Infant Pillow Structure for Pressure Relief and Safe Airflow
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Solution Overview
Problem
Existing pillows for babies and infants intended to prevent cranial deformities do not adequately distribute pressure uniformly and pose risks of suffocation due to liquid accumulation and CO2 inhalation from hollow foam cores, which can contribute to Sudden Infant Death Syndrome.
Innovation Solution
A pillow design featuring a deformable core surrounded by a three-dimensional woven fabric layer that is impermeable to gases and liquids, with a rounded shape to prevent liquid accumulation and a high degree of air permeability to ensure oxygen flow, reducing the risk of suffocation and CO2 buildup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If foam-like deformable materials with high percentage of interior hollowness are used, then liquid evacuation is improved, but CO2 inhalation risk increases
Solution Approach 1:
The patent employs a three-dimensional woven fabric with high porosity (90-95% open space) that allows both liquid evacuation and continuous air circulation. The porous structure enables liquids to drain through gravity while simultaneously permitting fresh air to flow through, preventing CO2 accumulation that occurs in hollow foam materials.
Solution Approach 2:
The invention combines multiple materials with complementary properties: an impermeable barrier layer (PVC, vinyl, or rubber) to prevent liquid penetration and CO2 trapping, overlaid with a permeable three-dimensional woven fabric layer that provides both liquid drainage pathways and air circulation. This composite structure resolves the contradiction between liquid evacuation and gas exchange.
2Object-affected harmful factors
If impermeable materials are used, then liquid accumulation is prevented, but CO2 gas accumulates
Solution Approach 1:
The pillow is divided into functionally distinct layers: an impermeable barrier layer that blocks liquids and a separate permeable three-dimensional woven fabric layer that allows gas exchange. This segmentation enables each layer to perform its specific function without interfering with the other, preventing both liquid accumulation and CO2 trapping.
Solution Approach 2:
The three-dimensional woven fabric acts as an intermediary between the impermeable barrier and the external environment. It allows CO2 to escape while preventing liquids from penetrating the barrier, thus mediating between the conflicting requirements of liquid impermeability and gas permeability.
3Stress or pressure
If deformable pillows are used, then pressure distribution is improved, but suffocation risk increases
Solution Approach 1:
The deformable core is constructed from a three-dimensional woven fabric with high porosity rather than solid foam, maintaining the pressure distribution benefits of deformability while eliminating the CO2 trapping hazard. The open structure allows continuous air flow even when compressed under the baby's head.
Solution Approach 2:
The pillow features a depressed area or valley area in its undeformed state that is specifically designed to receive and cradle the baby's head, providing localized pressure distribution where needed while the surrounding permeable structure maintains overall air circulation to prevent suffocation.
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 pillow effectively prevents cranial malformations by distributing pressure uniformly and ensuring safe breathing by preventing CO2 accumulation and liquid stagnation, thereby reducing the risk of Sudden Infant Death Syndrome.
Implementation Method 1
a layer (4) of three-dimensional woven fabric surrounds the barrier (7), characterised in that the layer of three-dimensional woven fabric has a high degree of air permeability
Implementation Method 2
the layer of three-dimensional woven fabric has a high degree of air permeability, thus ensuring the absence of any risk of suffocation
Implementation Method 3
the said layer of three-dimensional woven fabric and/or impermeable barrier have a rounded shape free from flat areas with the aim of making it impossible for liquids to accumulate on the same
Data Source
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AI summary
Pillow for babies and/or infants, comprising a deformable core, which is not flat, in order to accommodate the form of the head of the baby or infant, the said deformable core comprising externally a three-dimensional woven layer surrounding a barrier that is impermeable to gases and liquids in order to prevent the said gases and liquids from reaching the interior of the core.