A clinically Practical 6.45 mum Pulsed Surgical Laser

临床实用的 6.45 mm 脉冲手术激光

• 批准号: 6792971
• 负责人: Donald F. Heller
• 金额: $ 10万
• 依托单位: LIGHT AGE, INC.
• 依托单位国家: 美国
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6792971
• 关键词: biomedical equipment development; deuterium; gas; hydrogen; lasers; surgery material /equipment

DESCRIPTION (provided by applicant): An extensive research spent identifies, clinically significant contexts, effort have been to within various the wavelengths and wavelength ranges that optimize the interaction of laser radiation and human tissues. In this, Free Electron Lasers (FELs) have played and continue to play a major role. The results of several recent FEL studies have indicated that under certain pulsed conditions 6.45mu m radiation is ideal for the iablation and precise excision of nearly all soft tissue. To date the only useful source of high energy 6.45mu m radiation remains a facility-sized FEL. Here Light Age proposes to develop a simpler, solid-state laser source able to provide the same desirable tissue ablation characteristics of the FEL's at 6.45mu m but in vastly more "clinically friendly" and affordable format. In this, we plan to exploit a convergence of certain optical technologies we have pioneered: the broadly tunable, solid-state, clinically proven alexandrite laser; robust, commercially and clinically practical recirculating Raman converters; and the largely under-recognized and presently uncommercialized technique of intra-cavity Raman conversion (ICR). We discuss how the proposed approach surmounts certain classic problems in generating 6.45mu m light at power levels deemed requisite for optimal clinical efficacy. The result of this work will be a new tool for medical research that permits more widespread clinical studies to be conducted and, upon conclusive evaluation, can gracefully enter and adapt to the general clinical environment.

描述(由申请人提供)： 一项广泛的研究确定了具有临床意义的背景，努力在各种波长和波长范围内优化激光辐射与人体组织的相互作用。在这方面，自由电子激光(FEL)已经并将继续发挥重要作用。最近几项自由电子激光研究的结果表明，在一定的脉冲条件下，6.45微米的辐射是几乎所有软组织的理想消融和精确切除。到目前为止，唯一有用的6.45微米高能量辐射源仍然是设施大小的自由电子激光。 在这里，光时代建议开发一种更简单的固态激光光源，能够在6.45微米范围内提供与自由电子激光相同的理想组织消融特性，但格式更“临床友好”和负担得起。在这方面，我们计划利用我们首创的某些光学技术的融合：宽可调、固态、临床证明的紫翠宝石激光器；强大的、商业和临床实用的循环拉曼转换器；以及基本上未被认可且目前尚未商业化的腔内拉曼转换(ICR)技术。我们讨论了建议的方法如何克服某些经典问题，在功率水平上产生6.45微米的光，被认为是最佳临床疗效所必需的。这项工作的结果将是一个新的医学研究工具，允许进行更广泛的临床研究，并在最终评估后，可以优雅地进入并适应一般临床环境。