Sorin group received a report that an arterial cannula became lodged in an artery and tore the artery when the surgeon attempted to remove it.The surgeon repaired the artery without any patient complications.The complaint product was not returned to sorin group usa, as it was discarded by the customer.Unused inventory from the same lot was pulled for visual inspection and simulated use testing.Visual inspection of the produce before testing did not identify any defects or abnormalities.Two of the cannula pulled from inventory were used for simulated use testing.Blood was kept at 65 degrees celsius and circulated through the cannula for 6 hours while the cannula were submerged in a pool of warm bovine blood to simulate the exposure to the patient's body temperature.Visual inspection of the cannula after the simulated use tests found no defects.The cannula were identical in appearance to the units that had not undergone testing.The outer diameter was examined for (b)(4) of the devices pulled from inventory and all of the units were found to be within specification.All of the other cannula from this lot were visually inspected for surface integrity, spring exposure, ridges between the wires, uneven surface or any other surface abnormalities, and no issues were discovered.The supplier of this product was notified of the reported issue and conducted a review of the dhr, which did not identify any deviations or non-conformities relevant to the reported failure.No trend was identified for this type of issue.Sorin group will continue to monitor the market for trends.Eval'd product from inventory (same lot).
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