MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. SINGLE USE ASPIRATION NEEDLE NA-U401SX

Model Number	NA-U401SX-4022
Medical Device Problem Code	Material Twisted/Bent (2981)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/09/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was observed that during the device evaluation, the single use aspiration needle's sheath was buckled.There was no patient involvement.
Additional Manufacturer Narrative
The device was returned to olympus for inspection.A root cause could not be identified.Based on the results of the investigation, it is likely the following led to the malfunction: the buckling of the sheath is thought to have occurred due to bending loads applied to the insertion part when it was removed from the tray or inserted and removed from the endoscope.Should additional relevant information become available, a supplemental report will be submitted.Olympus will continue to monitor field performance for this device.

• Brand Name: SINGLE USE ASPIRATION NEEDLE NA-U401SX
• Common Device Name: SINGLE USE ASPIRATION NEEDLE
• 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 036-0 357; JA 036-0357
• Manufacturer Contact: todd brill ; 800 west park drive; westborough, MA 01581 ; 5082077661
• MDR Report Key: 25018964
• Report Number: 9614641-2026-00447
• Device Sequence Number: 10294960
• Product Code: FCG
• UDI-Device Identifier: 04953170388286
• UDI-Public: 04953170388286
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K160098
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 04/28/2026

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: Health Professional
• Device Model Number: NA-U401SX-4022
• Device Lot Number: 57K09
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 03/11/2026
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 04/01/2026
• Initial Report FDA Received Date: 04/28/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 07/09/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Unknown