Automated Pupillary Light Reflex Analysis for Neurodevelopmental Screening

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current pupillary measurement techniques for assessing neurodevelopmental disorders and traumatic brain injuries lack specificity and quantitative output, and existing devices are inadequate in terms of storage solutions and algorithmic analysis capabilities.

Innovation Solution

A computer-implemented method utilizing a centralized server and cloud storage system for data collection and analysis of pupillary light reflex (PLR) data, including user interface modifications for calibration and interaction, anonymization of patient data, and generation of risk assessments for neurodevelopmental disorders such as autism spectrum disorder.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If personal measurement techniques are used for pupillary assessment, then the method is simple to perform, but the measurement precision and quantitative output are insufficient

Engineering Contradiction:
Improveease of pupillary assessmentVSAvoidquantitative output precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent replaces manual mechanical measurement techniques with an automated digital imaging and processing system. The system uses a camera to capture pupillary images and automatically processes them through algorithms to extract quantitative measurements, eliminating the need for manual measurement while providing precise numerical output.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs self-measurement and self-analysis through automated image capture and processing. The software automatically detects pupillary boundaries, calculates diameter measurements, and generates risk assessments without requiring manual intervention, enabling the system to serve itself in the measurement process.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If quantitative pupillary detection devices are developed, then measurement precision is improved, but device complexity and lack of storage/analysis capabilities worsen

Engineering Contradiction:
Improvequantitative pupillary measurement precisionVSAvoiddevice complexity and storage capability
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system is designed as a multi-functional integrated platform that combines pupillary measurement, data storage, algorithmic analysis, and risk assessment generation in a single device. The system can perform multiple functions including capturing images, storing patient data, processing measurements, and generating clinical reports, eliminating the need for separate devices for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the measurement device, storage system, and analysis software into a single integrated unit. The camera, database, processing algorithms, and user interface are combined in one system, simplifying the overall device architecture while maintaining comprehensive functionality for pupillary assessment.

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If comprehensive data collection and analysis are implemented, then diagnostic accuracy is improved, but loss of time for data processing increases

Engineering Contradiction:
Improvediagnostic assessment accuracyVSAvoiddata processing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary data processing and analysis automatically as data is collected. Algorithms continuously process pupillary measurements in real-time, pre-calculating risk assessments and generating intermediate results during the data collection phase, so that comprehensive analysis is already partially complete before final review is needed.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system provides real-time feedback during data collection by continuously analyzing pupillary measurements and updating risk assessments. This feedback mechanism allows clinicians to see preliminary results during the assessment process, reducing the perceived processing time and enabling immediate clinical decision-making.

Inventive Principle:
Principle #23Feedback

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

The solution provides a more accurate and quantitative assessment of neurodevelopmental disorders, enabling early detection and predictive analysis, improving patient compliance, and facilitating comprehensive diagnostic evaluations by integrating data from multiple sources and providing actionable insights for healthcare providers.

Implementation Method 1

collecting a data set from one or more data collection devices; and determining, via the data set and by the light levels, based at least in part by the pupillary change in measurement of the subject

Methodology Applied
Scientific EffectPupillary light reflex:

Data Source

PatentUS11804304B2Method and software for assessing neurodevelopmental abnormalities
Publication Date: 2023.10.31 SCHWEITZER ENGINEERING LABORATORIES INC
  • US11804304B2 patent drawing
  • US11804304B2 patent drawing
  • US11804304B2 patent drawing

AI summary

Neurological abnormalities are often discovered through observation by health care providers, and/or parent report. Many neurodevelopmental disorders such as ASD are purely identified through behavioral analysis, and cannot be screened for using a biomarker or quantitative stimulus-response test. Current screening tools contain subjective components based on parent report and clinician observation, vary in consistency of use across providers, and demands resources, knowledge, and access to skilled expertise. As a result, the only tests used today require lengthy and subjective behavioral analysis and often, miss or misidentify neurodevelopmental disorders contributing to a delayed diagnosis. The technology disclosed herein allow for a solution to this systemic problem.