It was reported that during intra-aortic balloon (iab) therapy, a fiber optic sensor failure occurred.The central lumen was also clotted and the iab could not aspirate or flush.There was no other arterial line available.The customer was advised to consider obtaining another arterial line for the pressure waveform.They did have the correct pressure cable and planned to call the physician for further assistance.At this point, the console was pumping and the patient was stable.There was no patient harm or adverse event reported.
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The product was returned with the membrane completely unfolded with blood on the exterior of the catheter and between the catheter and the returned maquet sheath.The extender tubing and non-maquet pressure tubing were also returned.An optical fiber break was observed within the membrane at approximately 26.2cm from the iab tip.An underwater leak test of the balloon, catheter tubing, y-fitting, extracorporeal tubing and extender tubing was performed and no leaks were detected.A 0.025¿ laboratory guidewire was inserted through the inner lumen and was found to be occluded with dry blood.Unable to clear the occlusion.The inner lumen was found occluded and the optical fiber was found to be broken, confirming the reported problem.However, we are unable to determine when these failures may have occurred.A non-conforming material report review was completed for the reported product.No nonconformances were found that are considered to be related to the event.Analysis of production (3331/213) - the device history records review concluded that there were no ncmrs, rework, or deviations documented for the reported lot/serial number.Based on the review results, it was determined that there is no relation between the manufacturing process and the reported failure.Historical data analysis (4109/213) - the review of the historical data was performed.Trend analysis (4110/213) - the overall complaint trend data for the period sep-19 through aug-21 was reviewed.Communication/interviews: (4111/213) communication/interviews were performed to obtain all possible information.Reference complaint #(b)(4).
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