The Over-the-Scope-Clip is effective for endoluminal closure of acute iatrogenic perforations. It allows patients to avoid surgery, and 89% of patients had successful closures without adverse events.
Voermans, R. P., Le Moine, O., von Renteln, D., Ponchon, T., Giovannini, M., Bruno, M., Weusten, B., Seewald, S., Costamagna, G., Deprez, P., & Fockens, P. (2012). Efficacy of endoscopic closure of acute perforations of the gastrointestinal tract. Clinical Gastroenterology and Hepatology, 10(6), 603-608. https://doi.org/10.1016/j.cgh.2012.02.005 (Original work published 2012)