One 75 mm tacticath quartz contact force ablation catheter was received for evaluation.Electrodes 1-4 met specifications for acceptable resistance values with no open circuits detected.However, multiple short circuits were detected, consistent with the reported interference issue.In addition, fluid was noted outside of the irrigation tubing but within the tygon tubing proximal to the catheter handle.Further testing revealed a gap in the adhesive between the irrigation tube and the proximal tube inside the luer lock allowing fluid to flow outside of the irrigation tubing and into the proximal tubing towards the optical and electrical connectors, consistent with the fluid residue noted within the connector plug, the detected short circuits, and the reported leak issue.The device history record was reviewed to ensure that each manufacturing and inspection operation was performed.The leak at the luer/irrigation tubing junction was determined to be supplier related.Abbott is continuing to monitor the reported issue.
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