Bubble Digital Signature Tracking in IV Fluid Lines
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Solution Overview
Problem
Traditional air-in-line sensors in IV systems cannot accurately detect and track air bubbles within fluid lines, leading to incorrect calculations and failure to alert caregivers of non-air secondary substances, resulting in potential medical complications.
Innovation Solution
A system comprising a light source and image capturing device configured to create a digital signature of bubbles, track their movement, and analyze properties like speed, direction, and volume, ensuring each bubble is counted only once, with adjustable frame rates based on fluid flow rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional AIL sensors are used to detect air bubbles, then air detection capability is provided, but measurement precision deteriorates due to inability to track individual bubbles and distinguish trapped bubbles from passing bubbles
Solution Approach 1:
The system creates a digital signature (optical copy) of each detected bubble that includes unique identifying features such as outline, size, and shape characteristics. This digital copy allows the system to track the same bubble across multiple detections without recounting it, thereby improving measurement precision while preserving bubble tracking information
Solution Approach 2:
The system implements feedback by continuously comparing newly detected bubbles against the database of existing digital signatures. When a bubble matching an existing signature is detected, the system recognizes it as a previously tracked bubble and adjusts its counting accordingly, preventing false alarms and improving detection accuracy
2Reliability
If traditional AIL sensors detect trapped oscillating bubbles, then bubble presence is detected, but reliability deteriorates due to multiple counting of the same bubble
Solution Approach 1:
By creating and storing a digital signature of each bubble's unique characteristics, the system can identify when the same trapped bubble is detected again during oscillation. The digital copy serves as a reference to prevent multiple counting, thereby improving reliability of air amount calculations while maintaining accurate bubble counting
Solution Approach 2:
The system replaces the mechanical/physical sensing approach of traditional AIL sensors with an optical imaging system that captures visual information of bubbles. This substitution enables the creation of digital signatures and implements tracking logic that prevents multiple counting of trapped bubbles, improving both reliability and counting precision
3Adaptability or versatility
If traditional AIL sensors are used, then air bubble detection is provided, but adaptability deteriorates due to inability to detect non-air secondary substances
Solution Approach 1:
The optical imaging system serves multiple functions: it can detect and characterize different types of bubbles (air, gas, or other secondary substances) by analyzing their optical properties. The system's ability to capture images and create digital signatures makes it universally applicable to various bubble types, thereby improving adaptability while maintaining reliable caregiver alerts through proper analysis of detected substances
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
This system provides accurate tracking and analysis of secondary substances, preventing false alarms and ensuring safe delivery of fluids by accurately measuring air bubbles, thereby reducing the risk of air embolism and improving patient safety.
Implementation Method 1
a light source positioned adjacent the fluid line for directing light to a part of the fluid line
Implementation Method 2
an image capturing device positioned adjacent the fluid line and configured to capture a first image of the part of the fluid line
Implementation Method 3
The processing system can be further configured to identify a refraction of the light through at least one of the primary substance and the secondary substance
Data Source
AI summary
A system is described that can detect, track and analyze a bubble of a secondary substance contained within a primary substance along a part of a fluid line. For example, the system can detect the presence of the bubble within the primary substance along the part of the fluid line, which can include assigning a digital signature to the bubble. In addition, the system can track the movement of the bubble in order to ensure that the bubble is accounted for only once as it passes through the part of the fluid line. Furthermore, the system can analyze the bubble, such as determine its direction of travel, speed of travel, volume and size.