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The device was returned to conmed for evaluation with used original packaging.Catalog and lot numbers were verified.Visual inspection did not identify any obvious damage.Testing of conductivity was conducted on both the front and back pad using a multimeter, this testing concluded the pad set had an open circuit on one of the pads.The manufacturer, katecho inc., provided lot history record for our review.The review of this document found no nonconformances pertaining to the failure mode observed in the complaint.The product test results indicated acceptable product release.A historical review of complaint data revealed a total of 8 similar complaints, with 3 confirmed devices, in the past two years.(b)(4).A risk analysis was performed and found this failure mode and occurrence to be consistent with current risk documents.The instructions for use advise the user of the following.- if the electrodes do not adhere properly to the patient, apply a new pair.Due to the severity of this malfunction, the investigation process has been escalated to a higher level in conmed and at the manufacturer of this device, katecho inc.A ship hold has been initiated to hold suspect padpro inventory until investigation is completed.This issue will continue to be monitored through the complaint system.
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