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1问题的提出目前国内广泛应用于外科手术和理疗中的交直流COZ激光都在300W以内，它具有组织切割出血少、手术视野清晰、无交叉感染等特点，但在整形美容应用中受到一定的限制。美国科以人公司（C0hereINC）于90年代率先研制生产射频激励高能、超脉冲（ULTRAPULSE）激光整形美容
1Problems raised At present, AC-DC COZ lasers that are widely used in surgery and physical therapy in China are all within 300W. They have features such as less tissue bleeding, clear surgical vision, and no cross-infection, but they are subject to certain restrictions in plastic and cosmetic applications. limit. American company (C0hereINC) pioneered the development and production of RF-excited high-energy, ultra-pulse (ULTRAPULSE) laser plastic surgery in the 1990s