A patient underwent an ablation procedure with a thermocool® smart touch® sf bi-directional navigation catheter for which biosense webster¿s product analysis lab identified reddish-brown material inside the pebax.It was initially reported by the customer that the carto 3 system was displaying a high force warning when trying to ablate.The catheter was rezeroed without resolution.The catheter was replaced, the issue was resolved, and the procedure was continued.No patient consequences were reported.Force issue is not mdr-reportable.Hole in the pebax is mdr-reportable.
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The product investigation was completed.Device evaluation details: visual analysis of the returned catheter revealed reddish-brown material inside the pebax.The spi (shaft proximity interference) screening test was performed, in accordance with bwi procedures.The returned sample was connected to carto3 system, and the force values were observed within specifications.Sem conclusion indicates evidence of mechanical damage and a hole on the pebax surface.The evaluation determined that the cause of pebax damage failure cannot be established.A manufacturing record evaluation was performed for the finished device 30907738l number, and no internal actions related to the complaint were found during the review.The events described were unable to duplicate during the product investigation however, the blood inside the pebax area found could be related to the reported issue.It should be noted that product failure is multifactorial.The instructions for use (ifu) contain the following recommendations: the force sensor of the catheter be disconnected.If the problem persists, replace the catheter cable or the catheter.If additional information is received regarding this event, a supplemental 3500a report will be submitted to the fda.Manufacturer's reference number: (b)(4).
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