B3 date of event estimated using aware date.Device eval by manufacturer: the ekosonic endovascular device was returned for analysis.Upon initial inspection, the infusion catheter was completely occluded with dried blood, and the coolant and drug ports were unable to be flushed.The infusion catheter was soaked in a warm water bath to loosen the dried blood that was occluding the catheter.After the warm water bath, the coolant lumen was able to be flushed.However, after multiple attempts, the drug port was unable to be flushed.Microscopic visual inspection showed that the drug holes in the infusion catheter were completely occluded with dried blood, which likely led to the inability to flush the drug line.
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