Ligator system of interval backing ring with be located between clitellum

A ligature ring for exerting ligature after the expansion encircle will through this ring in its ligator system that loosens the biological anatomy position of ligature under the state, it keeps tub the ligator of (2) (1) including having, should keep guan zaiqi currently to want the anatomy position of ligature and tighten with its surface to keep a plurality of front and backs to arrange inside holding .the ligator system includes at least one interval backing ring (12), and this interval backing ring is arranged on this keeps tub (2) between two ligature rings and keep these two ligature rings spaced apart each other on keeping the longitudinal axis L orientation of tub (2).