Simulated Ear Model for Pressure Equalization Tube Delivery Training
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Solution Overview
Problem
Current pressure equalization tube delivery systems for treating otitis media and otitis media with effusion often require general anesthesia, which poses risks and resource challenges, and there is a need for effective training methods to ensure proper tube placement without anesthesia.
Innovation Solution
A pressure equalization tube delivery device (PETDD) with a handpiece and cannula for inserting tubes into the tympanic membrane, combined with a training system using a simulated ear model and middle ear simulating device that provides feedback on tip placement and force application, allowing for practice without actual tube deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If general anesthesia is used for tube placement, then the procedure can be performed, but it requires additional resources and carries risks
Solution Approach 1:
The patent extracts the tube delivery function from the general anesthesia context by developing a delivery system that can be used with local anesthesia or even without anesthesia. The automated delivery mechanism allows the procedure to be performed in an office setting rather than requiring an operating room and anesthesiologist, thereby eliminating anesthesia risks while maintaining procedure completion.
Solution Approach 2:
The patent introduces a simulated ear model and training system as an intermediary between operator training and actual patient procedures. This training system allows operators to practice tube delivery techniques without risking patient safety, thereby reducing complications that would otherwise require anesthesia management and resource allocation.
2Reliability
If a training system is implemented, then operator skills improve, but additional training resources are required
Solution Approach 1:
The patent creates a simplified copy of the actual ear anatomy through a simulated ear model that replicates the key structural features needed for tube delivery training. This model includes a simulated tympanic membrane and ear canal geometry that allows operators to practice delivery techniques without requiring complex anatomical structures, thereby improving training effectiveness while reducing system complexity.
Solution Approach 2:
The training system is designed to be multi-functional by incorporating both the simulated ear model and the tube delivery device into a single integrated platform. The system can train operators on multiple aspects of the procedure including device handling, delivery technique, and complication management, thereby improving comprehensive skill development without requiring multiple separate training resources.
3Productivity
If automated delivery system is used, then procedure time is reduced, but device complexity increases
Solution Approach 1:
The automated delivery system is segmented into distinct functional modules including a tube reservoir, delivery mechanism, and control system. This segmentation allows each component to perform its specific function efficiently, reducing overall procedure time while managing device complexity through modular design that facilitates easier operation and maintenance.
Data Source
AI summary
A set of simulator hardware and software provide a realistic training environment for pressure equalization tube delivery to a tympanic membrane using a semi-automated pressure equalization tube delivery device (“PETDD”). An anatomically realistic ear model is attached to a touch sensitive display so that the ear model aligns with a displayed virtual image of the middle ear, creating a realistic view through the ear canal of the ear model. A training PETDD and other devices of the simulator provide pressure and location data for the training PETDD as a trainee inserts the PETDD tip into the ear canal to rest against the virtual TM and simulate a PE tube delivery event. Resulting data is examined to determine whether the simulated delivery would have been successful if it had been a real scenario.