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Device evaluation details: the device was returned to biosense webster inc (bwi) for evaluation and the evaluation has been completed.Visual inspection and deflection test of the returned device were performed following bwi procedures.Visual analysis revealed the peek housing broke with exposed wires.This issue is unrelated to the reported event.The potential cause of the peek housing damage could be related to the manipulation of the device during the procedure; however, this cannot be conclusively determined.A deflection test was performed, and the curve was deflecting within specifications.No deflection issues were observed.A manufacturing record evaluation was performed for the finished device number lot and no internal action related to the complaint were found during the review.The deflection issue reported by the customer could not be replicated during the product investigation; other issues or circumstances may have occurred during the usage of the device that compromised its performance.In relation to the peek housing rupture, the instructions for use states: when cleaning the tip electrode, be careful not to twist the tip electrode with respect to the catheter shaft; twisting may damage the tip electrode bond and loosen the tip electrode, or may damage the contact force sensor.In addition, in order to prevent damage to the catheter tip, use the insertion tube supplied with the catheter to advance or retract the catheter through the hemostasis valve of the sheath.After insertion, slide the insertion tube back toward the handle.As part of biosense webster's quality process, all devices are manufactured, inspected, and released to approved specifications.Explanation of codes: investigation findings: mechanical problem identified (c07) / investigation conclusions: unintended use error caused or contributed to event (d1102) / component code: sleeve (g04115) were selected as related to the broken pebax issue identified by bwi pal.Investigation findings: no device problem found (c19) / investigation conclusions: no problem detected (d14) were selected as related to the customer's reported deflection issue.If additional information is received regarding this event, a supplemental 3500a report will be submitted to the fda.Manufacturer's ref.(b)(4).
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It was reported that a patient underwent a cardiac ablation procedure with a navi-star¿ thermo-cool¿ electrophysiology catheter for which biosense webster¿s product analysis lab (pal) identified the pebax broken.It was initially reported by the customer that during the operation, catheter was unable to deflect or relax completely.A second device was used to complete the operation.There was no adverse event reported on patient.The customer's reported deflection issue is not considered to be mdr reportable since the potential risk that it could cause or contribute to a serious injury or death to the operator or patient is remote.On 5-jun-2024, the bwi pal revealed that a visual inspection of the returned device found the peek housing broke with exposed wires.These findings were reviewed and assessed this as an mdr reportable malfunction since the integrity of the device has been compromised.
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