US5224486A
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Method and apparatus for classifying heartbeat waveforms
Assignee: Koninklijke Philips NV
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Filing: 1992-02-28
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Granted: 1993-07-06
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Expires: 2012-02-28
Abstract
Abstract A computer controls a video display having a display screen for displaying ECG heartbeats superimposed over one another. The ECG data is collected during Holter monitoring and stored in a memory. The Holter monitor preliminarily classifies each beat to a morphology. A representative sample of each morphology is presented in a display window. Each sample can be overlaid with any other selected sample, in different colors, in a compare window having an enlarged scale from the display windows. After comparison, different morphologies can be merged and a selected beat classification can be reclassified to another morphology.
Inventors
- 👤 David J. Lerman
- 👤 Collin M. Portnuff
- 👤 Matthew S. Glei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:52
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/72; A61B5/7235; A61B5/7264; A61B5/24; A61B5/316; A61B5/318; A61B5/339; G; G16; G16H; G16H50/00; G16H50/20
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
58 words
A method for classifying heartbeat waveforms contained in stored ECG data comprising the steps of: displaying a heartbeat waveform in each of a plurality of display windows; selecting two of the display windows; displaying the heartbeat waveforms in the selected display windows superimposed in a compare window; and classifying the heartbeat waveform in one of the selected windows.
Claim 2
Independent Claim
58 words
A method for classifying heartbeat waveforms contained in stored ECG data comprising the steps of: displaying a heartbeat waveform in each of a plurality of display windows; selecting two of the display windows; displaying the heartbeat waveforms in the selected display windows superimposed in a compare window; and classifying the heartbeat waveform in one of the selected windows.
Claim 3
Dependent Claim
42 words
The method of claim 1 wherein the step of displaying the heartbeat waveforms in the selected display windows superimposed in a compare window comprises the step of displaying one of the waveforms in one color and the other waveform in another color.
Claim 4
Dependent Claim
55 words
The method of claim 1 wherein the heartbeat waveforms displayed in the display windows are each representative of a class of similar heartbeat waveforms and wherein the step of classifying the heartbeat waveform in one of the selected windows comprises the step of merging the classes represented by the heartbeat waveforms in the selected windows.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein said method further includes the step of selecting a third display window.
Claim 6
Dependent Claim
32 words
The method of claim 1 wherein the step of selecting two of the display windows comprises the steps of placing a cursor on the selected display window and generating an operator signal.
Claim 7
Dependent Claim
60 words
The method of claim 1 wherein the heartbeat waveforms displayed in the display windows are each representative of a class of similar heartbeat waveforms and wherein the step of classifying the heartbeat waveform in one of the selected windows comprises the step of changing the classification of the class represented by the heartbeat waveform in one of the selected windows.
Claim 8
Dependent Claim
36 words
The method of claim 1 wherein the step of displaying the heartbeat waveforms in the selected display windows superimposed in a compare window comprises the step of displaying the heartbeat waveforms with their R waves aligned.
Claim 9
Dependent Claim
45 words
The method of claim 1 wherein the step of displaying the heartbeat waveforms in the selected display windows superimposed in a compare window further comprises the step of displaying the waveforms in the compare window in an enlarged scale from that of the display windows.
Claim 10
Independent Claim
73 words
A method for examining ECG data of the type containing heartbeat waveforms classified into a plurality of morphologies comprising the steps of: identifying a heartbeat waveform representative of each morphology; displaying each identified heartbeat waveform in a different display window; selecting a plurality of the display windows; displaying the heartbeat waveforms in the selected display windows superimposed in a compare window; and reclassifying the morphologies represented by the waveforms in the compare window.
Claim 11
Independent Claim
73 words
A method for examining ECG data of the type containing heartbeat waveforms classified into a plurality of morphologies comprising the steps of: identifying a heartbeat waveform representative of each morphology; displaying each identified heartbeat waveform in a different display window; selecting a plurality of the display windows; displaying the heartbeat waveforms in the selected display windows superimposed in a compare window; and reclassifying the morphologies represented by the waveforms in the compare window.
Claim 12
Dependent Claim
34 words
The method of claim 9 wherein the step of displaying the heartbeat waveforms in the selected display windows superimposed in a compare window comprises the step of displaying the heartbeat waveforms in different colors.
Claim 13
Dependent Claim
49 words
The method of claim 9 wherein the step of reclassifying the morphology represented by one of the waveforms in the compare window comprises the step of merging the morphology represented by one of the waveforms in the compare window with the morphology represented by another of the displayed waveforms.
Claim 14
Dependent Claim
34 words
The method of claim 9 wherein the step of selecting a plurality of the display windows comprises the step of placing a cursor on each selected window and substantially simultaneously generating an operator signal.
Claim 15
Dependent Claim
40 words
The method of claim 9 wherein the step of reclassifying the morphology represented by one of the waveforms in the compare window comprises the step of changing the class of the morphologies represented by the waveforms in the compare window.
Claim 16
Dependent Claim
37 words
The method of claim 9 wherein the step of displaying the heartbeat waveforms in the selected display windows superimposed in a compare window comprises the step of displaying the heart beat waveforms with their R waves aligned.
Claim 17
Dependent Claim
46 words
The method of claim 9 wherein the step of displaying the heartbeat waveforms in the selected display windows superimposed in a compare window comprises the step of displaying the heart beat waveforms in the compare window in an enlarged scale from that of the display windows.
Claim 18
Dependent Claim
74 words
Apparatus for classifying heartbeat waveforms contained in stored ECG data comprising: a plurality of display windows for displaying heartbeat waveforms; means for displaying a heartbeat waveform in each of the display windows; means for selecting two of the display windows; a compare window for displaying heartbeat waveforms; means for displaying the heartbeat waveforms in the selected display windows superimposed in the compare window; and means for classifying the heartbeat waveforms in the compare window.
Claim 19
Dependent Claim
74 words
Apparatus for classifying heartbeat waveforms contained in stored ECG data comprising: a plurality of display windows for displaying heartbeat waveforms; means for displaying a heartbeat waveform in each of the display windows; means for selecting two of the display windows; a compare window for displaying heartbeat waveforms; means for displaying the heartbeat waveforms in the selected display windows superimposed in the compare window; and means for classifying the heartbeat waveforms in the compare window.
Claim 20
Dependent Claim
42 words
The apparatus of claim 16 wherein said means for displaying the heartbeat waveforms in the selected display windows superimposed in the compare window further comprises means for displaying one of the waveforms in one color and the other waveform in another color.
Claim 21
Dependent Claim
25 words
The apparatus of claim 16 wherein said means for selecting two of the display windows comprises means for positioning a cursor on said display windows.
Claim 22
Dependent Claim
17 words
The apparatus of claim 16 wherein said compare window has a larger scale than said display windows.
Claim 23
Dependent Claim
36 words
The apparatus of claim 16 wherein said means for displaying the heartbeat waveforms in the selected display windows superimposed in the compare window further comprises means for displaying the heartbeat waveforms with their R waves aligned.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-05 | 1997-01-04 | 1997-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-05 | 2001-01-04 | 2001-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-05 | 2005-01-04 | 2005-07-06 | $7700.00 | Window Closed / Lapsed |