Patient Simulator with Independent Chest and Lung Actuation
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Solution Overview
Problem
Current infant and newborn manikins are inadequate for simulating various pathological states due to their small size and lack of realism, limiting the effectiveness of medical training for critical care scenarios.
Innovation Solution
A patient simulator, particularly for premature babies, is designed with a separable lung simulator and thorax that can be actuated independently, allowing for realistic simulation of breathing mechanics, including resistance and compliance, and includes features like pneumothorax and respiratory distress syndrome simulation, along with a liftable and lowerable chest element driven by a lifting and lowering mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lung simulator and chest lifting mechanism are integrated in conventional configurations, then the structure is simpler, but the simulation of pathological states is limited and realism is reduced
Solution Approach 1:
The device is divided into functionally independent modules: the lung simulator (with elastic hollow body for breath-mechanical simulation) and the chest lifting mechanism (with motor-driven piston for thorax movement) operate separately. This segmentation allows each module to be optimized for its specific function, enabling realistic simulation of pathological states like respiratory distress syndrome while maintaining a manageable overall structure.
2Length of moving object
If the simulator is configured for small premature baby simulation, then the size is reduced, but the truth to reality and simulation capability are compromised
Solution Approach 1:
The simulator employs dynamically adjustable parameters including variable resistance elements and variable compliance elements in the lung simulator, along with controllable chest lifting speeds and patterns. This dynamic capability allows the compact simulator to realistically simulate various pathological states (such as respiratory distress syndrome with increased resistance) despite its reduced size, thereby maintaining high truth-to-reality for medical training.
3Ease of operation
If the chest element is directly coupled to the lung simulator, then the mechanism is simpler, but the independent control of breathing mechanics is lost
Solution Approach 1:
The direct mechanical coupling between chest and lung simulator is eliminated. Instead, the chest lifting mechanism uses a motor-driven piston that independently controls chest elevation, while the lung simulator separately manages breath-mechanical parameters. This functional segmentation enables independent control of chest movement and lung expansion, allowing realistic simulation of pathological breathing patterns despite the increased mechanical 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 simulation of various physiological and pathological states, providing enhanced training options for medical professionals and allowing for space-saving configurations, improved realism, and independent control of breathing mechanics, enhancing the training experience.
Implementation Method 1
a lifting and lowering mechanism actuatable independently of the lung simulator
Implementation Method 2
a pneumatic series connection of resistance and compliance
Implementation Method 3
an elastic hollow body, which is connected to a spontaneous breathing pressure source to periodically fill and empty the hollow body
Data Source
AI summary
In a patient simulator, in particular a premature baby, newborn or child simulator, including a simulated thorax, a pneumatic lung simulator and a simulated trachea leading to the lung simulator, wherein the simulated thorax includes a simulated chest including at least one liftable and lowerable chest element to simulate lifting and lowering of the chest, the at least one liftable and lowerable chest element cooperates with a lifting and lowering mechanism actuatable independently of the lung simulator.