Block h6: imdrf device code a15 captures the reportable investigation finding of stent partially deployed.Block h10: the ultraflex esophageal ng distal release covered stent and delivery system were received for analysis.A visual inspection was performed and revealed the stent was partially deployed on the delivery system and that the shaft was bent.The deployment suture was inspected, and no damages or knots were noted.Functional examination was performed, and the stent was released gradually from the delivery system by holding the handle hub in the palm of one hand and grasping and retracting the finger ring with the other hand.No other damages were noted with the stent or delivery system.Although the stent was returned partially deployed on the delivery system; product analysis could not confirm the reported event of stent unable to deploy as the stent was released from the delivery system without resistance during device analysis.The investigation concluded that the damages observed were most likely due to procedural factors such as characteristics of the lesion, handling of the device, and the technique, limited the performance of the device and contributed to stent being unable to deploy.Therefore, review and analysis of all available information indicated the most probable cause adverse event related to procedure.A product labeling review identified that the device was used per the directions for use (dfu)/product label.
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