The manufacturer richard wolf gmbh has issued an advisory notice ((b)(4) / notification #: (b)(4) ) regarding flex.Grasp.Forceps not functioning properly.The users are having difficulty in opening and closing the graspers.In response to the notice, the customer stated they have 2 forceps that were out of use.The suspect device is flex.Grasp.Forceps 6.6fr wl 550mm, part id: 8736.685, batch # 4500352416.