Endoscopic GI Electrode Catheter for Controlled Surface Stimulation

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Solution Overview

Problem

Current treatments for functional gastrointestinal disorders, such as medication, endoscopic procedures, and surgical operations, are often ineffective and costly with potential complications, necessitating the development of a noninvasive electrical gastrointestinal stimulation technology.

Innovation Solution

An electrical stimulation device is integrated with an endoscope to apply electrical stimulation noninvasively to targeted gastrointestinal surfaces using a catheter with an elongated element and longitudinal members that deploy and retract, controlled by a controller to ensure precise application and contact.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional treatments (medication, endoscopic procedures, surgical operations) are used to treat functional gastrointestinal disorders, then treatment coverage is provided, but treatment effectiveness is insufficient and complications may occur

Engineering Contradiction:
Improvetreatment effectivenessVSAvoidcomplications
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces mechanical surgical operations and endoscopic procedures with an electrical stimulation system. The controller delivers electrical signals through electrodes to stimulate gastrointestinal tissue, substituting invasive mechanical interventions with non-invasive electrical fields to achieve therapeutic effects while avoiding surgical complications

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system changes the physical state of treatment by applying controlled electrical parameters (voltage, current, frequency, pulse duration) to gastrointestinal tissue. The controller adjusts these electrical parameters to achieve therapeutic stimulation without causing tissue damage, transforming the treatment approach from chemical/mechanical to electrical parameter control

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If invasive procedures are performed to treat gastrointestinal disorders, then direct access to target tissue is achieved, but patient safety is compromised

Engineering Contradiction:
Improveaccess to target tissueVSAvoidtissue damage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces electrical fields as an intermediary between the controller and gastrointestinal tissue. Instead of direct mechanical contact or insertion, electrical signals serve as the mediator to transmit therapeutic energy through the catheter electrodes to the target tissue, enabling treatment without physical invasion that could cause damage

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system replaces mechanical invasion with electrical field application. The controller delivers electrical stimulation through a catheter without requiring surgical cutting, drilling, or extensive mechanical manipulation of tissue, thereby achieving target access while maintaining patient safety

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If electrical stimulation is applied to gastrointestinal tissue, then therapeutic effect is achieved, but precise control of stimulation parameters is required

Engineering Contradiction:
Improvetherapeutic effectVSAvoidcontrol system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent incorporates feedback mechanisms where the controller monitors the electrical stimulation delivery and adjusts parameters based on tissue response. The system can detect electrical impedance changes or other physiological signals to optimize stimulation in real-time, ensuring therapeutic effectiveness while managing control complexity through automated feedback loops

Inventive Principle:
Principle #23Feedback

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

The device enables noninvasive electrical stimulation of gastrointestinal surfaces, allowing controlled application of electrical energy for therapeutic purposes without tissue damage, enhancing treatment efficacy and safety.

Implementation Method 1

a controller (12) configured to control the catheter (11). The electrical stimulator (120) may apply electrical stimulation to a desired portion on the surface of the inner cavity of the target

Methodology Applied
Scientific EffectElectrical stimulation: Electric Field

Implementation Method 2

The closely attached portion (114) may be configured to surround the opening (113) and be closely attached to the surface of the inner cavity of the target

Methodology Applied
Scientific EffectAdhesion: Adhesive

Implementation Method 3

When the closely attached portion (114) is closely attached to the surface of the target, the controller (12) may suck air into the working channel (112) through the opening (113)

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP3967363B1Electrical stimulation device
Publication Date: 2026.01.21 KOREA UNIV RES & BUSINESS FOUND
  • EP3967363B1 patent drawingFigure 1
  • EP3967363B1 patent drawingFigure 2
  • EP3967363B1 patent drawingFigure 3

AI summary

An electrical stimulation device according to an embodiment includes: an elongated element having working channels; a plurality of electrical stimulators each including a longitudinal member extending along the longitudinal direction of the working channel, and a tip which is installed at the distal end of the longitudinal member and configured to apply electrical stimulation to a subject; and a control unit that independently controls the plurality of electrical stimulators to vary the range of electric stimulation applied to the subject.