Neuromodulation Pulse Engine for Direct Pain Fiber Blockade

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Solution Overview

Problem

Current spinal cord stimulation systems for pain management are inadequate in completely blocking pain signal transmission and often cause uncomfortable side effects like paresthesia, and there is a need for methods that can effectively block or attenuate pain signals without relying on indirect gate theory activation.

Innovation Solution

A neuromodulation device capable of delivering ultra-low frequency direct current and alternating current through a single architecture, utilizing a control unit and blocking capacitors to bypass direct current, thereby enabling selective blockade of pain fibers and reducing neuronal excitability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If alternating current stimulation is used to indirectly reduce pain signals through gate control theory, then pain management is achieved, but pain transmission inhibition is incomplete and side effects such as paresthesia occur

Engineering Contradiction:

Improvepain transmission inhibitionVSAvoidparesthesia side effects

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the fundamental parameter of current type from alternating current (AC) to direct current (DC). DC stimulation directly blocks pain fiber conduction by depolarizing the nerve membrane, eliminating the paresthesia side effect associated with AC stimulation while achieving complete pain transmission inhibition. This parameter change transforms the mechanism from indirect gate control to direct fiber blockade.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent inverts the traditional approach by using DC instead of AC stimulation. While AC stimulation excites non-nociceptive fibers to indirectly inhibit pain (gate control), DC stimulation directly blocks nociceptive fiber conduction through membrane depolarization, achieving pain relief without the uncomfortable paresthesia sensations produced by AC stimulation.

Inventive Principle:

Principle #13The other way round (Inversion)

2Adaptability or versatility

If a single neuromodulation device architecture is used to deliver both alternating current and direct current, then device versatility is improved, but device complexity increases

Engineering Contradiction:

Improveelectrical modulation modesVSAvoiddevice architecture

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal neuromodulation device architecture that can deliver both AC and DC stimulation modes through shared hardware components. The current source and electrode configuration are designed to support both stimulation types, allowing a single device to provide multiple therapeutic modalities (AC for gate control, DC for direct blockade) without requiring separate dedicated systems, thereby improving versatility while managing complexity through component sharing.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 blocks pain signals and reduces neuronal excitability, minimizing side effects while providing long-term pain relief by targeting specific nerve tissues.

Implementation Method 1

at least one blocking capacitor that can block direct current

Methodology Applied

Scientific EffectCapacitance: Capacitance

Data Source

PatentUS12558551B2Pulse generation and stimulation engine systems

Publication Date: 2026.02.24 PRESIDIO MEDICAL INC

AI summary

Disclosed herein are systems and methods that can involve a neuromodulation device configured to perform in multiple electrical modulation modes with a single architecture.