The device was not returned for analysis.A review of the lot history record revealed no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other complaints reported from this lot.The investigation was unable to determine a cause for the reported gripper actuation issue (one gripper would not lowered).The reported off-label use was due to the device being used on a tricuspid valve.There is no indication of a product issue with respect to manufacture, design, or labeling.
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