On (b)(6) 2018, a 19mm regent valve was selected.During device preparation, it was that noticed one of the leaflets had dislodged as a single piece from the butterfly hinges while rotating with the holder.The procedure was successfully completed with a 17mm regent valve as this was the next available size at the hospital.The procedure was extended by more than 30 minutes, but the patient was hemodynamically stable throughout the procedure and is reported stable.
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The reported event of a dislodged leaflet could not be confirmed.Both leaflets were properly inserted into the orifice and fully mobile.One chip was found on one recessed pivot area.It is unknown if the leaflet had been reinserted into the orifice.The device history record was reviewed to ensure that each manufacturing and inspection operation was performed.The cause of the reported event remains unknown; however, information from the field indicated that a smaller, 17mm, valve was subsequently implanted.Please note, per instructions for use artmt100122074 ver.A, " the valve should rotate freely.If resistance is noted, the valve holder/rotator may not be properly seated in the valve, the valve may not be in the fully closed position, or the valve may be oversized.If the valve does not rotate freely, do not force valve rotation.".
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