MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. THUNDERBEAT OPEN FINE JAW TYPE X; ULTRASONIC SURGICAL DEVICE

Model Number	TB-0009OFX
Medical Device Problem Code	Material Split, Cut or Torn (4008)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/17/2025
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported the subject device exhibited torn teflon.There were no reports of patient harm.
Additional Manufacturer Narrative
E1 - address 1 (documented here in it¿s entirety due to character limitations in respective field): jeonbuk special self-governing province jeonju-si wansan-gu bonggok 2-gil the investigation is ongoing.A supplemental report will be submitted when the investigation is completed or if additional information becomes available.
Additional Manufacturer Narrative
This supplemental emdr is being submitted to correct the manufacturing date: 4/1/2024 h4.
Event or Problem Description
It was further reported that the issue occurred during a therapeutic procedure during sedation with the device inside the patient.
Additional Manufacturer Narrative
This supplemental report is being submitted to provide the results of the legal manufacturer's final investigation.The device was returned to olympus for inspection and the reported failure was confirmed.A root cause could not be identified.Based on the results of the investigation, it is likely the following led to the malfunction: 1) during the output activation in seal & cut mode, nothing was grasped in between the grasping section and the distal end of the probe (this includes after tissue resection).Therefore, the tissue pad was worn out.2) due to friction between the grasping section and the distal end of the probe, abnormal heat was generated.This might have caused the tissue pad to partially peel off.3) some load was applied to the peeling tissue pad, and a portion of the tissue pad was lost.Olympus will continue to monitor field performance for this device.
Event or Problem Description
It was further reported that the issue occurred during a therapeutic procedure during sedation with the device inside the patient.

• Brand Name: THUNDERBEAT OPEN FINE JAW TYPE X
• 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 036-0 357; JA 036-0357
• Manufacturer Contact: todd brill ; 800 west park drive; westborough, MA 01581 ; 5082077661
• MDR Report Key: 21504786
• Report Number: 9614641-2025-00246
• Device Sequence Number: 15459018
• Product Code: GEI
• UDI-Device Identifier: 04953170394584
• UDI-Public: 04953170394584
• Combination Product (Y/N): N
• Initial Reporter Country: KS
• PMA/510(K) Number: K211838
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,User Facility
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 04/28/2025

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-0009OFX
• Device Lot Number: 44K
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 02/17/2025
• Supplement Date Received by Manufacturer: 03/24/2025; 04/28/2025
• Initial Report FDA Received Date: 03/03/2025
• Supplement Report FDA Received Date: 04/01/2025; 04/28/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 04/01/2024
• 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): Yes
• Usage of Device: Unknown
• Patient Sequence Number: 1
• Patient Sex: Unknown