BIOCOMPATIBLE FIBER TIP FOR ER--YAG LASER POWER DELIVERY

描述(摘自申请者的摘要)：一种生物兼容纤维 TIP将由氟磷酸盐(FP)玻璃开发，用于 2.9微米Er：YAG激光器。当连接到更长的主干光纤时，这个尖端 允许精确且无碳的切割和消融眼睛内部和 身体的其他部位。在第一阶段，光纤传输是 在4英寸的长度上，2.9微米时从60%提高到70%。电源 处理能力也改进到6瓦以上，加固方法 对纤维进行了研究。纤维尖端与Er：YAG激光一起使用 激光消融软组织和硬组织样本。在第二阶段， FP光纤尖端的传输、强度和功率处理将 通过减少OH杂质、玻璃成分继续改进 研究，以及预制件的化学蚀刻。此外，还可以使用以下方法 扩大生产，如双熔炉技术，将是 发展起来的。各种尖端几何形状将被制造出来，并产生相互作用 将对软组织和硬组织样本进行研究。

DESCRIPTION (Adapted from applicant's abstract): A biocompatible fiber tip will be developed from fluorophosphate (FP) glass for use with the 2.9-um Er:YAG laser. When coupled to a longer trunk fiber, this tip allows precise and char-free cutting and ablation inside the eye and at other sites in the body. During Phase I, the fiber transmission was improved from 60% to 70% at 2.9 microns over a 4 inch length. Power handling was also improved to over 6 Watts, and methods of strengthening the fiber were investigated. The fiber tip was used with an Er:YAG laser to ablate both soft and hard tissue samples. During Phase II, the transmission, strength, and power handling of the FP fiber tip will continue to be improved by reducing OH impurities, glass composition studies, and chemical etching of the preform. In addition, methods of scaling up production, such as the double-crucible technique, will be developed. Various tip geometries will be fabricated and the interaction with both soft and hard tissue samples will be studied.