| abstract |
A sleeping aid comprising a head strap 6; a nose and mouth mask 1; and electronic apparatus 2 to detect trigger events for reducing or increasing the oxygen in a supply of air to the wearer of the mask. The device may control the concentration of oxygen in the air inhaled by a user using electronically controlled semi-permeable membrane valves 22 in order to induce a state of sleep by lowering the oxygen concentration of the inhaled air. The blood oxygen saturation of the user (SpO2) may be measured using a nasal pulse oximeter 7 (Figure 4), and the device may seek to raise the blood oxygen saturation of the user once they have fallen asleep. Further sensors may comprise an accelerometer and a gyroscope for determining the position of the user. Sensor information may be transmitted wirelessly to a remote device, such as a mobile app, which may remotely control the sleeping aid. |