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

Model Number BML-V437QR-30

Device Problems Break (1069); Device Dislodged or Dislocated (2923)

Patient Problems Bowel Perforation (2668); No Clinical Signs, Symptoms or Conditions (4582)

Event Type  Injury  

Manufacturer Narrative

The device referenced in this report was not returned to olympus for evaluation.The investigation is ongoing.A supplemental report will be submitted upon completion of the investigation.

Event Description

The olympus employee reported on behalf of the customer that during a therapeutic lithotripsy procedure the guide wire tip of single use mechanical lithotriptor v broke and got stuck in the duodenum.The physician managed to recover the stuck piece of debris.It is unknown if the procedure was completed.Additional information on how the broken pieces were retrieved and patient outcome has been requested but the information has not been received.

Manufacturer Narrative

This supplemental report is being submitted to provide additional information obtained from the customer regarding the reported event.New information added to the following field- b5.

Event Description

Additional information received identified that the bowel perforation was diagnosed with endoscopic observation.The perforation was stitched with hemostatic clips under endoscopic observation.Per physician the problem has been resolved and the patient's prognosis is good.

Event Description

Additional information received that the guidewire tip did not fall off, but the guidewire tip was torn.The distal tip did not follow the guide wire and hit the intestinal tract, causing perforation.Since it did not fall off, it was not retrieved.The guidewire was simply removed from the scope.The procedure was cancelled.

Manufacturer Narrative

This report is being supplemented to provide additional information based on the legal manufacturer's final investigation.A review of the device history record found no deviations that could have caused or contributed to the reported issue.Based on the results of the investigation, the reported event was likely caused by the following: 1) trying to insert the device into the endoscope while using the guide wire.2) the device was excessively angulated while inserting the guide wire into the guide wire tip.3) a load beyond the resistance strength was applied to the guide wire tip.That might have caused the guide wire tip to tear.4) since the subject device was inserted into the patient¿s body without following the guide wire, the guide wire tip hit the intestinal tract and caused perforation.5) while inserting the subject device into the body, the guide wire came off from the torn guide wire tip.6) the guide wire tip hit the intestinal tract and caused perforation.The event can be detected/prevented by following the instructions for use (ifu) which state: ¿when using the guide wire, insert the instrument with its distal tip in parallel with the guide wire while holding the distal tip as shown in figure 4.20.Be careful not to forcibly insert the instrument with a sharp angle between the distal tip and the guide wire as shown in figure 4.21.This may damage the distal tip.¿ olympus will continue to monitor field performance for this device.

• Brand Name: SINGLE USE MECHANICAL LITHOTRIPTOR V
• Type of Device: 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: 17642488
• MDR Text Key: 322181516
• Report Number: 9614641-2023-01252
• Device Sequence Number: 1
• Product Code: LQC
• UDI-Device Identifier: 04953170218415
• UDI-Public: 04953170218415
• Combination Product (y/n): N
• Reporter Country Code: JA
• PMA/PMN Number: CLASS2-EXMPT
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Foreign,Health Professional,User Facility,Company Representative
• Reporter Occupation: Physician
• Type of Report: Initial,Followup,Followup,Followup
• Report Date: 11/16/2023

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
• Device Operator: 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
• Initial Date Manufacturer Received: 07/31/2023
• Initial Date FDA Received: 08/29/2023
• Supplement Dates Manufacturer Received: 09/04/2023; 09/28/2023; 11/08/2023
• Supplement Dates FDA Received: 09/13/2023; 09/28/2023; 11/16/2023
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• 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 Outcome(s): Required Intervention; Other