Inventors:
Nelson R. Claure - Miami FL
Eduardo H. Bancalari - Miami FL
Assignee:
University of Miami - Miami FL
International Classification:
A61B 500
Abstract:
A system and method for delivering fractionally inspired oxygen (FiO ) to a patient in response to receiving an arterial hemoglobin oxygen saturation signal (SpO ) are disclosed. The SpO is measured, for example, by using a pulse oximeter. An algorithm receives a signal indicating the SpO. The algorithm determines wither the SpO is in the normoxemia range, hypoxemia range or hyperoxemia range. The algorithm also determines trends by calculating a slope of second-to-second changes in the SpO. Based on the current SpO and the trend, the algorithm determines the appropriate FiO for the patient and instructs a device, such as a mechanical ventilator or an air oxygen mixer as to the appropriate FiO to be delivered to the patient. The system initializes various parameters with default values, but a user (e. g. , a nurse) can also update the settings at any time.