Antimicrobial Gel Biomedical Electrode for Skin Contamination
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Solution Overview
Problem
Biomedical electrodes used in transcutaneous electrical nerve stimulation (TENS) and other applications often suffer from bacterial contamination, leading to skin irritation and reduced lifespan due to their inability to effectively prevent microbial growth on the skin and in clinical settings.
Innovation Solution
The development of an antimicrobial biomedical electrode with a gel layer containing Benzethonium Chloride (BEC) that provides bacteriostatic and bactericidal properties, creating a zone of inhibition around the electrode site, preventing microbial growth and extending the electrode's lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a gel layer is used to enhance skin contact and comfort, then electrical contact and comfort are improved, but bacterial contamination and microbial growth increase
Solution Approach 1:
The gel layer is formulated as a composite material containing benzethonium chloride (BEC) antimicrobial agent integrated into the gel matrix. This composite structure maintains the gel's adhesive and conductive properties while adding antimicrobial functionality, allowing the electrode to provide both comfort and protection against bacterial contamination simultaneously
Solution Approach 2:
The chemical composition of the gel layer is modified by incorporating benzethonium chloride at specific concentrations. This parameter change transforms the gel from a passive adhesive medium to an active antimicrobial barrier, enabling it to inhibit microbial growth while maintaining its skin-contact and electrical conduction functions
2Productivity
If the electrode is used repeatedly in clinical settings, then productivity and usability are improved, but bacterial contamination and lifespan reduction occur
Solution Approach 1:
The gel layer is pre-formulated with benzethonium chloride antimicrobial agent before the electrode is put into service. This preliminary incorporation of antimicrobial protection ensures that the electrode is ready to prevent bacterial contamination from the first use, extending its lifespan and maintaining reliability across multiple clinical applications without requiring separate sterilization steps between uses
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 antimicrobial gel layer effectively inhibits the growth of bacteria and other microorganisms, enhancing the electrode's durability and safety for clinical use while maintaining comfort and flexibility, achieving a zone of inhibition that exceeds the electrode's size, thereby protecting the skin from microbial contamination.
Implementation Method 1
The gel contact member includes a gel combined with an anti-microbial agent. The gel contact member may inhibit the growth of microbes, prevent the growth of microbes, or kill microbes under the gel contact member.
Data Source
AI summary
A biomedical electrode for electrically contacting a user's skin includes a carrier layer, a backing layer, an electrical lead, a conductive member, and a gel contact member. The backing layer is disposed on the carrier layer. The electrical lead is positioned at least in part below the carrier layer. The conductive member is coupled to the electrical lead. The gel contact member is electrically coupled to the conductive member for directly contacting the user's skin. The gel contact member is electrically conductive. The gel contact member includes a gel combined with an anti-microbial agent.