Upon receipt, the lead under complaint was received for analysis.The lead tip was not returned.The analysis showed that the suture sleeve was found damaged and the conductor coil deformed 25 cm distal to the is-1 connector pin, which most likely resulted from a tight suture sleeve during the implantation procedure.Furthermore, cuts into the insulation and a deformed conductor coil were found 28 cm distal to the is-1 connector pin.These damages probably occurred during the surgery.Prior to the analysis of the device, the quality documents accompanying the manufacturing process for this device were re-investigated.All production steps were performed accordingly, and in particular the final acceptance test proved the device functions to be as specified.In conclusion, the analysis did not reveal any sign of a material or manufacturing problem.
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