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(b)(4).Batch # unk.Attempts have been made to retrieve the device.To date the device has not been returned.If the device or further details are received at a later date a supplemental medwatch will be sent.A manufacturing record evaluation was performed for the finished device lot number, and no non-conformances were identified.Additional information was requested, and the following was received: could you please provide more details for "staple failed"? stapler was placed, deployed as per product instructions.Sharp transection of caecum with stapler in place and then released but no staples had been deployed.Did the device lock out and could not be fired at all? device did not lock out, it could be fired and then cartridge arm appeared to advance as normal.Or was the trigger advanced with no staples deployed? yes were there missing staples from the staple line? no, on firing no staples were deployed.If the device deployed staples, what was the appearance of the staples (b-formation, irregular, legs straight)? when inspected and fired again, staples did deploy, and their appearance was normal b-formation could you please clarify if there were any patient consequences? there were no significant consequences for the patient, minor hemorrhage which was controlled and then the cut end of caecum was sutured, which is our practice with stapled gi procedures.Could you please clarify if was any change in the post-operative care of the patient as a result of the event? no change if information is obtained that was not available for the initial report, a follow-up report will be field as appropriate.
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