ARTICULATING SUTURING DEVICE AND METHOD

摘要

Devices, systems, and methods for suturing of body lumens allow the suturing of vascular puncture sites located at the distal end of a percutaneous tissue tract. An elongated articulated foot of the device can be inserted through the penetration and actuated so that the foot extends along the lumenal axis. The foot can carry suturing attachment cuffs with one end of the cuff adapted to receive a needle, while the other end receives suture. A portion of the foot and/or lumen of the shaft can receive a portion of the suture and can include friction reducing structure that aid with movement of the sutured during removal of the cuffs from within the penetration.

主权项

1. A method for suturing a large puncture in tissue, the method comprising:
inserting a distal end of a device through a large puncture; articulating a first foot of a device so that a first end and a second end of the first foot extend laterally with the puncture aligned therebetween; supporting a first link by the first end and the second end of the first foot; forming a first penetrator path from the device through the tissue and to the first end of the first foot; forming a second penetrator path from the device though the tissue and to the second end of the first foot; forming a third penetrator path through the tissue; forming a fourth penetrator path through the tissue; advancing a first end of a first flexible filament along the first penetrator path and along at least a portion of at least one friction reducing structure to attach to the first link; advancing a first elongate body along the second penetrator path to attach to the first link; coupling the first end of the first flexible filament and the first elongate body via the first link; retracting the first elongate body along the second penetrator path, thereby drawing the first link and the first end of the first flexible filament through the second penetrator path to form a first loop across the puncture; advancing a first end of a second flexible filament along the third penetrator path; and advancing a second elongate body along the fourth penetrator path.