Flexible delivery of Er:YAG radiation at 2.94 µm with negative curvature silica glass fibers: a new solution for minimally invasive surgical procedures.
Flexible delivery of Er:YAG radiation at 2.94 µm with negative curvature silica glass fibers: a new solution for minimally invasive surgical procedures.
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DOI：
10.1364/boe.4.000193
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发表时间：
2013-02-01
影响因子：
3.4
通讯作者：
Shephard JD
中科院分区：
文献类型：
--
作者：
Urich A;Maier RR;Yu F;Knight JC;Hand DP;Shephard JD
我们提出了高能量微秒脉冲通过空芯负曲率光纤在2.94 µm的传输。输送的能量密度远远超过生物组织操作所需的能量密度，并且为2300 J/cm 2的量级。在干燥和含水条件下的硬组织和软组织上证明了组织消融，对纤维没有不利影响或对端面没有灾难性损坏。能量以良好限制的单模引导，允许灵活地将小且可控的聚焦点递送到操作点。因此，提出了现有Er：YAG输送系统的机械和化学稳健替代方案，为微创外科激光手术的新途径铺平了道路。
We present the delivery of high energy microsecond pulses through a hollow-core negative-curvature fiber at 2.94 µm. The energy densities delivered far exceed those required for biological tissue manipulation and are of the order of 2300 J/cm2. Tissue ablation was demonstrated on hard and soft tissue in dry and aqueous conditions with no detrimental effects to the fiber or catastrophic damage to the end facets. The energy is guided in a well confined single mode allowing for a small and controllable focused spot delivered flexibly to the point of operation. Hence, a mechanically and chemically robust alternative to the existing Er:YAG delivery systems is proposed which paves the way for new routes for minimally invasive surgical laser procedures.