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US 8,821,397 B2Granted
Depth of consciousness monitor including oximeter
AssigneeMasimo Corporation
InventorsAmmar Al-Ali, Yassir Abdul-Hafiz
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a sensor for monitoring the depth of consciousness of a patient. The sensor includes a plurality of light sources, light detectors, and in some embodiments, electrodes. In an embodiment, the sensor includes reusable and disposable portions.
Claims18
A forehead sensor for monitoring the depth of consciousness of a patient comprising:
- a first brain oxygenation sensor including:
- a first light source package configured to transmit optical radiation towards a cerebral cavity of a patient,
- a first detector located on the forehead sensor at a first distance from the first light source package, and
- a second detector located on the forehead sensor at a second distance from the first light source package, wherein the first distance is closer to the first light source package than the second distance;
- an EEG sensor including electrodes configured to detect electrical signals proximate skin of the forehead of the patient;
- a reusable portion configured to house the first brain oxygenation sensor;
- and
- a disposable portion configured to house the EEG sensor and is configured to be removably connectable to the reusable portion.
5 more elements
A light source for a brain oxygenation sensor, the brain oxygenation sensor comprising:
- a substrate;
- a plurality of emitters, attached to the substrate, configured to emit light with at least two different wavelengths towards a tissue site of a patient;
- a first detector configured to detect emitted light before it is attenuated by the tissue site of the patient to monitor the intensity of the emitted light;
- a cap configured to integrate the emitted light within the light source;
- an aperture for at least some of the emitted light to exit the light source towards the tissue site of the patient;
- a second detector configured to detect light attenuated by the tissue site of the patient;
- and
- a positioning element configured to position the light source proximate to the tissue site of the patient.
5 more elements
Dependencies are inferred from the claim text.