Methods and systems for analysis of physiological signals
First Claim
1. A computer-readable memory including structured data representing physiological events reflected in input signals from a monitored subject, wherein the structured data comprises:
- at least one instance of a data-structure representing characteristics of an elementary-type physiological event, wherein an elementary-type physiological event is defined in dependence on a portion of the input signal, and at least one instance of a data-structure representing characteristics of a primary-type physiological event, wherein the primary-type event is defined in dependence on one or more elementary-type events.
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Abstract
Systems and methods are provided for processing and analyzing signals reflecting, physiologic processes and events in a monitored subject, especially cardio-pulmonary signals. The input signals are analyzed by in a physiological domain by creating structured data representing the physiological events reflected in the signals. Preferably, first, primitive event objects are created representing physiologically-significant portions of these input signals; second, the primitive event objects are grouped into primary event objects representing actual physiologic processes and events. Next, all objects are stored in databases, and organized in containers for efficient searching. Information may be retrieved by creating view objects which associate physiologic event objects having selected properties specified directly in physiological terms. This invention includes methods for performing the above analysis, systems and program products for carrying out these methods, and databases configured with the stored objects and views.
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Citations
83 Claims
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1. A computer-readable memory including structured data representing physiological events reflected in input signals from a monitored subject, wherein the structured data comprises:
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at least one instance of a data-structure representing characteristics of an elementary-type physiological event, wherein an elementary-type physiological event is defined in dependence on a portion of the input signal, and at least one instance of a data-structure representing characteristics of a primary-type physiological event, wherein the primary-type event is defined in dependence on one or more elementary-type events. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 70, 71, 72, 73)
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21. A computer-readable memory including structured data representing physiological events generated by at least a first and a second physiological process, the physiological events being reflected in input signals from a monitored subject, wherein the structured data comprises:
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at least one instance of a data-structure representing characteristics of a primary-type physiological event generated by the first process that is defined in dependence on one or more corresponding elementary-type physiological events, wherein the elementary-type events are defined in dependence on portions of the input signal, at least one instance of a data-structure representing characteristics of a primary-type physiological event generated by the second process that is defined in dependence on one or more elementary-type physiological events, wherein the elementary-type events are defined in dependence on portions of the input signal, wherein at least one primary-type data-structure instance comprises data identifying at least one other primary-type data-structure instance, the primary-type data-structure instances representing primary-type events of the first and second processes that are physiologically associated. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A computer-implemented method for analyzing input signals from a monitored subject, the input signals reflecting physiological events in the subject, the method comprising:
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recognizing at least one elementary-type physiological event in dependence on a portion of the input signal, creating at least one instance of an elementary-type data-structure representing characteristics of the elementary-type event, recognizing at least one primary-type of physiological event from one or more contiguous elementary-type events, and creating at least one instance of a primary-type data-structure representing characteristics of a primary-type event. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 74, 75, 76, 77, 78, 79, 80, 82)
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50. A computer-implemented method for analyzing input signals from a monitored subject, the input signals reflecting physiological events in the subject generated by at least a first and a second physiological process, the method comprising:
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recognizing at least one primary-type physiological event of the first process defined in dependence on one or more corresponding elementary-type physiological events, wherein the elementary-type events are defined in dependence on portions of the input signal, creating at least one instance of a first-process data-structure representing characteristics of the recognized primary-type event recognizing at least one primary-type physiological event of the second process defined in dependence on one or more corresponding elementary-type physiological events, wherein the elementary-type events are defined in dependence on portions of the input signal, creating at least one instance of a second-process data-structure representing characteristics of the recognized primary-type event wherein at least one primary-type data-structure instance comprises data identifying at least one other primary-type data-structure instance, the primary-type data-structure instances representing primary-type events of the first and second processes that are physiologically associated. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 81, 83)
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Specification