Combined Oxygenation Parameter Display for Neonatal Monitoring
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Solution Overview
Problem
Current methods for displaying patient oxygenation data in medical settings, particularly for neonatal care, are not effective in providing clear and concise information, leading to potential instability detection challenges.
Innovation Solution
A system and method for displaying combined oxygenation parameters, including regional oxygen saturation (rSO2) and arterial oxygen saturation (SpO2), with fractional tissue oxygenation extraction (FTOE) data, plotted directly against each other, along with historical data and alarm thresholds, to facilitate easy clinician interpretation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple oxygenation parameters (rSO2, SpO2, FTOE) are displayed separately as time series, then each parameter can be monitored individually, but the overall oxygenation status becomes difficult to interpret quickly
Solution Approach 1:
The patent combines multiple oxygenation parameters (rSO2, SpO2, FTOE) into a single unified display showing their relationships. This merging allows clinicians to assess overall oxygenation status at a glance rather than interpreting multiple separate time series, directly resolving the contradiction between information clarity and display complexity.
2Reliability
If detailed oxygenation data is displayed, then comprehensive monitoring is achieved, but quick detection of instability becomes more difficult
Solution Approach 1:
The patent employs color-coded regions and visual indicators on the display to highlight instability conditions and threshold crossings. This allows clinicians to quickly detect oxygenation instability at a glance while maintaining access to detailed underlying data, resolving the contradiction between monitoring accuracy and detection speed.
3Loss of information
If traditional time series display is used, then historical trends are visible, but relative stability perception is impaired
Solution Approach 1:
The patent transitions from traditional one-dimensional time series displays to a multi-dimensional visualization that plots relationships between parameters (e.g., rSO2 versus SpO2) with historical data represented as trajectories or loci. This dimensional transformation enables clinicians to perceive relative stability more easily while preserving historical trend information.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for improved perception of patient oxygen stability over time, with visual and numerical indicators, and alarms when thresholds are crossed, enhancing clinical decision-making.
Implementation Method 1
One technique for monitoring certain physiological characteristics of a patient uses attenuation of light to determine physiological characteristics of a patient. This is used in pulse oximetry
Implementation Method 2
A signal representing light intensity versus time or a mathematical manipulation of this signal (e.g., a scaled version thereof, a log taken thereof, a scaled version of a log taken thereof, etc.) may be referred to as the photoplethysmograph (PPG) signal
Implementation Method 3
For SpO2, red and infrared (IR) wavelengths may be used because it has been observed that highly oxygenated blood will absorb relatively less Red light and more IR light than blood with a lower oxygen saturation. By comparing the intensities of two wavelengths at different points in the pulse cycle, it is possible to estimate the blood oxygen saturation of hemoglobin in arterial blood
Data Source
AI summary
Methods and systems for displaying patient oxygenation for a neonatal and other settings are described, and in particular displaying oxygenation parameters as an overall informative mapping of oxygenation of the patient. In exemplary embodiments, such overall informative mapping of oxygenation includes display of combined oxygenation parameters, including regional oxygen saturation (rSO2) and arterial oxygen saturation (SpO2).