Abstract: Several embodiments disclosed herein relate to apparatus and methods for tissue gathering. In some examples, disclosed is a tissue gathering device that includes a basket and a cylindrical shaft. The basket can include a plurality of tines and the cylindrical shaft can include a lumen that is disposed about a portion of the proximal end of the basket. In some examples, the basket can include 4, 6, 7, or 8 tines. The tines of the basket can have a plurality of different configurations.

Abstract: Several embodiments disclosed herein relate to apparatus and methods for treating a diverticulum. In some examples, disclosed is a clip placement device for diverticulum inversion. The clip placement device can include a clip tube, a clip, a clip attachment structure, and an expansion apparatus. A method for clip placement for diverticulum inversion can also be included. The method can include positioning the distal end of a clip placement device along an outer wall of a colon at a diverticulum, inverting the diverticulum, and advancing a portion of the clip placement device into the inverted diverticulum. The diverticulum can then be expanded with the expansion apparatus. The method can then include engaging the clip with the diverticulum, and withdrawing the clip placement device in a proximal direction such that that clip attachment structure disengages from the clip from the clip placement device.

Abstract: Several embodiments disclosed herein relate to apparatus and methods for treating a diverticulum. In some examples, disclosed is a device for inverting a diverticulum including a device body, a pushing apparatus that includes a rod and a blunt end, and a user actuated structure that provides control of the pushing apparatus. Also disclosed is a method for inverting a diverticulum. The method can include positioning a device along an outer wall of a colon at a diverticulum, inverting the outer surface of the diverticulum with the distal end of the device, and then actuating the user actuated structure such that the pushing apparatus interacts with the diverticulum to further invert the diverticulum.

Abstract: Several embodiments disclosed herein relate to apparatus, methods, and systems for treating a diverticulum. In some examples, disclosed is a clip for treating diverticulum. The clip can include a plurality of petals, points, and keys. Each of petals can include a curved portion, a first arm, and a second arm. A portion of the first arm of each petal can be flexibly interconnected to a portion of the second arm of another petal. The points can be formed by an end of the first arm of one of the petals and an end of the second arm of another of the petals. The petals can form a circular configuration. The keys can be attached to the curved portion of each of the petals and each of the keys can interact with a delivery device for maintaining the clip on the delivery device.

Abstract: An expandable endovascular prosthesis comprising: body having a proximal end and a distal end; a first expandable portion disposed between the proximal end and the distal end, the tubular first expandable portion being expandable from a first, unexpanded state to a second, expanded state with a radially outward force thereon to urge the first expandable portion against a vascular lumen; and a second expandable portion attached to the first tubular expandable portion; the second expandable portion being expandable upon expansion of the tubular first expandable portion. The endovascular prosthesis is particularly useful in the treatment of aneurysms, particularly saccular aneurysms.