Park Hyeon-Cheol, Seo Yeong-Hyeon, Hwang Kyungmin, Lim Jae-Kwan, Yoon Seung Zhoo, Jeong Ki-Hun
Opt Lett. 2014 Dec 1;39(23):6675-8. doi: 10.1364/OL.39.006675.
This work reports micromachined tethered silicon oscillators (MTSOs) for endoscopic Lissajous fiber scanners. An MTSO comprises an offset silicon spring for stiffness modulation of a scanning fiber and additional mass for modulation of resonant scanning frequency in one body. MTSOs were assembled with a resonant fiber scanner and enhanced scanning reliability of the scanner by eliminating mechanical cross coupling. The fiber scanner with MTSOs was fully packaged as an endomicroscopic catheter and coupled with a conventional laparoscope and spectral domain OCT system. The endomicroscope was maneuvered with the integrated laparoscope and in vivo swine tissue OCT imaging was successfully demonstrated during open surgery. This new component serves as an important element inside an endoscopic Lissajous fiber scanner for early cancer detection or on-demand minimum lesional margin decision during noninvasive endoscopic biopsy.
本文报道了用于内窥镜利萨如光纤扫描仪的微机械栓系硅振荡器（MTSO）。一个MTSO包括一个用于调节扫描光纤刚度的偏置硅弹簧和一个用于调节共振扫描频率的附加质量块，二者集成于一体。MTSO与共振光纤扫描仪组装在一起，通过消除机械交叉耦合提高了扫描仪的扫描可靠性。带有MTSO的光纤扫描仪被完全封装成一个内窥微导管，并与传统腹腔镜和光谱域光学相干断层扫描（OCT）系统相连。该内窥微镜通过集成的腹腔镜进行操作，并在开放手术中成功展示了在体猪组织的OCT成像。这种新组件是内窥镜利萨如光纤扫描仪中的一个重要元件，可用于早期癌症检测或在非侵入性内窥镜活检期间按需确定最小病变边缘。
