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基于透镜扫描的光声学内镜探针,使用一个可侧向调节的电湿液体透镜

Seungwan Seo, Kiri Lee, Sung Keun Yoo

|June 14, 2025

概括

一个新的液态透镜消除了光声内镜 (PAE) 中的重扫描镜. 这一创新使得更小的探测器成为可能,并大大提高了成像信号强度,以改善内镜应用.

科学领域:

生物医学光学生物医学光学
光学工程是指光学工程.
医疗成像医学成像

背景情况:

现有的光声内镜 (PAE) 系统经常使用外部扫描,导致体积大且复杂的探头.
这种复杂性限制了PAE技术在各种内镜应用中的广泛采用和小型化.

研究的目的:

为PAE开发一个紧而高效的扫描机制.
通过将直接的焦点转移功能集成到内镜探头中,消除了对外部扫描镜的需求.

主要方法:

设计并实施了一种可侧向调节的液态镜头,用于直接转移焦点.
进行了射线跟踪分析和实验验证,以描述镜头的可调性.
液态透镜被集成到PAE探针中进行性能评估.

主要成果:

可调节的液体镜头在45.3 Vrms.显示了显著的轴移 (20 mm) 和侧倾斜 (4.42°).
与传统的阶段扫描相比,将其集成到PAE探头中导致光声信号强度增加了近四倍.
开发的系统显示了用于光声成像应用的增强性能.

结论:

提出的侧调液态透镜为PAE提供了一个紧而有效的解决方案.
这一创新为微型PAE系统铺平了道路,并提高了成像能力.
这项技术对推进内镜诊断工具具有重大前景.

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