Additional information was received that the patient did not have a stroke.Therefore, the event type was revised to a malfunction.During a diagnostic cerebral angiography, a thrombus developed as soon as the guidewire was withdrawn from the catheter.The catheter became clogged in a few seconds.The customer changed the catheter with a non cordis catheter and the procedure was finished with success and patient was not injured.The product was not returned for analysis.A product history record (phr) review of lot 17797905 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿catheter (body/shaft) obstructed - in-patient¿ and ¿thrombus in catheter¿ could not be confirmed as the device was not returned for analysis.The exact cause could not be determined.Procedural factors may have contributed to the reported event, as it is recommended that the patient should be considered for anticoagulation.According to the precautions in the safety information in the instructions for use ¿for all catheters: keep the catheter filled with either flushing solution or contrast medium while the catheter is in the vascular system and consider the use of systemic heparinization.Exercise care when removing guidewires from multiple-curve catheters.¿ neither the phr nor the limited information available suggests a design or manufacturing related cause for the reported event; therefore, no corrective/preventive action will be taken at this time.
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