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(b)(4).Batch # unknown.Product was not returned.Based on the information available, it has been determined that no corrective and preventive action is proposed.This complaint will be accounted for and monitored via post market surveillance activities.If additional information is made available, the investigation will be updated as applicable.A manufacturing record evaluation was performed for the finished device lot number, and no non-conformance were identified. additional information was requested, and the following was received: could you please provide more details for "did not fire properly"? the staplers were not formed and the tissues was partially cut.What degree of hemorrhoids did the patient have? 3rd degree.What confirmation was received that the device was fully fired? it was heard and cis was done for the case.Where within the gap setting scale was the orange indicator prior to firing? it was in the green firing range.Did the device cut? yes it did cut but partially only.If the device cut was the cut line fully circumferential around the target tissue? no.Did the device staple? yes.Was the staple line complete? yes.Were there any staples missing from the staple line? no.What was the appearance of the deployed staples (b-formation, irregular, straight legs)? unknown.How many counter-clockwise revolutions were used to open the device? 4 half rotation were done.Was the safety reset before removal attempted? yes.How many counter-clockwise revolutions were used to open the device? 4 half revolution.How was it confirmed that the anvil was free from the tissue prior to removing? moving it in anti clockwise and doing the fish tail movement.After firing was the adjusting knob turned ½ to ¾ revolutions? yes 4 1/2 revolution.Was the device rotated 90 degrees in both directions to ensure the anvil was free from the tissue? yes.Who fired the device? the surgeon.Who removed the device? the surgeon.What was the users experience with the device? not satisfied as it did not cut properly and he had to manually do the same and then tie.How was the procedure completed? manually cutting and tie.Was the safety reset prior to removal? yes it was reset prior to the removal.Could you please clarify if there was any tissue damage? na.If yes, please provide more details.Could you please clarify if there were any patient consequences? unknown could you please clarify if was any change in the post-operative care of the patient as a result of the event? unknown.Device status.- not available, it as discarded.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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