MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. THUNDERBEAT 5 MM, 35 CM, FRONT-ACTUATED GRIP TYPE S; ULTRASONIC SURGICAL DEVICE

Model Number	TB-0535FCS
Medical Device Problem Codes	Break (1069); Detachment of Device or Device Component (2907)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/05/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the thunderbeat 5 mm, 35 cm, front-actuated grip type s exhibited that the tip was broken.The issue occurred during an unspecified therapeutic procedure.There were no reports of patients¿ harm.
Additional Manufacturer Narrative
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 report is being submitted to provide the results of the final investigation.Corrected fields: d4 (serial number), d7a.Updated fields: b5, h6.The device was not returned to olympus for inspection.Based on the results of the investigation, a probable root cause could not be identified.Should additional relevant information become available, a supplemental report will be submitted.Olympus will continue to monitor field performance for this device.
Event or Problem Description
The tip fell off intra-abdominally into the patient during a therapeutic procedure, that was retrieved right away with the aid of forceps.No reports of patient harm and no indication of delay.

• Brand Name: THUNDERBEAT 5 MM, 35 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 036-0 357; JA 036-0357
• Manufacturer Contact: todd brill ; 800 west park drive; westborough, MA 01581 ; 5082077661
• MDR Report Key: 24628625
• Report Number: 9614641-2026-00295
• Device Sequence Number: 8688813
• Product Code: GEI
• UDI-Device Identifier: 04953170383557
• UDI-Public: 04953170383557
• 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): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,User Facility
• Initial Reporter Occupation: Other
• Remedial Action: Recall
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 06/05/2026

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-0535FCS
• Device Lot Number: 52K14
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 03/05/2026
• Supplement Date Received by Manufacturer: 04/06/2026; 05/28/2026
• Initial Report FDA Received Date: 03/18/2026
• Supplement Report FDA Received Date: 05/04/2026; 06/05/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 02/14/2025
• 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: Initial
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: 3003995201-12/08/2025-00
• Patient Sequence Number: 1
• Patient Sex: Unknown