Anatomical Ear Model with Interchangeable Pathology Cartridges

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current training methods for surgeons to perform procedures like PE tube placement in the ear lack effective and realistic simulators, leading to potential harm from inexperienced surgeons due to the absence of cost-effective, easy-to-maintain, and realistic training models.

Innovation Solution

Development of an anatomical model comprising a detachable head with interchangeable ear canal and cartridge components that simulate various ear pathologies, allowing surgeons to practice procedures safely and accurately.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If surgeons practice on actual patients under supervision, then training reliability is improved, but patient safety deteriorates due to potential harm from inexperienced surgeons

Engineering Contradiction:
Improvetraining reliabilityVSAvoidpatient harm
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent creates a realistic anatomical model that copies the essential features of a human ear, including the ear canal, tympanic membrane, and middle ear space. This copy allows surgeons to practice procedures without risking actual patients, resolving the contradiction between training reliability and patient safety by providing a safe alternative that maintains training effectiveness.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The anatomical model serves as an intermediary between the surgeon trainee and the actual patient. It provides a intermediate training platform that simulates the surgical environment and pathology without the harmful effects of performing procedures on real patients, thus mediating between training needs and patient safety concerns.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If only patient practice is used for training, then training realism is improved, but training safety deteriorates due to risk of irreparable harm

Engineering Contradiction:
Improvetraining realismVSAvoidtraining safety
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The model creates a realistic copy of the ear anatomy including the ear canal, tympanic membrane, and middle ear structures. This realistic copy maintains the operational realism needed for effective training while eliminating the safety risks associated with practicing on actual patients, thus resolving the contradiction between training realism and training safety.

Inventive Principle:
Principle #26Copying

3Device complexity

If no training model exists, then procedure simplicity is maintained, but training effectiveness deteriorates due to lack of realistic simulation

Engineering Contradiction:
Improveprocedure simplicityVSAvoidtraining effectiveness
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent develops a relatively simple anatomical model that copies the essential anatomical features of the ear. This simple yet realistic model significantly improves training effectiveness by providing a tangible, realistic simulation for practice, while not introducing excessive complexity that would hinder training productivity.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The model is segmented into distinct components including the head portion, auricle portion, ear canal portion, and cartridge portion. This segmentation allows for ease of manufacture and maintenance while providing sufficient anatomical detail for effective training, thus balancing device complexity with training effectiveness.

Inventive Principle:
Principle #1Segmentation

4Measurement precision

If realistic training models are developed, then training accuracy is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvetraining accuracyVSAvoidmanufacturing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The anatomical model is divided into separate segments including the head portion, auricle portion, ear canal portion, and cartridge portion. This segmentation simplifies the manufacturing process by allowing each component to be produced and assembled separately, reducing overall manufacturing complexity while maintaining the anatomical accuracy needed for effective training.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The model is designed with universal features that can represent different ear pathologies through interchangeable cartridges. This multi-functionality allows a single base model to serve multiple training purposes, reducing manufacturing complexity compared to creating separate models for each pathology while maintaining training accuracy across different conditions.

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

Data Source

PatentUS7850455B2Anatomical model and method for medical training
Publication Date: 2010.12.14 UNIV OF VIRGINIA PATENT FOUND
  • US7850455B2 patent drawing
  • US7850455B2 patent drawing
  • US7850455B2 patent drawing

AI summary

Aspects of the present invention are directed to an anatomical model for training that includes a head portion; at least one auricle portion; at least one ear canal; and at least one cartridge. The at least one cartridge may be adaptable to mimic at least one pathology of the human ear, such as an eardrum perforation, a middle ear fluid, a cholesteatoma, a tumor, or earwax.