内窥镜激光手术用液压驱动大行程变焦镜

2018 7th IEEE International Conference on Biomedical Robotics and Biomechatronics (Biorob) Pub Date : 2018-08-01 DOI:10.1109/BIOROB.2018.8487927

A. Geraldes, A. Jacassi, P. Fiorini, L. Mattos

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引用次数: 1

摘要

内窥镜激光工具允许在微创手术中使用精确的外科激光。然而，由于在手术过程中难以调节激光的焦距，通常使用光纤激光器与组织接触进行烧蚀，这经常导致组织碳化。为了克服这个问题，可以使用MEMS变焦镜。本文介绍了一种用于内窥镜激光工具的大行程MEMS变焦镜，该变焦镜由4mm圆形氮化硅膜组成。采用液压驱动，在保持良好光学质量的同时，可获得较大的光功率。实验表征表明，在9000 Pa的驱动下，该反射镜的光功率范围大于64 m−1。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Large-Stroke Varifocal Mirror with Hydraulic Actuation for Endoscopic Laser Surgery

Endoscopic laser tools allow using the precision of surgical lasers in minimally invasive procedures. However due to the difficulty of adjusting the focal length of the laser during the procedure, ablation is typically performed with the fiber laser in contact with the tissue, which often leads to tissue carbonization. To overcome this problem, MEMS varifocal mirrors can be used. This paper presents a large-stroke MEMS varifocal mirror for an endoscopic laser tool, composed of a 4 mm circular silicon nitride membrane. Using hydraulic actuation, large optical power can be achieved while maintaining good optical quality. Experimental characterization shows that the mirror can achieve an optical power range of more than 64 m−1with 9000 Pa of actuation.

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2018 7th IEEE International Conference on Biomedical Robotics and Biomechatronics (Biorob)

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