MAUDE Adverse Event Report: AIZU OLYMPUS CO., LTD. BIOPSY VALVE

Model Number	MB-358
Medical Device Problem Code	Device Reprocessing Problem (1091)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the user¿s facility was not properly reprocessing the olympus biopsy value.According to the initial reporter, the subject device was used without having been applied to the endoscope reprocessor.There was no patient harm reported as a result of this event.
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.Based on the results of the investigation, and since the device was not returned for evaluation, a definitive root cause could not be established.Olympus will continue to monitor field performance for this device.
Event or Problem Description
No additional information received from the customer.

• Brand Name: BIOPSY VALVE
• Common Device Name: BIOPSY VALVE
• 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: 23348703
• Report Number: 9610595-2025-26900
• Device Sequence Number: 9544914
• Product Code: FDS
• UDI-Device Identifier: 04953170063947
• UDI-Public: 04953170063947
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K051645
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 11/13/2025

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-358
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 09/24/2025
• Supplement Date Received by Manufacturer: 10/23/2025
• Initial Report FDA Received Date: 10/21/2025
• Supplement Report FDA Received Date: 11/13/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• 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