Hemorrhage Control Training Model with Pulsatile Flow Simulation
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Solution Overview
Problem
Current training models and tools for temporary hemorrhage control and simulation lack anatomically correct simulations of the circulatory system, particularly pulsatile flow in arteries and constant pressure in veins, and do not have readily removable and replaceable simulated arteries and veins for realistic training procedures.
Innovation Solution
A body model system that includes a rigid, anatomically correct frame with simulated arteries and veins made of medical tubing, a pump for pulsatile flow, and a removable thigh patch with embedded simulated arteries and veins that can be pierced and replaced, simulating access to the aorta and vena cava for training purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current training models and tools are used, then training procedures can be conducted, but the simulation lacks anatomical correctness and realism of circulatory system flow dynamics
Solution Approach 1:
The patent creates a realistic copy of the human circulatory system using medical-grade tubing (Silastik material) that replicates arterial and venous anatomy. The simulated arteries and veins are designed to mirror actual human vascular structures, providing anatomically correct training scenarios without requiring actual human subjects or complex biological systems.
Solution Approach 2:
The system employs a pump to generate pulsatile flow through the simulated arterial system, replicating the hemodynamic characteristics of actual blood flow. This hydraulic approach creates realistic pressure waves and flow patterns that mimic physiological conditions, enhancing the realism of training procedures while avoiding the complexity of biological systems.
2Stability of the object's composition
If simulated arteries and veins are made permanently integrated, then structural stability is improved, but replaceability after puncture is lost
Solution Approach 1:
The simulated circulatory system is divided into modular segments that can be independently replaced. The thigh patch assembly with embedded simulated vessels can be removed and replaced as a unit, allowing the system to maintain structural stability during use while enabling quick replacement after puncture or damage without affecting the entire system.
Solution Approach 2:
The system is designed to allow discarded (punctured or damaged) simulated vessels to be replaced with new ones. The quick-connect fittings enable rapid replacement of simulated arteries and veins, allowing the training model to be reset and reused multiple times, thereby recovering system functionality without permanent degradation.
3Strength
If the thigh patch is made non-removable, then structural integrity is improved, but the ability to replace punctured vessels is lost
Solution Approach 1:
The thigh patch is designed as a separable component that can be removed from the body model. This segmentation allows the patch to maintain structural integrity during training procedures while enabling easy removal and replacement when vessels become punctured or damaged, resolving the contradiction between strength and ease of repair.
Solution Approach 2:
The system transitions from a static, fixed configuration to a dynamic, replaceable configuration. The thigh patch and simulated vessels are designed to be interchangeable components that can be rapidly swapped, allowing the system to adapt to different training scenarios and recover from damage without compromising structural integrity during use.
4Reliability
If a pump system is added to create pulsatile flow, then physiological realism is improved, but device complexity increases
Solution Approach 1:
A pump system is integrated into the body model to generate pulsatile flow through the simulated arterial system. This hydraulic mechanism replicates the physiological realism of cardiac output and arterial pressure waves, providing authentic training conditions while using a relatively simple mechanical system compared to biological alternatives.
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 system provides a realistic simulation of circulatory procedures, allowing for training on resuscitative endovascular balloon occlusion and other procedures, with the ability to simulate hemorrhage and pulsatile flow, enhancing the realism and effectiveness of medical training.
Implementation Method 1
a pump connected in fluid communication with the simulated artery, the pump configured to produce a pulsatile flow in the simulated artery
Data Source
Figure 1
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Figure 4A~4B
AI summary
A body model system for temporary hemorrhage control training and simulation includes a frame simulating at least a torso of the body having a hollow portion, a simulated artery positioned in the hollow portion, a thigh patch mounted to the frame proximate the hollow portion, a pump connected in fluid communication with the simulated artery and a reservoir connected in fluid communication with the simulated artery and the pump. The frame is substantially rigid. The thigh patch is constructed of a resilient material that is pierceable by a needle. The simulated artery extends through the thigh patch. The pump is configured to produce a pulsatile flow in the simulated artery.