Method and Apparatus for Acquiring and Analyzing Data Relating to a Physiological Condition of a Subject
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Accused Products
Abstract
A method for locating and marking points on a waveform includes providing data corresponding to electrocardiogram and ballistocardiogram waveforms correlated in time, searching the data to locate points corresponding to cardiac events, a location of each of the points corresponding to cardiac events being defined by a rule set, identifying and storing the points corresponding to cardiac events and outputting a visual representation including the points corresponding to cardiac events marked on the electrocardiogram and ballistocardiogram waveforms.
47 Citations
57 Claims
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1-9. -9. (canceled)
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10. An apparatus for acquiring and analyzing data relating to a physiological condition of a subject, said apparatus comprising:
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a sensor device for coupling to said subject, said sensor device for detecting four analog signals, one of said four analog signals being an electrocardiograph signal and three of said four analog signals being ballistocardiograph signals, converting said four analog signals to digital signals and transmitting said digital signals; and a computer including a processor in communication with said sensor device, said computer configured for receiving and analysing data representative of said digital signals and for generating a report relating to said physiological condition of said subject. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for acquiring and analyzing data relating to a physiological condition of a subject, said method comprising:
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detecting four analog signals using a sensor device coupled to said subject, one of said four analog signals being an electrocardiograph signal and three of said four analog signals being ballistocardiograph signals, converting said four analog signals into digital signals; transmitting data representative of said digital signals to a computer; and performing an analysis of said data representative of said digital signals. - View Dependent Claims (35, 36, 37, 38, 39)
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40. A sensor device for acquiring and transmitting signals relating to a physiological condition of a subject, said sensor device comprising:
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a housing including a contact surface for coupling to a subject; a three-axis accelerometer provided in said housing, said three-axis accelerometer for sensing vibrations of a chest wall of said subject; conductive strips provided in said contact surface of said housing, said conductive strips being in communication with electrocardiograph lead circuitry for sensing cardiac electrical activity; an analog to digital converter in communication with said three-axis accelerometer and said electrocardiograph lead circuitry, said analog to digital converter for receiving four analog signals, one of said four analog signals being an electrocardiograph signal and three of said four analog signals being ballistocardiograph signals corresponding to each axis of said three-axis accelerometer, and for converting said four analog signals into digital signals; a power source; and a transmitter provided in communication with said analog to digital converter for transmitting said digital signals. - View Dependent Claims (41, 42, 43)
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44. A method for locating and marking points on a waveform comprising:
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providing data corresponding to electrocardiogram and ballistocardiogram waveforms correlated in time; searching said data to locate points corresponding to cardiac events, a location of each of said points corresponding to cardiac events being defined by a rule set; identifying said points corresponding to cardiac events; and outputting a report comprising a representation of said points corresponding to cardiac events located on said electrocardiogram and ballistocardiogram waveforms. - View Dependent Claims (45, 46, 47, 48)
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49. A method for locating and marking points on a waveform comprising:
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providing electrocardiogram and ballistocardiogram waveform data correlated in time and extending for at least two heart beats, one of said at least two heart beats being an annotated heart beat having cardiac events identified thereon, said cardiac events including a reference event located on an electrocardiogram waveform; generating a template based on said annotated heart beat, said template including time intervals measured from said reference event to one or more other identified cardiac events; and locating said reference event on one or more heart beats other than said annotated heart beat and applying said template to determine locations of said other cardiac events thereon. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56, 57)
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Specification