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

Model Number	KD-VC631Q-07301S
Medical Device Problem Code	Detachment of Device or Device Component (2907)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/27/2024
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The device evaluation is ongoing.Should additional relevant information become available, a supplemental report will be submitted.
Event or Problem Description
During the device evaluation, the preloaded sphincterotome's cutting wire was broken and the broken portion was scorched and melted.There were no reports of patient involvement.
Additional Manufacturer Narrative
This report is being supplemented to provide additional information based on the results of the legal manufacturer's final investigation.Additional information added to the following fields: d8, h3, h4, h6.Corrected fields: d4 (lot).A review of the device history record found no deviations that could have caused or contributed to the reported issue.It has been over twelve years since the subject device was manufactured.Based on the results of the investigation and past investigation, a definitive root cause could not be determined as the device was not returned for evaluation.However, it is likely one of the following mechanisms caused the cutting wire to break:.1.The device was not protruded enough from the endoscope until the rear end of the cutting wire was in the field of view.2.Due to the situation of ¿1¿ description, the cutting wire and the endoscope were being close to each other.3.The output was activated in state of ¿2¿ description.This might have led to an electrical discharge between the cutting wire and the distal end of the endoscope.4.An electrical discharge possibly occurred, and the cutting wire became hot instantly.That might have caused the cutting wire to break.This caused the cutting wire to become hot instantly at the contact point.As a result, the coated portion of the cutting wire burnt.The following information from the instructions for use (ifu) pertains to this event: "¿ since the cutting wire is very thin, it may break off in the following cases: the distance between the papilla of vater and the wire is very short, the output is too high or activated while the wire touches metal parts of the endoscope, or the wire is tightened too strong.When the wire breaks off, its proximal end will be retracted toward the endoscope if the slider is pulled.If the slider is pushed, the wire will be pushed out toward the papilla or move sideways.If the wire breaks off, stop the output immediately and pull the slider completely to retract the broken wire into the tube.Then withdraw the instrument from the papilla.Otherwise, patient injury, such as perforations, bleeding, or lacerations within the biliary duct and/or damage of the endoscope could result.¿be sure that the rear end of the cutting wire is extended from the distal end of the endoscope.In case the cutting wire contacts the forceps elevator, insufficient output or unintended tissue injury may occur.¿ do not activate output while the cutting wire touches the metal parts of the endoscope, or they are being close together.This could burn the tissue and/or damage the endoscope or the instrument." olympus will continue to monitor field performance for this device.

• Brand Name: SINGLE USE PRELOADED 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: 20297044
• Report Number: 9614641-2024-01881
• Device Sequence Number: 15389705
• Product Code: KNS
• UDI-Device Identifier: 04953170399480
• UDI-Public: 04953170399480
• Combination Product (Y/N): N
• Initial Reporter Country: FR
• PMA/510(K) Number: K141991
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 10/07/2024

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: Other
• Device Model Number: KD-VC631Q-07301S
• Device Lot Number: 3XV13
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 07/16/2024
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/12/2024
• Supplement Date Received by Manufacturer: 10/07/2024
• Initial Report FDA Received Date: 09/24/2024
• Supplement Report FDA Received Date: 10/07/2024
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 10/13/2023
• 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