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It was reported during a laparoscopic cholecystectomy, the scissors was removed and wiped off with gauze before the procedure, the probe broke off outside the body.There were no reports of it falling off inside the body.The procedure was completed using a similar device.There were no reports of patient harm.
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This report is being supplemented to provide additional information based on the device evaluation and the legal manufacturer's final investigation.New information added to the following fields: h3, h4 and h6.Corrected fields: b5 and g2 (company representative is not applicable to this event).A review of the device history record found no deviations that could have caused or contributed to the reported issue.The device was returned to olympus for inspection, and the customer's reportable malfunction was confirmed.Based on the results of the investigation, a definitive root cause could not be determined.However, it is likely that the probe broke off occurred due to the following: the ultrasonic output was activated while the probe was in contact with the hard objects such as clips or forceps, or the probe was scraped by using a sharp object, such as surgical tools to remove foreign substance adhesion.As a result, the probe had scratches.A force might have been applied to the probe due to continuous use of the probe with scratches.Therefore, the probe broke at the scratched area.The event can be prevented by handling the device in accordance with the following instructions for use: do not activate ultrasonic output while grasping hard tissue such as bone or highly calcified tissue, or hard objects such a metal clips or other instruments (e.G., metal clips, uterine manipulators, or other instruments).Do not apply only the probe to the tissue with strong force or do not twist or pull the probe up while grasping the tissue.Otherwise, the probe may become too hot and break before the generator gives a warning lamp/sound.Do not activate ultrasonic output while grasping hard tissue such as bone or highly calcified tissue, or hard objects such a metal clips or other instruments (e.G., metal clips, uterine manipulators, or other instruments).Activate the probe only when tissue has been grasped.Do not apply the probe to the tissue with strong force, twist the probe while grasping tissue, or pull the probe up grasping tissue.Otherwise, the probe may become too hot and break before the generator gives a warning lamp/sound.Olympus will continue to monitor field performance for this device.
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