MASK ASSEMBLY, SYSTEM AND METHOD FOR DETERMINING THE OCCURRENCE OF RESPIRATORY EVENTS USING FRONTAL ELECTRODE ARRAY
First Claim
1. A system for determining the occurrence of respiratory events, comprising:
- a plurality of electrodes positionable at frontal locations on a person'"'"'s forehead to sense bioelectric signals;
a measurement device for measuring respiratory flow of the person;
a blood oximeter device for measuring a blood oxygen saturation of the person; and
a processing unit coupled to the plurality of electrodes, the flow measurement device and the blood oximeter device, wherein the processing unit is configured to determine a sleep state of the person based on the bioelectric signals, to determine the occurrence of an apnea event based on the sleep state and the respiratory flow and to determine the occurrence of a hypopnea event based on the respiratory flow, the sleep state of the person and the blood oxygen saturation.
1 Assignment
0 Petitions
Accused Products
Abstract
Embodiments of the invention relate to methods, systems and mask assemblies for use in determining the occurrence of respiratory events using a frontal electrode array. The methods, systems and mask assemblies involve use of means for flow measurement of breathing gas of a person, blood oxygen saturation measurement means and a frontal electrode array for measuring frontal bioelectric signals, each of which is coupled to a processing unit. The processing unit is configured to determine the occurrence of at least one of an apnea event and a hypopnea event based on the measurement signals. Some embodiments involve calculation of an apnea-hypopnea index (AHI) based on the determined apnea and hypopnea events over a period of time.
-
Citations
46 Claims
-
1. A system for determining the occurrence of respiratory events, comprising:
-
a plurality of electrodes positionable at frontal locations on a person'"'"'s forehead to sense bioelectric signals;
a measurement device for measuring respiratory flow of the person;
a blood oximeter device for measuring a blood oxygen saturation of the person; and
a processing unit coupled to the plurality of electrodes, the flow measurement device and the blood oximeter device, wherein the processing unit is configured to determine a sleep state of the person based on the bioelectric signals, to determine the occurrence of an apnea event based on the sleep state and the respiratory flow and to determine the occurrence of a hypopnea event based on the respiratory flow, the sleep state of the person and the blood oxygen saturation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
-
-
35. A method of determining the occurrence of respiratory events, comprising:
-
positioning a plurality of electrodes at frontal locations on a person'"'"'s forehead;
sensing bioelectric signals using the plurality of electrodes;
measuring respiratory flow of the person;
measuring a blood oxygen saturation of the person;
determining a sleep state of the person based on the bioelectric signals;
determining occurrence of an apnea event based on the sleep state and the respiratory flow; and
determining occurrence of a hypopnea event based on the respiratory flow, the blood oxygen saturation and the sleep state of the person. - View Dependent Claims (23, 36, 37, 38, 39, 40, 41, 42, 43, 44)
-
-
45. A system for determining the occurrence of respiratory events, comprising:
-
a plurality of electrodes positionable at frontal locations on a person'"'"'s forehead to sense bioelectric signals;
a measurement device for measuring respiratory flow of the person; and
a processing unit coupled to the plurality of electrodes and the flow measurement device, wherein the processing unit is configured to determine a sleep state of the person based on the bioelectric signals and to determine the occurrence of an arousal based on the bioelectric signals, and wherein the processing unit is further configured to determine the occurrence of an apnea event based on the sleep state and the respiratory flow and to determine the occurrence of a hypopnea event based on the respiratory flow, the sleep state of the person and the occurrence of an arousal.
-
-
46. A method of determining the occurrence of respiratory events, comprising:
-
positioning a plurality of electrodes at frontal locations on a person'"'"'s forehead;
sensing bioelectric signals using the plurality of electrodes;
measuring respiratory flow of the person;
determining a sleep state of the person based on the bioelectric signals;
determining occurrence of an arousal based on the bioelectric signals;
determining occurrence of an apnea event based on the sleep state and the respiratory flow; and
determining occurrence of a hypopnea event based on the respiratory flow, the sleep state and the arousal.
-
Specification