The 4.8 teleflex aortic punch was not available.So the surgeon called for and used the medtronic 4.8 aortic punch model ap-448 ref # apu 448 lot # 212796645 and it malfunctioned.When the surgeon attempted to punch the aorta, it failed and got snagged on the tissue and on the second attempt, it was the same result as the first.So switched to the 4.0 teleflex aortic punch.Manufacturer response for medtronic 4.8 aortic punch model ap-448, medtronic 4.8 aortic punch (per site reporter).The operating room will contact medtronic at the request of the surgeon.
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