Upper GI Bleeding Monitoring via RGB Colorimetry
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Solution Overview
Problem
Current medical devices lack the ability to automatically and consistently detect re-bleeding in the upper gastrointestinal tract, often requiring secondary gastroscopy procedures that are delayed until significant blood loss occurs, and existing capsule endoscopy solutions are limited by power constraints and interference from gastric contents and food intake.
Innovation Solution
An upper gastrointestinal bleeding monitoring system utilizing a bleeding detecting device that stays in the upper gastrointestinal tract for several days, monitoring the intensity ratios of RGB primary colors to detect re-bleeding and alert medical professionals, comprising a detection device with a signal transmission module and a signal processing device that analyzes these ratios to determine bleeding conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If capsule endoscopy is used to detect re-bleeding, then real-time images of the upper gastrointestinal tract can be provided, but the capsule quickly passes through to the lower gastrointestinal tract and cannot monitor for several days due to power shortage
Solution Approach 1:
The monitoring system is divided into multiple independent detection units, each equipped with its own power source. This segmentation allows the monitoring function to be distributed across multiple units that can operate independently, extending the overall monitoring duration without requiring a single high-capacity power source that would increase power consumption.
Solution Approach 2:
The system employs multiple disposable detection capsules that can be sequentially deployed. When one capsule's power is depleted, additional capsules are released to continue monitoring. This approach extends the total monitoring duration by recovering the monitoring function through sequential deployment of new units rather than requiring a single long-lasting power source.
2Measurement precision
If optical detection is used to detect bleeding, then detection function is provided, but gastric contents and food intake significantly influence the detection and analysis
Solution Approach 1:
The detection system utilizes colorimetric analysis to identify blood by its characteristic color properties. By measuring color changes and comparing them against reference values, the system can distinguish blood from other gastric contents and food particles, maintaining detection accuracy despite the complex gastrointestinal environment.
Solution Approach 2:
The system incorporates feedback mechanisms that continuously monitor detection signals and adjust analysis parameters based on the gastrointestinal environment. By comparing real-time optical signals with baseline data and using algorithmic processing, the system compensates for variations caused by gastric contents and food intake, maintaining precise bleeding detection.
3Reliability
If second gastroscopy is used to check re-bleeding condition, then re-bleeding can be detected, but it is applied only when re-bleeding is confirmed by indirect signs such as fecal occult blood, low blood pressure, or Hematemesis
Solution Approach 1:
The detection system is deployed immediately after the initial gastroscopy procedure, establishing continuous monitoring before any re-bleeding occurs. This preliminary placement allows the system to detect bleeding events as they begin, rather than waiting for indirect signs to manifest, eliminating detection delays while maintaining high reliability.
Solution Approach 2:
The system provides continuous optical monitoring of the upper gastrointestinal tract throughout the at-risk period following initial bleeding treatment. This continuous detection capability ensures that re-bleeding events are captured immediately when they occur, maintaining high reliability while eliminating the time loss associated with waiting for indirect clinical signs.
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
Enables continuous monitoring for re-bleeding, reducing the need for frequent gastroscopy and providing timely alerts, thereby improving patient safety by detecting bleeding conditions earlier and more accurately than existing methods.
Implementation Method 1
an analysis on reflection from body liquid
Implementation Method 2
detect spectrum absorption of body liquid permeating into a detecting optical path
Data Source
AI summary
An upper gastrointestinal bleeding monitoring system includes a detection device and a signal processing device to determine bleeding condition of an upper gastrointestinal tract by using relation of time and intensity ratios of RGB three primary colors. The detecting device is placed to the upper gastrointestinal tract of a patient via his/her mouth or nasal passage and then stay the upper gastrointestinal tract for several days for detection of bleeding. The signal processing device may receive and display signal from the detection device to help medical professionals check if bleeding occurs in an upper gastrointestinal tract. Moreover, a procedure of determination of bleeding in an upper gastrointestinal tract with the upper gastrointestinal bleeding monitoring system is described.