Ambulatory Enteral Feeding Venting System
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Solution Overview
Problem
Existing enteral feeding systems often lead to pressure buildup in the stomach and intestines, causing discomfort and risk of reflux, especially in pediatric patients, due to the inability to relieve gastric reflux pressure through the feeding tube, which can result in undesirable expulsion of materials and potential aspiration pneumonia.
Innovation Solution
A mechanical compression-based venting system that includes a reflux bag with a vent mechanism, allowing for ambulatory use, enabling patients to move freely while receiving nutrients, as it compresses and expels built-up gas without relying on gravity, thus relieving pressure regardless of patient positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional enteral feeding system is used, then nutrients can be delivered to the patient, but gastric pressure builds up causing discomfort and potential reflux
Solution Approach 1:
The patent extracts the harmful gastric pressure and gas from the stomach by providing a separate venting pathway through the reflux bag. The vent port allows gas to escape from the stomach independently of the nutrient delivery tube, preventing pressure buildup while maintaining reliable nutrient delivery through the original catheter.
Solution Approach 2:
The reflux bag serves as an intermediary component between the stomach and the external environment. It temporarily collects gastric reflux and gas, then gradually expels it through the vent port, mediating the pressure relief process to prevent direct expulsion through the esophagus while maintaining feeding functionality.
2Object-affected harmful factors
If gastric pressure is relieved through traditional burping response, then pressure is released, but reflux materials are expelled through mouth or nose causing aspiration risk
Solution Approach 1:
The patent extracts the reflux pathway from the traditional burping route through the esophagus and separates it into a dedicated venting system. The vent port provides an alternative exit route for gastric gas and reflux materials that bypasses the mouth and nose, eliminating aspiration risk while maintaining effective pressure relief.
Solution Approach 2:
The reflux bag acts as an intermediary collection chamber that captures gastric reflux before it can be expelled through the airway. By temporarily holding the reflux materials and controlling their gradual expulsion through the vent port, the system prevents direct aspiration while still achieving pressure relief.
3Object-affected harmful factors
If a reflux bag system is implemented, then gastric pressure can be relieved, but the system becomes more complex
Solution Approach 1:
The patent merges the venting function with the existing enteral feeding system by integrating the reflux bag into the current catheter and tubing infrastructure. The reflux bag connects to the existing nutrient delivery system, allowing pressure relief functionality to be added without requiring a completely separate system, thus limiting the increase in complexity.
Solution Approach 2:
The reflux bag serves multiple functions: it collects gastric reflux, stores gas temporarily, provides a controlled venting pathway, and prevents aspiration. By consolidating these multiple pressure relief and protection functions into a single component, the system achieves comprehensive gastric management without proportionally increasing overall system complexity.
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 system allows patients to engage in daily activities and sleep without manual intervention, reducing discomfort and improving quality of life by automatically venting gases, thereby enhancing both patient and caregiver sleep and overall functioning.
Implementation Method 1
a bellows mechanism that compresses the bag after venting has occurred, expelling the built-up gas
Data Source
Figure 1~4
AI summary
There is provided a venting system for enteral feeding having a reflux bag in fluid communication with an enteral feeding site on a patient. The bag has a vent that relieves enteral pressure from the patient and is located within a bellows that compresses the refluc bag after the vent relieves. The system does not rely on gravity to urge the liquid in the reflux bag back to the patient so it may be used by sleeping patients who change positions. It may also be placed in a backpack so that the patient may be freed from having to remain seated or prone for long periods of time and can instead lead a more normal lifestyle.