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Device evaluation summary: visual inspection shows a split in the tubing.Reason for return was confirmed.Conclusion: rty (rolled throughput yield) records from (b)(6) 2020 to (b)(6) 2020 were reviewed to confirm if a similar defect like kinked or damaged tubing had been reported by production personnel on rty system, 83 occurrences from kinked or damaged tubing were captured in the rty system.Additionally, ncmr (no conforming material report) records from (b)(6) 2020 to (b)(6) 2020 were reviewed in order to confirm if a similar failure mode had been detected however, no ncmr¿s were found in the database related to the mentioned defect.Based on the investigation results can be concluded that the following root causes lead to the origination of the failure mode (kinked or damaged tubing): due to the direct contact of the tubing with hard components.Defect originated during the assembly process.Defective tube from supplier process.Progressive inspection was not performed according to mi126.Non-sterile sample was not compared with the specification according to procedure.Due to the direct contact of the tubing with hard components and defect originated during the assembly process.A sample of the subassembly of the custom pack was built in order to detecting opportunities in the layering of the affected line.During the manufacturing of the sample, no significant risk (contact of hard components with the tube of lower resistance) that could contribute to the origination of the defect were detected.A visual inspection was performed in order to confirm if there is a possibility of risk with the current layering of the lines.After the inspection no risks were detected therefore this potential root cause was discarded.All pictures from the work order were reviewed thru cia system in order to confirm if the raw material (tube) presented any kink or damage previous to the assembly, however no damage in the tubes from the affected lines were found during the inspection.Defective tube from supplier process during the investigation, it was detected that the affected component was the tube therefore it was decided to inspect a roll of an available lot from the tubing cut area.No physical damage was found after the inspection of the roll.Progressive inspection was not performed according to a non-sterile sample was not compared with the specification according to procedure.Rty, ncmr and general scrap database from cps were reviewed in order to confirm or review if the custom pack suffers an issue, however no anomalies were found.There were no reworks for the mentioned custom pack, therefore, this potential root cause is being discarded.Progressive inspection is performed by a certified assembler.(inspection performed in the band).Per dhr review it was confirmed that a 100% inspection of assembly was performed according to procedure.Per dhr review it was confirmed that a 100% inspection of assembly was performed according to procedure.We will continue to monitor for future occurrences and take actions as appropriate if any trends are identified.No actions could be established as result of this investigation since the root-cause the failure mode reported was not found during the investigation of the customer complaint.Review of the complaint file indicates enough information was provided for completion of this investigation.This regulatory report is being submitted as part of a retrospective review and remediation per (b)(4) as part of a capa action.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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