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H3: product analysis of nv-6-20-helix, lotno:226101609 found the concerto pusher broken at the break indicator with the release wire also broken.The proximal segment was not returned for analysis.The concerto pusher was found kinked/bent throughout the entire length of the pusher.The coin was found fully retracted out of the lumen stop.The shield coil was found undamaged, and the implant coil was found already detached and not returned for analysis.The concerto coil could not be used for resistance testing due to the damaged condition and as the implant was already detached.Based on the device analysis and reported information, the customer¿s report of ¿coil resistance/stuck in catheter¿ could not be confirmed.The pusher was found severely kinked throughout the entire length.Kinking typically is indicative of resistance, however, as the kinking was found throughout the entire length of the device and due to the severity of the kinking, it is possible the kinking occurred during handling and shipping back to medtronic.Possible causes for coil resistance in catheter are, but not limited to, lack of hydration before procedure, user does not maintain continuous flush, damaged micro catheter, or tortuous anatomy.The pusher was found broken at the break indicator and the release wire was retracted, detaching the implant coil as expected by the detachment subassemblies.The customer did not report any detachment attempts.As the unknown terumo 2.7f micro catheter used in the event was not returned for analysis, any contribution of the micro catheter towards the resistance could not be determined.As the model was not reported, compatibility could not be assessed.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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