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A multi-band ligator is a specialized medical device designed for endoscopic procedures to treat vascular lesions such as esophageal varices by simultaneously applying multiple rubber bands to ligate abnormal tissues, thereby cutting off blood supply and promoting shrinkage or healing. This device typically consists of a ligation handle with a universal connector, a loading mechanism, and a clear barrel pre-loaded with several bands (often six or more), which are deployed under endoscopic guidance to ensure precise placement.