MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. THUNDERBEAT 5 MM, 45 CM, FRONT-ACTUATED GRIP TYPE S; ULTRASONIC SURGICAL DEVICE

Model Number	TB-0545FCS
Medical Device Problem Code	Material Separation (1562)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The subject device has been returned to olympus for evaluation.In addition to the reportable malfunction mentioned in b5, it was observed, the device passed probe check, the distal end of the item was inspected under a microscope and detected contact marks in the probe and non-insulated area of grasping section, the coating of the grasping section was partially peeled off, and the coating of the probe was partially peeling.The investigation is ongoing, and a definitive root cause of the reported event cannot be determined at this time.If additional information becomes available, this report will be supplemented accordingly.
Event or Problem Description
The customer reported to olympus that the energy release of the thunderbeat was not working.Upon inspection of the customer¿s returned device it was observed, the tissue pad was found worn with metal exposed.This report is being submitted for the malfunction found during evaluation.There was no harm or user injury reported due to the event.
Additional Manufacturer Narrative
This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the results of the investigation and the past investigation results, it is likely the error occurred by the following mechanism: 1.Grasping section was closed without grasping anything while the output in seal & cut mode was activated, (this includes after tissue resection) causing the tissue pad to wear.2.The non-insulated area of the grasping section and the probe came into contact due to wear of the tissue pad.3.The output in seal & cut was activated while the non-insulated area of the grasping section was in contact with the probe.As a result, a contact mark was developed on the probe and the error occurred.Additionally, it is likely the falling of the tissue pad occurred by the following mechanism: 1.Due to performing output while grasping nothing (including the case the user kept activating after cutting tissue), the distal end of the tissue pad was peeled away.2.The tissue pad was fell off because the pad added pulling load.The event can be detected/prevented by following the instructions for use which state: "do not activate output in seal & cut mode while the grasping section is closed without contacting tissue or vessel or ensuring that tissue is transected.Otherwise, a local increase of the temperature due to a friction between the probe tip and the grasping section may result in various forms of damage in the probe tip and/or the tissue pad, such as premature wear, breakage, deformation, and/or falling off inside the body cavity and/or partial separating.When cutting and vessel sealing is performed in seal & cut mode, apply light tension on the tissue so that users can confirm it is transected.Also, stop activation immediately after tissue is transected.Otherwise, the grasping section, the tissue pad, or the probe tip may break and fall off, and partial separating of the tissue pad may occur due to a local increase of temperature caused by the friction between tissue pad and the probe tip during activation.If the grasping section, metal-exposed area around it or the probe tip gets sticked tissue during treatment, wipe it with a soft object such as a piece of gauze or a brush.Do not attempt to scrape it with a sharp object such as a scalpel or the tip of tweezers.Otherwise, the grasping section, metal-exposed area around it, the fluorine resin part, a coated surface or the probe tip may be scratched and damaged, which may lead to fall-off of the damaged part into the body cavity or burns of the tissue by a high-frequency leak current output due to destruction of the insulation structure".Olympus will continue to monitor field performance for this device.

• Brand Name: THUNDERBEAT 5 MM, 45 CM, FRONT-ACTUATED GRIP TYPE S
• Common Device Name: ULTRASONIC SURGICAL DEVICE
• Manufacturer (Section D): AOMORI OLYMPUS CO., LTD.; 2-248-1 okkonoki; kuroishi-shi, aomori 036-0 357; JA 036-0357
• Manufacturer (Section G): AOMORI OLYMPUS CO., LTD.; 2-248-1 okkonoki; kuroishi-shi, aomori
• Manufacturer Contact: todd brill ; 800 west park drive; westborough, MA 01581 ; 5082077661
• MDR Report Key: 18055127
• Report Number: 9614641-2023-01646
• Device Sequence Number: 6060778
• Product Code: GEI
• UDI-Device Identifier: 04953170383519
• UDI-Public: 04953170383519
• Combination Product (Y/N): N
• Initial Reporter Country: GM
• PMA/510(K) Number: K211838
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 12/20/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: TB-0545FCS
• Device Lot Number: KR310692
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 09/20/2023
• Is the Reporter a Health Professional?: No
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 10/19/2023
• Supplement Date Received by Manufacturer: 12/19/2023
• Initial Report FDA Received Date: 11/02/2023
• Supplement Report FDA Received Date: 12/20/2023
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/22/2023
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Unknown
• Patient Sequence Number: 1
• Patient Sex: Unknown