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

Model Number KD-V411M-0725

Device Problem Break (1069)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 09/07/2022

Event Type  malfunction  

Manufacturer Narrative

The device was returned to olympus for evaluation.Upon inspection testing of the returned device, the user's request was confirmed.It was discovered, the knife wire coating was torn and the broken part was burnt and melted.It was confirmed, there were no problems with the length of the knife wire and wire coating, and there were no other defects found.The investigation is ongoing.If additional information becomes available, this report will be supplemented accordingly.

Event Description

An olympus representative reported to olympus, on behalf of the customer, the knife wire broke when energized (output setting: vio300d/endocuti 3-2-3) on the single use 3-lumen sphincterotome v during an endoscopic sphincterotomy (est).The procedure was completed with a similar device.There were no reports of patient harm associated with this event.

Manufacturer Narrative

This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.Based on the result of confirmation of the device, and the result of past similar complaint investigation, a likely mechanism causing the cutting wire breakage might be the following.However, the exact cause could not be determined.1.The cutting wire where the wire coating was torn came into contact with the distal end of the endoscope when the forceps elevator was raised.2.Under circumstances described above 1, an electric conduction was activated.This caused the cutting wire to become hot instantly at the contact point.As a result, the cutting wire broke.Also, it is confirmed that the tear of the coated portion of the cutting wire can replicate by the following mechanism: 1.Raise the forceps elevator of the endoscope.2.Once the cutting wire deflects, the coated portion of the wire comes into contact with the metal part of the distal end of the endoscope.3.The cutting wire was moved back and forth under the circumstances described above 2, causing the coated portion to tear.It is possible that the slider was slightly pushed hard.This possibly caused the cutting wire to deflect.This instruction manual contains the following information which may prevent the 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 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 3-LUMEN SPHINCTEROTOME V
• Type of Device: 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 Contact: masaharu hirose ; 2-248-1 okkonoki; kuroishi-shi, aomori 036-0-357 ; JA 036-0357 ; 426422891
• MDR Report Key: 15542505
• MDR Text Key: 306504791
• Report Number: 9614641-2022-00414
• Device Sequence Number: 1
• Product Code: KNS
• UDI-Device Identifier: 04953170184031
• UDI-Public: 04953170184031
• Combination Product (y/n): N
• Reporter Country Code: JA
• PMA/PMN Number: K950166
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Foreign,User Facility
• Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date: 10/24/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 10/05/2022
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: KD-V411M-0725
• Device Lot Number: 24K
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 09/12/2022
• Was the Report Sent to FDA?: No
• Date Manufacturer Received: 09/26/2022
• Was Device Evaluated by Manufacturer?: Yes
• Date Device Manufactured: 04/12/2022
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Age: 80 YR
• Patient Sex: Male
• Patient Ethnicity: Non Hispanic
• Patient Race: Asian