Philips received a complaint on the heartstart mrx indicating that device had insufficient defibrillation discharge energy.There was no patient involvement at the time the issue was discovered.The device was evaluated by customer only.There was no further information regarding the tests customer performed, and how customer determined the cause.However, customer confirmed that the reported problem was caused by the out of calibration.The reported problem was confirmed.The device was operational after calibration by third party.Device passed all required tests, and it remains at customer site.The investigation concludes that no further action is required at this time.
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