System and method for detection of venous pulsation
First Claim
1. A method for detecting venous pulsation, comprising:
- receiving one or more signals from a sensor, the signals corresponding to absorption of light in a patient'"'"'s tissue;
determining a characteristic of the sensor;
performing a venous pulsation detection algorithm on the one or more signals, wherein the venous pulsation detection algorithm is performed at a sensitivity level based on the characteristic of the sensor; and
determining whether venous pulsation is present based on the performance of the venous pulsation detection algorithm.
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Accused Products
Abstract
In accordance with an embodiment of the present technique, there is provided methods and systems for detecting the presence of venous pulsation by adjusting the sensitivity of a detection algorithm based on a sensor characteristic and/or notifying a caregiver of the presence of venous pulsation by ceasing display of physiological parameters. An exemplary embodiment includes receiving one or more signals from a sensor, the one or more signals corresponding to absorption of light in a patient'"'"'s tissue; calculating one or more physiological parameters of the patient based on the one or more signals; displaying the patient'"'"'s physiological parameters; enabling detection of venous pulsation with variable sensitivity based on a location of the sensor; and suspending or terminating the display of the one or more of the patient'"'"'s physiological parameters when venous pulsation is detected.
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Citations
44 Claims
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1. A method for detecting venous pulsation, comprising:
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receiving one or more signals from a sensor, the signals corresponding to absorption of light in a patient'"'"'s tissue; determining a characteristic of the sensor; performing a venous pulsation detection algorithm on the one or more signals, wherein the venous pulsation detection algorithm is performed at a sensitivity level based on the characteristic of the sensor; and determining whether venous pulsation is present based on the performance of the venous pulsation detection algorithm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for preventing display of inaccurate measurements in the presence of venous pulsation, comprising:
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receiving one or more signals from a sensor, the one or more signals corresponding to absorption of light in a patient'"'"'s tissue; determining a characteristic of the sensor; calculating one or more physiological parameters of the patient based on the one or more signals; determining if venous pulsation is present based on the one or more signals, wherein determining if venous pulsation is present comprises performing a venous pulsation detection algorithm at a sensitivity level based on the characteristic of the sensor; and suspending or terminating a display of the one or more of the patient'"'"'s physiological parameters based on detection of venous pulsation. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A method, comprising:
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receiving a signal from a sensor indicating sensor type; enabling or disabling a function configured to detect venous pulsation based on the sensor type and determining whether the venous pulsation is present when the function is enabled; and subsequent to enabling or disabling the function, calculating one or more physiological parameters based on one or more received signals corresponding to absorption of light in a patient'"'"'s tissue. - View Dependent Claims (22, 23, 24, 25)
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26. A method for detecting venous pulsation, comprising:
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receiving one or more signals from a sensor, the one or more signals corresponding to absorption of light in a patient'"'"'s tissue; calculating one or more physiological parameters of the patient based on the one or more signals; displaying the patient'"'"'s physiological parameters; enabling a function configured to detect venous pulsation with variable sensitivity based on a location of the sensor and determining whether the venous pulsation is present when the function is enabled; and suspending or terminating the display of the one or more of the patient'"'"'s physiological parameters when venous pulsation is detected. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. A system for detecting venous pulsation, comprising:
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means for receiving one or more signals from a sensor, the signals corresponding to absorption of light in a patient'"'"'s tissue; means for determining a characteristic of the sensor; means for performing a venous pulsation detection algorithm on the one or more signals, wherein the venous pulsation detection algorithm is performed at a sensitivity level based on the characteristic of the sensor; and means for determining whether venous pulsation is present based on the performance of the venous pulsation detection algorithm. - View Dependent Claims (36, 37)
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38. A system for preventing display of inaccurate measurements in the presence of venous pulsation, comprising:
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means for receiving one or more signals from a sensor, the one or more signals corresponding to absorption of light in a patient'"'"'s tissue; means for determining a characteristic of the sensor; means for calculating one or more physiological parameters of the patient based on the one or more signals; means for performing a venous pulsation detection algorithm on the one or more signals, wherein the venous pulsation detection algorithm is configured to perform at a sensitivity level based on the characteristic of the sensor; means for determining if venous pulsation is present based on the one or more signals; and means for suspending or terminating a display of the one or more of the patient'"'"'s physiological parameters based on detection of venous pulsation. - View Dependent Claims (39)
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40. A system for detecting venous pulsation, comprising:
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means for receiving one or more signals from a sensor, the one or more signals corresponding to absorption of light in a patient'"'"'s tissue; means for calculating one or more physiological parameters of the patient based on the one or more signals; means for displaying the patient'"'"'s physiological parameters; means for enabling a function for detection of venous pulsation with variable sensitivity based on a location of the sensor and determining whether the venous pulsation is present when the function is enabled; and means for suspending or terminating the display of the one or more of the patient'"'"'s physiological parameters when venous pulsation is detected. - View Dependent Claims (41, 42)
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43. A system, comprising:
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means for receiving a signal from a sensor indicating sensor type; means for enabling or disabling a function for detection of venous pulsation based on the sensor type and determining whether the venous pulsation is present when the function is enabled; and means for calculating one or more physiological parameters, subsequent to enabling or disabling the function, based on one or more received signals corresponding to absorption of light in a patient'"'"'s tissue. - View Dependent Claims (44)
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Specification