MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. SINGLE USE ELECTROSURGICAL KNIFE KD-650

Model Number	KD-650L
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/06/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
E1:(b)(6).E2/e3: no information available for the occupation of the initial reporter or whether they are a healthcare professional the evaluation of the event is ongoing.A supplemental report will be submitted when the investigation is completed or if additional information becomes available.
Event or Problem Description
It was reported during an endoscopic submucosal dissection (esd) procedure the electrosurgical knife wire was fractured.The procedure was completed with a similar device.There were no reports of patient harm.

• Brand Name: SINGLE USE ELECTROSURGICAL KNIFE KD-650
• Common Device Name: SINGLE USE ELECTROSURGICAL KNIFE
• 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: 21283406
• Report Number: 9614641-2025-00104
• Device Sequence Number: 7908440
• Product Code: KNS
• UDI-Device Identifier: 04953170265761
• UDI-Public: 04953170265761
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• PMA/510(K) Number: K092309
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,User Facility
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 01/31/2025

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: KD-650L
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 01/16/2025
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 01/06/2025
• Initial Report FDA Received Date: 01/31/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/18/2023
• 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
• Patient Sex: Unknown