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给出了单片机控制半导体激光器血管内照射治疗仪的结构组成及整机特性，分析了提高LD与医用光纤及光针耦合效率的方法，给出了耦会效率理论值及实测耦合效率值。
The structural composition and overall characteristics of a single-chip controlled semiconductor laser intravascular irradiation instrument are given. The method of improving the coupling efficiency between LD and medical fiber and light needle is analyzed. The theoretical values of coupling efficiency and the measured coupling efficiency values are given.