Depth of consciousness monitor including oximeter
First Claim
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1. 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, anda 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.
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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.
1234 Citations
18 Claims
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1. A forehead sensor for monitoring the depth of consciousness of a patient comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A light source for a brain oxygenation sensor, the brain oxygenation sensor comprising:
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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. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification