BIOCOMPATIBLE FIBER TIP FOR ER--YAG LASER POWER DELIVERY

用于 ER--YAG 激光功率传输的生物相容性光纤头

• 批准号: 2415039
• 负责人: DANH C TRAN
• 金额: $ 22.89万
• 依托单位: INFRARED FIBER SYSTEMS, INC.
• 依托单位国家: 美国
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-05-01 至 1998-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2415039
• 关键词: biomaterial compatibility; biomedical device power system; biomedical equipment development; fiber optics; lasers

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.

描述（改编自申请人摘要）：生物相容性纤维 尖端将由氟磷酸盐（FP）玻璃制成， 2.9 μ m Er：YAG激光器。 当耦合到较长的主干光纤时， 允许在眼内进行精确和无炭的切割和消融， 身体的其他部位。 在第一阶段， 在4英寸长度上2.9微米时从60%提高到70%。 功率 处理也提高到超过6瓦，和加强的方法， 对纤维进行了研究。 光纤头端与Er：YAG激光器配合使用。 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杂质继续得到改善，玻璃成分 研究和预成型件的化学蚀刻。 此外， 扩大生产，如双坩埚技术，将是 开发 将制造各种头端几何形状， 将研究软组织和硬组织样本。