Patent ID: 8336546

Claim:
A method for providing pressurized air to a patient's airway, comprising: delivering pressurized air to the patient's airway using a wearable air pressure device comprising a position sensor configured to be located on the top of the patient's head, a pressure source configured to provide the pressurized air, a mask for delivery of the pressurized air to the patient, at least one strap for securing the system to the patient, and a controller which is configured to receive a head position signal from the position sensor that is indicative of a current head position; determining a pressure output using the current head position and an output pressure relationship, wherein the output pressure relationship is based upon a plurality of preset pressure values corresponding to a plurality of preset head positions including a supine head position, wherein there is a pressure drop between the supine position and 90° from the supine position, and wherein there is a maximum rate of pressure drop between 30° and 60° from the supine position.