Spinal Cord Magnetic Stimulation for Nerve Root Function Recovery
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Solution Overview
Problem
Current treatments for nerve root palsy and cauda equina syndrome, such as spinal stenosis, often require invasive surgical interventions and fail to effectively restore upper limb function after spinal cord injuries, lacking non-invasive methods to access the nerve roots or spinal cord and neglecting the complex neurophysiology of arm and hand control.
Innovation Solution
Non-invasive spinal cord stimulation techniques, including transcutaneous, epidural, and magnetic stimulation, are applied to the brain stem and cervical, thoracic, and lumbar spinal cords to regulate and restore function lost due to nerve root disorders, combined with pharmaceuticals if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If invasive surgical interventions are used to treat nerve root palsy and spinal stenosis, then pressure on nerve roots is relieved, but surgical risks and recovery time increase
Solution Approach 1:
The patent replaces mechanical surgical intervention with electromagnetic stimulation. Instead of physically removing bone or tissue to decompress nerve roots, the invention uses non-invasive electromagnetic fields to modulate neural activity and promote functional recovery, thereby eliminating surgical trauma while maintaining therapeutic effectiveness
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary between the external environment and the nervous system. This intermediary allows for non-contact, non-invasive modulation of neural function, avoiding direct mechanical contact with surgical instruments while still achieving the desired therapeutic effect on compressed nerve roots
2Ease of operation
If conventional FES units are used to treat muscle weakness, then muscle activation is achieved, but meaningful restoration of arm and hand function is not achieved
Solution Approach 1:
The patent shifts the treatment approach from the peripheral muscle level to the central spinal cord level. Instead of stimulating muscles directly (peripheral dimension), the invention applies electromagnetic stimulation at the spinal cord level (central dimension), thereby addressing the neural control mechanisms that govern complex arm and hand movements rather than merely activating individual muscles
3Ease of manufacture
If non-invasive stimulation is applied to muscles to treat weakness, then muscle activation occurs, but the complex sensorimotor processing ability is not restored
Solution Approach 1:
The patent transitions from peripheral muscle stimulation to central spinal cord stimulation, accessing the dimension where complex sensorimotor processing occurs. By targeting the spinal cord rather than individual muscles, the treatment can potentially restore the neural circuitry necessary for coordinated, purposeful movement while maintaining device simplicity
Solution Approach 2:
The patent employs a non-invasive electromagnetic stimulation device that can target multiple spinal levels and nerve roots simultaneously. This universal approach allows a single device to address various conditions (C5 palsy, cauda equina syndrome, spinal stenosis) and restore complex functions that would otherwise require multiple specialized interventions
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
These methods effectively restore motor function, strength, locomotion, continence, and reduce pain by neuromodulating spinal nervous tissues, offering a non-invasive alternative to surgery with potential for incremental improvements in hand function.
Implementation Method 1
neuromodulating the brain stem and/or suboccipital spinal cord, and/or the cervical spinal cord or a region thereof, and/or the thoracic spinal cord or a region thereof, and/or the lumbar spinal cord or a region thereof, of said subject with a magnetic stimulator
Implementation Method 2
Non-invasive spinal cord stimulation techniques, including transcutaneous, epidural, and magnetic stimulation, are applied to the brain stem and cervical, thoracic, and lumbar spinal cords
Data Source
AI summary
In various embodiments, methods are provided to improve motor function, and/or to improve motor control, and/or to improve sensory function, and/or to reduce pain in subjects with nerve root palsies (e.g., radiculopathies including, but not limited to cauda equina syndrome). In certain embodiments, methods are provided for the magnetic stimulation of the spinal cord or regions thereof to improve motor function of upper and/or lower extremities in subjects with impaired extremity motor function due to spinal cord or brain injury or pathology.