MAUDE Adverse Event Report: AOMORI OLYMPUS CO., LTD. THUNDERBEAT OPEN FINE JAW; ULTRASONIC SURGICAL DEVICE

Model Number	TB-0009OF
Medical Device Problem Code	Material Separation (1562)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/30/2023
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
The subject device was manufactured on (b)(6) 2022 based on the provided lot information "24k", but due to the lack of supplemental information, the exact manufacturing date cannot be determined.The device was not returned.Follow up in progress to obtain additional information regarding event and device return.The investigation is ongoing.A supplemental will be submitted on completion of investigation or if any additional information is received.
Event or Problem Description
The customer reported to olympus, the teflon pad of the thunderbeat open fine jaw started to come off during a procedure.The procedure was completed with a similar item without any issues.There were no reports of patient harm associated with the event.
Event or Problem Description
The customer provided additional information on 31-may-2023: the customer reported no delay or injury.
Additional Manufacturer Narrative
Additional information has been received from the customer.This supplemental report is being submitted to provide this information in b5 as well as additional information based on the device evaluation and the legal manufacturer's final investigation.Correction to h4, information was inadvertently not included on the initial medwatch.The device was returned and an evaluation was completed for it.During inspection, olympus confirmed the reported event, the tissue pad in the grasping section was worn and partially peeled off.Additionally, the tissue pad was torn; however, this defect is not considered severe enough to cause a potential adverse event.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, it is likely that the probe broke due to contact with a surgical instrument or the non-insulated area of grasping section.Although a definitive root cause cannot be identified, the following step-by-step scenario likely caused the event: 1) during the output activation in seal & cut mode, nothing was grasped in between the grasping section and the distal end of the probe (this includes after tissue resection).Therefore, the tissue pad was worn out.2) due to friction between the grasping section and the distal end of the probe, abnormal heat was generated.This might have caused the tissue pad to partially peel off and torn.The following information is included in the instructions for use (ifu): ¿do not activate output in seal & cut mode while the grasping section is closed without contacting tissue or vessel, or ensuring that tissue is transected.Otherwise, a local increase of the temperature due to a friction between the probe tip and the grasping section may result in various forms of damage in the probe tip and/or the tissue pad, such as premature wear, breakage, deformation, and/or falling off inside the body cavity and/or partial separating.¿ ¿when cutting and vessel sealing is performed in seal & cut mode, apply light tension on the tissue so that users can confirm that they are transected.Also, stop activation immediately after tissue is transected.Otherwise, the grasping section, the tissue pad, or the probe tip may break and fall off, and partial separating of the tissue pad may occur due to a local increase of temperature caused by the friction between tissue pad and the probe tip during activation.¿ olympus will continue to monitor the performance of this device.

• Brand Name: THUNDERBEAT OPEN FINE JAW
• Common Device Name: ULTRASONIC SURGICAL DEVICE
• 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: 16832174
• Report Number: 9614641-2023-00579
• Device Sequence Number: 7131930
• Product Code: GEI
• UDI-Device Identifier: 04953170343346
• UDI-Public: 04953170343346
• Combination Product (Y/N): N
• Initial Reporter State: OH
• Initial Reporter Country: US
• PMA/510(K) Number: K211838
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility
• Initial Reporter Occupation: Nurse
• 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?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: TB-0009OF
• Device Lot Number: 24K
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• 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: 03/31/2023
• Supplement Date Received by Manufacturer: 05/29/2023
• Initial Report FDA Received Date: 04/28/2023
• Supplement Report FDA Received Date: 06/16/2023
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 04/05/2022
• 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