SUTURE CLIPS, DELIVERY DEVICES AND METHODS

摘要

A catheter (1) comprises a collet cage (2) with a plurality of flexible collet fingers (4) that captivate a suture clip ring (8) and a suture clip plug (3) for assembly with a suture (7). An outer sliding sleeve (30) constrains the collet fingers (4) when distally advanced to minimize potential trauma during delivery and assembly of the suture clip (3a) in close proximity to the stitched tissue. Proximal retraction of the sliding sleeve (30) coupled with the distal advancement of a pusher (24) against cam surfaces of the inner walls of the collet fingers causes the collet fingers to open. The catheter is designed to hold and assemble the suture clip (3) in a first position and release the suture clip and sever the suture ends proximal to the suture clip in a second position.