Device evaluation: the echo-19 device of lot number c1699226 involved in this complaint was returned for evaluation, without the original packaging.With the information provided, a physical examination and document based investigation was conducted.Lab evaluation: the device involved in the complaint was evaluated in the laboratory on the 26th nov 2020.In summary the following results were observed in the lab evaluation: sheath detached below sheath extender.Needle break below sheath extender.Sheath extender able to advance and retract without issue.Needle handle able to advance and retract without issue.Stylet removed.No issue observed.Needle removed.Proximal break observed.Prior to distribution all echo-19 devices are subjected to a visual inspection and functional checks to ensure device integrity.These inspections and functional checks are outlined in internal procedures in place at cirl.A review of the manufacturing records for echo-19 device of lot number c1699226 did not reveal any discrepancies that could have contributed to this issue.There is no evidence to suggest that this issue affects the entire lot #c1699226; upon review of complaints this failure mode has not occurred previously with this lot #c1699226.The instructions for use ifu0101-1 which accompanies this device instructs the user to "visually inspect with particular attention to kinks, bends and breaks.If abnormality is detected that would prohibit proper working condition, do not use." there is no evidence to suggest that the customer did not follow the instructions for use.A definitive root cause could not be determined as the circumstances of use cannot be replicated in the laboratory.A possible root cause could be attributed to difficult target site requiring the endoscope in a flexed or twisted position during the procedure as indicated in the additional information resulting in the needle and sheath break.Additionally it is also possible that excessive force may have been applied on attachment to scope.A capa has been initiated to document and track the actions taken to investigate and to address kinking or breaking of the sheath at the sheath/sheath extender junction.According to the initial reporter, the patient did not experience any adverse effects due to this occurrence.Complaint is confirmed as the failure was verified in the laboratory.Complaints of this nature will continue to be monitored for potential emerging trends.
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