在内镜激光应用期间对温度传感器实时监测的比较评估
Minh Duc Ta1, Van Gia Truong2, Seonghee Lim1
1Industry 4.0 Convergence Bionics Engineering, Marine-Integrated Biomedical Technology Center, Pukyong National University, Busan 48513, Republic of Korea.
Sensors (Basel, Switzerland)
|July 14, 2023
概括
这项研究比较了纤维布拉格格 (FBG) 和白管覆盖热电偶 (W-TC) 传感器,用于实时监测激光治疗期间的组织温度. W-TC表现出与FBG相比较的性能,估值过高最小,证明可用于内镜手术.
科学领域:
- 生物医学工程 生物医学工程
- 光学工程是指光学工程.
- 医学物理 医学物理
背景情况:
- 准确的间歇组织温度监测对于安全有效的激光治疗至关重要.
- 纤维布拉格格 (FBG) 和热电偶 (TC) 传感器是常用的,但它们在内镜激光应用中的性能比较需要进一步调查.
- 由于直接激光吸收,TCs对温度的高估可能是令人担忧的.
研究的目的:
- 为了比较FBG传感器和修改热电偶 (W-TC) 在管状组织内镜和周围激光照射期间的实时温度监测性能.
- 评估使用白色管覆盖热电偶的可行性,以最大限度地减少激光治疗中的温度高估.
- 在ex vivo组织模型和空气中评估传感器的准确性.
主要方法:
- 使用一个600μm核心直径的扩散应用器,周围发射980nm激光 (30W90秒)
- 用于温度测量的纤维支格 (FBG) 传感器和白色管覆盖热电偶 (W-TC).
- 在空气和ex vivo猪肝脏和食道组织中进行了测试.
主要成果:
- 在空气中,W-TC与FBG相比,温度升高差异约为3.5°C.
- 活体肝脏试验显示,FBG和W-TC之间的测量差异小于1°C.
- 活体食道组织试验表明,在激光照射期间,FBG和W-TC之间的温度趋势在激光照射期间是可比的,差异约为2°C.
结论:
- 白色管覆盖热电偶 (W-TC) 是一种可行的传感器,用于在内镜激光照射期间监测间歇性组织温度,并进行最小的高估值.
- 在管状组织激光处理期间,FBG和W-TC传感器在实时温度监测方面表现相似.
- 进一步的体内研究是有必要的,以验证W-TC在胃食道逆流症治疗中对食道粘膜表面温度监测的性能.
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