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.
