Integrated Abrasive Electrode for Consistent Skin Preparation
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Solution Overview
Problem
Motion artifacts caused by skin movement interfere with biopotential signal measurements, particularly in long-term ECG monitoring and stress ECGs, leading to unreliable signal quality due to varying skin impedance and preparation techniques.
Innovation Solution
An electrode with an integrated abrasive surface and gripping portion allows for skin preparation without separate tools, reducing motion artifacts by minimizing skin impedance and ensuring consistent skin preparation across electrodes and patients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate skin preparation tools are used, then skin preparation can be performed, but device complexity increases and operation becomes more time-consuming
Solution Approach 1:
The patent combines the skin preparation function and the biopotential sensing function into a single integrated electrode device. The abrasive member is incorporated directly into the electrode housing, eliminating the need for separate skin preparation tools and reducing the number of steps required for electrode application.
Solution Approach 2:
The electrode device performs multiple functions: it prepares the skin through abrasion and simultaneously serves as a biopotential sensor. This multi-functional design allows one device to replace what would traditionally require separate tools for skin preparation and electrode application.
2Reliability
If manual skin preparation techniques are used, then skin can be prepared, but technique variability leads to inconsistent signal quality
Solution Approach 1:
The abrasive member has controlled parameters including specific grit size, surface area, and abrasion pressure characteristics that standardize the skin preparation process. These controlled parameters ensure consistent skin impedance reduction across different operators and patients, leading to more reliable signal quality.
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 electrode provides a more uniform and consistent skin preparation, reducing motion artifacts and improving biopotential signal quality by minimizing technique variability and skin impedance, thus enhancing diagnostic accuracy.
Implementation Method 1
an abrasive member configured to abrade the skin of the patient
Data Source
AI summary
An electrode includes an electrically conductive member having a first surface oriented to face the skin of a patient when the electrode is placed on the skin of the patient. The electrode further includes a housing member. The electrode further includes an abrasive member configured to abrade the skin of the patient. The electrode further includes an integrated gripping portion configured to allow an operator to grip the gripping portion by hand and abrade the skin by moving the electrode using the gripping portion.