MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. SINGLE USE MECHANICAL LITHOTRIPTOR V

Model Number	BML-V437QR-30
Medical Device Problem Code	Difficult to Remove (1528)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/16/2023
Type of Reportable Event	Serious Injury
Event or Problem Description
The olympus representative reported on behalf of the customer that during a therapeutic endoscopic bile duct stone removal with a single use mechanical lithotriptor v, the stone was more firmly incarcerated than expected, and the wire was cut near the control unit and was sticking out of the patient¿s mouth.The procedure was aborted since the stone could not be removed, and a surgical operation was performed two days later and the stone was successfully removed.The device was inspected before use and appeared to be normal.There was no impact on the patient or procedure and no health hazard reported.
Additional Manufacturer Narrative
The device is not being returned for evaluation as it was disposed of.The investigation is ongoing.A supplemental report will be submitted upon completion of the investigation or when additional information becomes available.
Additional Manufacturer Narrative
This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.The device history record was unable to be reviewed for this device since the serial number was not provided.However, olympus only releases products to market that meet all manufacturing specifications and final product release criteria.Based on the results of the investigation and similar investigation results in the past, a likely mechanism causing the reported event might be the following: 1.Due to various factors such as hardness of the calculus, a force beyond the strength resistance was applied to the device during the lithotripsy.2.Due to the description above ¿1¿ description, the operating wire broke near the handle.However, the subject device was not returned and the root cause of the phenomenon could not be determined.The event can be prevented by following the instructions for use which state: ·do not use this instrument for a calculus that is assumed impossible to be crushed by a lithotriptor.The pipe or the basket wire may break and part of this instrument may remain in the body.·use this instrument by having the settings to switch to open surgery and the hospitalization plan ready in case the calculus cannot be crushed by lithotriptor bml-110a-1.·a lithotriptor cannot always crush all calculi captured in the basket.Operation of this instrument is based on the assumption that open surgery is possible as an emergency measure.If the calculus is too hard, it is possible that the damages shown in chapter 5, ¿emergency treatment¿ may occur.Use the lithotriptor by considering that it may lead to damaging the instrument and that open surgery may have to take place.·this instrument will deform and/or deteriorate by performing lithotripsy.When lithotripsy is repeated, it will deform and/or deteriorate furthermore.By such deformation and/or deterioration, calculus may not be crushed and/or the instrument with calculus engaged may not be removed from the body.If lithotripsy is required to be repeated in a single case, make sure to check each time that no abnormality is found in action and/or appearance (e.G.Basket wire cut or worn, tube sheath bent, notable coil sheath bent or gap etc.).Stop use when any abnormality is detected.·during lithotripsy, keep the portion from the coil sheath to the bml handle straight in line with the scope¿s biopsy valve, as much as possible.If not straight, the coil sheath may bend, calculus may not be crushed, and/or the instrument with calculus engaged may not be removed from the body.·do not rotate the bml handle knob abruptly.This instrument may break, and/or calculus may not be crushed.Also, the instrument with calculus engaged may not be removed from the body.Olympus will continue to monitor field performance for this device.

• Brand Name: SINGLE USE MECHANICAL LITHOTRIPTOR V
• Common Device Name: SINGLE USE MECHANICAL LITHOTRIPTOR
• 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: 17311315
• Report Number: 9614641-2023-00977
• Device Sequence Number: 7157891
• Product Code: LQC
• UDI-Device Identifier: 04953170218415
• UDI-Public: 04953170218415
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: CLASS2-EXMPT
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Health Professional,User Facility
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 09/18/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: BML-V437QR-30
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/16/2023
• Supplement Date Received by Manufacturer: 08/31/2023
• Initial Report FDA Received Date: 07/12/2023
• Supplement Report FDA Received Date: 09/18/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• 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
• Concomitant Medical Products and Therapy/Usage Dates: CV-290, CLV-290, JF-260V.
• Outcome Attributed to Adverse Event: Required Intervention; Other
• Patient Age: 77 YR
• Patient Sex: Unknown