Nasogastric Tube with Camera and Vacuum Suction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Nasogastric tubes (NGTs) pose risks of reflux, aspiration pneumonia, and tissue damage due to excessive gastric pressure and reflux, leading to complications such as ventilator-associated pneumonia (VAP), which is a significant concern in intensive care units.
Innovation Solution
A nasogastric tube design featuring a main lumen with peripheral vacuum lumens and suction ports that apply localized vacuum to prevent reflux and aspiration, combined with an imaging system for real-time monitoring and adjustment to minimize tissue damage and optimize tube placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a nasogastric tube is used for feeding and gastric decompression, then nutritional support and metabolic stabilization are achieved, but the risk of reflux and aspiration pneumonia increases
Solution Approach 1:
The tube is divided into multiple functional segments: a first lumen for feeding, a second lumen for gastric decompression, and multiple suction ports distributed along the tube. This segmentation allows simultaneous or independent operation of feeding and decompression functions, preventing reflux while maintaining nutritional support.
Solution Approach 2:
Suction ports are strategically positioned at specific locations along the tube, including near the distal end and at intermediate positions. This local placement of suction capability ensures that reflux can be prevented at critical points where pressure differentials most strongly promote aspiration, without interfering with feeding delivery.
2Stability of the object's composition
If the nasogastric tube anchors in the esophagus to prevent displacement, then tube stability is improved, but tissue damage and erosion occur
Solution Approach 1:
The harmful anchoring function is extracted from the tube body. Instead of the tube itself causing erosion through anchoring, separate suction ports are provided that can actively manage reflux and reduce pressure on the esophageal tissue, thereby preventing erosion while maintaining stability.
Solution Approach 2:
The suction ports act as intermediaries between the gastric pressure system and the esophageal tissue. By providing a controlled pathway for pressure equalization and reflux removal, they mediate the interaction between the tube and esophageal wall, preventing direct harmful contact and erosion.
3Object-affected harmful factors
If gastric decompression is applied to reduce excessive pressure, then the risk of VAP decreases, but the complexity of the tube system increases
Solution Approach 1:
The nasogastric tube is designed with multi-functionality: the first lumen provides feeding, the second lumen provides gastric decompression, and the suction ports provide reflux prevention. This universal design consolidates multiple functions into a single device, reducing the need for separate tubes and overall system complexity despite the added capabilities.
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 design significantly reduces the risk of reflux and aspiration, thereby decreasing the incidence of VAP and tissue damage, while allowing for effective feeding and gastric decompression.
Implementation Method 1
at least four vacuum lumens peripherally surrounding said main lumen, at least four suction ports for sealingly drawing an inner wall of an esophagus thereagainst
Data Source
AI summary
A system comprising: a nasogastric tube comprising: (a) a main lumen having one or more proximal connectors for connecting to a source of substances or pressure, (b) at least four vacuum lumens peripherally surrounding said main lumen, (c) at least four suction ports for sealingly drawing an inner wall of an esophagus thereagainst, each of said at least four suction ports associated with a different one of said four vacuum lumens, wherein said at least four suction ports are distributed between at least two different locations along a longitudinal axis of said nasogastric tube; and an imaging system for capturing and rendering one or more images of an area accessible by said tube, said imaging system comprising: (d) a camera disposed at a distal end of said nasogastric tube, for capturing said images; (e) an illuminator disposed at said distal end of said nasogastric tube, and (f) a processing unit provided at a proximal end of said nasogastric tube, that is configured to receive and process said captured images, render said processed images on a display screen, and provide a camera control signal to control said camera and a light control signal to control said illuminator.