Breathable Mesh Crib Liner to Reduce CO2 Trapping and Suffocation Risk

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional crib bumpers fail to provide adequate ventilation and can trap dangerous gases, leading to suffocation risks and increased CO2 levels, which contribute to sudden infant death syndrome (SIDS), while also obstructing nasal and oral passages.

Innovation Solution

A breathable crib liner with a mesh-type material having an air permeability of 385 CFM to 1530 CFM, light permeability of 47 to 99%, and a CO2 rebreathing value of less than 20%, designed to cover crib slats without blocking infant airways or trapping gases, using hook and loop fasteners for attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If conventional crib bumpers are used to block openings between slats, then protection from injury is improved, but ventilation is insufficient and CO2 trapping occurs

Engineering Contradiction:
Improveprotection from injuryVSAvoidCO2 trapping and suffocation risk
Core Design Contradiction:
Object-affected harmful factorsVSObject-generated harmful factors

Solution Approach 1:

The crib bumper is constructed with a porous foam material that allows air and CO2 to pass through. The pores in the foam create channels for gas exchange, preventing CO2 accumulation while maintaining the physical barrier function. This resolves the contradiction by allowing the bumper to provide protection without trapping dangerous gases.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The invention uses a composite structure combining foam material with breathable fabric covering. The foam provides cushioning and blockage prevention, while the fabric layer with its woven structure allows air permeability. This composite approach enables simultaneous achievement of injury protection and adequate ventilation.

Inventive Principle:
Principle #40Composite materials

2Object-affected harmful factors

If crib bumpers are used to protect from injury, then safety is improved, but nasal and oral passages may be blocked

Engineering Contradiction:
Improveprotection from injuryVSAvoidbreathing through nasal and oral passages
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The porous structure of the foam material allows air molecules to pass through the bumper even when an infant's face is against it. The interconnected pores create sufficient open space for respiratory airflow, preventing blockage of nasal and oral passages while maintaining the protective barrier function.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The bumper design allows different regions to have different properties - the outer surface provides protective cushioning while the internal foam structure maintains high porosity for air flow. This local differentiation enables the bumper to provide protection without impeding breathing.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If solid material is used for crib bumpers, then protection is improved, but air permeability is reduced

Engineering Contradiction:
Improveprotection from injuryVSAvoidair flow
Core Design Contradiction:
Object-affected harmful factorsVSQuantity of substance

Solution Approach 1:

The invention replaces solid foam with porous foam that has a cellular structure with interconnected voids. This porous structure maintains the mechanical protective function while creating pathways for air flow, thus resolving the contradiction between protection and air permeability.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The bumper design incorporates pneumatic principles by utilizing the compressible, air-filled structure of the porous foam. The air pockets within the foam allow gas flow while the foam matrix provides structural integrity for protection, effectively combining protective and breathable functions.

Inventive Principle:
Principle #29Pneumatics and hydraulics

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 crib liner allows for airflow, reduces suffocation risks, and minimizes CO2 rebreathing, providing a safer environment for infants by preventing gas trapping and maintaining breathability while securing the liner to the crib.

Implementation Method 1

a breathable body portion having an air permeability of between 385 CFM and 1530 CFM

Methodology Applied
Scientific EffectAir permeability: Permeation

Implementation Method 2

a light permeability of between 47 and 99%

Methodology Applied
Scientific EffectLight permeability: Light

Data Source

PatentUS11266254B2Crib liner
Publication Date: 2022.03.08 HALO DREAM INC
  • US11266254B2 patent drawing
  • US11266254B2 patent drawing
  • US11266254B2 patent drawing

AI summary

The present disclosure relates to a crib liner suitable for use with a crib, wherein the crib has a perimeter, and wherein a plurality of spaced vertical support elements are provided along the perimeter. In one embodiment, the crib liner may include a first panel configured to cover a portion of the spaced vertical support elements. The first panel may have first and second ends, a breathable body portion, a bottom border, and a top border. In some embodiments, the first panel may further comprise side borders. Fastening mechanisms may be provided at either or both ends for attaching the first panel to the crib. The breathable body portion may have an air permeability of between 385 CFM and 1530 CFM, a light permeability of between 47 and 99%, and a CO2 rebreathing value of less than 20%.