CPR Puck Electrode Gel Dispensing Mechanism
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Solution Overview
Problem
Existing medical electrode systems for defibrillation during cardiac arrest often require manual application of conductive gel, which can be inefficient and may not ensure consistent contact with the skin, potentially affecting the effectiveness of the treatment.
Innovation Solution
An electrode system with a compression device that includes a gel reservoir to automatically release conductive gel onto therapy pads upon compression, ensuring consistent gel distribution and improved electrical conductivity, and features such as sensors and conduits to monitor and facilitate gel release and adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual application of conductive gel is used, then the system is simpler to manufacture, but the gel application consistency and electrical conductivity are compromised
Solution Approach 1:
The conductive gel is pre-loaded into reservoirs integrated within the therapy pads before use. The gel is prepared and positioned in advance within sealed compartments, ready for automatic dispensing when the pads are applied to the patient's skin, eliminating the need for manual gel application during the emergency procedure.
Solution Approach 2:
The therapy pads are designed to automatically dispense the required amount of conductive gel through pressure-activated mechanisms or rupture membranes when applied to the patient's skin. The system serves itself by integrating the gel reservoir, dispensing mechanism, and electrode into a single self-contained unit that requires no external manual intervention for gel application.
2Reliability
If manual gel application is used, then the operation process is simpler, but the treatment effectiveness and skin contact consistency are reduced
Solution Approach 1:
The conductive gel reservoir, dispensing mechanism, and therapy electrode are merged into a single integrated therapy pad unit. This combination ensures that the gel is delivered directly to the electrode surface in the correct amount and distribution, guaranteeing reliable skin contact and treatment effectiveness without requiring separate manual gel application steps.
Solution Approach 2:
The integrated gel reservoir acts as an intermediary between the storage container and the electrode surface. It automatically controls the gel flow and delivery timing, ensuring consistent gel application to the skin through the therapy pad without requiring manual intervention, thereby improving reliability while maintaining ease of operation.
3Productivity
If automated gel release is implemented, then the productivity and treatment speed are improved, but the device complexity increases
Solution Approach 1:
The gel is pre-positioned in pressure-activated reservoirs or rupture-membrane sealed compartments within the therapy pad before deployment. When the pad is applied to the patient's skin with compression, the pre-positioned gel is automatically released through pressure-sensitive valves or ruptured membranes, enabling immediate treatment without manual intervention and improving treatment speed.
Solution Approach 2:
The automated gel release mechanism utilizes pressure differential principles where compression of the therapy pad against the patient's skin creates pressure that forces gel through conduits or ruptures sealed membranes. This pressure-activated hydraulic principle enables automatic gel dispensing that improves treatment speed while keeping the mechanical structure relatively simple.
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
Enhances the efficiency and effectiveness of defibrillation by ensuring consistent gel application and contact with the skin, improving the chances of successful treatment during cardiac arrest by automating the gel distribution process.
Implementation Method 1
a compression device that includes a gel reservoir to automatically release conductive gel onto therapy pads upon compression
Implementation Method 2
ensuring consistent gel distribution and improved electrical conductivity
Data Source
AI summary
An electrode assembly includes a first surface to be placed adjacent a person's skin and a second surface including a plurality of reservoirs of conductive gel. The plurality of reservoirs of conductive gel are disposed on sections of the electrode assembly that are at least partially physically separated and may move at least partially independently of one another to conform to contours of a body of a patient. The electrode assembly is configured to dispense an amount of the electrically conductive gel onto the first surface in response to an activation signal and to provide for a defibrillating shock to be applied to the patient through the amount of the electrically conductive gel.