Anti-Reflux Valve Venting for Neonatal Enteral Gravity Feeding
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Solution Overview
Problem
Existing enteral feeding systems for neonates struggle with gas accumulation in the stomach, leading to discomfort and complications, requiring frequent manual intervention or ineffective passive venting methods that can cause additional issues.
Innovation Solution
An integrated anti-reflux valve with a venting mechanism that allows controlled gas release, utilizing a lightweight ball within a central cavity to manage pressure changes and automatically vent gas into the feeding container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If manual aspiration is used to vent gas from the baby's stomach, then gas accumulation is relieved, but it is time-consuming and requires frequent monitoring which increases workload
Solution Approach 1:
The anti-reflux valve with integrated venting mechanism enables automatic gas venting without requiring manual intervention. The ball valve automatically opens when gastric pressure exceeds a certain threshold, allowing gas to escape, and closes when pressure equalizes, providing self-service gas management
Solution Approach 2:
The patent replaces the manual mechanical aspiration process with an automatic mechanical valve system that uses pressure differential and buoyancy forces to achieve automatic venting, eliminating the need for manual syringe operation
2Object-generated harmful factors
If intermittent venting by opening the feeding tube to air is used, then gas can escape passively, but it is not always effective when gas is trapped within stomach contents
Solution Approach 1:
The ball valve acts as an intermediary mechanism that actively penetrates through the stomach contents to vent gas. The ball's buoyancy allows it to rise through liquid contents and open the valve when gas pressure builds up, ensuring reliable venting even when gas is trapped
3Object-generated harmful factors
If continuous low-pressure suction is applied to the feeding tube, then gas management is more effective, but it can lead to irritation of the stomach lining and excessive removal of stomach contents
Solution Approach 1:
The ball valve provides periodic, on-demand venting rather than continuous suction. The valve opens only when gastric pressure exceeds the buoyant force holding the ball down, allowing gas to escape in controlled bursts, and closes when pressure equalizes, preventing continuous irritation
Solution Approach 2:
The system changes the venting parameter from continuous suction pressure to pressure-threshold-based automatic valve opening. The venting occurs only when pressure differential reaches a specific threshold, providing controlled intermittent venting that avoids the harmful effects of continuous suction
4Object-generated harmful factors
If a traditional anti-reflux valve is used without integrated venting, then reflux is prevented, but gas accumulation cannot be automatically managed
Solution Approach 1:
The patent merges the anti-reflux valve and venting mechanism into a single integrated device. The ball serves dual functions: preventing reflux by blocking the inlet when gastric pressure is high, and enabling venting by rising to open the outlet when gas pressure builds up, eliminating the need for separate components
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
Provides consistent and less invasive gas management, reducing the need for manual intervention and minimizing stress on infants, aligning with the principles of the Newborn Individualized Developmental Care and Assessment Program (NIDCAP) by ensuring a nurturing environment.
Implementation Method 1
a ball (120) positioned within the central cavity (112) wherein the ball (120) is configured to float within the central cavity (112)
Implementation Method 2
ental gravity-feeding systems
Data Source
Figure 1A~1B
Figure 2
Figure 3
AI summary
The present invention relates to an enteral gravity-feeding system, where the venting mechanism is integrated into the anti-reflux valve.