Multi-Layer Vessel Cutdown Simulant with Movable Tissue
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Solution Overview
Problem
Current simulant technologies for practicing vessel cutdown procedures lack realistic tissue simulation and mobility, making it difficult for trainees to accurately mimic life-saving maneuvers like axillary and femoral artery cutdowns.
Innovation Solution
A vessel cutdown simulant comprising multiple layers of rubber materials to simulate skin, fat, and muscle tissues, with movable engagement and embedded conduits to mimic blood vessels, housed in a wearable or model-based structure, allowing for realistic tactile and procedural simulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current simulant technologies are used for practicing vessel cutdown procedures, then the device structure is simple, but the tissue simulation realism is insufficient
Solution Approach 1:
The patent applies composite materials by combining multiple rubber materials with different properties to simulate various tissue types. The first rubber material simulates skin with specific elasticity and surface characteristics, while the second rubber material simulates underlying tissues with different mechanical properties. This composite approach creates a multi-layered simulant structure that realistically reproduces human tissue layers, resolving the contradiction between simulation realism and structural simplicity.
2Ease of operation
If current simulant technologies are used, then the manufacturing process is simple, but the mobility and flexibility of the simulant are insufficient
Solution Approach 1:
The patent segments the simulant into multiple independently manufactured layers, each with specific mobility and flexibility characteristics. The first layer (skin) and second layer (underlying tissue) are manufactured separately and then assembled, allowing each layer to be optimized for specific mechanical properties. This segmentation enables the simulant to exhibit realistic mobility and flexibility during cutdown procedures while maintaining manageable manufacturing processes for each individual layer.
3Manufacturing precision
If realistic tissue simulation is implemented with multiple layers and movable engagement, then the training accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent implements dynamic characteristics by creating movable engagement between the first and second layers, allowing them to move relative to each other during manipulation. This dynamic structure reproduces the natural movement and deformation of human tissues during cutdown procedures, significantly improving training accuracy. The movable engagement mechanism, while adding some structural complexity, enables realistic tactile feedback and tissue response that static simulants cannot provide.
Data Source
AI summary
Disclosed herein are embodiments of a vessel cutdown simulant, and methods of making and using such a vessel cutdown simulant, whereby the vessel cutdown simulant includes a first layer; a second layer underlying the first layer, the second layer movably engaged with the first layer; a first conduit underlying the first layer; whereby the first layer, the second layer, and the first conduit together provide a simulated body tissue; and a housing including a side wall which defines an interior cavity configured to house the simulated body tissue.