MAUDE Adverse Event Report: AIZU OLYMPUS CO., LTD. MOUTHPIECE

Model Number	MB-142
Medical Device Problem Code	Unintended Movement (3026)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/10/2024
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The investigation is ongoing.A supplemental report will be submitted when the investigation is completed or if additional information becomes available.
Event or Problem Description
It was reported the subject device is not secured and may be spat out by the patient during the examination and bite the device.It's unknown when the issue first occurred.There were no report of patient harm.
Additional Manufacturer Narrative
This report is being supplemented to provide additional information based on the approved final investigation.Based on the results of the investigation, and since the device was not returned for evaluation, the definitive root cause of the reported issue could not be determined.Olympus will continue to monitor field performance for this device.
Event or Problem Description
No additional information provided by the customer.

• Brand Name: MOUTHPIECE
• Common Device Name: MOUTHPIECE
• Manufacturer (Section D): AIZU OLYMPUS CO., LTD.; 3-1-1 niiderakita; aizuwakamatsu-shi, fukushima 965-8 520; JA 965-8520
• Manufacturer (Section G): AIZU OLYMPUS CO., LTD.; 3-1-1 niiderakita; aizuwakamatsu-shi, fukushima 965-8 520; JA 965-8520
• Manufacturer Contact: todd brill ; 800 west park drive; westborough, MA 01581 ; 5082077661
• MDR Report Key: 22420408
• Report Number: 9610595-2025-13262
• Device Sequence Number: 8818038
• Product Code: MNK
• UDI-Device Identifier: 04953170438257
• UDI-Public: 04953170438257
• Combination Product (Y/N): N
• Initial Reporter Country: BR
• 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
• Report Date (Section B): 11/20/2025

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: MB-142
• Device Lot Number: 13A
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 06/17/2025
• Supplement Date Received by Manufacturer: 10/30/2025
• Initial Report FDA Received Date: 07/07/2025
• Supplement Report FDA Received Date: 11/20/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 03/01/2021
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Reuse
• Patient Sequence Number: 1
• Patient Sex: Unknown