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H3 evaluation summary: medtronic conducted an investigation based upon all information received.The device was available for evaluation.Visual inspection noted the device was found to be partially fired and had damage to the cutting edge of the knife blade.Functionally, the clamping mechanism was deformed, the interlock was overridden and the reload was applied to test media.All remaining staples were placed, and test media was transected.The reload interlock was tested and found to function properly.It was reported that the device initially fires but failed to complete the firing cycle and the jaws of the device remain closed on tissue.The reported issues were confirmed.The product analysis noted evidence that the device was not used as intended.It was also reported that the device failed to make an expected sound.The reported issue could not be confirmed.The most likely cause could not be established from the information available.The manufacturing records for each device are thoroughly reviewed prior to release to ensure that it meets all medtronic quality specifications.The instructions included with this device provide the following guidance: failure to completely fire the reload will result in an incomplete cut and staple formation, which may result in poor hemostasis and leakage.Always inspect the tissue thickness and select an appropriate staple size prior to application of the device.Overly thick or thin tissue may result in unacceptable staple formation.When positioning the stapler on the application site, ensure that no obstructions, such as clips, are incorporated into the instrument jaws.Firing over an obstruction may result in incomplete cutting action and improperly formed staples.Medtronic is submitting this report to comply with fda reporting regulations under 21 cfr parts 4 and 803.This report is based upon information obtained by medtronic, which the company may have not been able to fully investigate or verify prior to the date the report was required by the fda.Medtronic has made reasonable efforts to obtain more complete information and has provided as much relevant information as is available to the company as of the submission date of this report.This report does not constitute an admission or a conclusion by fda, medtronic, or its employees that the device, medtronic, or its employee caused or contributed to the event described in the report.In particular, this report does not constitute an admission by anyone that the product described in this report has any ¿defects¿ or has ¿malfunctioned¿.These words are included in the fda 3500a form and are fixed items for selection created by the fda to categorize the type of event solely for the purpose of regulatory reporting.Medtronic objects to the use of these words and others like them because of the lack of definition and the connotations implied by these terms.This statement should be included with any information or report disclosed to the public under the freedom of information act.Any required fields that are unpopulated are blank because the information is currently unknown or unavailable.A good faith effort will be made to obtain the applicable information relevant to the report.If information is provided in the future, a supplemental report will be issued.
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According to the reporter, during the laparoscopic thoracoscopic lobectomy, while on pulmonary parenchyma resection, around the second squeeze, the knife stopped advancing.It was also mentioned that there was no sound of the gear's popping.The jaws of the device has been fixated to the tissue and was able to be removed with the usual device operation of the ultra handle.Another reload was used and the firing could be done without any problems.There was no patient injury.
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