The suction was always against nasal septum,cartilage or bone,and the lateral pore was not closed,so decreased attractive force and avoided blood staining of eyeglass for endoscope.
英
美
释义
吸引剥离器的吸引孔始终朝向鼻中隔软骨或骨,不封闭其外部侧孔,减少了吸力,并避免了血染内窥镜镜面。
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