MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. SINGLE USE 3-LUMEN SPHINCTEROTOME V; SINGLE USE 2-LUMEN SPHINCTEROTOME

Model Number	KD-V431M-0720
Medical Device Problem Code	Failure to Fire (2610)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	07/14/2025
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported during a therapeutic endoscopic retrograde cholangiopancreatography (ercp) procedure, the subject device would not deploy in the correct orientation from the scope.The procedure was completed using a competitor device.There were no report of patient 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.The device was not returned to olympus for inspection; therefore, the reported failure was not confirmed.Based on the results of the investigation, a definitive root cause of the reported issue could not be determined.Therefore, the most probable cause is cause not established.Olympus will continue to monitor field performance for this device.Should additional relevant information become available, a supplemental report will be submitted.
Event or Problem Description
No additional information received from customer.

• Brand Name: SINGLE USE 3-LUMEN SPHINCTEROTOME V
• Common Device Name: SINGLE USE 2-LUMEN SPHINCTEROTOME
• 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: 22747622
• Report Number: 9614641-2025-01351
• Device Sequence Number: 12531063
• Product Code: KNS
• UDI-Device Identifier: 04953170380631
• UDI-Public: 04953170380631
• Combination Product (Y/N): N
• Initial Reporter State: TX
• Initial Reporter Country: US
• PMA/510(K) Number: K950166
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 02/03/2026

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: KD-V431M-0720
• 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: 07/15/2025
• Supplement Date Received by Manufacturer: 01/09/2026
• Initial Report FDA Received Date: 08/08/2025
• Supplement Report FDA Received Date: 02/03/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• 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
• Patient Sequence Number: 1
• Patient Sex: Unknown