The lot number for the device has been provided.A review of the device history records is currently being performed.The device has been returned to the mfr for eval.The investigation is currently underway.The info provided by bard represents all of the known info at this time.Despite good faith efforts to obtain additional info, the complainant/ reporter was unable or unwilling to provide any further pt, product, or procedural details to bard.
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The lot number has been provided and the lot device history records have been reviewed.The lot met all release criteria.There was nothing found to indicate there was a manufacturing related cause for this event.Visual/microscopic inspection: the catheter was returned severely damaged.Bunching of the outer catheter and guidewire lumen was noted throughout the length of the catheter.The outer catheter was torn near the rapid exchange junction and the guidewire was bent at this location.The guidewire was returned within the inner guidewire lumen and was protruding out the distal tip of the crosser.The distal tip of the introducer sheath was flared, likely indicating retraction issues.Functional/performance evaluation: the guidewire could not be removed from the inner guidewire lumen.The guidewire lumen was straightened out and the guidewire was able to be removed with resistance.Dried blood was observed on the guidewire and a tear was noted in the inner guidewire lumen near the rapid exchange junction.The patency of the distal tip was tested with the returned guidewire and passed without issue.The guidewire and inner guidewire lumen of the crosser were examined under a microscope and no signs of melting were observed.The outer catheter was cut near the distal tip and no twisting of the inner guidewire lumen was noted.No further functional testing could be performed due to the poor sample condition.Medical records review: no medical records have been made available to the manufacturer.Image/photo review: no medical images have been made available to the manufacturer.Conclusion: the investigation is inconclusive for the catheter melting to the guidewire, as functional testing could not be performed due to the poor sample condition and no obvious signs of melting were found on the catheter or the guidewire.The guidewire was returned stuck within the catheter.However, the guidewire was able to be removed once the bunching of the inner guidewire lumen was straightened out.The investigation is confirmed for retraction issues, as the crosser catheter was returned within a 6fr introducer sheath and the tip of the sheath was flared.Per the reported event details, there were 15 events from the same user over a short period of time where the guidewires melted to the catheters during activation.The user's flowmate injector and generator were replaced with new units and the problem has not been experienced since.Therefore, it is possible that the flowmate injector and/or the generator contributed to the reported events.However, based upon the available information the definitive root cause is unknown.Labeling review: the crosser catheter instructions for use (ifu) provides general instructions for use of the device, as well as warnings, precautions, and potential complications associated with the device.The information provided by bard represents all of the known information at this time.Despite good faith efforts to obtain additional information, the complainant / reporter was unable or unwilling to provide any further patient, product, or procedural details to bard.
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