Mechanical function marker channel for cardiac monitoring and therapy control
First Claim
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1. A method of obtaining information related to a cardiac cycle comprising:
- receiving a physiological data signal from a mechanical characteristic sensor, where the physiological data signal is indicative of a mechanical cardiac function;
deriving cardiac event markers from attributes of the physiological data signal;
generating a cardiac event marker signal using the cardiac event markers, the cardiac event marker signal identifying cardiac cycle timing characteristics, wherein the cardiac event marker signal includes an indication of a duration of individual cardiac events of the cardiac cycle; and
annotating the cardiac event marker signal with magnitude information associated with the mechanical function for graphical display of the cardiac event maker signal and the magnitude information.
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Abstract
The implantable medical device (IMD) system disclosed here utilizes one or more cardiac sensors that measure mechanical characteristics of the heart, such as left ventricular acceleration or right ventricular pressure. The raw sensor data is collected and processed by the IMD, which derives one or more mechanical event marker signals from features, traits, and characteristics of the sensor data waveforms. The mechanical event marker signals are wirelessly transmitted to an external monitor device for display.
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Citations
38 Claims
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1. A method of obtaining information related to a cardiac cycle comprising:
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receiving a physiological data signal from a mechanical characteristic sensor, where the physiological data signal is indicative of a mechanical cardiac function; deriving cardiac event markers from attributes of the physiological data signal; generating a cardiac event marker signal using the cardiac event markers, the cardiac event marker signal identifying cardiac cycle timing characteristics, wherein the cardiac event marker signal includes an indication of a duration of individual cardiac events of the cardiac cycle; and annotating the cardiac event marker signal with magnitude information associated with the mechanical function for graphical display of the cardiac event maker signal and the magnitude information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An implantable medical device (IMD) comprising:
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a data collection module configured to obtain a physiological data signal indicative of mechanical cardiac functionality from a mechanical characteristic sensor; a data processing module coupled to the data collection module, the data processing module being configured to derive cardiac event markers from attributes of the physiological data signal, and to generate a cardiac event marker signal using the cardiac event markers, the cardiac event marker signal identifying cardiac cycle timing characteristics and an indication of a duration of individual cardiac events, and wherein the data processing module derives magnitude information associated with the mechanical cardiac functionality; and a communication module coupled to the data processing module, the communication module being configured to transmit the cardiac event marker signal and the magnitude information to a device external to the IMD. - View Dependent Claims (22, 23, 24, 25)
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26. An implantable medical device (IMD) system comprising:
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a data collection module configured to obtain a physiological data signal indicative of mechanical cardiac functionality; a data processing module coupled to the data collection module, the data processing module being configured to derive cardiac event markers from attributes of the physiological data signal, and to generate a cardiac event marker signal using the cardiac event markers, the cardiac event marker signal identifying cardiac cycle timing characteristics and durations of individual cardiac events, and wherein the data processing module derives magnitude parameters of the mechanical cardiac functionality; and a communication module coupled to the data processing module, the communication module being configured to transmit the cardiac event marker signal and magnitude parameters to devices external to the IMD; a mechanical characteristic sensor in communication with the IMD and configured to generate the physiological data signal in response to mechanical cardiac phenomena; and a monitor device in communication with the IMD, the monitor device being configured to receive the cardiac event marker signal from the communication module, and to display a graphical representation of the cardiac event marker signal, wherein the graphical representation of the cardiac event marker signal is annotated with magnitude parameters for the mechanical cardiac functionality. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
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35. A method for obtaining information related to a cardiac cycle, the method comprising:
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receiving a data signal from a mechanical characteristic sensor; obtaining a cardiac mechanical function marker signal that identifies mechanical events associated with the cardiac cycle, wherein the cardiac mechanical function marker signal is based on the data signal and includes duration information indicating the length of occurrence of individual cardiac events; obtaining an indication of magnitude of the mechanical cardiac functionality; and displaying a graphical representation of the cardiac mechanical function marker signal, wherein the graphical representation includes annotations of the magnitudes of the mechanical cardiac functionality. - View Dependent Claims (36, 37, 38)
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Specification