Magnetically-Responsive Switch Array for High-Resolution Brain-Machine Interface
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing brain-machine interfaces face limitations in bandwidth, spatial resolution, and size, which restrict their ability to effectively project electrical currents and/or voltages to a living brain with high precision.
Innovation Solution
A high-resolution brain-machine interface system utilizing an internal electrical backplane antenna coupled with an array of microscopic magnetically-responsive switches, which modulate electrical energy under ambient magnetic fields to achieve precise stimulation of neuronal tissue, enabling high spatial and temporal resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing brain-machine interface designs are used, then the device structure is simple, but the spatial resolution and bandwidth are limited
Solution Approach 1:
The device segments the stimulation function into multiple independent microscopic switches (10-micron scale) arranged in arrays, allowing each switch to be controlled independently by external magnetic fields. This segmentation enables high spatial resolution stimulation while keeping each individual switch simple in structure.
Solution Approach 2:
The patent introduces magnetically-responsive switches as an intermediary component between the external magnetic field source and the neuronal tissue. These switches act as mediators that convert external magnetic field signals into localized electrical stimulation at the tissue interface, achieving high-resolution control without direct complex electrode-tissue contact.
2Measurement precision
If higher bandwidth and spatial resolution are achieved, then the stimulation precision is improved, but the device size increases
Solution Approach 1:
The device implements local quality by concentrating stimulation capability into microscopic 10-micron scale switches distributed across the tissue surface. Each switch provides localized high-resolution stimulation, while the overall device maintains a compact form factor by using only the necessary number of switches for the target area.
Solution Approach 2:
The patent transitions from traditional planar electrode arrangements to a three-dimensional configuration where magnetically-responsive switches are positioned at specific depths and angles relative to the tissue. This dimensional approach allows high-resolution stimulation with reduced device footprint by utilizing spatial distribution in multiple dimensions.
3Productivity
If more electrodes are used to increase bandwidth, then the stimulation coverage is improved, but the insertion complexity and tissue damage increase
Solution Approach 1:
The patent replaces the mechanical insertion and physical contact system with a magnetic field-based control system. Instead of mechanically inserting and positioning numerous electrodes, the device uses external magnetic fields to selectively activate magnetically-responsive switches, dramatically reducing insertion complexity while maintaining high bandwidth through parallel switch activation.
Solution Approach 2:
The magnetically-responsive switches serve multiple functions: they act as stimulation electrodes, magnetic field sensors, and signal modulators. This multi-functionality allows a single component to replace what would traditionally require separate electrodes, reducing the total number of insertion points while maintaining high bandwidth through magnetic field multiplexing.
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 system allows for precise stimulation of neuronal tissue with a spatial resolution of 10-microns and high temporal resolution, effectively addressing visual deficits and enabling two-way communication between the brain and external devices.
Implementation Method 1
an array of microscopic magnetically-responsive switches, which modulate electrical energy under ambient magnetic fields
Data Source
AI summary
A neuronal tissue-machine interface apparatus includes an array of magnetically-responsive switches positioned in close proximity or contact to neuronal tissue of a human subject, wherein a magnetic environment of the plurality of magnetically-responsive switches varies along the array, and an antenna that is electrically connected to the array, wherein a subset of the magnetically-responsive switches respond to electromagnetic energy received by the antenna, and wherein the response of the subset of the magnetically-responsive switches includes modulation of an electrical current conducted by the subset of the magnetically-responsive switches.