It was reported that during a second attempt for an open tunneled trial for the patient, the physician was attempting to position the lead utilizing the bigger curve sheath and a portion of the sheath sheared off and stayed within the epidural space.The patient did have significant bone growth around the s1 foramen from a previous fusion that went into the sacrum.Given the location, the decision was made to leave the piece of the sheath.However, the procedure attempt was aborted.
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The results of the investigation are inconclusive since the device was not returned for analysis.Based on the information received, the cause of the reported event could not be conclusively determined.During processing of this incident, attempts were made to obtain complete patient information.Further information was requested but not received.
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