Disclosed are systems, methods, and devices for closing an opening. The methods, systems, and devices include a looped body. The looped body includes a first looped portion having a first apex and a second apex separated by a first distance while the looped body is in a pre-deployed state. The first looped portion is configured to resiliently move to a deployed state in which the first apex and the second apex are separated by a second distance, the first distance being greater than the second distance.