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It was reported that during set-up of the device for a cardiopulmonary bypass (cpb) procedure, the heart lung machine (hlm) had no backup battery and the batteries were defective.As a result, an alternate device was employed.The surgical procedure was completed successfully.There was a 30 minute delay, no blood loss, nor adverse consequences to the patient.Per clinical review: the user reported using the hlm prior to cpb, at which time they observed there was no battery back-up.They stated the batteries were defective and needed to be replaced.This occurred during set-up, there was a delay to the surgical procedure of approximately 30 minutes.The surgery was completed successfully, with no blood loss and injury.
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