Method for displaying superimposed heartbeat waveforms
First Claim
1. A method for displaying superimposed heartbeat waveforms contained in stored ECG data comprising the steps of:
- defining a data window having a length substantially equal to a predetermined number of successive heartbeats contained in the stored ECG data;
advancing the window across the data in one heartbeat increments so that each window position contains the predetermined number of heartbeats;
displaying the heartbeats contained in the window superimposed over one another; and
varying the predetermined number of successive heartbeats contained in the window.
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Accused Products
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. A plurality of successive heartbeats are written to the display with their R-waves aligned. As the next new heartbeat in chronological order is displayed the longest-displayed heartbeat is removed. The total number of heartbeats displayed therefore remains constant. The user can select the total number of heartbeats, between one and five, to be displayed at one time. In one mode, a heartbeat is added, and removed, during each screen refresh cycle. In another mode, the user can step the display in either reverse or forward chronological order one step at a time.
37 Citations
6 Claims
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1. A method for displaying superimposed heartbeat waveforms contained in stored ECG data comprising the steps of:
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defining a data window having a length substantially equal to a predetermined number of successive heartbeats contained in the stored ECG data; advancing the window across the data in one heartbeat increments so that each window position contains the predetermined number of heartbeats; displaying the heartbeats contained in the window superimposed over one another; and varying the predetermined number of successive heartbeats contained in the window. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification