Anatomical Trachea Model with Adjustable Obstructions

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Solution Overview

Problem

Current anatomical models of the respiratory system fail to accurately represent abnormal or difficult airway anatomy, limiting their practical application in training and demonstrating proper airway management, especially in emergency situations involving upper airway obstruction and tracheal diseases.

Innovation Solution

An anatomical model that replicates an anatomically correct human trachea with various tracheal conditions, including occlusions, and simulates the effects of endotracheal tube placement on varying laminar and turbulent airflows, featuring inflatable bladders to demonstrate different stages of swelling and inflammation, and includes airway obstructive elements to mimic specific respiratory tract complications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional anatomical models are used to represent normal respiratory anatomy, then the models are simple and easy to manufacture, but they fail to account for deviations in airway pathology and are severely limited in practical application

Engineering Contradiction:
Improveability to represent various tracheal conditionsVSAvoidmodel structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The trachea model is divided into multiple segments, each representing different pathological conditions (stenosis, tracheomalacia, tumors, etc.). This segmentation allows the model to represent various tracheal conditions while maintaining a manageable structure that can be manufactured and used for training purposes.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The model incorporates dynamic elements such as flexible tracheal walls that can collapse or deform to simulate tracheomalacia, and adjustable components that can change the degree of stenosis. This dynamic capability enables the model to represent multiple pathological states without requiring completely separate models for each condition.

Inventive Principle:
Principle #15Dynamics

2Reliability

If detailed pathological features are added to the anatomical model to represent abnormal airway anatomy, then the model becomes more realistic and useful for training, but the manufacturing complexity and cost increase

Engineering Contradiction:
Improveaccuracy of airway pathology representationVSAvoidmodel manufacturing difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The model uses adjustable parameters such as the degree of stenosis, the flexibility of tracheal walls, and the position of obstructive elements that can be modified to represent different pathological conditions. This allows a single model design to accurately represent multiple pathological states through parameter adjustment rather than manufacturing multiple detailed variants.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The model creates simplified copies of pathological features using representative elements (such as foam blocks for tumors, flexible membranes for tracheomalacia) that capture the essential characteristics of each condition without requiring exact anatomical replicas, thus reducing manufacturing complexity while maintaining training value.

Inventive Principle:
Principle #26Copying

3Adaptability or versatility

If the model includes multiple airway obstructive elements to simulate different respiratory complications, then the training value increases, but the device complexity and operation difficulty increase

Engineering Contradiction:
Improverange of clinical scenarios simulatedVSAvoidmodel setup and configuration ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The model design integrates multiple obstructive elements and pathological features into a single unified structure that can simulate various clinical scenarios. The trachea model serves multiple functions by incorporating stenosis, tracheomalacia, tumors, and other conditions within one device, reducing the need for multiple separate models while maintaining ease of operation through standardized configuration procedures.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11056020B2Method, system, and apparatus for modeling a human trachea
Publication Date: 2021.07.06 OZGA WILLIAM
  • US11056020B2 patent drawing
  • US11056020B2 patent drawing
  • US11056020B2 patent drawing

AI summary

An anatomical model and method of using the same may be disclosed. The anatomical model may teach proper airway management, including intubation of the human trachea on a patient having upper airway obstruction(s). The anatomical model may include a simulated trachea structure having a proximal end, a distal end, and an elongated tubular body extending therebetween, the elongated tubular body defining a central bore of a predetermined diameter; an artificial skin layer positioned over an exterior surface of the tubular body; an opening formed through the artificial skin layer and extending within the simulated trachea structure, the opening being configured to receive a tracheostomy tube; a foam material embedded underneath the artificial skin layer proximate the opening; and at least one airway obstructive element connected to the simulated trachea structure for causing a volume restriction of the central bore.