Integrally Formed Electrode Headgear with Gel Distribution
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Solution Overview
Problem
Current neurological condition detection devices face challenges in providing rapid and accurate assessment of neurological conditions, such as stroke, due to inadequate sensor positioning and gel distribution mechanisms, which can lead to inconsistent data collection and delayed diagnosis.
Innovation Solution
The development of headgear with a flexible body and integrated gel distribution modules that include a first inner part and a second outer part, where the gel distribution modules are designed to increase pressure and expel gel onto the scalp, ensuring consistent contact between sensors and the skin, and the use of light emitting diodes for proper sensor positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If gel distribution modules are added to ensure consistent sensor contact, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The gel distribution module is integrated within the headgear structure, with the gel reservoir nested inside the module housing. The module itself is embedded within the headgear body, creating a nested configuration that delivers gel functionality without adding external components, thereby improving sensor contact consistency while minimizing device complexity
Solution Approach 2:
The gel distribution module employs a self-regulating pressure mechanism where the flexible second outer part automatically responds to pressure changes within the gel reservoir. When pressure exceeds a threshold, the outer part moves to open the seal member and release gel, eliminating the need for external actuators or complex control systems while ensuring consistent gel application
2Ease of operation
If the second outer part is made flexible to enable pressure-actuated gel release, then ease of operation is improved, but manufacturing precision becomes more difficult
Solution Approach 1:
The second outer part is designed with specific material properties (flexibility) and geometric parameters (thickness, surface area) that allow it to respond to pressure changes within a defined range. By carefully selecting and controlling these parameters during manufacturing, the part achieves the desired pressure-actuated movement while maintaining manufacturability through standard molding processes
Solution Approach 2:
The frangible seal member is pre-positioned and pre-configured within the gel distribution module during manufacturing, with its breaking threshold predetermined. This preliminary setup ensures that the seal member will automatically open at the correct pressure point during use, eliminating the need for complex real-time adjustments and simplifying both manufacturing and operation
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
This solution enables rapid and accurate detection of neurological conditions by ensuring consistent sensor contact and proper positioning, facilitating early diagnosis and appropriate medical intervention.
Implementation Method 1
The second outer part can be flexible so that the second outer part is moveable to change a dimension of the gel reservoir to increase a pressure within the gel reservoir to exceed a pre-selected threshold for outputting of gel from the gel reservoir
Implementation Method 2
The seal member can be configured to move from a closed position to an open position in response to the pressure within the gel reservoir exceeding the pre-selected threshold for outputting of the gel from the gel reservoir
Data Source
AI summary
A sensor array can be integrally defined in a fabric headgear. A gel distribution module can be connected to each sensor of the sensor array. Each module can include an outer part that is connectable to a second inner part so that the fabric of the headgear and sensor are between the inner and outer parts. Each module can be configured to facilitate the distribution of a gel onto a scalp of a patient and into contact with the sensor via actuation of an actuator of the module to permit rapid deployment of the gel at the sensor specific locations on the head of a patient. The gel can be distributed directly onto skin of the scalp even when the patient has hair at the sensor location. The sensor array can be positioned so that asymmetrical positioning of the sensors on a patient's head is detectable.