(b)(4).Investigation: a review of the complaint history, instructions for us (ifu), manufacturing instructions (mi), quality control (qc), specifications and a visual inspection of the complaint device was conducted for the purpose of this investigation.The wireguide was returned.Visual examination confirms areas in which the blue ptfe coating is missing.Specifications are in place to govern the construction and dimensional requirements along with mi to direct personnel to utilize a magnified eye loop with a light source to inspect the guide for peelings.All qc inspections for tfe peeling is performed 100%.The ifu included with each device states the following precaution: "when using wire guide through a metal cannula/needle, use caution as damage may occur to outer coating." without more specific details of the event, it is not possible to determine root cause of the tfe separation in this case.There is no evidence to suggest the device was not manufactured to specifications.The appropriate internal personnel have been notified to monitor for similar events.
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During a cystoscope procedure, the hiwire & bentson wire guides were introduced initially.Afterwards, it was switched from hiwire to amplatz extra stiff for evaluation against another manufacturer's amplatz super stiff wire guide.The blue coating of the wire guide was observed to be shedding on the tower camera view of the ureteral orifice.The wire was removed.No harm to the patient occurred.No additional procedures or intervention was required due to this occurrence.
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