(b)(4).Batch number = > p57941.Investigation summary = > the analysis found that one pse45a device was returned with no apparent damage and with the manual override door out of position; the override lever was up which denotes that the knife was manually returned to home position.It should be noted after the manual override system is used the instrument is disabled and cannot be used for any subsequent firings.A gst45t cartridge reload was received partially fired 1/10 and with 1 driver missing making the reload non-functional.The bailout system was reset and then, it was tested for functionality in the straight position with a test cartridge reload and achieved its complete 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 while loading the reload, the cartridge was pushed farther back than the cartridge alignment stop windows resulting in the knife pushing the one piece sled forward and locking the cartridge.Although no conclusion could be reached on what caused the drivers to be out of position.In addition it should be noted that as part of our quality process, each device is visually inspected and functionally tested during manufacturing to ensure that the device meets the required specifications prior to shipment.The batch history record was reviewed and no defects, ncr¿s or protocols related to the complaint, were found during the manufacturing process.Additional information requested and received: is the current patient status known? - unknown.Was there any patient consequence or change in the post-operative care of the patient as a result of the event? - unknown.
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