tDCS Headset Electrode Positioning for Self-Administered Therapy
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Solution Overview
Problem
Existing transcranial brain stimulation methods face challenges such as incorrect electrode placement, lack of patient compliance, and the need for physician supervision, which can lead to inefficiencies and safety issues.
Innovation Solution
A headset with electrodes positioned on the left and right forehead, a bracket extending over the skull, and a controller to follow a scheduled stimulation protocol, allowing self-administration with electronic device support for monitoring and reminders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a physician places the electrodes on the patient's head, then the electrode placement is correct, but the therapy cannot be performed frequently enough due to physician availability
Solution Approach 1:
The patient is empowered to place the electrodes themselves using a standardized headset device with pre-positioned electrodes, eliminating the need for physician involvement in each treatment session. The headset's fixed electrode positions guide the patient to achieve correct placement independently, enabling frequent self-administered therapy.
Solution Approach 2:
The electrodes are pre-positioned on the headset frame at correct anatomical locations before the patient uses the device. This preliminary positioning eliminates the need for the patient to manually locate and place electrodes, ensuring accurate placement while maintaining ease of self-application.
2Productivity
If the patient self-applies the electrodes, then the therapy can be performed frequently, but the electrode placement becomes error-prone
Solution Approach 1:
The patient independently applies the headset device to their own head, achieving frequent self-administered therapy. The standardized headset design with fixed electrode positions enables the patient to correctly place electrodes without physician assistance.
Solution Approach 2:
The electrodes are pre-positioned on the headset frame at correct anatomical locations before the patient uses the device. This preliminary positioning ensures accurate electrode placement while maintaining ease of self-application.
3Reliability
If fabric headwear is used to hold electrodes, then the electrodes can be secured, but the headwear becomes warm and uncomfortable for extended wear
Solution Approach 1:
The patent replaces fabric headwear with a rigid or semi-rigid headset frame structure (such as a headband or forehead rest) that mechanically secures the electrodes through its rigid framework. This mechanical support system provides reliable electrode contact without the thermal insulation properties of fabric, thereby improving comfort during extended wear while maintaining electrode securing reliability.
4Ease of operation
If the headset is designed to be lightweight and comfortable, then extended wear is feasible, but the structural support for precise electrode positioning may be compromised
Solution Approach 1:
The headset employs local quality by making only the critical electrode-contact regions and their immediate mounting structures rigid and precisely positioned, while the rest of the headset structure remains lightweight and flexible for comfort. This localized rigidity ensures accurate electrode positioning without requiring the entire headset to be heavy or rigid.
Solution Approach 2:
The patent utilizes parameter changes by employing adjustable components (such as adjustable headband tension, movable electrode holders, or flexible positioning mechanisms) that allow the headset to adapt to different head sizes and shapes. This enables precise electrode positioning across various users while maintaining overall headset lightweight design for comfort.
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
Ensures correct electrode placement, enhances patient compliance, and reduces the need for physician involvement, providing safe and effective transcranial brain stimulation.
Implementation Method 1
During electrical transcranial brain stimulation, the potential of neuronal cells are influenced by an applied electric field.
Data Source
AI summary
A headset for transcranial brain stimulation including: a forehead frame defining an elongated arch; a first electrode arranged at a first end portion of the forehead frame; a second electrode arranged at a second end portion of the forehead frame; a bracket arranged at a center portion of the forehead frame; and a circuit comprising the first and second electrodes and configured to be powered according to a schedule for performing the transcranial brain stimulation.