(b)(4).The manufacturing documentation was reviewed for the device used in this case and all quality and manufacturing release criteria was met.To date, no other complaints were reported for this same failure within this lot.The device was microscopically inspected and a small scrape was observed near the distal fillet bond.The continuity of the device was tested and initially passed.However, after exposure to fluid in a test fixture, the test indicated a shorted supply lead.An image test was performed.The catheter returned a catheter fault error message.The investigation indicated that the damage at the fillet bond created a gap for fluid to ingress into the device and cause an electrical short between the power and ground microcables.The damage likely occurred when the user attempted to advance the catheter against resistance, causing fluid ingress to damage the electrical components and cause the observed lost image failure.The product ifu warns not to advance the catheter against significant resistance or attempt to force it through tight lumens.Volcano will continue to monitor complaints for this failure mode via our standard complaint review process and data trending activities.
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