Foam Nasal Cannula Tips for Skin Irritation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing nasal cannula designs are uncomfortable for prolonged use, causing skin irritation and nose bleeds due to the scratchy plastic material and focused oxygen flow.
Innovation Solution
The introduction of foam comfort tips that cover the prongs, providing tension to secure them, diffusing oxygen flow, and optionally impregnated with lubricating gel to enhance comfort and humidification, while maintaining minimal resistance to airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If plastic prongs are used to deliver oxygen, then oxygen flow is focused and delivered effectively, but skin irritation and discomfort occur due to the scratchy material
Solution Approach 1:
A foam comfort tip is introduced as an intermediary component between the plastic prong and the patient's skin. The foam tip covers the plastic prong, allowing the oxygen flow to pass through while providing a soft, comfortable interface with the skin, thus eliminating the scratchy sensation without compromising oxygen delivery
Solution Approach 2:
The foam comfort tip is made from porous foam material that allows oxygen to pass through while providing a soft, comfortable interface. The porous structure enables effective gas transfer from the plastic prong to the nasal passage, maintaining oxygen delivery effectiveness while eliminating skin irritation from the plastic material
2Power
If plastic prongs are used, then oxygen flow is concentrated, but nasal tissue drying and nose bleeds occur
Solution Approach 1:
The foam comfort tip utilizes its porous structure to diffuse the concentrated oxygen flow from the plastic prong into a wider area of the nasal passage. This distribution prevents focal drying and irritation of the nasal tissue while maintaining effective oxygen delivery, thereby preventing nose bleeds
Solution Approach 2:
The foam comfort tip changes the physical parameters of oxygen delivery by converting a concentrated, high-velocity flow into a diffused, lower-velocity flow. This parameter change reduces the drying effect on nasal tissue while maintaining adequate oxygen concentration for effective delivery
3Ease of operation
If foam comfort tips are added to cover prongs, then skin comfort is improved, but device complexity increases
Solution Approach 1:
The cannula device is segmented into distinct functional components: the plastic prong for oxygen delivery, the foam comfort tip for skin protection and comfort, and the retaining mechanism for securing the foam tip. This segmentation allows each component to perform its specific function independently, improving overall device performance without creating excessive complexity
Solution Approach 2:
The foam comfort tip is implemented as a thin, flexible foam layer that can be easily attached to and removed from the plastic prong. This thin-film approach provides the necessary comfort and protection while adding minimal structural complexity to the overall device
4Object-affected harmful factors
If foam covers are used to diffuse oxygen, then skin irritation is reduced, but airflow resistance may increase
Solution Approach 1:
The foam comfort tip is constructed from highly porous foam material with optimized pore size and distribution. This porous structure allows oxygen to pass through with minimal resistance while providing the necessary softness and comfort, thus reducing skin irritation without significantly increasing airflow resistance
Solution Approach 2:
The foam comfort tip is designed with specific physical parameters including porosity, density, and thickness that are optimized to balance comfort and airflow. By carefully controlling these parameters, the foam tip provides effective oxygen diffusion while maintaining low airflow resistance
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 foam comfort tips reduce skin irritation and nose bleeds by distributing oxygen evenly and providing a comfortable fit, improving breathing and reducing the risk of nasal dryness and irritation.
Implementation Method 1
the foam is configured to have little or no resistance (e.g., not too dense so as to block the flow of oxygen)... sufficiently porous to diffuse air (e.g., oxygen) exiting from the prongs
Data Source
AI summary
According to one embodiment, a device is disclosed. The device includes a nasal cannula having prongs to supply air and covers inserted over the prongs to prevent discomfort during use of the nasal cannula.