg grating-sensorized blades; force sensitivity; interaction force measurement; laparoscopic scissor; microhole-collapsed PCF interferometer; minimally invasive surgical devices; photonic crystal fiber sensors; standard surgical scissor blade; static load measurement; tapered PCF interferometer; Blades; Bragg gratings; Sensitivity; Strain; Surgery; Temperature sensors; Minimally invasive surgical (MIS) devices; photonic crystal fiber (PCF) sensor; Calibration; Fiber Optic Technology; Interferometry; Laparoscopes; Optical Fibers; Surgical Instruments; Surgical Procedures, Minimally Invasive; Temperature;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2011.2179034
