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According to the reporter, on laparoscopic sigmoid resection, after connecting the reload to the handle, the jaws of the reload could not be opened.The reload was not able to contact the tissue.The surgeon took the device outside of the cavity to try to open however the jaws would still not open.Another handle and reload was used to complete the case.There was no patient injury.
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Evaluation summary: post market vigilance (pmv) led an evaluation of one device.Visual inspection of the loading unit noted that the staple cartridge was fully fired and engaged in interlock.The jaws of the loading unit were clamped and the knife bar assembly was advanced to the extreme distal end.A review of the device history record indicates the product was released meeting all quality release specifications at the time of manufacture.Staple pre-fire and/or inability to open the jaws after clamping may occur under the following conditions.The shipping wedge has been removed or is no longer fully seated in the metal channel prior to loading.The shipping wedge has been removed or is no longer fully seated in the metal channel and the jaws have been manually clamped prior to loading.The shipping wedge has been removed or is no longer fully seated in the metal channel and an attempt has been made to load a loading unit with the instrument firing rod extended.Please note that the yellow shipping wedge must be securely in place during instrument loading.The shipping wedge ensures that the single use loading unit (sulu) engages in the instrument to facilitate clamping and unclamping.Section #2 in the instructions for use, which accompanies each product shipment, cautions the user caution: do not attempt to remove the shipping wedge until the sulu is loaded into the instrument.The root cause of the observed damage was due to the product not being used as intended which caused or contributed to the reported condition.No further actions have been deemed necessary at this time.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 not have 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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