Positioning a medical device based on oxygen saturation measurements
First Claim
1. A method for measuring oxygen saturation of a user, the method comprises:
- receiving, by a computerized device, first and second detection signals and electrocardiograph signals;
wherein the first detection signals result from an illumination by infrared pulses of a sternal angle of a user, and being detected by an oxygen saturation sensor included in a device that is removably attached to a user;
wherein the second detection signals result from an illumination by visible light pulses detected by the oxygen saturation sensor, of the sternal angle of a user;
wherein the electrocardiograph signals are detected by an electrocardiography sensor that is included in the device;
generating a first waveform template by analyzing the second detection signals to normalize the second detection signals and identify cardiac cycle duration characteristics of the second detection signals that are substantially consistent within the second detection signals;
calculating an indication of the oxygen saturation characteristic of the user in response to the first and second detection signals;
detecting cardiac cycle durations that are based upon the first and second detection signals;
detecting electrocardiography based cardiac cycle durations; and
evaluating a quality of the indication of the oxygen saturation characteristic of the user by comparing the first waveform template to the electrocardiography based cardiac cycle durations.
1 Assignment
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Accused Products
Abstract
A method that includes receiving first and second detection signals and electrocardiograph signals; wherein the first detection signals result from an illumination, by an oxygen saturation sensor included in a device that may be removably attached to a user, of a sternal angle of a user by infrared pulses; wherein the second detection signals result from an illumination, by the oxygen saturation sensor, of the sternal angle of a user by visible light pulses; wherein the electrocardiograph signals may be detected by an electrocardiography sensor that may be included in the device; generating a first waveform template that may be responsive to the first detection signals; generating a second waveform template that may be responsive to the second detection signals; calculating an indication of the oxygen saturation characteristic of the user in response to the first and second detection signals; detecting cardiac cycle durations that may be based upon the first and second detection signals; detecting electrocardiography based cardiac cycle durations; and evaluating a quality of the indication of the oxygen saturation characteristic of the user in response to the first waveform template, the second waveform template, the cardiac cycle'"'"'s durations and the electrocardiography based cardiac cycle durations.
11 Citations
18 Claims
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1. A method for measuring oxygen saturation of a user, the method comprises:
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receiving, by a computerized device, first and second detection signals and electrocardiograph signals; wherein the first detection signals result from an illumination by infrared pulses of a sternal angle of a user, and being detected by an oxygen saturation sensor included in a device that is removably attached to a user; wherein the second detection signals result from an illumination by visible light pulses detected by the oxygen saturation sensor, of the sternal angle of a user; wherein the electrocardiograph signals are detected by an electrocardiography sensor that is included in the device; generating a first waveform template by analyzing the second detection signals to normalize the second detection signals and identify cardiac cycle duration characteristics of the second detection signals that are substantially consistent within the second detection signals; calculating an indication of the oxygen saturation characteristic of the user in response to the first and second detection signals; detecting cardiac cycle durations that are based upon the first and second detection signals; detecting electrocardiography based cardiac cycle durations; and evaluating a quality of the indication of the oxygen saturation characteristic of the user by comparing the first waveform template to the electrocardiography based cardiac cycle durations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A non-transitory computer readable medium that stores instructions that once executed by a computerized device cause the computerized device to execute the steps of:
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receiving first and second detection signals and electrocardiograph signals; wherein the first detection signals result from an illumination by infrared pulses of a sternal angle of a user, and being detected by an oxygen saturation sensor included in a device that is removably attached to a user; wherein the second detection signals result from an illumination by visible light pulses detected by the oxygen saturation sensor, of the sternal angle of a user; wherein the electrocardiograph signals are detected by an electrocardiography sensor that is included in the device; generating a first waveform template that is responsive to the first detection signals; generating a second waveform template that is responsive to the second detection signals; calculating an indication of the oxygen saturation characteristic of the user in response to the first and second detection signals; detecting cardiac cycle durations that are based upon the first and second detection signals; detecting electrocardiography based cardiac cycle durations using an electrocardiography sensor; and evaluating a quality of the indication of the oxygen saturation characteristic of the user by comparing the first waveform template, and the second waveform template to the cardiac cycle'"'"'s durations and to the electrocardiography based cardiac cycle durations.
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18. A medical device that comprises a processor that is configured to receive first and second detection signals and electrocardiograph signals and having an illumination source for generating infrared and visible light pulses and having an electrocardiograph sensor for detecting electrocardiography based cardiac cycle durations;
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wherein the first detection signals result from an illumination by infrared pulses, by an oxygen saturation sensor included in the device which is removably attached to a user, of a sternal angle of a user; wherein the second detection signals result from an illumination, by the oxygen saturation sensor, of the sternal angle of a user; wherein the electrocardiograph signals may be detected by the electrocardiography sensor included in the device; (ii) generate a first waveform template responsive to the first detection signals; (iii) generate a second waveform template responsive to the second detection signals; (iv) calculate an indication of the oxygen saturation characteristic of the user in response to the first and second detection signals; (v) detect cardiac cycle durations based upon the first and second detection signals; (vi) using the electrocardiography sensor detect electrocardiography based cardiac cycle durations; and (vii) evaluate a quality of the indication of the oxygen saturation characteristic of the user in response to comparing the first waveform template, and the second waveform template to the cardiac cycle'"'"'s durations and to the electrocardiography based cardiac cycle durations.
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Specification