Nasal Cannula Heating Wire Condensation Prevention
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Solution Overview
Problem
Existing nasal cannulas for pneumatically splinting the upper respiratory tract face issues with condensation, noise emission, and comfort due to temperature drops and kinking, which are not adequately addressed by current technologies.
Innovation Solution
The design incorporates a heating wire within a forked tube to prevent condensation, with a temperature sensor to control heating power, a non-cylindrical insulation shape to maintain airflow, stabilizing wires, and a Y-shaped element to reduce noise and mechanical connection for sound reduction, along with internal radius steps and rounded transitions to ensure even airflow and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a heating wire is installed in the forked tube to prevent condensation, then condensation prevention is improved, but device complexity increases
Solution Approach 1:
The heating wire is nested within the forked tube, with the wire positioned inside the tube lumen and insulated. This nesting arrangement allows the heating function to be integrated into the existing tube structure without adding external complexity, thereby preventing condensation while minimizing increases in device complexity.
Solution Approach 2:
The heating wire serves multiple functions: it prevents condensation in the forked tube, provides thermal comfort to the user, and can be integrated with temperature sensors for control. This multi-functionality justifies the added complexity by delivering multiple benefits from a single component.
2Object-generated harmful factors
If the forked tube is kinked to reduce noise, then noise emission is reduced, but airflow is compromised
Solution Approach 1:
The forked tube is designed with flexible material properties that allow controlled kinking while maintaining patency. The tube wall flexibility enables noise reduction through gentle kinking without complete occlusion, preserving sufficient airflow while achieving the desired noise reduction effect.
Solution Approach 2:
The system allows dynamic adjustment of the tube configuration through controlled kinking, where the tube can be gently bent to reduce noise during operation. This dynamic capability enables users to adjust the tube position to achieve noise reduction while maintaining adequate airflow through proper technique.
3Object-affected harmful factors
If heating power is increased to prevent condensation, then condensation prevention is improved, but energy consumption increases
Solution Approach 1:
Temperature sensors are integrated into the system to monitor the temperature of the forked tube and provide feedback to the heating control. This feedback mechanism allows the heating power to be dynamically adjusted based on actual temperature conditions, preventing condensation only when and where needed, thereby minimizing overall energy consumption.
Solution Approach 2:
The heating wire is positioned specifically within the forked tube where condensation occurs, providing localized heating only at the problem area rather than heating the entire nasal cannula system. This localized approach reduces energy consumption while effectively preventing condensation in the critical region.
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
This solution effectively prevents condensation, reduces noise emission, and enhances user comfort by maintaining airflow and temperature control, even when the nasal cannula is kinked, while using biocompatible materials and minimizing sound and thermal resistance.
Implementation Method 1
The heating of a forked tube by means of a heating wire can prevent the condensation of humidity in the forked tube
Implementation Method 2
a constant heating power per unit of length, such as one generated by the heating wire
Implementation Method 3
A temperature measurement of the administered air allows to control the heating power of a heating wire or a heater
Implementation Method 4
Because of the heat release to the ambiance of the forked tube the temperature in the forked tube drops approximately linearly with the distance from the compressor
Data Source
AI summary
The invention relates to a nasal cannula for an anti-snoring apparatus, comprising a forked tube pneumatically connected to apertures, which are embodied and positioned in such a way that air can be administered into the nose of a user via these apertures. The nasal cannula further comprises a heating wire extending in the interior of forked tube in such a way that the heating wire can heat the air supplied through the forked tube. The invention moreover relates to a nosepiece and to a Y-shaped element for nasal cannula including internal radius steps at tube connection points. The invention further relates to a nosepiece and to a Y-shaped element having rounded off transition regions. The invention finally relates to a method for avoiding condensation in nasal cannulas. To this end, the gas is heated as it flows through the tubes of a nasal cannula.