Medical Posture Retainer with Rough Particle Stability
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Solution Overview
Problem
Conventional posture retaining mats with smooth and slippery particles fail to maintain a stable posture due to particle slippage, leading to an unstable support surface, especially when used for procedures like MRI imaging where precise head and neck positioning is required.
Innovation Solution
A medical posture retainer combining a mat with a core member that imparts a specific shape to the mat surface, using an airtight bag filled with particles, which is deflated to create a close contact with the body, stabilizing the posture by restricting the rise height and adapting to the body's shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If smooth and slippery particles are used in the airtight bag, then the particles can be easily filled and the mat can be manufactured simply, but the piled particles slide down and cannot maintain a sufficient rise height
Solution Approach 1:
The invention changes the surface property parameter of the particles from smooth to rough. By providing particles with a rough surface, the friction between particles increases, preventing them from sliding down when piled to a predetermined height. This allows the mat to maintain the necessary rise height for stable posture retention while still using the simple airtight bag structure.
2Adaptability or versatility
If the airtight bag is deflated to make the mat fit the body closely, then the mat can provide good contact with the body, but the mat becomes unstable on the bed and cannot stabilize the head position
Solution Approach 1:
The invention performs preliminary action by piling the rough-surfaced particles to a predetermined height before deflation. This creates a stable, elevated support structure that maintains its shape even when the airtight bag is deflated. The pre-formed particle pile provides a stable base that prevents the mat from becoming unstable on the bed, while still allowing close contact with the body through controlled deflation.
3Length of stationary object
If particles are piled to a predetermined height to maintain posture, then the rise height can be sufficient, but the smooth particles slide down and result in a gentle slope
Solution Approach 1:
The invention changes the surface roughness parameter of the particles to prevent sliding. The rough surface increases inter-particle friction, allowing the particles to be piled to the predetermined height without sliding down to form a gentle slope. This maintains both the necessary rise height and the stability of the particle pile structure for effective posture retention.
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 effectively stabilizes the posture during medical procedures by ensuring the mat maintains contact with the body, preventing movement and maintaining a stable position for the head and neck, thus enhancing the stability of the subject or patient.
Implementation Method 1
an exhaust valve for deflation is attached to the airtight bag
Data Source
AI summary
The present invention is a medical posture retainer having a mat and a core member. The mat includes an airtight bag and a cushion layer. The airtight bag is a cover of the mat and has a gas barrier property. An exhaust valve for deflation is attached to the bag. The cushion layer is formed of particles in the bag. The core member includes a plate-like support that is attached to a side face of the hag to keep a certain rise height, and a stopper that is attached to the upper face and the lower face of the airtight bag to restrict the rise height. The core member is attached before deflation of the bag so as to impart a shape necessary for receiving a specific part of a human body.