Parallel Circuit Nerve Stimulation Device for Magnetic Field Intensity
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Solution Overview
Problem
Current magnetic stimulation devices for spinal nerve operations are limited by electric current loads and device size, as they are typically fabricated in a series manner, leading to restricted magnetic field generation and potential tissue damage from direct electric stimulation.
Innovation Solution
A nerve impulse signal stimulation device with a substrate and multiple metal layers forming a parallel circuit structure, including openings that expose the substrate and metal layers, and a ferromagnetic material attached to increase current load and magnetic field intensity while reducing device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct electric stimulation is applied to spinal nerves, then stimulation effect is achieved, but nerve tissue damage may occur and large impedance adversely affects stimulation effectiveness
Solution Approach 1:
The patent introduces magnetic field as an intermediary to indirectly stimulate spinal nerves. Instead of directly applying electric current to nerves (which causes damage), the invention uses a magnetic stimulation device that generates a magnetic field to induce electric current in the nerves indirectly, thereby avoiding direct contact and tissue damage while achieving effective stimulation
2Ease of manufacture
If series fabrication method is used for magnetic stimulation device, then device structure is simple, but magnetic field generation is limited by electric current load
Solution Approach 1:
The patent segments the winding structure into multiple parallel windings instead of a single series winding. This segmentation allows multiple current paths to carry current simultaneously, increasing the total magnetic field generation capability while maintaining manageable device complexity through modular parallel structure
Solution Approach 2:
The patent transitions from one-dimensional series connection to two-dimensional parallel arrangement of windings. By organizing windings in parallel across multiple layers and spatial dimensions, the device achieves higher current load capacity and magnetic field intensity without proportionally increasing device volume
3Power
If input current is increased to enhance magnetic field, then magnetic field intensity increases, but copper wire is burned due to exceeding current density limit
Solution Approach 1:
The patent divides the total current load into multiple parallel windings, each carrying a fraction of the total current. This segmentation distributes the current density across multiple wire paths, allowing the device to achieve high magnetic field intensity through combined effect of multiple windings without any single wire exceeding its current density limit
Solution Approach 2:
The patent combines multiple parallel windings to achieve cumulative magnetic field effect. By merging the contributions of multiple windings in parallel, the device generates high magnetic field intensity equivalent to much higher current in a single winding, while actually operating at safe current densities across all individual windings
4Power
If number of windings is increased to enhance magnetic field in limited space, then magnetic field intensity increases, but device volume increases
Solution Approach 1:
The patent utilizes three-dimensional space efficiently by arranging windings in multiple layers and spatial dimensions rather than simply extending in one direction. This multi-dimensional winding arrangement increases the effective number of windings within a compact volume, enhancing magnetic field intensity without proportionally increasing device size
Solution Approach 2:
The patent employs nested winding structures where windings are arranged in concentric or layered configurations. This nesting approach allows multiple windings to occupy overlapping or adjacent spatial regions, maximizing the number of windings per unit volume and achieving high magnetic field intensity in a compact device form factor
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 parallel circuit structure enhances magnetic field intensity and current load, reducing device size and ensuring safer operations by minimizing tissue damage and improving stimulation effectiveness.
Implementation Method 1
attaching a ferromagnetic material to the second surface of the substrate
Implementation Method 2
a magnetic field is generated by an electromagnet so as to induce an electric current in the spinal nerves
Data Source
AI summary
A nerve impulse signal stimulation device and a method for fabricating the same are provided. The nerve impulse signal stimulation device includes: a substrate having a first surface and a second surface opposite to the first surface; a first metal layer formed on the first surface of the substrate; a second metal layer formed on the first metal layer; a plurality of openings exposing a portion of the first surface of the substrate, a portion of the first metal layer and a portion of the second metal layer; and a ferromagnetic material attached to the second surface of the substrate. The openings cause the nerve impulse signal stimulation device to obtain a parallel circuit structure, thereby increasing the current load and the magnetic field intensity, reducing the size of the device, and ensuring the safety of operations.