Baseline Pressure Instability Correction in Medical Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current pressure sensors used for measuring intracranial pressure (ICP) and arterial blood pressure (ABP) in humans experience baseline pressure instability due to inherent properties and measurement technology, leading to erroneous readings and potential mismanagement of patients, with existing systems lacking means to assess or correct for this instability.
Innovation Solution
A method and system for assessing and correcting baseline pressure instability in pressure sensors, involving the identification of single pressure waves, computation of delta parameters, and creation of baseline pressure indicator plots to detect deviations from thresholds, enabling alerts and corrections for mean pressure alterations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure sensors are used for continuous monitoring of ICP and ABP, then patient surveillance capability is improved, but baseline pressure instability occurs causing erroneous readings
Solution Approach 1:
The system performs preliminary assessment of baseline pressure stability by analyzing pressure wave parameters (amplitude, area, timing) before relying on mean pressure readings for clinical decisions. This preliminary analysis detects instability patterns that would otherwise compromise measurement accuracy.
Solution Approach 2:
The system continuously monitors pressure wave characteristics and provides feedback on baseline stability through stability indices and visual displays. When instability is detected, the system alerts clinicians and can pause mean pressure calculations, creating a feedback loop that prevents erroneous readings from being acted upon.
2Productivity
If mean pressure values are calculated for clinical decision-making, then patient management efficiency is improved, but baseline pressure instability leads to incorrect management decisions
Solution Approach 1:
Before presenting mean pressure values for clinical decision-making, the system performs preliminary stability assessment by analyzing multiple pressure wave parameters. Only when stability criteria are met does the system present mean pressure values, ensuring that management decisions are based on reliable data.
Solution Approach 2:
The system provides continuous feedback on baseline stability through stability indices and visual indicators. When instability is detected, the system alerts clinicians and can pause mean pressure calculations, preventing incorrect management decisions while maintaining efficient patient monitoring.
3Duration of action of moving object
If pressure sensors operate continuously in vivo, then continuous monitoring capability is improved, but spontaneous baseline pressure variation occurs during measurements
Solution Approach 1:
The system performs preliminary assessment of baseline stability at regular intervals during continuous monitoring by analyzing pressure wave parameters. This periodic preliminary check detects drift or instability that develops over time, allowing the system to maintain accurate measurements throughout extended monitoring periods.
Solution Approach 2:
The system provides continuous feedback on baseline stability through stability indices and visual displays that update in real-time during monitoring. When instability is detected during continuous operation, the system alerts clinicians and can pause mean pressure calculations, maintaining measurement integrity throughout the monitoring duration.
4Ease of operation
If clinicians rely on mean ICP and ABP readings, then treatment decision-making is simplified, but erroneous readings cause compromised patient management
Solution Approach 1:
Before presenting mean pressure readings for treatment decisions, the system performs preliminary stability assessment using multiple pressure wave parameters. This preliminary check ensures that simplified mean pressure values are only presented when baseline stability is confirmed, maintaining safety while preserving ease of use.
Solution Approach 2:
The system provides continuous feedback on baseline stability through stability indices and visual indicators that update in real-time. When instability is detected, the system alerts clinicians and can pause mean pressure calculations, preventing erroneous readings from compromising patient management while keeping the interface simple and easy to interpret.
Data Source
AI summary
Described herein are systems, devices, and methods to assess and correct for instability of baseline pressure of pressure sensors applied for measuring pressures inside a human body or body cavity, such as intracranial pressure (ICP) and arterial blood pressure (ABP). The present disclosure includes systems for assessing instability of baseline pressure by computing differences in single pressure wave parameters between single pressure waves, calculating pressure stability levels, determining differences between pressure stability levels and creating baseline pressure indicator plots. The baseline pressure indicator plots define instability of baseline pressure as a function of defined thresholds applied to parameters of the pressure stability levels. The disclosure also provides means for correcting mean pressure caused by baseline pressure instability.