Airway instability detection system and method
First Claim
1. An improved pulse oximetry based method for recognition of a physical condition, comprising:
- attaching a sensor of a pulse oximeter to a body part of a patient;
collecting, by a processor from the sensor, real time data representative of a timed waveform comprising repetitive photoplethysmographic pulse waves, wherein the photoplethysmographic pulse waves are responsive to changes in pulse volume of blood in the body part induced by cardiac contractions, each photoplethysmographic pulse wave defining a plurality of pulse wave components, said pulse wave components comprising a rise, a rise amplitude, a rise slope, a peak, a fall, a fall amplitude, a fall slope, a nadir, and an area, said processor detecting variations of at least one of said pulse wave components;
recognizing, by the processor, an occurrence of a cluster pattern comprised of two or more closely spaced variations of said at least one of said pulse wave components induced by at least one of an apnea cluster or a hypopnea cluster; and
automatically modifying or inducing modification of a treatment of the patient.
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Abstract
A system and method for data processing is disclosed. One example of a processor-based method comprises accessing data representative of a time series of at least one component of a timed waveform corresponding to a pulse, and searching the data for an occurrence of a cluster of variations induced by at least one of an apnea cluster and a hypopnea cluster. An exemplary system comprises a memory device adapted to access data representative of a time series of at least one component of a timed waveform corresponding to a pulse, and a processor adapted to search the data for an occurrence of a cluster of variations induced by at least one of an apnea cluster and a hypopnea cluster.
667 Citations
25 Claims
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1. An improved pulse oximetry based method for recognition of a physical condition, comprising:
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attaching a sensor of a pulse oximeter to a body part of a patient; collecting, by a processor from the sensor, real time data representative of a timed waveform comprising repetitive photoplethysmographic pulse waves, wherein the photoplethysmographic pulse waves are responsive to changes in pulse volume of blood in the body part induced by cardiac contractions, each photoplethysmographic pulse wave defining a plurality of pulse wave components, said pulse wave components comprising a rise, a rise amplitude, a rise slope, a peak, a fall, a fall amplitude, a fall slope, a nadir, and an area, said processor detecting variations of at least one of said pulse wave components; recognizing, by the processor, an occurrence of a cluster pattern comprised of two or more closely spaced variations of said at least one of said pulse wave components induced by at least one of an apnea cluster or a hypopnea cluster; and automatically modifying or inducing modification of a treatment of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An improved pulse oximeter for recognition of a physical condition of a patient, comprising:
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a sensor of said pulse oximeter to be attached to a body part of a patient; a memory device to collect, from the sensor, data representative of a timed waveform corresponding to photoplethysmographic pulse waves, wherein the photoplethysmographic pulse waves are responsive to changes in pulse volume of blood in the body part of the patient induced by cardiac contractions, each photoplethysmographic pulse wave defining a plurality of pulse wave components, said pulse wave components comprising a rise, a rise amplitude, a rise slope, a peak, a fall, a fall amplitude, a fall slope, a nadir, and an area; and a processor to detect variations of at least one of said pulse wave components, and recognize an occurrence of a cluster pattern comprised of two or more closely spaced variations of said at least one of said pulse wave components induced by at least one of an apnea cluster or a hypopnea cluster and to modify or induce modification of a treatment of the patient responsive to said recognizing. - View Dependent Claims (18, 19, 20, 21)
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22. An improved pulse oximeter for recognition of a physical condition of a patient, comprising:
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means for sensing real time data in said pulse oximeter; means for collecting the real time data from the means for sensing comprising a timed waveform corresponding to repetitive photoplethysmographic pulse waves, wherein the photoplethysmographic pulse waves are responsive to changes in pulse volume of blood in a body part of the patient induced by cardiac contractions, each photoplethysmographic pulse wave defining a plurality of pulse wave components, said pulse wave components comprising a rise, a rise amplitude, a rise slope, a peak, a fall, a fall amplitude, a fall slope, a nadir, and an area; means for detecting variations of at least one of said pulse wave components; means for recognizing an occurrence of a cluster pattern comprised of two or more closely spaced variations induced by at least one of an apnea cluster or a hypopnea cluster; and means for modifying a treatment of the patient responsive to said recognizing.
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23. An improved pulse oximeter for recognition of a physical condition of a patient comprising:
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a sensor of said pulse oximeter to be attached to a body part of a patient; a processor; and memory storing computer-readable instructions that, when executed by the processor, cause the processor to; receive data from the sensor of said pulse oximeter attached to the body part of the patient; collect and store real time data from the sensor corresponding to a time series of repetitive photoplethysmographic pulse waves, wherein the photoplethysmographic pulse waves are responsive to changes in pulse volume of blood in the body part of the patient induced by cardiac contractions, each photoplethysmographic pulse wave defining a plurality of pulse wave components, said pulse wave components comprising a rise, a rise amplitude, a rise slope, a peak, a fall, a fall amplitude, a fall slope, a nadir, and an area; detect variations of at least one of said pulse wave components; recognize an occurrence of a cluster pattern comprised of two or more closely spaced variations induced by at least one of an apnea cluster or a hypopnea cluster; and modify or induce modification of a treatment of the patient responsive to said recognizing. - View Dependent Claims (24, 25)
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Specification