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It was reported that a nester platinum embolization microcoil elongated.During advancement of the coil into the vessel, the coil became lodged in the catheter.The catheter and coil were removed from the patient, and pulling of the coil was noted.The removed coil appeared extended and uncoiled.At this time, no adverse effects or additional procedures for the patient were reported due to this occurrence.Additional information regarding the event and patient outcome has been requested but is currently unavailable.
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Blank fields on this form indicate the information is unknown, unavailable, or unchanged.Additional information: b5, h6 - annex e, annex f this report includes information known at this time.A follow up report will be submitted should additional relevant information become available.This report is required by the fda under 21 cfr part 803.This report is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement made in it is intended to be an admission that any cook device is defective or malfunctioned; that a death or serious injury occurred; or that any cook device caused or contributed to; or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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Investigation ¿ evaluation.It was reported that when the user attempted to deploy the 'nester platinum embolization microcoil', it became lodged in the catheter, and would not release.While the user was removing the coil, it began to elongate.There were no adverse effects reported to the patient due to this occurrence.Reviews of the complaint history, device history record (dhr), instructions for use (ifu), and quality control procedures, as well as a visual inspection of the returned device, were conducted during the investigation.Cook received one device (coil only) in a used and damaged condition.Upon visual inspection it was noted the coil was stretched and elongated.Additionally, a document-based investigation evaluation was performed.In response to this incident, cook completed a review of the product device master record (dmr) and concluded that sufficient inspection activities are in place to identify this failure mode prior to distribution.Cook also reviewed the dhr for the reported lot and subassembly lot and records one possibly relevant non-conformance for separated coil, but this step is checked 100% during the qc process and all nonconforming devices were scrapped.A database search for complaints on the reported lot found no additional complaints reported from the field.Cook concluded that no nonconforming product from this lot exists in house or in the field.Cook also reviewed product labeling.Instructions for use (ifu) document t_nec_rev0 is packaged with this device.The product ifu states the following in consideration of the reported failure mode: device description.Nester embolization coils (0.035¿ and 0.038¿) and 0.018¿ microcoils are made of platinum with spaced synthetic fibers, and are supplied preloaded in a loading cartridge.They are designed to be delivered to the target vessel using a soft, straight wire guide through a standard angiographic catheter.Warnings.If difficulties occur when deploying the embolization coil, withdraw the wire guide, coil and angiographic catheter simultaneously as a unit.Precautions.Prior to introduction of the embolization coil, flush the angiographic catheter with saline.The product rescommendations section also contains a table of recommendations for catheter and wire guide type and size depending upon the size of the embolization coil.Intructions for use.For.035 and.038 inch coils: 3.Maintaining position of the cartridge, advance the stiff portion of the wire guide into the loading cannula.Push the coil into the first 20 to 30 centimeters of the angiographic catheter.(fig.6) remove the wire guide and loading cartridge.4.With the flexible tip of the wire guide, advance the embolization coil to the tip of the catheter.How supplied.Upon removal from the package, inspect the product to ensure no damage has occurred.The information provided upon review of the dmr, dhr, and ifu suggests that the device was not manufactured out of specification, and that there are no nonconforming devices in house or out in the field.Based on the information provided, inspection of the returned device, and the results of the investigation, cook has concluded that component failure unrelated to manufacturing or design deficiencies contributed to this incident.It is possible that the catheter was not sufficiently flushed prior to coil introduction, but this could not be definitively confirmed.The appropriate personnel have been notified.Cook will continue to monitor for similar complaints.Per the risk assessment no further action is required.This report is required by the fda under 21 cfr part 803 and is based on unconfirmed information submitted by others.Neither the submission of this report nor any statement contained herein is intended to be an admission that any cook device is defective or malfunctioned, that a death or serious injury occurred, nor that any cook device caused, contributed to, or is likely to cause or contribute to a death or serious injury if a malfunction occurred.
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