Mass Hemoptysis Simulator with Segmented Bronchial Ports
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Solution Overview
Problem
Pulmonary and critical care medicine fellows often lack adequate training in managing massive hemoptysis, a high-risk, low-volume procedure, due to insufficient simulation tools and traditional training methods that fail to provide realistic hands-on experience.
Innovation Solution
A mass hemoptysis simulator with a bronchial tree and fluid reservoir system that simulates bleeding from specific lung regions, integrated with a mannequin for realistic training, combined with a simulation-based mastery learning curriculum to ensure competency in airway management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional training methods (textbooks and videos) are used for airway management training, then training can be delivered without specialized equipment, but trainees do not gain adequate hands-on experience and skills
Solution Approach 1:
The patent creates a realistic copy of the human bronchial tree anatomy using a simulator model that replicates the actual airway structure. This allows trainees to practice on a faithful reproduction rather than just viewing videos, providing tactile and visual realism that bridges the gap between theoretical learning and actual clinical practice.
Solution Approach 2:
The simulator acts as an intermediary between traditional training methods and real clinical practice. It provides a safe intermediate environment where trainees can develop skills with feedback mechanisms before facing actual patients, resolving the contradiction by offering structured hands-on experience without the risks of real procedures.
2Reliability
If a realistic hemoptysis simulator is developed with multiple ports and fluid systems, then hands-on training effectiveness improves, but device complexity and manufacturing cost increase
Solution Approach 1:
The bronchial tree simulator is divided into multiple segmented ports corresponding to different lung regions (right upper lobe, right lower lobe, left lower lobe, etc.). Each port can independently receive fluid to simulate bleeding from specific anatomical locations. This segmentation allows realistic multi-region hemorrhage simulation while using standardized components that simplify manufacturing compared to a monolithic design.
Solution Approach 2:
The simulator incorporates universal connectors that can interface with various endoscopic instruments and fluid delivery systems. The standardized port design allows the same simulator to be used for different training scenarios (single- or multi-site bleeding, different fluid types), reducing overall system complexity through multi-functional capability.
3Reliability
If the simulator includes ports at multiple bronchial locations to simulate different bleeding sites, then training realism improves, but manufacturing precision requirements increase
Solution Approach 1:
The bronchial tree is segmented into standardized regions with ports placed at reproducible anatomical landmarks corresponding to major lung lobes. This segmentation approach uses relative positioning based on bronchial branching patterns rather than absolute measurements, allowing manufacturing tolerance while maintaining anatomical accuracy for training purposes.
Solution Approach 2:
Each port location is designed with specific local characteristics matching the anatomical region it represents (e.g., port size, orientation, and connection type vary by lung lobe). This local quality approach ensures training realism at each specific site while allowing different manufacturing specifications for different regions, optimizing both realism and manufacturability.
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
The simulator and curriculum significantly improve skills in managing massive hemoptysis, with participants meeting or exceeding the minimum passing standard after training, demonstrating effective hands-on training and competency assessment.
Implementation Method 1
a fluid flows from the fluid reservoir into the bronchial tree to simulate the bleeding at the location
Data Source
AI summary
A mass hemoptysis simulator includes a bronchial tree that has a plurality of bronchi. A plurality of ports are mounted to openings formed in the bronchi of the bronchial tree. A fluid reservoir is connected to a port in the plurality of ports. The port to which the fluid reservoir is connected is positioned at a location on the bronchial tree at which bleeding is to be simulated. A fluid flows from the fluid reservoir into the bronchial tree to simulate the bleeding at the location.