INSTRUMENT ASSEMBLIES FOR PERFORMING ANATOMICAL TISSUE LIGATION

摘要

An instrument assembly (10) for performing anatomical tissue ligation, includes a passage defining member (12) having a distal end (20) for being disposed at an internal operative site, a proximal end for being disposed externally of the internal operative site, and a passage (24) between the distal and proximal ends. A grasping member (16) is disposed at the distal end (20) of the passage defining member (12) for grasping anatomical tissue at the internal operative site. A contractible ligature loop (78) of filamentous ligature material (76) is carried by the passage defining member (12), and is disposed externally of the distal end (20) thereof for positioning around the anatomical tissue grasped by the grasping member (16). The ligature loop (78) is contractible from externally of the internal operative site around the anatomical tissue to form a ligature, allowing a complete anatomical tissue ligation to be performed with a single instrument assembly (10).