EEG Electrode Kit with Visual Alignment Indicators
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Solution Overview
Problem
Current electrode placement methods for consciousness monitoring are prone to errors, leading to inaccurate biopotential measurements and potential patient safety risks due to the similarity in appearance of electrodes, which can result in misplacement, incorrect orientation, and suboptimal spacing.
Innovation Solution
The development of electrodes with distinct visual features such as colored labels, alignment indicators, and unique connectors to facilitate fast and accurate placement, including a set of electrodes with a right temple, left temple, reference, and ground electrodes, each with a distinct color and orientation markers, and a method for their application that ensures proper positioning and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional identical electrodes are used, then manufacturing cost is reduced and device simplicity is maintained, but electrode misplacement occurs and measurement reliability deteriorates
Solution Approach 1:
Each electrode is assigned unique local visual characteristics (colors, patterns, symbols) at specific locations to indicate its identity and proper placement site. For example, different colors are used for different electrode types (e.g., red for right temple, blue for left temple), and alignment indicators are positioned at specific locations to guide correct orientation.
Solution Approach 2:
Color coding is implemented across the electrode set to differentiate between various electrode types and their intended placement locations. The colored labels and indicators provide immediate visual distinction, allowing technicians to quickly identify and place each electrode correctly without confusion.
2Productivity
If electrodes are placed quickly without preparation, then deployment time is reduced, but measurement precision deteriorates due to improper placement
Solution Approach 1:
Alignment indicators and visual markers are pre-positioned on each electrode and corresponding placement sites on the patient's head. This preliminary visual guidance system is prepared in advance, allowing technicians to quickly match electrodes to correct locations without requiring complex measurement or calculation during the placement process itself.
Solution Approach 2:
The electrode design includes self-aligning features where the visual indicators on the electrode directly correspond to anatomical landmarks or placement sites on the patient. The electrode essentially guides its own correct placement through these visual cues, reducing the need for operator skill and measurement procedures.
3Manufacturing precision
If visual indicators are added to electrodes, then placement accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
Color-coded labels, stickers, or printed indicators are applied to electrodes during manufacturing. These visual elements can be added through simple printing, labeling, or adhesive sticker processes that integrate easily into existing electrode manufacturing workflows without requiring complex additional steps.
Data Source
AI summary
Electrodes for use in electroencephalographic recording, including consciousness and seizure monitoring applications, have novel features that speed, facilitate or enforce proper placement of the electrodes, including any of alignment indicators, tabs and juts, color coding, and an insulating bridge between reference and ground electrodes which ensures a safe application distance between the conductive regions of the two electrodes in the event of cardiac defibrillation. A method of using a set of at least four such electrodes is also disclosed.