Determination of temperature and residual laser energy on film fiber-optic thermal converter for diode laser surgery
| Autor: | Yingxin Li, Xiafei Shi, Kong Yaqun, Weichao Liu, Hong Wang, Zhao Jizhi, Dong Xiaoxi |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Laser surgery
Hot Temperature Optical fiber Materials science medicine.medical_treatment law.invention law Materials Testing medicine Fiber Optic Technology Humans Absorption (electromagnetic radiation) Diode Tunable diode laser absorption spectroscopy Equipment Safety business.industry Temperature Thermal Conductivity Equipment Design Ablation Laser Computer Science Applications Thermodynamics Optoelectronics Continuous wave Surgery Laser Therapy Lasers Semiconductor Family Practice business |
| Zdroj: | Computer Assisted Surgery. 22:251-257 |
| ISSN: | 2469-9322 |
| DOI: | 10.1080/24699322.2017.1389403 |
| Popis: | The diode laser was utilized in soft tissue incision of oral surgery based on the photothermic effect. The contradiction between the ablation efficiency and the thermal damage has always been in diode laser surgery, due to low absorption of its radiation in the near infrared region by biological tissues. Fiber-optic thermal converters (FOTCs) were used to improve efficiency for diode laser surgery. The purpose of this study was to determine the photothermic effect by the temperature and residual laser energy on film FOTCs.The film FOTC was made by a distal end of optical fiber impacting on paper. The external surface of the converter is covered by a film contained amorphous carbon. The diode laser with 810 nm worked at the different rated power of 1.0 W, 1.5 W, 2.0 W, 3.0 W, 4.0 W, 5.0 W, 6.0 W, 7.0 W, 8.0 W in continuous wave (CW)and pulse mode. The temperature of the distal end of optical fiber was recorded and the power of the residual laser energy from the film FOTC was measured synchronously. The temperature, residual power and the output power were analyzed by linear or exponential regression model and Pearson correlations analysis.The residual power has good linearity versus output power in CW and pulse modes (RFilm FOTCs can concentrate part of laser energy transferred to heat on distal end of optical fiber, which have the feasibility of improving efficiency and reducing thermal damage of deep tissue. |
| Databáze: | OpenAIRE |
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