Electro-Conductive Gel Surgical Simulation for Electrosurgery Training

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Solution Overview

Problem

Current surgical training tools lack realistic simulation of tissue responses to energy-based surgical instruments, particularly electrosurgical devices, and fail to adequately mimic the properties of human or animal tissue, limiting the effectiveness of training for procedures involving electrosurgery and other minimally invasive techniques.

Innovation Solution

A surgical simulation system utilizing a combination of synthetic materials with dielectric and electro-conductive properties, including electro-conductive gel layers, to simulate the effects of electrosurgery, along with anatomically accurate models of organs and tissues that can be severed and sutured, providing a realistic training environment for surgical procedures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If synthetic materials are used to simulate tissue, then the availability and repeatability of training are improved, but the realism of tissue response to energy-based instruments deteriorates

Engineering Contradiction:
Improvetraining availabilityVSAvoidtissue response realism
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies composite materials by combining multiple synthetic layers with different properties: an outer elastomeric layer providing tissue-like flexibility, an inner foam layer providing structural support, and electro-conductive material embedded within to simulate tissue response to energy-based instruments. This composite structure enables both repeatability and realistic electrosurgical response.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent changes the electrical parameters of the synthetic material by incorporating electro-conductive materials that allow the simulation model to respond to electrosurgical energy. This enables the synthetic tissue to exhibit realistic electrical properties (conductivity, heating, cutting response) while maintaining the mechanical properties needed for tactile realism.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If harvested animal tissue is used to simulate real tissue properties, then the realism of surgical training is improved, but the ethical concerns and availability deteriorates

Engineering Contradiction:
Improvetissue properties realismVSAvoidtraining accessibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent creates artificial copies of biological tissue using synthetic materials that replicate both the mechanical and electrical properties of real tissue. The electro-conductive gel and embedded materials copy the electrical response of biological tissue to electrosurgery, while the elastomeric and foam layers copy the tactile and structural properties, eliminating the need for harvested animal tissue.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent modifies the electrical parameters of synthetic materials by adding electro-conductive components, enabling them to respond to energy-based surgical instruments in a manner that mimics real tissue without requiring biological materials. This achieves tissue-like electrical behavior through parameter modification rather than biological sourcing.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If synthetic materials without electro-conductive properties are used, then the ease of manufacture is improved, but the ability to train in electrosurgical techniques deteriorates

Engineering Contradiction:
Improvematerial fabricationVSAvoidelectrosurgery training capability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent combines electro-conductive materials with elastomeric and foam materials to create a composite structure that maintains ease of manufacture while adding electrosurgical training capability. The electro-conductive gel can be infused into the foam layer, and conductive particles or layers can be integrated during manufacturing, preserving fabrication simplicity while enabling electrical response.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent changes the electrical conductivity parameter of the synthetic material by incorporating electro-conductive substances. This modification enables the material to respond to electrosurgical energy (heating, cutting, coagulation simulation) while still being manufacturable using standard material processing techniques.

Inventive Principle:
Principle #35Parameter changes

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 system effectively trains surgeons to use energy-based surgical instruments by replicating the tactile and visual properties of real tissue, enhancing the realism and effectiveness of surgical training while minimizing the use of cadavers and animal tissues.

Implementation Method 1

At least one of the one or more simulated body organs and covering layer includes electro-conductive gel operably severable under application of electrical current to simulate electrosurgery in a training environment

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 2

electro-conductive gel operably severable under application of electrical current to simulate electrosurgery

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20240062679A1Advanced surgical simulation constructions and methods
Publication Date: 2024.02.22 APPL MEDICAL RESOURCES CORP
  • US20240062679A1 patent drawing
  • US20240062679A1 patent drawing
  • US20240062679A1 patent drawing

AI summary

A surgical simulation system is provided. The system includes at least one simulated body organ placed upon the base of an organ tray and at least one covering layer placed over the simulated body organ. At least one of the simulated body organ and covering layer includes electro-conductive gel that is operably severable under application of electrical current to simulate electrosurgery in a training environment. The training environment comprises a top cover connected to and spaced apart from a base to define an internal cavity that is partially obstructed from direct observation by a practitioner. The tray, simulated body organs and covering layer are placed inside the internal cavity for the practice of laparoscopic surgical procedures.