Epidural Electrode Array for Bypassing Spinal Cord Injury
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current treatments for neurological damage, such as spinal cord injuries, often result in incomplete recovery, adverse effects, and limited mobility, with existing electrical stimulation methods lacking precision and causing muscle damage or discomfort.
Innovation Solution
A method and device for stimulating muscles by applying electric current to nerve roots above the area of damage, using a specially designed electrode array that can be wrapped around or placed parallel to the nerve roots, allowing for precise control of electrical stimulation to bypass or bridge damaged areas and promote natural muscle contraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If electrical stimulation is applied to the spinal cord to reduce pain, then pain reduction is achieved, but the stimulation cannot restore motor function below the injury level
Solution Approach 1:
The patent uses an epidural electrode array positioned in the epidural space as an intermediary device to deliver electrical stimulation. This mediator allows selective stimulation of intact nerve roots above the injury level, enabling motor function restoration without directly stimulating the damaged spinal cord tissue. The electrode array serves as the intermediary between the external power source and the target nerve roots, achieving both pain relief and motor recovery.
Solution Approach 2:
The patent segments the spinal cord into multiple targetable nerve roots, each controlling specific muscle groups. By selectively stimulating individual nerve roots or combinations thereof, the system can independently control different body segments. This segmentation allows precise motor restoration of specific limbs or muscle groups while separately addressing pain in different regions, resolving the contradiction between pain relief and motor function restoration.
2Strength
If traditional electrical stimulation methods are used to stimulate muscles, then muscle contraction is achieved, but the stimulation lacks precision and causes muscle damage or discomfort
Solution Approach 1:
The patent applies local quality by positioning electrode contacts at specific locations within the epidural space to target individual nerve roots or fascicles. Each electrode contact can be independently activated to stimulate specific muscle groups with precise spatial control. This localized stimulation approach delivers adequate muscle contraction strength while minimizing spread to adjacent tissues, thereby reducing muscle damage and discomfort.
Solution Approach 2:
The patent replaces direct mechanical or surface electrical stimulation of muscles with neurological stimulation of nerve roots. Instead of applying electrical current directly to muscle tissue (which causes discomfort and damage), the system substitutes this mechanical/electrical interface with neural stimulation that naturally produces smooth, coordinated muscle contractions through the physiological neuromuscular pathway, eliminating the harmful effects while maintaining effective muscle activation.
3Strength
If surgery is performed to repair disks or vertebrae compressing the spine, then structural repair is achieved, but fibrosis occurs at the surgical site and success rate remains low
Solution Approach 1:
The patent extracts the need for invasive spinal surgery by treating the functional consequences of spinal cord injury directly through neurological stimulation. Rather than attempting surgical repair of compressed structures, the system takes out the problematic surgical intervention and replaces it with epidural electrical stimulation that bypasses the need for structural repair while achieving functional recovery. This extraction approach avoids surgical fibrosis and low success rates.
4Reliability
If drugs are administered to treat neurological damage, then some therapeutic effect is achieved, but drugs must pass through general circulation causing liver damage and unintended consequences
Solution Approach 1:
The patent substitutes pharmacological treatment with electrical stimulation therapy. Instead of administering drugs that must circulate through the body and be metabolized by the liver, the system uses electrical fields to directly stimulate nerve roots and produce therapeutic effects. This substitution eliminates the need for systemic drug circulation, avoiding liver damage and other adverse effects while maintaining reliable therapeutic benefit for pain relief and motor function restoration.
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
Enables more precise and effective muscle stimulation, reducing pain and promoting natural movement, potentially leading to improved mobility and independence for individuals with neurological damage, while minimizing tissue damage and adverse effects.
Implementation Method 1
stimulating muscle by applying electric current to nerve roots above an area of damage
Data Source
AI summary
A method of stimulating muscle in a person having neurological damage, by applying electric current to nerves at an area above an area of neurological damage, bypassing or bridging an area of neurological damage, and moving the muscle in a natural manner. A method of moving muscles of a paraplegic or a person who suffers from other movement-related disorders of the body by applying electric current to nerves at an area above an area of neurological damage, bypassing or bridging an area of neurological damage, and moving normally non-functioning muscles and moving normally non-functioning limbs.