The user facility did not involve the local dräger s&s organization into any follow-up measures and did not provide further information upon request.The device is not under a dräger service contract, status of preventive maintenance is thus unknown.Even the age of the device cannot be determined since no s/n information was transmitted.A case-specific evaluation is thus not possible, especially in reflection of the aspect that no clear description of the restrictions was provided.This report is filed in abundance of caution since it cannot be fully excluded that ventilation had stopped.Under consideration that it was indeed the case, a stop of ventilation is not necessarily related to a device malfunction.A repositioning of the patient or a coughing in the moment when the ventilator piston applies a breathing hub may lead to a transient airway pressure rise and, the device is designed to abort the ventilation stroke and to alert the user to this condition.The reported aspect that device function was restored autonomously after a short time would also substantiate the assessment that rather physiological or procedural aspects than a device malfunction have caused the reported observation.Finally, other explanations may apply as well and, a differentiation is not possible due to lack of information.It is recommended to the user facility to have the device checked by trained service personnel.When automatic ventilation fails, the device design allows manual ventilation via the built-in breathing bag.
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It was reported that "the anesthesia machine suddenly failed to work normally" during a surgical procedure.The users reportedly decided to switch to manual ventilation.As per report, the anesthesia workstation restored function after one minute by its own.No patient consequences resulted from the event, it was explicitly mentioned that all vital parameter remained stable during the course of event.
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