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(b)(4).Date sent: 6/6/2023 b3: event year only report: 2023 d4 batch #: x94y7l additional information was requested and the following was obtained: "it was reported that the upper jaw of the product was fractured during the surgery.Since the case was continued by opening a spare product, no adverse events occurred in the patient." investigation summary: the product was returned for evaluation.Visual inspection and functional testing were conducted on the returned device.Visual analysis of the returned sample revealed that the device was returned with the upper jaw detached and returned.In addition, cracks in the trigger were noted and the top of the i-blade was fractured and lifted.The device was connected to the generator and it was recognized.Because the jaw was detached not all functional testing could be performed with the generator.A probable cause of this damage could be not allowing thick and fibrous tissues to denature before i-blade advancement.As described in the ifu: do not use excessive force on the closing handle to close the jaws; grasp only as much tissue as will fit between the jaws where the current will pass.Greater amounts of tissue require more closing handle force.Excessive force could damage the device.Please reference the instruction for use for more information: as part of the quality process, all devices are manufactured, inspected, and released to approved specifications.Additional complaint information monitoring for potential safety signals is conducted through complaint trending as part of post-market surveillance.A manufacturing record evaluation was performed for the finished device lot number, and no non-conformance were identified.A manufacturing record evaluation was performed for the finished device batch x94y7l, and no non-conformances were identified.
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