Complaint conclusion: as reported, a 6f/7f mynxgrip vascular closure device (vcd) was defective and failed.The device did not deploy correctly.It just seemed to split when the user pushed it down and then up.It just seemed defective.There was no reported patient injury.A non-sterile ¿mynxgrip vascular closure device 6f/7f¿ involved in the reported complaint was returned for investigation.Visual inspection of the received device showed that the shuttle was engaged to the black handle.The syringe was received connected to the device, and the stopcock was observed opened.The procedural sheath was not received for evaluation.The advancer tube was observed to have remained in the shuttle cartridge tubing as received.It was noted that the sealant was exposed adhering to the catheter shaft.In addition, the balloon was noted fully deflated.The device was inspected for damages that may have contributed to the reported event, and no visual damages or anomalies were observed.Dimensional analysis was performed to verify the advancer tube¿s length and distance between the proximal and distal tamp locks, and the measurements were noted to be within specification.Per functional analysis, a simulated deployment test was performed to ensure functionality of the returned device.The sealant was found adhered to the catheter shaft and it was removed.After removal, the shuttle was able to be advanced without issue, and the advancer tube was found properly engaged to the proximal tamp lock during the device failure investigation.The returned device performed as intended per the mynxgrip instructions for use (ifu).Per microscopic analysis, visual inspection at high magnification showed that the tamp locks were inspected for damages that may have prevented the advancer tube from engaging to the proximal tamp lock during the procedure, and no damages or anomalies were observed.In addition, it was noted that the sealant was exposed, adhering to the catheter shaft.The reported events of ¿sealant-failure to deploy¿ and ¿sealant-sealant stuck to device components¿ were confirmed through analysis of the returned device since the sealant was found adhered to the to the catheter shaft.The exact cause of the issue experienced by the customer could not be conclusively determined during analysis.Based on the limited information available for review, it is difficult to determine what factors may have contributed to the reported incident of the sealant failing to deploy/becoming stuck to the device, especially since there were no damages or anomalies noted to the device.However, procedural/handling factors are possible, such as incomplete engagement of the advancer tube or the sealant prematurely hydrating and adhering to the device components which created resistance and obstructed the device path during the procedure.According to the mynxgrip instructions for use (ifu), which is not intended as a mitigation, ¿while pulling lightly on the device handle (to ensure the balloon is abutting the arteriotomy or venotomy), open the procedural sheath stopcock and confirm temporary hemostasis.Detach shuttle and advance in a continuous motion until a definitive stop is felt.Immediately grasp the procedural sheath and withdraw it from the tissue tract.Continue retracting until the shuttle locks on the handle.¿ it should be noted that if the shuttle is not advanced until the advancer tube is engaged to the proximal tamp lock (definitive stop), this will cause the advancer tube and sealant to follow the shuttle cartridge back out of the tissue tract during the retraction step, resulting in the device failing to deploy.Neither the product analysis, nor the information available for review, suggest that the reported failure experienced could be related to the design or manufacturing process of the unit.Therefore, no corrective/preventive action will be taken at this time.
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