Regional saturation shock detection method and system
First Claim
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1. A system comprising:
- light drive circuitry configured to drive a light emitter coupled to a regional saturation sensor;
input circuitry configured to receive a regional saturation signal from a first detector and a second detector of the regional saturation sensor, wherein the first detector and the second detector are spaced apart from the light emitter at respective first and second distances, the second distance being greater than the first distance;
a processor configured to execute instructions to;
determine a regional saturation parameter based on the regional saturation signal, wherein the processor is configured to determine the regional saturation parameter by at least assessing a portion of the signal that is representative of light detected by the second detector that has passed through additional tissue relative to the first detector;
receive information related to a blood pressure parameter of a patient;
compare the regional saturation parameter to a first threshold;
compare the blood pressure parameter to a second threshold;
determine that the patient is in shock based on the comparison of the regional saturation parameter to the first threshold and the comparison of the blood pressure parameter to the second threshold; and
provide an output related to shock based on the determination that the patient is in shock; and
a memory storing the instructions.
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Abstract
According to various embodiments, a medical system and method for early detection of shock may include devices configured to provide information about multiple patient parameters. In certain embodiments, the system may receive input from a regional saturation sensor. Based on these inputs, the system may provide a diagnosis of shock and/or distinguish between various types of shock.
15 Citations
16 Claims
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1. A system comprising:
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light drive circuitry configured to drive a light emitter coupled to a regional saturation sensor; input circuitry configured to receive a regional saturation signal from a first detector and a second detector of the regional saturation sensor, wherein the first detector and the second detector are spaced apart from the light emitter at respective first and second distances, the second distance being greater than the first distance; a processor configured to execute instructions to; determine a regional saturation parameter based on the regional saturation signal, wherein the processor is configured to determine the regional saturation parameter by at least assessing a portion of the signal that is representative of light detected by the second detector that has passed through additional tissue relative to the first detector; receive information related to a blood pressure parameter of a patient; compare the regional saturation parameter to a first threshold; compare the blood pressure parameter to a second threshold; determine that the patient is in shock based on the comparison of the regional saturation parameter to the first threshold and the comparison of the blood pressure parameter to the second threshold; and provide an output related to shock based on the determination that the patient is in shock; and a memory storing the instructions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system, comprising:
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one or more light emitters; a plurality of detectors that, in operation, detect light emitted by the one or more light emitters to generate a first signal representative of a regional saturation of the patient; and a non-invasive blood pressure sensor that, in operation, generates a second signal representative of a blood pressure of the patient; and a monitor configured to; receive the first signal and determine a regional saturation parameter of the patient based on the first signal; receive the second signal and determine a blood pressure parameter of the patient based on the second signal; compare the regional saturation parameter to a first threshold; compare the blood pressure parameter to a second threshold; and determine that the patient is in shock or is not in shock based on the comparison of the regional saturation parameter to the first threshold and the comparison of the blood pressure parameter to the second threshold. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification