# US 11,026,595 B2 · Feature trend display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,026,595 B2 - Document ID: US11026595B2 - Status: Granted - Kind: B2 - Application number: 14/171,128 - Filed: 2014-02-03 - Published: 2015-08-06 - Granted: 2021-06-08 - Earliest claimed: 2014-02-03 - Assignees: Oridion Medical 1987 Ltd. - Applicants: Oridion Medical 1987 Ltd. - Inventors: Joshua Lewis Colman; Michal Ronen - Web page: https://patentgrep.com/patent/US11026595B2 ## CPC - A61B 5/082: {Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath (A61B5/083, A61B5/091 take precedence)} - A61B 5/0836: {Measuring rate of CO2 production} - A61B 5/7235: {Details of waveform analysis (detecting specific parameters of the electrocardiograph cycle A61B5/349)} - A61B 5/7275: {Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor} - A61B 5/742: {using visual displays (displays for heart-related electrical signals, e.g. ECG, A61B5/339)} - A61B 5/743: {Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract Provided are systems and method for identifying, generating and displaying a trend of one or more medical waveform related features. ## Claims ### Claim 1 A medical monitoring system for identifying a trend of one or more waveform related features, the system comprising: a capnograph configured to measure a first medical parameter of a patient and to produce a train of moving waveforms of the first medical parameter over a time period; a processor configured to, in real time: analyze the set of the train of waveforms and one or more shape or scale factors thereof to provide a single waveform representative of one breath; identify and extract two or more features from the single waveform, wherein the two or more features relate to the set of the train of moving waveforms produced by the capnograph from a time range within the time period; and generate a first trend and a second trend of the two or more features based on the single waveform, wherein the first trend is associated with a first feature of the two or more features and the second trend is associated with a second feature of the two or more features that is different from the first feature; and a display configured to display the first trend and the second trend by displaying a shape corresponding to both the first trend and the second trend, wherein a first shape feature of the shape is selected based on the first trend and a second shape feature of the shape is selected based on the second trend. ### Claim 2 (depends on 1) The system of claim 1, wherein the first medical parameter of the patient is CO2 in exhaled breath, and the second medical parameter is the patient's blood pressure, depth of sleep, or desaturation. ### Claim 3 (depends on 1) The system of claim 1, wherein the train of moving waveforms comprises CO2 related waveforms. ### Claim 4 (depends on 1) The system of claim 1, wherein the two or more features are selected from shape factors and scale factors. ### Claim 5 (depends on 4) The system of claim 4, wherein the shape factors comprise up rising slope of a CO2 waveform; the extent of the up-rising slope, the shape of the up-rising slope, the down-stroke slope of a CO2 waveform, the extent of the down stroke slope, or the shape of the down stroke slope, or any combinations thereof. ### Claim 6 (depends on 4) The system of claim 4, wherein the scale factors comprise width of the waveform, time between sections of the waveform, or amplitude, or any combinations thereof. ### Claim 7 (depends on 1) The system of claim 1, wherein the two or more features comprises EtCO2, changes in EtCO2, a slope of the increase in the CO2 concentration, a change in a slope of the increase in the CO2 concentration, time to rise to a predetermined percentage of a maximum value of CO2 concentration, a change in time to rise to a predetermined percentage of a maximum value of CO2 concentration, an angle of rise to a predetermined percentage of a maximum value of CO2 concentration, a change in an angle of rise to a predetermined percentage of a maximum value of CO2 concentration, breath to breath correlation, a change in breath to breath correlation, a CO2 duty cycle, a change in CO2 duty cycle, minute ventilation, or a change in minute ventilation, or any combinations thereof. ### Claim 8 (depends on 1) The system of claim 1, wherein the first trend and the second trend are indicative of the health condition of the patient. ### Claim 9 (depends on 1) The system of claim 1, wherein the shape is a column and wherein the first feature is a height or width of the column and the second feature is a color or fill of the column. ### Claim 10 (depends on 1) The system of claim 1, wherein the shape is a pillar or column and wherein the first feature is a height of the column and the second feature is a width of the column. ### Claim 11 (depends on 1) The system of claim 1, wherein the shape is a column and wherein the first feature is selected based on an EtCO2 concentration. ### Claim 12 (depends on 1) The system of claim 1, wherein the processor is configured to cause display of a second shape that corresponds to a second time range within the time period. ### Claim 13 (depends on 1) The system of claim 1, wherein the shape is displayed at a location corresponding to the time range on an x-axis of a plot and wherein a y-axis of the plot corresponds to units of the first trend. ### Claim 14 (depends on 1) The system of claim 1, wherein the processor is configured to produce the single waveform from analysis of one or more shape or scale factors of sequential waveforms in the set of the train of moving waveforms. ### Claim 15 (depends on 14) The system of claim 14, wherein the one or more shape or scale factors are derived from respective shape, dimension, rate or frequency, or reoccurrences in the sequential waveforms in the set of the train of waveforms. ### Claim 16 (depends on 1) The system of claim 1, wherein the display is configured to display the single waveform, the first trend, and the second trend. ### Claim 17 (depends on 1) The system of claim 1, wherein the display is configured to display one or more waveforms in the set of the train of moving waveforms and the single waveform.