Enteral Feeding Reflux Detection and Automatic Evacuation
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Solution Overview
Problem
Existing methods for managing enteral feeding in patients are inadequate in preventing aspiration pneumonia due to reflux, as they rely on manual GRV monitoring, which is ineffective in predicting and addressing reflux events, leading to gastric contents entering the esophagus and lungs.
Innovation Solution
A system with sensors to detect reflux events and automatically pause enteral feeding, redirecting gastric contents to an external evacuation reservoir using a multi-channel connector with an inflatable balloon to seal off the esophagus, preventing gastric contents from entering the lungs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual GRV monitoring is used to assess enteral feeding safety, then healthcare professionals can evaluate gastric residual volume, but the system cannot predict or prevent reflux events in real-time, leading to aspiration pneumonia risk
Solution Approach 1:
The system performs preliminary detection of reflux events using sensors (pH, impedance, pressure) before aspiration pneumonia can occur. The automated system continuously monitors gastric contents and triggers evacuation procedures in advance, rather than waiting for manual GRV assessment to indicate a problem.
Solution Approach 2:
The system implements continuous feedback through sensors that monitor pH levels, impedance, and pressure in the digestive system. This real-time feedback enables the automated control unit to detect reflux events immediately and trigger the evacuation sequence, eliminating the delayed feedback inherent in manual monitoring.
2Reliability
If an automated reflux detection and evacuation system is implemented, then real-time prevention of aspiration pneumonia is achieved, but the device complexity increases with multiple sensors, tubes, and control mechanisms
Solution Approach 1:
The system uses a multi-channel connector that serves multiple functions: it connects the enteral feeding tube, evacuation tube, and gastro tube, and can establish different fluid channels (forward and reverse) depending on the detected condition. This multi-functionality reduces the need for separate dedicated devices for each function.
Solution Approach 2:
The system combines multiple monitoring functions (pH sensing, impedance measurement, pressure detection) into a single integrated automated control system that manages both feeding and evacuation through a unified multi-channel connector platform, reducing overall system complexity despite the multiple components involved.
3Productivity
If enteral feeding is continuously delivered to patients, then nutritional support is maintained, but gastric contents can back-flow into the esophagus and lungs causing aspiration pneumonia
Solution Approach 1:
The system introduces an intermediary evacuation system that acts as a protective mechanism between the gastric contents and the esophagus/lungs. When reflux is detected, the intermediary evacuation tube actively removes gastric contents before they can migrate to harmful locations, while the multi-channel connector mediates the switching between feeding and evacuation modes.
Solution Approach 2:
The system applies preliminary anti-action by detecting reflux events and triggering evacuation before gastric contents can reach the esophagus and lungs. The automated system proactively counteracts the harmful back-flow by establishing a reverse fluid channel through the multi-channel connector and activating the evacuation tube in advance of potential aspiration.
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 effectively reduces the risk of aspiration pneumonia by automatically detecting and managing reflux events, pausing feeding, and redirecting gastric contents to an evacuation reservoir, thereby preventing gastric contents from entering the esophagus.
Implementation Method 1
receiving electrical signals outputted by at least one reflux event sensor disposed within a digestive system of a patient
Implementation Method 2
redirecting gastric contents to an external evacuation reservoir using a multi-channel connector with an inflatable balloon to seal off the esophagus
Data Source
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AI summary
There is provided a system for managing reflux during an enteral feeding, comprising: (i) a non-transitory memory having stored thereon a code for execution by at least one hardware processor of a computing device, the code comprising: code for receiving electrical signals outputted by at least one reflux event sensor disposed within a digestive system of a patient; code for determining a gastric reflux event based on an analysis of the electrical signals; code for outputting instructions to pause enteral feeding of the patient by a feeding controller that regulates enteral feeding of the patient using an enteral feeding tube positioned within the digestive system of the patient; and (ii) an evacuation controller that directs back-flow of digestive contents from the digestive system of the patient to an external evacuation reservoir through an evacuation tube.