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Block b3: approximated based on the date the manufacturer became aware of the event.Block h6: imdrf device code a0401 captures the reportable investigation findings of guide catheter break.Block h11: a flexima biliary stent was received for analysis.Visual and microscopic examination of the returned device found that the guide catheter was kinked, stretched and detached; the push catheter suture hole was torn, and the stent had a foreign material at distal section (possibly a tissue residue of the procedure).No other problems were noted with the stent and delivery system.Product analysis confirmed the reported events of stent difficult to advance, catheter guide kinked, and stent failure to deploy.Taking all available information into consideration, the investigation concluded that the reported events and observed damages were likely due to factors encountered during the procedure such as the physician's technique, and the force applied to the guide catheter cap, which limited the performance of the device and contributed to the reported events and observed problems.Therefore, the most probable cause is adverse event related to procedure.
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