Collapsible CPR Manikin Torso with Self-Expanding Resilient Members
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Solution Overview
Problem
Conventional CPR training manikins are cumbersome to assemble, take up too much space, and pose risks of cross-contamination and inconsistent inflation, leading to suboptimal training experiences.
Innovation Solution
A collapsible and expandable training manikin with a torso part comprising a base board, lung plate, chest board, and resilient member, which simulates chest compression resistance and includes a lung bag for ventilation, allowing quick setup and storage without external devices or mouth inflation, and features a self-inflatable head for realistic training.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the manikin is made collapsible and expandable to save space, then storage space is reduced, but assembly complexity increases
Solution Approach 1:
The manikin is divided into separate components (head, torso, limbs) that can be independently stored and assembled. The torso alone comprises multiple separable parts including base board, lung plate, chest board, and resilient members, allowing flexible assembly and compact storage of individual segments.
Solution Approach 2:
The resilient members are positioned between the base board and lung plate in a nested configuration, with the first resilient member having its second end connected to the lung plate and the second resilient member having its first end connected to the base board, creating a compact nested structure that collapses efficiently.
2Device complexity
If the manikin requires manual inflation by mouth or pump, then device complexity is reduced, but ease of operation deteriorates due to cumbersome assembly
Solution Approach 1:
The resilient members are pre-positioned between the base board and lung plate in the collapsed configuration, ready to automatically provide expansion force when activated. This preliminary positioning eliminates the need for complex assembly steps and manual inflation procedures during actual use.
Solution Approach 2:
The resilient members are configured to automatically expand the torso from collapsed to training position when activated, eliminating the need for manual inflation by mouth or pump. The system serves itself by using the inherent elasticity of the resilient members to perform the expansion function.
3Device complexity
If the same valve is used for multiple trainees to inflate the manikin, then device complexity is reduced, but harmful factors increase due to cross-contamination risk
Solution Approach 1:
The harmful function of mouth inflation is completely removed from the system. The resilient members are configured to automatically inflate the torso without requiring any contact between trainees and the manikin, extracting the contamination risk entirely from the system while maintaining operational simplicity.
4Reliability
If the manikin requires consistent manual inflation for training accuracy, then training reliability is improved, but loss of time increases due to repeated inflation procedures
Solution Approach 1:
The resilient members automatically maintain consistent inflation of the torso without requiring repeated manual intervention. Once activated, the system self-regulates the inflation state, eliminating time-consuming repeated inflation procedures while ensuring consistent training conditions across multiple use sessions.
Solution Approach 2:
The resilient members are pre-loaded with sufficient elastic energy to provide multiple expansion cycles without re-inflation. This excessive action approach ensures that the manikin can be used repeatedly for training sessions without requiring time-consuming re-inflation, maintaining consistency while reducing time loss.
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 solution enables rapid deployment and storage of the manikin, minimizing space requirements and reducing the risk of cross-contamination while providing a consistent and realistic training experience by simulating the resistance and movement of a human chest during CPR.
Implementation Method 1
a resilient member positioned between said base board and said lung plate, the resilient member having a first end and a second end opposed to said first end, the first end being connected to the base board and the second end being connected to the lung plate, the resiliency of the resilient member being adapted to simulate the resistance encountered in compressing a human chest
Data Source
AI summary
A training manikin for practising cardiopulmonary resuscitation, said manikin including a torso part, the torso part including: a base board, a lung plate arranged at a distance to said base board, a chest board, a retaining member, a resilient member positioned between said base board and said lung plate, the resilient member having a first end and a second end opposed to said first end, each first end being connected to the base board and each second end being connected to the lung plate, the resiliency of each resilient member being adapted to simulate the resistance encountered in compressing a human chest, a lung bag positioned between said chest board and said lung plate, wherein the retaining member is adapted to retain the torso part in the storage position.