It was reported to philips there was no shock delivered on a patient during emergency defibrillation using external paddles.The patient was experiencing a heart attack.Another defibrillator was not used as the patient's heart started again on its own.The device was reported to be in use on a patient, causing a delay in life saving therapy and will be considered a serious injury.However, there was no direct adverse event to the patient or user.A philips field service engineer (fse) evaluated the device.The fse found that, when the users pressed the shock button, the paddles were not in contact with the patient¿s skin, therefore, the shock had not been delivered.The users tried to shock with the external paddles, however, the connected paddles were the internal paddles, therefore, the connected paddles (internal) were not in contact with patient¿s skin which explained why no shock had been delivered.There were no ecg monitoring strips or patient event files available for review.The device behavior was reproduced by the fse but it was not an issue of the device, it was user error.The fse explained the event to the customer.No parts were replaced.The device passed all performance assurance tests and was placed back into use with the customer.There was no device malfunction found.
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