MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. SINGLE USE SPHINCTEROTOME V (DISTAL WIREGUIDED); SINGLE USE PRELOADED SPHINCTEROTOME

Model Number	KD-VC412Q-0215
Medical Device Problem Code	Break (1069)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/25/2024
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The evaluation of the event is ongoing.Should additional relevant information become available, a supplemental report will be submitted.
Event or Problem Description
It was reported that the wire of the single use preloaded sphincterotome broke when electricity was applied.It did not fall off.The issue occurred during a therapeutic endoscopic sphincterotomy (est) procedure.The procedure was completed with a similar device.There were no reports of patient harm.
Additional Manufacturer Narrative
This report is being supplemented to provide additional information based on the approved final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.It has been over 1 year since the subject device was manufactured.Based on the device evaluation, and past investigation results, the likely cause of the cutting wire breakage is as follows: the cutting wire's coating was damaged, leading to contact with the endoscope's distal end when the forceps elevator was raised.This contact triggered electric conduction, heating the wire at the contact point and causing it to break.The possible cause of the coating damage could be: the slider might have been slightly displaced, causing the wire to deflect and rub against a metal part of the endoscope.However, a definitive root cause of the reported issue could not be determined.This instruction manual contains the following information (drawing no.Gk9016 revision no.06): "since the cutting wire is very thin, it may break off in the following cases: the distance between the papilla of vater and the cutting wire is very short, the output is too high or activated while the cutting wire touches metal parts of the endoscope, or the cutting wire is tightened too strong.When the cutting wire breaks off, its proximal end will be retracted toward the endoscope if the slider is pulled.If the slider is pushed, the cutting wire will be pushed out toward the papilla or move sideways.If the cutting wire breaks off, stop the output immediately and pull the slider completely to retract the broken cutting wire into the tube.Then withdraw the sphincterotome from the papilla.Otherwise, patient injury, such as perforations, bleeding, or lacerations within the biliary duct, and/or damage of the endoscope could result.When inserting the instrument into the endoscope, be sure that the cutting wire is parallel to the tube.Otherwise, the metal part of the forceps elevator may contact the cutting wire and peel off the coating material.Do not activate output while tissue is in contact with the torn or damaged coated portion of the distal end.If output is activated while tissue is contacting the torn or damaged coated portion due to insertion into or withdrawal from an endoscope, leakage current, decreased output, and/or thermal injury could result.If you feel the cutting is blunt, withdraw the device from the scope to examine if there is any peel off and tear at the coating portion." olympus will continue to monitor field performance for this device.

• Brand Name: SINGLE USE SPHINCTEROTOME V (DISTAL WIREGUIDED)
• Common Device Name: SINGLE USE PRELOADED 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
• Manufacturer Contact: todd brill ; 800 west park drive; westborough, MA 01581 ; 5082077661
• MDR Report Key: 19700848
• Report Number: 9614641-2024-01399
• Device Sequence Number: 7720442
• Product Code: KNS
• UDI-Device Identifier: 04953170399336
• UDI-Public: 04953170399336
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K160241
• 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,Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 08/05/2024

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-VC412Q-0215
• Device Lot Number: 36V
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/26/2024
• Supplement Date Received by Manufacturer: 07/30/2024
• Initial Report FDA Received Date: 07/09/2024
• Supplement Report FDA Received Date: 08/05/2024
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 06/20/2023
• 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