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US 12,758,416 B2Granted
Positional obstructive sleep apnea detection system
AssigneeOura Health Oy
InventorsThomas G. Goff, Kirby Chiang, Nathaniel L. Bowditch
Life of this patent
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Abstract
An obstructive sleep apnea detection device including an optical engagement surface adapted to engage a user's skin; a light source adapted to emit light from the optical engagement surface; a photodetector adapted to detect light at the optical engagement surface and to generate a detected light signal; a position sensor adapted to determine patient sleeping position; a controller adapted to determine and record in memory blood oxygen saturation values computed from the detected light signal and user position information from the position sensor; and a housing supporting the optical engagement surface, the photodetector, the light source, the position sensor, and the controller.
Claims20
A device for obstructive sleep apnea detection comprising:
- a housing having a sensor interface element comprising an optical engagement surface adapted to engage skin of a user;
- a position sensor disposed in the housing and adapted to obtain position data that indicates whether the user is in a first patient sleeping position or a second patient sleeping position;
- a first optical element disposed in the housing and adapted to emit light through a first opening in the optical engagement surface;
- a second optical element disposed in the housing adapted to receive the light through a second opening in the optical engagement surface, the second optical element configured to:
- generate a first detected light signal associated with first position data that indicates the first patient sleeping position and a second detected light signal associated with second position data that indicates the second patient sleeping position, wherein the first detected light signal corresponds to a first plurality of blood oxygen saturation events occurring when the user is in the first patient sleeping position and the second detected light signal corresponds to a second plurality of blood oxygen saturation events occurring when the user is in the second patient sleeping position;
- and
- a controller adapted to:
- obtain one or more analysis results for the first patient sleeping position and the second patient sleeping position based at least in part on comparing a frequency of the first plurality of blood oxygen saturation events occurring when the user is in the first patient sleeping position with a frequency of the second plurality of blood oxygen saturation events occurring when the user is in the second patient sleeping position and an average value of the first plurality of blood oxygen saturation events occurring when the user is in the first patient sleeping position with an average value of the second plurality of blood oxygen saturation events occurring when the user is in the second patient sleeping position, wherein a blood oxygen saturation event occurs when a detected light signal satisfies a threshold value;
- and
- record in memory the one or more analysis results for the first patient sleeping position and the second patient sleeping position in accordance with the comparison.
7 more elements
A method for obstructive sleep apnea detection comprising:
- obtaining position data that indicates whether a user is in a first patient sleeping position or a second patient sleeping position;
- generating, at one or more optical elements, a first detected light signal associated with first position data that indicates the first patient sleeping position and a second detected light signal associated with second position data that indicates the second patient sleeping position, wherein the first detected light signal comprises a first plurality of blood oxygen saturation events occurring when the user is in the first patient sleeping position and the second detected light signal comprises a second plurality of blood oxygen saturation events occurring when the user is in the second patient sleeping position;
- obtaining one or more analysis results for the first patient sleeping position and the second patient sleeping position based at least in part on comparing a frequency of the first plurality of blood oxygen saturation events occurring when the user is in the first patient sleeping position with a frequency of the second plurality of blood oxygen saturation events occurring when the user is in the second patient sleeping position and an average value of the first plurality of blood oxygen saturation events occurring when the user is in the first patient sleeping position with an average value of the second plurality of blood oxygen saturation events occurring when the user is in the first patient sleeping position, wherein a blood oxygen saturation event occurs when a detected light signal satisfies a threshold value;
- and
- recording in memory the one or more analysis results for the first patient sleeping position and the second patient sleeping position in accordance with the comparison.
2 more elements
Dependencies are inferred from the claim text.