One-Piece CPAP Cannula Structure for Stable Neonatal Positioning

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Solution Overview

Problem

Conventional CPAP systems for neonates are cumbersome, difficult to maintain in position, and can cause skin irritation and nasal septum damage due to their complex assembly and design, particularly in neonates with smaller heads and nares.

Innovation Solution

A one-piece CPAP cannula device with integrated respiratory tubes, nasal interface, and nasal prongs, featuring a D-shaped cross-section and a U-shaped design that wraps around the head, reducing friction and pressure points, and includes a clamp for secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional multi-piece CPAP systems are assembled together with tapes or pins, then the device can be secured to the patient, but the assembly becomes cumbersome and difficult to maintain in position

Engineering Contradiction:
Improvedevice stabilityVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines multiple separate components (respiratory tubes, nasal interface, and nasal prongs) into a single integrated one-piece structure. This eliminates the need for assembly with tapes or pins, reducing complexity while maintaining secure positioning through the unified design that wraps around the patient's head.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If conventional CPAP systems use multiple separate components, then the device can be adjusted and assembled, but components frequently disconnect and require frequent checking

Engineering Contradiction:
ImproveadjustabilityVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

By integrating the respiratory tubes, nasal interface, and nasal prongs into one continuous piece, the patent eliminates connection points where components could disconnect. The unified structure ensures stable positioning without requiring frequent checks or reassembly.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If conventional CPAP systems use complex assembly with tapes and pins, then the device can be secured, but the assembly process becomes time-consuming and difficult

Engineering Contradiction:
Improvesecuring effectivenessVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The one-piece design allows the entire CPAP system to be applied as a single unit, eliminating the time-consuming process of assembling multiple components with tapes and pins. The integrated structure maintains securing effectiveness while dramatically reducing application time.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If conventional CPAP systems use standard nasal prongs, then the device can occlude the nares, but the prongs cause skin irritation and nasal septum damage

Engineering Contradiction:
Improvepressure deliveryVSAvoidskin irritation
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent modifies the nasal prong design with specific geometric features including angled orientations and rounded tips. These localized design changes distribute pressure more evenly and reduce contact with sensitive areas, eliminating skin irritation and nasal septum damage while maintaining effective pressure delivery.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The nasal prongs feature curved and rounded geometries rather than sharp angles. This spherical/curved design reduces pressure concentration points, preventing skin irritation and nasal septum damage while maintaining the occlusion necessary for pressure delivery.

Inventive Principle:
Principle #14Spheroidality (Curvature)

5Adaptability or versatility

If conventional CPAP systems use separate components that need assembly, then the device can be configured, but the system becomes unwieldy and difficult to position

Engineering Contradiction:
Improveconfiguration flexibilityVSAvoidpositioning ease
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The integrated one-piece structure combines all components into a unified configuration that is inherently easy to position. The design maintains adaptability through its wrapped configuration around the head, while the unified structure eliminates the unwieldiness of assembling and positioning separate components.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12478752B2CPAP cannula device
Publication Date: 2025.11.25 MOHAMED MOHAMED ALY HELMY
  • US12478752B2 patent drawing
  • US12478752B2 patent drawing
  • US12478752B2 patent drawing

AI summary

A continuous positive airway pressure (CPAP) cannula device that comprises two respiratory tubes and a nasal interface comprising two nasal prongs. The two respiratory tubes and the nasal interface may have a D-shaped cross-sectional design in which a flat part thereof rests against a patient's face. The continuous positive airway pressure (CPAP) cannula device may further comprise a one-piece design. The continuous positive airway pressure (CPAP) cannula device may be formed so as to not require complex securing means to secure the device to a patient. The continuous positive airway pressure (CPAP) cannula device may further comprise a clip to secure the respiratory tubes together at a position at the back of a patient's head.