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(b)(4).Batch: r57y6t.Investigation summary: the ec60 device was received for analysis with no visual non-conformances and with an ecr60w cartridge loaded on the device.The reload was received partially fired and with damage on cartridge deck.The device was tested for functionality with a test cartridge reload and achieved its complete 3-stroke firing sequence without any difficulties.The staple line and cut line were complete and the staples were noted to have the proper b-form shape.It is possible that the combination of tissue and/or buttressing material compressed between the device jaws may have been beyond indicated thickness.This may have prevented the top of the knife blade assembly from entering into the anvil.The damage to the cartridge is consistent with the device being clamped over a hard object.To mitigate the potential for staples getting into the cartridge and interfering with the knife path during device firing, prior to reloading the device, rinse the anvil and cartridge jaw in sterile solution and then wipe the anvil and cartridge jaw to clean any formed but unused staples from the device.A manufacturing record evaluation was performed for the finished device batch number, and no non-conformances were identified.
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