Compact Vascular Bed Training Device for Realistic Imaging Simulation
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Solution Overview
Problem
Existing training devices for simulating vascular beds are large, expensive, and difficult to transport, limiting their mobility and practicality for medical training, and they often produce unrealistic imaging due to fluid distribution issues and unnecessary radiation exposure.
Innovation Solution
A compact, portable training device with a three-dimensional vascular bed design that allows for static and dynamic fluid motion simulation, using a material with homogeneous density for CT imaging and hypointense signal in MRI, and a contrast agent system for realistic imaging techniques like MRT, CT, and angiography, with integrated ports for fluid and contrast agent management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex systems with virtual simulation or complicated device design are used, then simulation accuracy is improved, but device complexity and production expense increase
Solution Approach 1:
The patent creates a physical copy of a vascular bed structure that replicates the essential anatomical features and fluid dynamics. This physical model serves as a simplified yet accurate representation of the complex human vascular system, allowing realistic simulation without requiring complex virtual systems. The copy includes vascular channels, tissue-equivalent materials, and contrast agent distribution mechanisms that mimic real physiological conditions.
Solution Approach 2:
The patent extracts only the essential functional components needed for vascular simulation - the vascular bed structure, fluid flow paths, and contrast agent distribution - while eliminating unnecessary complexity. By taking out only the critical elements required for realistic imaging simulation, the device achieves accurate representation without the burden of complex virtual systems or complete anatomical replication.
2Reliability
If large training devices are used, then simulation realism is improved, but ease of transport deteriorates
Solution Approach 1:
The training device is divided into separable components including the vascular bed structure, fluid reservoir, pump system, and imaging interface. This segmentation allows the device to be disassembled into manageable parts for easy transport while maintaining simulation realism when assembled. The modular design enables the realistic vascular simulation to be broken down without compromising the integrity of individual components.
Solution Approach 2:
The patent transitions from a fixed, space-consuming physical simulation to a compact design that utilizes vertical space and modular stacking. By arranging components in a space-efficient configuration and utilizing the third dimension for component placement, the device maintains realistic simulation capabilities while significantly reducing the footprint and improving portability.
3Reliability
If fluid motion simulation is added, then physiological accuracy is improved, but device complexity increases
Solution Approach 1:
The patent employs a hydraulic system using fluid flow through the vascular bed to simulate blood circulation. A pump creates controlled fluid motion through the vascular channels, and a reservoir maintains fluid supply. This hydraulic approach provides physiologically accurate dynamic flow patterns without requiring complex mechanical or electronic control systems, achieving physiological realism through fluid dynamics principles.
Solution Approach 2:
The device enables control of flow rate, pressure, and fluid composition parameters to match physiological conditions. By adjusting these physical parameters within the hydraulic system, the device achieves physiological accuracy in fluid motion simulation without increasing structural complexity. The same basic hydraulic infrastructure supports multiple physiological scenarios through parameter adjustment rather than structural modification.
4Reliability
If contrast agent systems are integrated, then imaging realism is improved, but manufacturing complexity increases
Solution Approach 1:
The contrast agent injection system is designed to work with multiple imaging modalities including CT, MRI, and angiography. The same basic infrastructure - injection ports, fluid pathways, and contrast distribution mechanisms - supports different imaging techniques by simply changing the contrast agent type and imaging parameters. This multi-functionality achieves imaging realism across various modalities without requiring separate systems for each technique, thereby reducing overall manufacturing complexity.
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 realistic and efficient simulation of vascular beds for medical training, reducing radiation exposure, improving image quality, and allowing for the development and testing of image fusion techniques, while being cost-effective and easy to manufacture and transport.
Implementation Method 1
three-dimensional representation of the training device and its components by means of magnetic resonance tomography (MRT), computed tomography (CT)
Implementation Method 2
three-dimensional representation of the training device and its components by means of magnetic resonance tomography (MRT)
Implementation Method 3
two-dimensional representation by means of digital radiography (DX) and transillumination (TI)
Implementation Method 4
Dynamic vascular contrasting allows in particular the testing of typical transillumination-assisted work techniques such as transillumination (TI) and digital subtraction angiography (DSA)
Data Source
AI summary
A training device and an associated method for simulating a static, dynamic, statically contrasted, and/or dynamically contrasted fluid motion within a three-dimensional (3D) vascular bed.