INNOVATIVE CONCEPT FOR A 3-MICRON LASER SCALPEL

描述（来自申请人摘要的逐字）：由于强水 吸收带在约3微米光谱区，3微米激光辐射是 非常适合外科手术，特别是仅在浅的情况下 需要切割束穿透（20-30微米量级的切割深度）。 该提案的目的是开发一种新的3-微型激光手术刀技术， 立体定向手术使用的技术方法，将围绕 众所周知的3-微辐射传递到内部器官的问题。出来 创新的方法是基于取代目前技术上复杂的 将手术3-微辐射光纤传输到接受手术的器官 通过将激光二极管源辐射的良好开发的光纤传送到光纤中， 0.9-1-微区的光谱，其随后下转换成3微米 激光辐射直接在小的手术器械尖端。我们将开发一个 微型30 Hz重复频率，3 μ m激光辐射的3 mJ/脉冲源， 其是基于通过一个泵浦的激活的电介质单晶， 市售的低损耗石英玻璃光纤 InGaAs二极管条堆。基于成熟的激光二极管泵浦源/光纤 技术，拟议的系统在真正容易商业化，并将 然后结合到第二阶段光纤尖端激光手术刀中， 手术 拟定商业应用：不可用

DESCRIPTION (Verbatim from the Applicant's Abstract): Due to the strong water absorption bands in the about 3micro spectral region, 3-micro laser radiation is extremely appropriate for surgical intervention, especially where only shallow cutting beam penetration (incision depth of the order of 20-30 micro) is needed. The aim of the proposal is to develop a novel 3-micro laser scalpel technology for stereotactic surgery using a technical approach that would go around the well-known problem of the 3-micro radiation delivery to internal organs. Out innovative approach is based on replacing the presently technically complicated fiber delivering of the operative3-micro radiation to the undergoing surgery organ by a well developed fiber delivering of the laser diode source radiation in the 0.9-1-micro region of spectrum with its subsequent down-conversion into a 3-micro laser radiation directly in a small surgical instrument tip. We will develop a miniature 30 hz repetition rate, 3mJ/pulse source of the 3-micro laser radiation, which is based on an activated dielectric single crystal pumped through a commercially available low-loss silica glass optical fiber by a commercial InGaAs diode bar stack. Based on mature laser diode pump source/fiber optics technologies, the proposed system in truly easily commercializable and will be then incorporated into a phase II fiber-tip laser scalpel for stereotactic surgery. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE