Modular Otologic Surgical Trainer with Simulated Ear Canal Ports

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Solution Overview

Problem

Current otologic surgical training lacks effective methods for practicing microscopic and endoscopic ear surgery techniques outside of real operating room scenarios, leading to inadequate skill acquisition and increased surgical complications.

Innovation Solution

A modular surgical skills trainer system with interchangeable modules and simulated ear canal ports allows for the practice of both microscopic and endoscopic ear surgery techniques in a controlled environment, facilitating instrument control, precision movements, and depth perception training.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If surgical training is conducted using traditional apprenticeship model in real operating rooms, then surgeons gain practical experience, but patient safety is compromised and training time is excessive

Engineering Contradiction:
Improvepatient safetyVSAvoidtraining time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent creates a realistic simulation model of the ear canal and middle ear structures that replicates the anatomical and surgical characteristics of real ear surgery. This copying approach allows trainees to practice on a faithful reproduction without risking patient safety, while maintaining the realism needed for effective skill transfer to actual surgical procedures

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The simulation model serves as an intermediary training medium between theoretical knowledge and real surgical practice. It provides a controlled intermediate environment where trainees can develop skills progressively before transitioning to actual patient surgery, reducing both training time and patient risk

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If endoscopic ear surgery is taught without dedicated training tools, then training can proceed immediately, but surgical complications increase due to lack of skill proficiency

Engineering Contradiction:
Improvetraining efficiencyVSAvoidsurgical complications
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent enables preliminary practice of endoscopic ear surgery techniques on a realistic simulation model before performing actual surgery on patients. Trainees can rehearse instrument manipulation, dissection techniques, and procedural steps in advance, building muscle memory and confidence that reduces complications during real procedures

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The simulation model provides immediate tactile and visual feedback during practice sessions, allowing trainees to assess their technique and make corrections in real-time. This feedback mechanism accelerates skill acquisition and ensures proper technique development before transitioning to patient surgery

Inventive Principle:
Principle #23Feedback

3Manufacturing precision

If cadaveric temporal bones are used for training, then realistic anatomical practice is possible, but cost increases and versatility is limited

Engineering Contradiction:
Improveanatomical accuracyVSAvoidtraining system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent employs a cost-effective simulation model that can be manufactured at lower cost compared to cadaveric temporal bones. The model uses affordable materials that replicate essential anatomical features, making it economically viable for widespread adoption in training programs without sacrificing critical anatomical accuracy

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The simulation model is designed to support multiple training functions including microscopic surgery practice, endoscopic surgery training, and various surgical techniques. This multi-functionality replaces the need for multiple specialized training resources, simplifying the overall training system while maintaining anatomical fidelity

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

Data Source

PatentUS11132922B2Systems and methods for otologic surgical skills training
Publication Date: 2021.09.28 VANDERBILT UNIV
  • US11132922B2 patent drawing
  • US11132922B2 patent drawing
  • US11132922B2 patent drawing

AI summary

An otologic surgical skills training method and system include a housing that receives a removably attachable simulated ear canal working port for practicing transcanal surgery skills, and a second larger working port for practicing otologic surgery skills with lower spatial constraints. The training system may be 3D printed. Dimensions of the system provide an appropriate working distance for otologic surgery simulation. Surgical instruments such as endoscopic and microscopic instruments are received via the working port to reach an otologic surgery skill exercise module. The exercise module may be attached to a platform fixed in the housing or is configured within a self-contained working port. Exercises include placing rings on pegs, stacking nuts, placing beads onto a wire, and navigating a maze with a bead, and allow for practicing with minimal depth perception, placing prostheses at a variety of angles, prostheses soft release, and instrument feel and control.