Device evaluation: customer complaint of dilator removal difficulty was unable to be confirmed or assessed.Od measurement of dilator was 0.205", which was in specification.As received, the dilator had multiple surface cuts at the distal tip.No other visible damage, contamination, or other abnormalities were observed from returned device.Additional manufacturer narrative: the device was returned for evaluation.The device history record (dhr) was reviewed and shows that this device met all manufacturing specifications for product release prior to distribution.No issues were identified that would have impacted this event.It was reported that resistance was felt when the dilator was removed from the patient during use.The purpose of the dilator is to create a path through the subcutaneous tissue to allow placement of a percutaneous arterial or venous cannula.This is done prior to the initiation of the bypass.Difficulty to remove the dilator typically could result from anatomic variations and may require manipulation of the dilator for removal with minimal delay and risk to the patient.In this case, product evaluation demonstrated multiple surface cuts at the distal tip of the dilator.It is unknown if the cuts existed before use or they were caused by a sharp instrument after pulling the dilator out of the patient.Based on the information received the cause of the event cannot be determined.If additional information is received a supplemental mdr will be submitted.Trend was reviewed and found to be in control.No further corrective or preventative actions are required at this time.Edwards lifesciences will continue to monitor all reported events.
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