Surgical Simulator Artificial Organs Using PCRTVS Material

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Solution Overview

Problem

Current methods for practicing surgical techniques lack realism and are costly, with animal models being unethical and cadaver tissue being less realistic, while synthetic models often fail to accurately mimic actual tissue characteristics.

Innovation Solution

Development of surgical simulators featuring artificial organs made from platinum-cured room temperature vulcanization silicone rubber (PCRTVS) that replicate the appearance, texture, and vascular systems of real organs, including lumens that mimic vascular inflow and outflow tracts and biliary drainage, allowing for realistic fluid flow and bleeding during simulated procedures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If animal models are used for surgical training, then realistic surgical conditions are achieved, but high costs and ethical issues arise

Engineering Contradiction:
Improverealism of surgical conditionsVSAvoidethical issues and cost
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent creates artificial organs that are detailed replicas of real biological organs, copying their external appearance, internal structure, and material properties. The artificial organs use silicone rubber materials with varying durometers to replicate the tactile and visual characteristics of real tissue, providing a realistic training experience without using actual animals or cadavers.

Inventive Principle:
Principle #26Copying

2Object-affected harmful factors

If cadaver tissue is used for surgical training, then lower costs are achieved, but realism is reduced due to lack of flowing body fluids and physical characteristics of dead tissue

Engineering Contradiction:
ImprovecostVSAvoidrealism of tissue characteristics
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent incorporates fluid distribution systems with pumps and reservoirs that circulate blood-mimicking fluids through the artificial organs. This dynamic parameter change allows the simulation of pulsing blood flow, bleeding, and other physiological responses that are absent in static cadaver tissue, significantly enhancing realism while maintaining cost-effectiveness.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If inexpensive synthetic models like carpet backing are used, then cost and portability are improved, but correlation to actual tissue deteriorates

Engineering Contradiction:
Improvecost and portabilityVSAvoidcorrelation to actual tissue
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The patent uses composite materials including silicone rubber with different durometers (Shore A10, Shore OO3, Shore OO10, Shore OO30), fibrous materials, and blood-mimicking fluids to create a multi-layered artificial organ structure. This composite approach replicates the complex properties of real tissue, including elasticity, texture, and fluid response, providing high fidelity training models that remain portable and reusable.

Inventive Principle:
Principle #40Composite materials

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

Provides a highly realistic and cost-effective training experience that closely mimics real surgical conditions, enhancing surgical skills without the ethical and practical limitations of animal or cadaver use, and allowing for precise simulation of various surgical procedures.

Implementation Method 1

The artificial organ is substantially formed of platinum cured room temperature vulcanization silicone rubber ('PCRTVS')

Methodology Applied
Scientific EffectRoom temperature vulcanization:

Data Source

PatentUS8968003B2Surgical simulator, simulated organs and methods of making same
Publication Date: 2015.03.03 COLORADO STATE UNIV RES FOUND
  • US8968003B2 patent drawing
  • US8968003B2 patent drawing
  • US8968003B2 patent drawing

AI summary

A surgical simulator is disclosed herein. The surgical simulator includes an artificial organ and an enclosure substantially enclosing the artificial organ. The artificial organ is substantially formed of platinum cured room temperature vulcanization silicone rubber (“PCRTVS”).