Wireless EEG Acquisition for Remote Sleep Diagnostics

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Solution Overview

Problem

Existing wireless EEG data acquisition systems face challenges with interference, bandwidth issues, data transfer rates, high power consumption, and the need for motion and ocular artifact correction, particularly in remote monitoring applications.

Innovation Solution

A programmable wireless EEG data acquisition system using low-power components operating below 2.0 GHz, with integrated accelerometers for motion artifact correction, removable memory for data storage, and software filtering for ocular movement artifacts, capable of transmitting signals through a USB-powered receiver.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If wireless transmission is used for EEG data acquisition, then mobility and ease of operation are improved, but interference and signal reliability deteriorate

Engineering Contradiction:

ImprovemobilityVSAvoidsignal reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent introduces an intermediary processing stage where the wireless signal is received by an antenna, converted to baseband signals through mixing and filtering, and then processed by a digital signal processor. This intermediary processing chain isolates the vulnerable wireless reception from the sensitive EEG analysis, maintaining signal reliability while preserving wireless mobility benefits

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces traditional wired mechanical connections with wireless electromagnetic transmission. The EEG electrodes and sensing devices transmit signals wirelessly through RF communication rather than physical cables, eliminating the mechanical constraint while implementing compensation algorithms to maintain signal quality

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If wireless transmission bandwidth is increased, then data transfer rate is improved, but power consumption and interference worsen

Engineering Contradiction:

Improvedata transfer rateVSAvoidpower consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic transmission bursts rather than continuous high-bandwidth transmission. Data is collected and transmitted in periodic intervals, allowing the system to achieve adequate data transfer rates while reducing average power consumption and minimizing continuous RF interference in the spectral domain

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The system dynamically adjusts transmission parameters including bandwidth and power based on signal quality metrics and data priority. High-priority EEG data uses higher bandwidth channels while lower-priority telemetry uses narrower bands, optimizing the trade-off between data transfer rate and power consumption in real-time

Inventive Principle:

Principle #15Dynamics

3Measurement precision

If motion artifact correction is added, then measurement precision is improved, but device complexity increases

Engineering Contradiction:

ImproveEEG signal accuracyVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple artifact correction functions into a single integrated digital signal processor. Motion sensors, ocular sensors, and EEG channels are all processed together in unified artifact rejection algorithms, reducing the number of separate processing units needed while maintaining high measurement precision through coordinated multi-sensor analysis

Inventive Principle:

Principle #5Merging (Combining)

4Adaptability or versatility

If removable memory is integrated, then adaptability is improved, but device complexity and manufacturing difficulty worsen

Engineering Contradiction:

Improvesystem adaptabilityVSAvoidmanufacturing simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent segments the memory system into removable storage modules that can be independently manufactured and then integrated into the main device. This allows the core EEG acquisition system to be produced using standardized processes, while memory capacity can be customized through module selection, balancing manufacturing simplicity with system adaptability

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12414693B1Sleep diagnostics using cellular and/or internet data transfer from remote testing locations

Publication Date: 2025.09.16 CLEVELAND MEDICAL DEVICES INC

AI summary

The present invention provides for a data acquisition system for sleep diagnostics, and method of using such system. The wireless sleep diagnostic data acquisition system can be used for remote testing, and provides for an easy and seamless transfer of testing data through cellular systems from a portable, wearable patient interface box to a computer and/or monitor to allow the patients physician to review and analyze the sleep data at one or more sites remote from where the patient was tested.