(b)(4).Batch #: u93z6p.Investigation summary: the analysis results found that the er420 device was returned with no apparent damage, with a clip in the jaws.Three open clips and three conforming clips were also returned inside of a plastic bag.The device was tested for functionality and during the analysis the device was cycled and it fed, retained, and formed the remaining eleven clips as intended.The event described could not be confirmed as the device performed without any difficulties noted.Although there is no direct evidence of use error, the instructions for use do contain the following: "caution: fully squeeze the trigger and then release to load the first clip into the instrument jaws.Failure to completely squeeze the trigger can result in clip mis-loading.Position the jaws with the clip completely around the vessel to be ligated.Fully squeeze the trigger on each firing.Do so by pulling back on the trigger even after a sharp ¿click¿ is heard and until you touch plastic trigger to plastic handle (plastic to plastic).Fully release the trigger after firing.A second ¿click¿ should be heard indicating the instrument is ready for the next firing.The next clip is automatically advanced as the trigger is released.Inspect the instrument jaw tips after each use to ensure a new clip is present before the next firing." it should be noted that as part of our quality process all devices are manufactured, inspected, and released to approved specifications.Additional complaint information monitoring for potential safety signals will be conducted through complaint trending as part of post market surveillance.A manufacturing record evaluation was performed for the finished device batch number, and no non-conformances were identified.
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