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Product complaint # (b)(4).The purpose of this mdr submission is to report the findings of the device investigation.The embolic coil was kinked, meeting regulatory reporting criteria.Information regarding patient weight, height, medical history, race, and ethnicity was not reported.Procode: krd/hcg.Initial reporter phone: (b)(6).Missing information from this report is identified as blank; this information was not provided in the reported event or available at the time of report submission.A supplemental report will be submitted if new facts arise which materially alter information submitted in a previous mdr report.Complaint conclusion: as reported by the field, during an emergent hemostasis, a 1mm x 4cm galaxy g3 coil (glm910040, 30537007) was being used, however, it was removed from the patient¿s body because it became stuck in the unspecified microcatheter (mc).There was no patient injury reported.A continuous flush was done.Additional information received indicated that it was not necessary to remove the microcatheter.No excessive force was applied to the device.A non-sterile galaxy g3 mini 1mm x 4cm was received for analysis, the device was inspected the core wire was kinked and protruding from the introducer.No other damages were observed during the visual inspection.The device was inspected under a microscope; the embolic coil was noted to be kinked.The kinked portion of the core wire was observed twisted near the marker band.The functional test could not be performed due to the core wire was found protruded from the introducer.A manufacturing record evaluation was performed for the finished device [30537007] number, and no non-conformances related to the reported complaint condition were identified.The product was returned to cerenovus for evaluation.The visual inspection revealed that the core wire was kinked and protruding from the introducer.The device was inspected under microscopic magnification, and the embolic coil was noted to be kinked.The kinked portion of the core wire was observed twisted near the marker band.The functional test could not be performed due to the returned condition of the device.The damage noted on the embolic coil inside the introducer, and the kinked core wire prevented the functional test to be performed as the embolic coil could not be advanced out or retrieved from the introducer.However, these damages might have appeared during the advancement of the embolic coil into the introducer or during the introduction/ advancement to the microcatheter, therefore, the customer complaint was confirmed.Coil kinking is a known potential issue associated with the use of this device.The instructions for use (ifu) provides proper handling instructions for the device to prevent such issue from occurring.A manufacturing record evaluation was performed, and no non-conformances related to the reported complaint condition were identified.It should be noted that product failure could be caused by multiple factors.The instructions for use (ifu) contains the following recommendations: do not fasten the rhv valve too tightly around the introducer sheath since excessive pressure may cause damage to the introducer sheath and/or the micro coil as it is advanced into the infusion microcatheter.Additionally, if the introducer tip and microcatheter hub are misaligned, damage may occur to the micro-coil as it passes through this transition.If unusual friction is noticed during advancement or retraction of the micro coil system, verify the locking mechanism or clear tab is unlocked and pulled out from the re-sheathing tool approximately 1 in (2-3 cm).If unusual friction is noticed during advancement or retraction of the micro coil system through the introducer, open the rhv main valve, and partially withdraw the distal end of the introducer to expose its tip within the rhv.Tighten the rhv main valve and flush the y-connector of the rhv with sterile saline and verify that fluid exits the slit in the clear portion of the introducer.After flushing, reinsert the introducer into the infusion catheter hub as described in the ¿microcoil placement¿ section above.If unusual friction is still noticed during advancement or retraction of the microcoil system, verify flush lines are open and properly pressurized.Then slowly withdraw the entire microcoil system and examine for damage.Replace it with a new microcoil system.If friction still exists, withdraw and examine the delivery catheter system.Assignment of root cause for the events remains speculative and inconclusive, based on the limited information provided and the evidence presented by the returned device; however, it is possible that clinical and procedural factors, including device manipulation and device interaction, may have contributed to the reported failures and damages on the returned system.As part of the cerenovus quality process, all devices are manufactured, inspected, and released to approved specifications.As part of the post market surveillance program, information from this complaint is trended to identify statistical signals for consideration of further correction action.Since there was no evidence to suggest the event was related to a manufacturing or design issue, no corrective actions will be taken at this time.
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As reported by the field, during an emergent hemostasis, a 1mm x 4cm galaxy g3 coil (glm910040, 30537007) was being used, however, it was removed from the patient¿s body because it became stuck in the unspecified microcatheter (mc).There was no patient injury reported.A continuous flush was done.Additional information received indicated that it was not necessary to remove the microcatheter.No excessive force was applied to the device.Based on the device analysis of the device received the embolic coil was kinked.
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