TY - JOUR
T1 - Characteristics of rising temperatures through laser irradiation using a temperature sensor integrated optical fiber probe for soft tissue ablation
AU - Fukano, Hideki
AU - Misumi, Jumpei
N1 - Funding Information:
The authors thank J. Sakurai and T. Iguchi (Department of Radiology, Okayama University Hospital) for their suggestions and encouragement throughout this study. The authors also express their gratitude to Furukawa Electric Co., Ltd. for providing the laser equipment used in this study. This work was supported by JSPS KAKENHI Grant Number JP18K04167 .
Funding Information:
The authors thank J. Sakurai and T. Iguchi (Department of Radiology, Okayama University Hospital) for their suggestions and encouragement throughout this study. The authors also express their gratitude to Furukawa Electric Co. Ltd. for providing the laser equipment used in this study. This work was supported by JSPS KAKENHI Grant Number JP18K04167.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - A new structure composed of silica optical fibers for soft tissue ablation is proposed and fabricated in this study. Laser irradiation and temperature monitoring are simultaneously performed using a wavelength-division multiplexing technique with a single optical fiber probe. A 1.55-μm wavelength range light is used for temperature measurement. The fabricated Fabry–Perot interference temperature sensor comprising a glass capillary and a graded-index multimode fiber exhibits good temperature sensor characteristics. The probe end is terminated with a glass capillary having a declined glass cap. This portion suppresses the reflected light backward to the incident fibers. Because the reflected light at this portion does not affect the interference of internal reflected light, regardless of the outer medium, stable temperature measurement is confirmed. A 1.48-μm laser irradiation method is investigated as a thermal source for soft tissue ablation. The characteristics of rising temperatures through laser irradiation of chicken-breast meat are investigated and indicate sufficient temperature increases for thermal ablation of soft tissue. A good estimation of the thermal protein denaturation region is achieved through a simple analytical equation using the measured value at the fiber tip temperature sensor.
AB - A new structure composed of silica optical fibers for soft tissue ablation is proposed and fabricated in this study. Laser irradiation and temperature monitoring are simultaneously performed using a wavelength-division multiplexing technique with a single optical fiber probe. A 1.55-μm wavelength range light is used for temperature measurement. The fabricated Fabry–Perot interference temperature sensor comprising a glass capillary and a graded-index multimode fiber exhibits good temperature sensor characteristics. The probe end is terminated with a glass capillary having a declined glass cap. This portion suppresses the reflected light backward to the incident fibers. Because the reflected light at this portion does not affect the interference of internal reflected light, regardless of the outer medium, stable temperature measurement is confirmed. A 1.48-μm laser irradiation method is investigated as a thermal source for soft tissue ablation. The characteristics of rising temperatures through laser irradiation of chicken-breast meat are investigated and indicate sufficient temperature increases for thermal ablation of soft tissue. A good estimation of the thermal protein denaturation region is achieved through a simple analytical equation using the measured value at the fiber tip temperature sensor.
KW - Fiber temperature sensor
KW - Laser irradiation
KW - Optical fiber probe
KW - Temperature sensor
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U2 - 10.1016/j.sna.2021.113274
DO - 10.1016/j.sna.2021.113274
M3 - Article
AN - SCOPUS:85120853960
SN - 0924-4247
VL - 333
JO - Sensors and Actuators A: Physical
JF - Sensors and Actuators A: Physical
M1 - 113274
ER -