Defibrillator Electrode Pad Release Liner and Storage Case
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Solution Overview
Problem
Defibrillator electrode pads with conductive gel adhesive face desiccation issues over time, requiring frequent replacement and necessitating different designs for self-test and non-self-test electrodes, which complicates storage and usage.
Innovation Solution
A release liner with a moisture-impermeable surface that electrically connects electrode pads in a closed loop for self-test configurations and disconnects them for non-self-test configurations, using a clip or case to retain the desired configuration and protect the electrodes before use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If electrode pads are stored with exposed conductive gel adhesive, then they can be easily applied to the patient, but the gel will dry out (desiccate) over time reducing shelf life
Solution Approach 1:
The patent employs a disposable electrode pad assembly with a release liner that is discarded after single use. The release liner protects the conductive gel during storage and transport, and is removed only at the moment of application, allowing the gel to remain protected until needed while maintaining ease of use.
Solution Approach 2:
The release liner is pre-applied to the electrode pad during manufacturing, creating a ready-to-use assembly that requires no additional preparation. The liner is positioned and secured in advance, so that at the moment of use, the user simply needs to remove the liner and apply the electrode, combining protection during storage with ease of application.
2Reliability
If different designs are used for self-test and non-self-test electrodes, then each type can be optimized for its specific function, but it complicates storage and necessitates maintaining multiple electrode inventories
Solution Approach 1:
The electrode pad assembly with release liner is designed to be universally compatible with both self-test and non-self-test defibrillator systems. The same basic electrode and release liner construction serves both functions, eliminating the need for separate designs and reducing inventory complexity while maintaining functional optimization through proper electrical contact configuration.
Solution Approach 2:
The electrical connection configuration is made dynamic rather than fixed. The release liner and electrode assembly can be configured to provide electrical contact between electrodes when needed for self-testing, and can be easily reconfigured or replaced for non-self-test applications, allowing a single design to adapt to different functional requirements.
3Reliability
If electrodes are pre-connected in a closed loop circuit for self-testing, then the defibrillator can automatically test electrode functionality, but the electrodes cannot be used with non-self-test defibrillators that require open circuit configuration
Solution Approach 1:
The electrical circuit configuration is made dynamic and adjustable. The release liner and electrode assembly allow the electrical connection state to be changed based on the requirements of the defibrillator system. The same physical assembly can be configured for closed-loop self-testing when needed, or for open-circuit non-self-test applications, providing versatility while maintaining reliable electrode functionality verification when required.
Solution Approach 2:
The electrical parameter of circuit configuration (open vs. closed loop) is made changeable. The electrode assembly with release liner can be configured to present different electrical connection states depending on the application, allowing the same physical electrodes to adapt to both self-test and non-self-test defibrillator systems by changing their electrical connectivity parameter.
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 solution extends the shelf life of electrode pads by preventing gel desiccation and allows for a single design to accommodate both self-test and non-self-test defibrillators, simplifying storage and ensuring readiness for use.
Implementation Method 1
a moisture-impermeable surface on which the electrodes are peripherally attached, sealing the conductive gel of the electrodes between the moisture-impermeable backing of the electrodes and the moisture-impermeable surface of the release liner
Implementation Method 2
The conductive adhesive attaches the electrode securely to the patient. Gels, however, will dry out (desiccate) over time and have a finite shelf life.
Data Source
AI summary
A defibrillator electrode assembly with a slot-like storage case is described which protects the pads prior to use and retains them in either an electrically connected or electrically disconnected configuration. When the electrode assembly is slidably inserted into the case, an optional pinch clip within the case presses electrodes on opposite sides of a thick release liner into electrical contact with each other.