Planar Coil Magnetic Stimulation Device for Wearable Integration
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Solution Overview
Problem
Existing magnetic stimulation devices are bulky, expensive, and lack versatility, making them difficult to use at home or on the go, and most are designed for Repetitive Transcranial Magnetic Stimulation (rTMS) with poor control over magnetic field strength, limiting their applicability for low-frequency current magnetic fields.
Innovation Solution
A magnetic stimulation device with a flat, modular coil structure that includes a power supply module, current control module, and planar coil modules, allowing for adjustable magnetic field intensity and compact design suitable for installation in clothing or mobile devices, using a signal generator and current switch to produce varying intensity magnetic fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional magnetic stimulation devices are used, then magnetic field generation capability is achieved, but device volume and weight become large and cumbersome
Solution Approach 1:
The device is divided into modular components: a planar coil assembly module, a control module, and a power supply module. The planar coil assembly itself is segmented into multiple planar coils that can be independently controlled to generate magnetic fields in different regions, allowing the system to achieve full magnetic field generation capability while keeping each module compact and lightweight.
Solution Approach 2:
The patent transitions from traditional three-dimensional volumetric coils to two-dimensional planar coil structures. This dimensional reduction allows the magnetic field generation capability to be maintained while dramatically reducing the device volume and enabling flexible integration into wearable applications.
2Ease of operation
If magnetic stimulation devices are made compact, then portability is improved, but control over magnetic field strength deteriorates
Solution Approach 1:
The control module dynamically adjusts the current supplied to each planar coil based on real-time requirements. The system can independently control the intensity and timing of current flow through different planar coils, enabling precise magnetic field strength control despite the compact planar structure. This dynamic control allows for programmable stimulation protocols with varying field intensities.
Solution Approach 2:
The system controls magnetic field strength by varying electrical parameters (current amplitude, pulse duration, frequency) supplied to the planar coils rather than changing physical coil dimensions. This allows precise control over magnetic field characteristics while maintaining a compact, portable device form factor.
3Adaptability or versatility
If planar coil structure is used, then device flexibility and wearability are improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs flexible printed circuit board (FPC) technology to create planar coil structures that can bend and conform to body contours. The planar coils are fabricated as thin-film conductive traces on flexible substrates, enabling wearable integration while using standardized flexible circuit manufacturing processes rather than custom complex fabrication methods.
Solution Approach 2:
The control module is designed to work with multiple planar coil configurations and can implement various magnetic stimulation protocols. This universal control architecture simplifies manufacturing by using a single standardized control unit that can accommodate different planar coil arrangements, reducing overall system complexity despite the flexible wearable design.
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 device provides a lightweight, thin, and convenient means to generate magnetic fields within the 0-1000 Gauss range, enhancing usability and versatility for magnetic stimulation treatments, aligning with the requirements for improved physiological regulation and health benefits.
Implementation Method 1
the planar coil receives the adjusted output current to generate a corresponding varying intensity magnetic field
Data Source
AI summary
A magnetic stimulation device having planar coil structure is disclosed. It contains a power supply module, a current control module, a plurality of planar coil modules and a plurality of electrical connection modules. In the planar coil module of the present invention, the coil structure has a flat and thin design and can be modularized. Compared with the existing magnetic stimulation devices, the overall structure of the present invention is light, thin, short, convenient to carry and use, and can be installed on clothing or built in a mobile device to provide a convenient magnetic stimulation treatment.