Cinch suture and method for using

摘要

This invention is a cinch suture having first and second segments and a locking device joing these segments. The locking device reacts to formations on the first segment to lock the ligature in place and prevent loosening. The locking device has rows of teeth positioned to interact with engaging elements carried by the first segment as the first segment is passed through the locking device to secure the first segment against removal. The locking device teeth are flexible and movable and include preferably two rows of teeth that are in a face to face offset relationship. The first segment engaging elements have a spherical configuration, and the first segment passing through the locking device forms and endless loop for encircling and closing an opening formed by surgical excision of an organ or vessel. The locking mechanism has a segment receiving entrance and a segment removal exit which assists the positioning the first segment into the segment receiving entrance and out of the segment removal exit. The two rows of offset teeth alternately engage spherical engaging elements thereagainst to provide minute adjustment in the tightness of the suture and place pressure on the suture to hold it firmly in place. The invention also includes a method for producing the cinch suture.