Peripheral Nerve Stimulation for Parkinson's Disease
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Solution Overview
Problem
Current treatments for movement disorders like Parkinson's Disease, such as dopamine replacement therapy and Deep Brain Stimulation (DBS), have limitations including long-term complications, invasive surgical procedures, and risks of adverse events, while the precise neural mechanism of DBS remains unknown.
Innovation Solution
Minimally invasive or non-invasive electrical stimulation of peripheral cranial nerves or the spinal cord to disrupt pathological synchronous neural activity, using cuff electrodes or surface stimulators to deliver electrical signals at specific frequencies, reducing the need for intracranial surgery and minimizing risks associated with DBS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Deep Brain Stimulation (DBS) is used to treat Parkinson's Disease, then motor symptoms are effectively controlled, but invasive surgical procedures and risks of adverse events increase
Solution Approach 1:
The patent uses peripheral nerves as an intermediary structure to deliver neural stimulation indirectly. Instead of placing electrodes directly in the brain, the invention stimulates peripheral nerves that project to motor control centers in the brain, achieving therapeutic effects while avoiding intracranial surgery and its associated risks of hemorrhage, infection, and device complications
Solution Approach 2:
The patent replaces the mechanical/invasive approach of direct brain electrode implantation with a non-invasive or minimally invasive peripheral nerve stimulation system. This substitution eliminates the need for stereotactic brain surgery while maintaining the ability to deliver controlled electrical stimulation to modulate motor circuits
2Reliability
If Deep Brain Stimulation (DBS) is used to treat Parkinson's Disease, then long-term side effects of pharmacotherapy are minimized, but device complexity and surgical precision requirements increase
Solution Approach 1:
The patent employs peripheral nerves as intermediary access points to reach brain motor circuits. This approach simplifies the overall system by eliminating the need for complex stereotactic targeting equipment, precise intracranial electrode placement, and sophisticated lead wiring systems required by traditional DBS
Solution Approach 2:
Instead of the conventional approach of working from the brain outward (implanting electrodes directly in brain tissue), the patent inverts the approach by working from the periphery inward (stimulating peripheral nerves that naturally project to brain motor centers). This inversion simplifies the procedure while achieving similar therapeutic goals
3Reliability
If dopamine replacement therapy is used to treat Parkinson's Disease, then motor symptoms are managed, but long-term complications and unresponsiveness develop
Solution Approach 1:
The patent replaces pharmacological dopamine replacement with electrical neural stimulation. Instead of administering L-DOPA medication that degrades over time and causes complications, the invention uses controlled electrical pulses to directly modulate neural activity in motor circuits, providing a non-chemical therapeutic mechanism with potentially sustained long-term effectiveness
Solution Approach 2:
The patent uses peripheral nerve stimulation as an intermediary mechanism to achieve central nervous system effects without direct brain intervention or chemical pharmacology. This intermediate approach allows for precise temporal and spatial control of neural activation, avoiding the metabolic degradation and side effects associated with long-term dopamine replacement therapy
Data Source
AI summary
The present invention relates, in general, to movement disorders and, in particular, to a method of treating movement disorders, including Parkinson's Disease.