A review of device history record (dhr) was conducted and there were no manufacturing rejects or anomalies recorded in the dhr affecting released product.The released device passed all in-process and qa final inspection steps including mechanical, dimensional and electrical tests before shipping to the customer.A complaint review of the reported lot found no additional reports involving this lot number.The released receptacles were inspected as instructed in the bipolar is-1 receptacle assembly in-process and final inspection procedure.The atar instructions for use (ifu) states to: first attach the proximal connector(s) to a pacemaker/analyzer or another extension cable while observing polarity indicated by the color.Then attach the distal connector(s) to the temporary lead connector or to another extension cable, again observing polarity by the color.The detachment of the connection should be done in the reverse order.The ifu instructs the user that the extension cable is intended to connect an electrode/lead from a patient or another cable to a diagnostic machine or an external pacemaker.It cautions the user prior to use, read all package inserts, warnings, precautions, and instructions.Failure to do so may result in severe patient injury or death.Two atar d-is-1-2pace adaptors from the lot number in question were returned from the customer.There were no other accessories.No visible blood was found on any of the adaptors.Upon evaluation of the returned product, it was found that one adaptor had the set screw backed out too far.The screw was not engaged with the set screw block.The other adaptor had an excessive chamfer on the threaded side hole that affects the function of the set screw.When the set screw is backed out (counterclockwise) there is minimal thread engagement which inhibits the set screw from being tightened.The silicone was removed from above the set screws for further inspection of the threaded component.It was identified that the component had an excessive chamfer on the threaded side hole which affects the function of the set screw.When the set screw is backed out (counterclockwise) there is minimal thread engagement which inhibits the set screw from being tightened.An additional existing control point that was reviewed during the investigation is the qa final inspection of the finished adaptor receptacle per the bipolar lead adaptors/extensions final inspections procedure.All final production units are functionally tested for set screw engagement by inserting a "transportation pin" which simulates the final lead connection and secures the screw during transportation.The screw is set to hold the transportation pin and test the screw process.An opportunity was identified to improve this functional inspection using a torque limiting tool.With this method, the screw force applied can be standardized between final inspection and simulate end user application.This improvement will further enhance the detectability of this failure mode.The device was to be used for treatment.The device was returned for analysis and the investigation determined that the reason for the return was confirmed as the set screws did not function properly.Corrective and preventive actions were implemented.No further action is required.The event will be re-evaluated if additional information becomes available.Oscor inc., is submitting the above report to comply with 21 cfr part 803, the medical device reporting regulation.The report is based upon information obtained by oscor inc., which the company may not have been able to investigate or verify prior to the date the report was required by fda.This report does not constitute an admission that the device, oscor, inc., or its employees, caused or contributed to the event described in this report.Nor does this report reflect a conclusion by fda, oscor, inc., or its employees, that the report constitutes an admission that the device, oscor, inc., or its employees caused or contributed to the event described in this report.
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Although requested, no patient information was made available.The reported incident occurred during a temporary pacer procedure.As a result of the reported issue, they had to open a permanent generator to pace the patient.A delay in care was reported, however it is noted that the patient was stable with no adverse effects reported.
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