Multi-Modal Peripheral Nerve Stimulation for Tremor Reduction
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Solution Overview
Problem
There is a significant need for non-invasive and effective treatments for essential tremor (ET) and other neurological disorders associated with tremor, as current drug treatments are only partially effective and invasive surgical procedures like deep brain stimulation carry risks.
Innovation Solution
A peripheral nerve stimulation device is used to send signals along sensory nerves to modify abnormal brain circuit dynamics, normalizing neural firing and reducing tremor through methods such as electrical, mechanical, and chemical stimulation at multiple body locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If deep brain stimulation is used to treat tremor, then tremor amplitude reduction is achieved (90% effectiveness), but surgical risks and invasiveness increase
Solution Approach 1:
The patent introduces peripheral nerves as an intermediary target between the stimulation device and the brain. Instead of directly stimulating the brain (invasive DBS), the device stimulates peripheral nerves that project to the brain, achieving tremor reduction without surgical intrusion into the central nervous system. This mediator approach resolves the contradiction by maintaining therapeutic effectiveness while eliminating surgical risks.
Solution Approach 2:
The patent replaces the mechanical surgical implantation system with a non-invasive peripheral nerve stimulation system. Instead of using surgical electrodes implanted in the brain, the invention uses external or minimally invasive peripheral nerve stimulators that deliver electrical signals through nerve pathways outside the brain, thereby substituting an invasive mechanical system with a safer alternative.
2Reliability
If drug treatment is used to reduce tremor, then tremor amplitude is reduced by 50% in 60% of patients, but severe side effects occur
Solution Approach 1:
The patent substitutes pharmacological treatment with electrical nerve stimulation. Instead of using chemicals (drugs) that cause side effects, the invention uses electrical signals delivered to peripheral nerves to achieve tremor reduction. This substitution eliminates the harmful side effects associated with drug therapy while maintaining therapeutic effectiveness.
Solution Approach 2:
The patent changes the fundamental parameter of treatment from chemical (pharmacological) to physical (electrical stimulation). By switching from drug-based mechanisms to electrical nerve stimulation, the invention achieves tremor reduction without the adverse effects of pharmacological agents, utilizing a different physical principle to accomplish the same therapeutic goal.
3Device complexity
If single-mode peripheral nerve stimulation is used, then treatment simplicity is maintained, but tremor reduction duration and efficacy are limited
Solution Approach 1:
The patent merges multiple stimulation modes (electrical, mechanical, chemical) into a single integrated peripheral nerve stimulation system. By combining different stimulation modalities that can be applied to the same peripheral nerve, the invention achieves enhanced and prolonged tremor reduction while maintaining relative simplicity through unified device architecture and coordinated control.
Solution Approach 2:
The patent creates a universal peripheral nerve stimulation system capable of delivering multiple stimulation modes through a single platform. This multi-functional device can switch between electrical, mechanical, and chemical stimulation methods, allowing it to address different treatment requirements and extend the duration of therapeutic effect while maintaining a consistent, manageable system design.
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
This approach effectively reduces tremor amplitude by 10-75% faster and for a longer duration compared to single-mode treatments, avoiding surgical risks and side effects.
Implementation Method 1
delivering a first stimulus to the first peripheral nerve through the first peripheral nerve effector
Implementation Method 2
Previous work has shown that these circuit dynamics may be temporarily altered by cooling, topical analgesics and vibration
Data Source
AI summary
A peripheral nerve stimulator to stimulate a peripheral nerve to treat essential tremor and other movement disorders, as well as overactive bladder, cardiac dysfunction and neurotransmitter dysfunction is provided. The peripheral nerve stimulator can be a noninvasive surface stimulator to provide multi-modal optimized therapy. Stimulation can be vibrational, electromechanical, thermal, radiant, electrical, magnetic, electromagnetic, light, mechanical, chemical, thermal, ultrasonic, radiofrequency (RF), acoustic, infrared, ultraviolet, x-ray, and/or microwave. Stimulation can be delivered using an open loop system and/or a closed loop system with feedback. Stimulation can be to one site or multiple sites.