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(b)(4).Batch # n54h01.Device evaluation: the analysis results found that the 6tb45 device was received with the firing mechanism damaged and with 6r45b cartridge loaded in the device.The reload was fully fired and with the lockout spring normal.No functional test could be performed due to the condition of the device; however, the device closed and opened properly during testing.The device was disassembled to verify the condition of the internal components and the firing trigger teeth were found broken.No conclusion could be reached on what caused the firing mechanism to fail, it is possible that the device was attempted to fire on thicker tissue than indicated or attempted to fire through a locked reload in previous firings causing an increase of the internal forces resulting in the component yielding.It should be noted that a 100% inspections takes place during manufacturing to ensure the device meets the require specifications; in addition, a sample of the batch is inspected at fgqa.The batch history record was reviewed and no defects, ncr¿s or protocols related to the complaint, were found during the manufacturing process.
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