Physiological Waveform Playback Synchronization for Visual Comparison
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Solution Overview
Problem
Existing medical devices struggle with displaying physiological parameters in a manner that allows for accurate comparison and interpretation, as the playback speeds of different waveforms often do not match, leading to distorted appearances and difficulty in visual analysis.
Innovation Solution
A system that adjusts the playback speed of waveforms relative to each other based on user settings, ensuring that the length of each waveform matches or differs appropriately to maintain visual consistency and facilitate comparison.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If different waveforms are displayed with their original playback speeds, then each waveform maintains its original time scale and characteristics, but the visual appearance becomes distorted and comparison between waveforms becomes difficult
Solution Approach 1:
The system dynamically adjusts the playback speed of each waveform based on user-selected reference waveforms. When a reference waveform is selected, other waveforms are automatically resynchronized to match its playback speed, creating a dynamic adaptation that facilitates visual comparison while preserving the ability to maintain accurate time scales when needed
Solution Approach 2:
The patent changes the playback speed parameter of waveforms based on user selection. By allowing users to select reference waveforms and automatically adjusting the playback speed of other waveforms to match, the system transforms fixed time scale displays into flexible, comparable visual representations without losing the underlying temporal accuracy
2Ease of operation
If playback speed of all waveforms is synchronized to match, then visual comparison becomes easier, but the ability to maintain individual waveform time scale characteristics is lost
Solution Approach 1:
The system provides dynamic control where users can select which waveforms serve as reference waveforms. This creates a flexible synchronization model where playback speeds are adjusted relative to user-chosen references rather than forcing uniform synchronization, allowing users to balance visual comparison needs against time scale preservation based on their specific analysis requirements
3Reliability
If multiple waveforms are displayed simultaneously with different lengths, then individual parameter characteristics are preserved, but the display becomes complex and interpretation becomes difficult
Solution Approach 1:
The system dynamically adjusts waveform display lengths by synchronizing playback speeds to a user-selected reference waveform. This creates a adaptive display where waveform lengths are automatically coordinated to match the reference, reducing visual complexity and improving interpretability while preserving the ability to see individual parameter characteristics through the synchronized time base
Data Source
AI summary
A device for displaying physiological parameter measurements is disclosed. The device displays a graphical user interface including playback of a plurality of waveforms. Each waveform of the plurality of waveforms representing a physiological parameter measured over a period of time. The plurality of waveforms including at least: a first waveform representing a first physiological parameter; and a second waveform representing a second physiological parameter. The device receives a settings adjustment on the graphical user interface. The device adjusts the playback of the second waveform relative to the first waveform based on the settings adjustment. The playback of the second waveform is adjusted to change a sweep speed of the second waveform such that a length of the second waveform differs from a length of the first waveform over the period of time.