Infant Torso Simulator with Sagittal Deformation for Respiratory Kinesitherapy Training
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Solution Overview
Problem
Current pediatric simulators are inadequate for training respiratory physiotherapy techniques due to their inability to accurately replicate the mechanical behavior of an infant's torso, which is essential for effective bronchiolitis treatment and bronchial drainage in cystic fibrosis, as they lack deformability in the sagittal plane and realistic resistance feedback.
Innovation Solution
An infant torso simulator designed to be deformable in the sagittal plane, featuring a single-piece body with recesses in the thoracic and abdominal areas, made of silicone elastomer with varying elasticity, and equipped with pressure sensors, displacement measurement systems, and actuators to simulate breathing and blockages, allowing for realistic practice of respiratory physiotherapy gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current pediatric simulators are used for training respiratory physiotherapy, then the training can be conducted, but the simulators cannot accurately replicate the mechanical behavior of an infant's torso, resulting in inadequate training quality
Solution Approach 1:
The simulator employs a dynamic chest wall model that can deform in the sagittal plane during respiratory physiotherapy gestures, allowing the torso to flex and deform realistically. This dynamic capability enables accurate replication of infant torso mechanical behavior during breathing and physiotherapy maneuvers, resolving the contradiction between training quality and mechanical behavior replication.
Solution Approach 2:
The simulator uses materials with varying elasticity and stiffness parameters throughout the torso structure, particularly in the chest wall and abdominal regions. By adjusting these mechanical parameters, the simulator accurately reproduces the compliant behavior of an infant's torso during respiratory gestures, achieving both high training quality and precise mechanical replication.
2Ease of manufacture
If a rigid torso structure is used for the simulator, then manufacturing is simpler, but the simulator cannot provide realistic deformation and resistance feedback during physiotherapy practice
Solution Approach 1:
The torso is divided into segmented regions with different mechanical properties, particularly separating the chest wall from the abdominal region. Each segment can deform independently in the sagittal plane, providing realistic feedback while maintaining manufacturing feasibility through modular construction of the flexible structures.
Solution Approach 2:
The simulator employs flexible shell structures for the chest wall and abdominal regions, allowing these parts to deform during respiratory gestures. These flexible components provide realistic resistance feedback and deformation patterns while being manufacturable using standard flexible material techniques, balancing ease of manufacture with operational realism.
3Measurement precision
If the simulator includes multiple sensors and actuators for realistic simulation, then training accuracy improves, but device complexity increases
Solution Approach 1:
The simulator incorporates pressure sensors and displacement sensors that provide feedback on the forces and movements generated during physiotherapy gestures. This feedback mechanism enables precise measurement and evaluation of training performance while the sensors are integrated in a way that minimizes overall system complexity.
Solution Approach 2:
The simulator includes actuators that can automatically simulate breathing movements and respiratory gestures without requiring manual operation. This self-service capability provides realistic simulation and measurement data while reducing the operational complexity for trainees, allowing the system to function autonomously in providing training feedback.
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 simulator provides a realistic mechanical feel and accurate deformation, enabling effective training of respiratory physiotherapy techniques by replicating the infant's torso behavior, allowing for precise gesture practice and quantitative control, thereby enhancing learning and skill acquisition for physiotherapists.
Implementation Method 1
made of silicone elastomer with varying elasticity... deformable in the sagittal plane... deformation of the torso body
Implementation Method 2
equipped with pressure sensors... quantitative control
Implementation Method 3
displacement measurement systems... accurate deformation
Data Source
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Figure 3a~3b
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AI summary
The invention relates to an infant torso simulator for learning the act of respiratory kinesitherapy, comprising a torso body (2) characterised in that said torso body (2) is deformable in a sagittal plane (X, Z) and in that the inner portion (10) of said torso body (2) has a plurality of recesses (11) configured so as to facilitate the deformation of the torso body (2) in a longitudinal direction (X) during the performance of a respiratory kinesitherapy act. The invention also relates to a learning assembly characterised in that it comprises a torso simulator such as described above and a pair of gloves (13) provided with pressure sensors (14) and motion sensors.