Method and apparatus for displaying lung sounds and performing diagnosis based on lung sound analysis
First Claim
1. A lung sound diagnostic system for use in analyzing lung sounds detected during at least one of the inspiration and expiration of a patient by a detection system for detecting lung sounds at at least six sites around the patient'"'"'s chest, the system comprising:
- means for receiving data corresponding to the lung sounds detected at each site; and
means, responsive to the received data, for generating a combinational pulmonary display including a first display element having a time domain plot of the lung sounds detected at each site during at least one of inspiration and expiration as a function of a first time scale, wherein the plot of lung sounds within the first element are simultaneously arranged in a vertical stack configuration.
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Abstract
A lung sound diagnostic system for use in collecting, organizing and analyzing lung sounds associated with the inspiration(s) and expiration(s) of a patient. The system includes a plurality of transducers that may be placed at various sites around the patient'"'"'s chest. The microphones are coupled to signal processing circuitry and A/D converters which digitize the data and preferably provides the digital data to a computer station. A data collection and organization program, executing on the computer station, organizes and formats the data into a combination display for display or printing. The combinational display includes at least two display elements. In a first display element, the data is shown for both inspiration and expiration combined in a first time scale. In a second display element, the data for inspiration and expiration are shown individually in a second time scale that is time-expanded relative to the first time scale. The system may also include application programs for detecting and classifying abnormal sounds. The resulting information may be displayed in a variety of formats to facilitate diagnosis. Additionally, the system may include an analysis program for comparing selected criteria corresponding to the detected abnormal sounds with predefined thresholds in order to provide a likely diagnosis.
44 Citations
19 Claims
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1. A lung sound diagnostic system for use in analyzing lung sounds detected during at least one of the inspiration and expiration of a patient by a detection system for detecting lung sounds at at least six sites around the patient'"'"'s chest, the system comprising:
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means for receiving data corresponding to the lung sounds detected at each site; and
means, responsive to the received data, for generating a combinational pulmonary display including a first display element having a time domain plot of the lung sounds detected at each site during at least one of inspiration and expiration as a function of a first time scale, wherein the plot of lung sounds within the first element are simultaneously arranged in a vertical stack configuration. - View Dependent Claims (2, 3, 4, 5)
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6. A lung sound diagnostic system comprising:
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one or more transducers for generating signals responsive to lung sounds at a plurality of sites around a patient'"'"'s chest;
means, coupled to the transducers, for determining an intensity of the sound at each site; and
means for generating a common display which displays the sound intensity at each of the sites, wherein the sound intensity determining means is configured to calculate a root-mean-square (RMS) value of the signal generated from each site, the display generating means generates one or more body plots, each body plot having a marker associated with each site, and the markers reflect the intensity of the calculated RMS value as calculated for that site. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A lung sound diagnostic system comprising:
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a plurality of transducers that may be placed at various sites around a patient'"'"'s chest for generating signals responsive to lung sounds;
means, coupled to the plurality of transducers, for determining whether the signals generated by the transducers meet predefined criteria associated with one or more adventitious lung sounds; and
means for generating a common display having at least one body plot with markers thereon that identify one or more patient chest locations at which the respective signals met the pre-defined criteria. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A method for collecting, organizing and displaying lung sound information during at least one of the inspiration and expiration of a patent comprising:
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placing a plurality of transducers at various sites around a patient'"'"'s chest for generating signals responsive to lung sounds;
receiving signals from the plurality of transducers;
determining whether the received signals meet predefined criteria associated with one or more adventitious lung sounds; and
generating a common display having at least one body plot with markers thereon that identify one or more patient chest location at which the respective signal met the predefined criteria.
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Specification