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Note: incorrect wireguide size used lab evaluation (b)(6) 2022.Visual inspection: pushing catheter, guiding catheter , stent and radiopaque introducer all returned.Slight decolourisation noted on pigtail curls of stent.( appears to have been used ) no other defects noted.Functional inspection: stent deploys as expected.0.035 inch wire guide passes through freely.
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Device evaluation: 1 x zss-10-12-rb of lot number cf1710596 was returned to cirl open in its original packaging.Lab evaluation: the device involved in the complaint was evaluated in the laboratory on (b)(6) 2022.Pushing catheter, guiding catheter , stent and radiopaque introducer all returned.Slight decolourisation noted on pigtail curls of stent.( appears to have been used ).No other defects noted.The stent deploys as expected.0.035 inch wire guide passes through freely.Image review: n/a.Documents review including ifu review: prior to distribution all (b)(4) devices are subjected to a visual inspection and functional checks to ensure device integrity.A review of the manufacturing records for the (b)(4) device confirms the failure mode has not previously occurred with the current lot number.Based on the information available to date, there is no evidence to suggest that there are any manufacturing issues associated with lot number cf1710596.It should be noted that according to the instructions for use (ifu0100-1) that the potential complications associated with ercp "include, but are not limited to: pancreatitis, cholangitis, aspiration, perforation, hemorrhage, infection, sepsis, allergic reaction to contrast or medication, hypotension, respiratory depression or arrest, cardiac arrhythmia or arrest.Additional complications associated with biliary stent placement include but are not limited to: trauma to the biliary tract or duodenum, obstruction of pancreatic duct, stent migration." there is no evidence to suggest that the user did not follow the instructions for use.Root cause review: a definitive root cause could not be determined as the circumstances of use could not be replicated in the laboratory.However, as per the instructions for use, migration is a known complication associated with the device.The user error of the incorrect sized wireguide used is secondary to the migration that occurred.Summary: complaint is confirmed based on customer and/or rep testimony.According to the information reported, the patient did not experience any adverse effects due to the migration.Complaints of this nature will continue to be monitored for potential emerging trends.
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