Devices, systems and methods for plethysmographic monitoring at the nose
First Claim
1. A method of monitoring respiration of an individual, comprising:
- (a) securing onto the nose of the individual a device comprising;
1) a pulse oximetry probe; and
2) another sensor for monitoring respiration at the nose;
(b) collecting data on a breathing cycle of the individual from the pulse oximeter probe, wherein the data on the breathing cycle is obtained from evaluating changes in an envelope of a DC component of a photoplethysmography signal from the pulse oximeter;
(c) collecting data on a pattern or dynamics of respiration from the other sensor for monitoring respiration at the nose;
(d) analyzing with a processor the data from the pulse oximeter probe and the other sensor to determine whether the individual needs more or less oxygen; and
(e) if the analysis in step (d) indicates a need for more or less oxygen to the individual, automatically adjusting a supply of oxygen or oxygen-rich air to the individual.
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Abstract
The present invention relates to novel lip/cheek probes for detection of pulse-based differences in light absorbence across the vascularized tissue of a lip or cheek of a patient. These probes are fabricated to provide signals to estimate arterial oxygen saturation, and/or to obtain other photoplethysmographic data. The present invention also relates to a combined probe/cannula. The present invention also relates to other devices that combine a pulse oximeter probe with a device supplying oxygen or other oxygen-containing gas to a person in need thereof, and to sampling means for exhaled carbon dioxide in combination with the novel lip/cheek probes. In certain embodiments, an additional limitation of a control means to adjust the flow rate of such gas is provided, where such control is directed by the blood oxygen saturation data obtained from the pulse oximeter probe.
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Citations
8 Claims
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1. A method of monitoring respiration of an individual, comprising:
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(a) securing onto the nose of the individual a device comprising;
1) a pulse oximetry probe; and
2) another sensor for monitoring respiration at the nose;(b) collecting data on a breathing cycle of the individual from the pulse oximeter probe, wherein the data on the breathing cycle is obtained from evaluating changes in an envelope of a DC component of a photoplethysmography signal from the pulse oximeter; (c) collecting data on a pattern or dynamics of respiration from the other sensor for monitoring respiration at the nose; (d) analyzing with a processor the data from the pulse oximeter probe and the other sensor to determine whether the individual needs more or less oxygen; and (e) if the analysis in step (d) indicates a need for more or less oxygen to the individual, automatically adjusting a supply of oxygen or oxygen-rich air to the individual. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification