Esophageal Impedance Data Quantitation and Visualization
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Solution Overview
Problem
Current methods for measuring and analyzing pressure and impedance data in the esophagus during swallowing events lack effective quantitation and visualization tools to accurately estimate gastroenterology tract parameters, making it difficult to differentiate normal from abnormal movement and monitor disease progression.
Innovation Solution
A system and method using a high-resolution manometry catheter to measure pressure and impedance, which processes data to calculate cross-sectional area, work done, and segmental compliance of the esophagus, displaying this information in graphical and three-dimensional formats to assist clinicians in diagnosing and monitoring esophageal health.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pressure and impedance measurements are taken during swallowing events, then data is obtained for analyzing esophageal movement, but the data lacks effective quantitation and visualization tools to accurately estimate gastroenterology tract parameters
Solution Approach 1:
The patent introduces an intermediary processing system that transforms raw pressure and impedance measurements into meaningful quantified parameters. The system uses intermediate calculations involving bolus volume, cross-sectional area derivations, and integrated work computations to bridge the gap between raw measurements and clinically useful parameters, thereby improving measurement precision without requiring direct complex visualization tools at the measurement stage
Solution Approach 2:
The patent replaces traditional mechanical measurement approaches with computational methods. Instead of using complex mechanical devices to directly measure esophageal parameters, the system uses mathematical models and algorithms to compute cross-sectional area, work, and compliance from pressure and impedance data, reducing mechanical complexity while improving quantitation accuracy
2Reliability
If raw pressure and impedance data are collected, then measurement data is obtained, but it is difficult to differentiate normal from abnormal movement and monitor disease progression
Solution Approach 1:
The patent transforms raw pressure and impedance data into changed parameters that are more meaningful for clinical interpretation. By calculating derived parameters such as cross-sectional area, work done by esophageal segments, and segmental compliance, the system changes the parameter space to make differentiation between normal and abnormal movement more reliable and easier to detect
Solution Approach 2:
The patent implements feedback mechanisms where calculated parameters are used to provide insights back to the clinical analysis process. The system computes work done by different esophageal segments and provides feedback on their relative contributions, enabling clinicians to better differentiate normal from abnormal patterns and monitor disease progression through quantitative feedback metrics
3Measurement precision
If cross-sectional area and work calculations are performed from impedance and pressure data, then quantitation of esophageal parameters is improved, but the device and method complexity increases
Solution Approach 1:
The patent divides the esophagus into multiple segments and calculates parameters for each segment independently. This segmentation allows the complex calculation task to be broken down into manageable parts, where each segment's work, compliance, and cross-sectional area are computed separately based on local pressure and impedance measurements, improving precision while making the overall system complexity more manageable through modular processing
Solution Approach 2:
The patent creates a universal calculation framework that can compute multiple parameters (cross-sectional area, work, compliance) from the same set of pressure and impedance measurements. This multi-functional approach allows a single processing system to derive various esophageal parameters without requiring separate specialized devices for each measurement type, thereby improving measurement precision while controlling device complexity through universal tool development
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
Enables precise quantitation and visualization of esophageal parameters, allowing for the differentiation of normal and abnormal physiology, aiding in disease diagnosis and treatment evaluation, and providing a reference profile for comparing patient work profiles.
Implementation Method 1
receiving data measured by an impedance and high resolution manometry catheter in an esophagus, the data representative of a pressure and/or an impedance associated with a swallowing event
Implementation Method 2
the pressure exerted by the esophagus may be measured as the material moves through the center of the esophagus
Data Source
AI summary
A method for characterization of a patient's esophagus may include receiving data measured by an impedance and high resolution manometry catheter in an esophagus in which the data may be representative of a pressure and/or an impedance associated with a swallowing event. The method may also include determining a cross-sectional area of the esophagus based on the received data and a pre-determined amount of a bolus consumed during the swallowing event. Systems and apparatus for characterizing a patient's esophagus may also include measuring data with a high resolution manometry catheter to determine the cross-sectional area, work, and compliance of the esophagus as a function of time during a swallowing event. Averaged data may establish a database of normal values for work done and compliance and allow for comparison of a patient to normal pathology.