PMC2799975_01
Prograsp Forcep with loosened bolt (encircled).
ymj-51-148-g001.jpg
PMC2799975_01_ymj-51-148-g001.jpg
F1
As the forcep itself could not be removed, the trocar with the instrument was removed in whole unit form, leading to the discovery of the loosened bolt which had impeded the removal of the forcep (Fig. 1).