Training Manikin Simulating Hematemesis With Pumped Fluid Delivery

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

There is a need for a training apparatus that allows medical professionals to practice managing hematemesis conditions using simulated equipment, such as a Minnesota tube, in a controlled environment to prepare for emergencies effectively.

Innovation Solution

A training manikin with a simulated esophagus and larynx, a pump system capable of pumping simulated blood at high flow rates, and a control module to simulate hematemesis conditions, allowing for realistic training scenarios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a pump system is added to simulate hematemesis conditions, then the realism of training scenarios is improved, but the device complexity increases

Engineering Contradiction:
Improverealism of training scenariosVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A pump system acts as an intermediary device to deliver simulated blood from a reservoir through conduits to the manikin's oral aperture, creating realistic hematemesis conditions without requiring complex physiological simulation of the manikin itself

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system creates a simplified copy of the hematemesis condition by pumping simulated blood through external conduits to the manikin's mouth, rather than attempting to replicate the complex internal physiological processes of actual hematemesis

Inventive Principle:
Principle #26Copying

2Reliability

If a simulated esophagus and larynx are integrated into the manikin, then the training realism is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvetraining realismVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The simulated airway system is divided into separate components (simulated esophagus, simulated larynx, simulated bronchial tubes) that can be manufactured independently and then assembled into the manikin, reducing overall manufacturing complexity while maintaining training realism

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the conduit is made flexible to allow tube insertion, then the ease of operation is improved, but the control over liquid flow is reduced

Engineering Contradiction:
Improveease of tube insertionVSAvoidflow control complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The conduit is designed with flexible sections that allow dynamic movement and compression during tube insertion procedures, while pump control systems dynamically adjust flow rates to maintain control over liquid delivery despite conduit flexibility

Inventive Principle:
Principle #15Dynamics

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

Enables medical professionals to practice inserting and using gastrointestinal tubes under simulated hematemesis conditions, enhancing their preparedness for real emergencies with realistic and controlled training.

Implementation Method 1

a pump positioned between, and in communication with, the reservoir and the conduit, wherein the pump is configured to pump the liquid from the reservoir to the outlet end of the conduit

Methodology Applied
Scientific EffectPumping: Pump

Data Source

PatentUS11468794B2Training manikin and systems and methods of using same
Publication Date: 2022.10.11 THE UNITED STATES OF AMERICA AS REPRESENTED BY THE DEPT OF VETERANS AFFAIRS
  • US11468794B2 patent drawing
  • US11468794B2 patent drawing
  • US11468794B2 patent drawing

AI summary

A training manikin can have a front, a longitudinal axis, and a sagittal axis perpendicular to the longitudinal axis. The training manikin can comprise a head portion having an oral aperture. A simulated esophagus can be in communication with the oral aperture of the head portion. The simulated esophagus can be configured to receive a gastrointestinal tube. A simulated larynx can be positioned between the simulated esophagus and the front of the manikin relative to the sagittal axis. A reservoir can be configured to receive a liquid. A conduit in communication with the reservoir, can have an outlet end that is positioned proximate to the oral aperture of the head portion. A pump can be positioned between, and in communication with, the reservoir and the conduit and configured to begin pumping the liquid from the reservoir to the outlet end of the conduit upon a first condition.