Portable Neuro Attack Prevention Device for Early TIA Detection
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Solution Overview
Problem
Current diagnostic tools for transient ischemic attack (TIA) are inaccurate, inefficient, expensive, and lack portability, making them unsuitable for early detection and prediction of ischemic stroke, especially in acute settings and home environments.
Innovation Solution
A portable, non-invasive Neuro Attack Prevention (NAP) device that uses a multi-array sensor system with light emitting sources and detectors to measure cerebral hemodynamics, capable of providing low-cost, compact, and comprehensive hemodynamic assessments, enabling early detection of acute ischemic stroke and TIA through dynamic information gathering and data analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If MRI measurements are used for TIA diagnosis, then measurement precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces complex MRI mechanical imaging systems with a simplified optical detection system using light sources, photodetectors, and signal processing algorithms to achieve TIA diagnosis through optical property changes in brain tissue
Solution Approach 2:
The patent extracts and measures specific optical properties (absorption, scattering, fluorescence) from brain tissue to diagnose TIA, isolating the critical diagnostic information from the complex MRI imaging process
2Measurement precision
If MRI is used for TIA diagnosis, then measurement precision is improved, but portability deteriorates
Solution Approach 1:
The patent replaces bulky MRI mechanical systems with compact optical components including light sources, photodetectors, and portable signal processing units that can be deployed in diverse settings including home environments
Solution Approach 2:
The optical detection system is designed to be universally applicable across multiple settings (hospital, clinic, home) and can detect various cerebral conditions beyond TIA, including stroke and brain tumor detection
3Ease of operation
If TCD is used for blood flow measurement, then ease of operation is improved, but measurement precision deteriorates
Solution Approach 1:
The patent replaces ultrasound-based TCD mechanical systems with optical detection methods that directly measure tissue optical properties, enabling differentiation between ischemia and infarction states that TCD cannot distinguish
Solution Approach 2:
The patent introduces optical properties (absorption, scattering, fluorescence) as intermediary measurements that provide direct information about tissue state and metabolic conditions, bridging the gap between simple blood flow measurement and detailed tissue characterization
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 NAP device enhances diagnosis and prediction of ischemic events, allowing for earlier interventions and pre-hospital routing of patients to stroke centers, improving outcomes and reducing the economic burden of stroke-related disabilities.
Implementation Method 1
a multi-array sensor system with light emitting sources and detectors to measure cerebral hemodynamics
Implementation Method 2
a multi-array sensor system with light emitting sources and detectors to measure cerebral hemodynamics
Data Source
AI summary
A portable biomedical device for detecting ischemic stroke in the brain is provided. The device provides portability and compactness and can accommodate software for resolving blood flow velocity measurements. The device can provide both a diagnostic and a predictive tool for determining the occurrence of an ischemic attack, one such example being transient ischemic attack (TIA) not only at hospital bedside but also in a home environment.