MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. SINGLE USE GUIDE SHEATH KIT

Model Number	K-201
Medical Device Problem Code	Detachment of Device or Device Component (2907)
Health Effect - Clinical Code	Foreign Body In Patient (2687)
Date of Event	04/19/2023
Type of Reportable Event	Serious Injury
Additional 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, there was buckling at about 700 mm from the tip.The fixation marks of the x-ray opaque chip remaining in the tube, it was confirmed the position where the x-ray opaque chip was fixed, but there was no abnormality.There were scratches near the x-ray opaque tip of the guide sheath.The investigation is ongoing.If additional information becomes available, this report will be supplemented accordingly.
Event or Problem Description
The customer reported to olympus, the single use guide sheath kit impermeable marker tip had fallen off into the bronchi during an endobronchial ultrasonography using a guide sheath (ebus-gs) and remained in the patient's body.The therapeutic procedure was completed and the patient's condition was stable.
Additional 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, although the root cause could not be determined, the reported event was likely caused by the following mechanism: when the inductor was inserted, the tip of the inductor was in a bent state.The inductor joint was caught on the x-ray opaque tip.The actuator was moved forward and backward while the joint of the inductor was caught by the x-ray opaque tip, and the guide sheath was pulled in the pulling direction.The x-ray opaque tip was pushed and pulled while being caught by the inductor, and the position of the x-ray opaque tip was displaced.Since the x-ray opaque tip was slanted with respect to the tube, when the inductor was projected, it was caught by the x-ray opaque tip and fell off.The event can be detected/prevented by following the instructions for use (ifu) which state: ¿when inserting a therapeutic instrument or ultrasonic probe into a guide sheath outside the endoscope, inserting a therapeutic instrument or ultrasonic probe into a guide sheath inserted into an endoscope, when moving the probe forward or backward, or when pulling out the treatment instrument or ultrasound probe from the guide sheath, hold the tip of the inductor if it is an inductor.¿ ¿when using a guide sheath, etc., do not bend the endoscope strongly.If the guide sheath and the ultrasound probe or treatment instrument inserted in the guide sheath are difficult to insert or remove from the endoscope due to high resistance, the ultrasound probe or treatment instrument cannot be pulled out from the guide sheath.In that case, return the angle of the endoscope to the point where it can be inserted and withdrawn without difficulty.If it still cannot be pulled out, pull out the guide sheath, ultrasound probe or therapeutic device, and endoscope together from the patient.[the x-ray opaque tip of the guide sheath may become misaligned or fall off.Or other damage to the equipment may occur.]¿ ¿when inserting an ultrasonic probe or therapeutic instrument into a guide sheath inserted into an endoscope, move the guide sheath slowly within the field of view of the endoscope or under x-ray fluoroscopy to ensure that the radiopaque tip inside the guide sheath insert after confirming every time that there is no abnormality such as misalignment or disconnection.Discontinue use if any abnormality is suspected.¿ ¿after the guide sheath is withdrawn from the endoscope, regardless of whether or not the guide sheath is reinserted into the endoscope, the guide sheath may cause buckling or tearing of the tube, displacement of the radiopaque tip, or detachment.Always check that there are no abnormalities such as do not use if any abnormality is suspected.If the x-ray opaque tip has fallen off or inside the body, check to see if it has fallen off inside the body.¿ ¿do not force the instrument into the guide sheath if there is significant resistance.Also, do not insert the biopsy forceps with the cup open or the brush portion of the cytology brush protruding from the tube.It may damage the endoscope and this product.¿ this supplemental report includes a correction to g2 to provide information that was inadvertently not included in the initial medwatch.Also, new information received from the customer has been added to b5.Olympus will continue to monitor field performance for this device.
Event or Problem Description
The following additional information was received: it was reported that the device was inspected prior to use as usual.The patient was under sedation during the procedure; however, the type of anesthesia is unknown.Although there was no patient injury or harm, the device tip was not retrieved from the patient.There was no procedural delay due to this event.

• Brand Name: SINGLE USE GUIDE SHEATH KIT
• Common Device Name: SINGLE USE GUIDE SHEATH
• 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: 16948883
• Report Number: 9614641-2023-00679
• Device Sequence Number: 6555284
• Product Code: EOQ
• UDI-Device Identifier: 04953170245466
• UDI-Public: 04953170245466
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K060243
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,User Facility,Company Representative
• Initial Reporter Occupation: Biomedical Engineer
• Type of Report: Initial,Followup
• Report Date (Section B): 06/16/2023

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
• Operator of Device: Health Professional
• Device Model Number: K-201
• Device Lot Number: 2ZK
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 05/08/2023
• 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: 04/19/2023
• Supplement Date Received by Manufacturer: 05/26/2023
• Initial Report FDA Received Date: 05/17/2023
• Supplement Report FDA Received Date: 06/16/2023
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• 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
• Outcome Attributed to Adverse Event: Other
• Patient Sex: Unknown