The 8f pro-fuse port was returned for evaluation.A 22cm segment of lumen is attached to the port stem with a catheter lock.Visual examination of the lumen shows a longitudinal slice in the lumen 6.5cm from the port stem.The slice is 0.5cm in length.The slice leaks when the device is flushed.There is another mark on the lumen perpendicular to the slice.This mark does not leak.A supplier corrective action request was issued to the contract manufacturer for this event.The visual inspection identified two areas of damage to the lumen.The first area presented two perpendicular marks, approximately 0.5 cm long.Of these 2 marks, the lower mark is where the leak was present.The marks/lines appear to have been made by something that pressed this section of the tube, causing these marks to be generated and later the leakage.The second area of damage looks like the tube was twisted, causing this deformation with no leak.A review of the manufacture records for the lot number reported revealed the device was manufactured and inspected according to specification with no non-conformances or abnormalities.The device was implanted and functioned with no issues for one month prior to the reported event.Based on the evaluation of the device and a review of the manufacture records a root cause cannot be determined but is not likely manufacture related.Device was used for treatment, not diagnosis.If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.
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