The subject device was returned to omsc for evaluation.During the evaluation, omsc confirmed asperity on a part of the forceps elevator of this device, but no other irregularity was confirmed.Also, omsc reviewed the manufacturing history of this device and confirmed no irregularity.The cause of the asperity of the forceps elevator is considered to be the possibility of spark due to the high-frequency cauterization treatment under the condition that the electrosurgical accessory was inside this device or the vicinity of the distal end of this device.However, the exact cause of the reported event could not be conclusively determined.
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Olympus medical systems corp.(omsc) was informed that when the procedure for therapeutic using the subject device was completed and this device was withdrawn from the patient's body, the user facility noticed that the area around the papilla of the patient became white like burns.The user facility reported that during endoscopic sphincterotomy using the electrosurgical accessory made by olympus (kd-v411m-0725) in combination with this device, the papilla has not been cut easily and replacement of the electrosurgical unit was carried out.The physician stated that this phenomenon may be related to papillotomy.No additional treatment was done for burns of the patient, and this case became a follow-up.
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