Breath Analysis System with Disposable Cartridge for User Error Reduction
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Solution Overview
Problem
Breath analysis devices for health programs are inefficient and difficult for users to operate, leading to erroneous measurements and low-quality data due to complex usage procedures and lengthy processing times, which can deter participants from engaging in health programs.
Innovation Solution
A handheld breath ketone capture device with a disposable cartridge system that simplifies the measurement process by automatically switching valves and using a mobile application for real-time feedback, reducing user interaction and enabling easy data logging, while also allowing for multiple analyte measurements with different cartridges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional breath analysis devices are used, then measurement capability is provided, but device complexity and difficulty of operation increase
Solution Approach 1:
The device is divided into modular components: a reusable main body and replaceable disposable cartridges. Each cartridge contains pre-loaded reagents and sampling media, separating the complex analytical functions from the user interface. This segmentation allows users to simply replace cartridges rather than perform complex setup or maintenance procedures.
Solution Approach 2:
All preparation steps are performed in advance during cartridge manufacturing. Reagents are pre-loaded, calibration is pre-performed, and sampling media are pre-processed. When the user receives the device, the cartridges are ready to use immediately without any preparation, eliminating complex setup procedures.
2Productivity
If traditional breath analysis devices are used, then breath ketone measurement is achieved, but processing time increases
Solution Approach 1:
The device replaces traditional mechanical or manual processing steps with automated electronic control. A microprocessor manages the entire measurement sequence, controlling valves, pumps, and sensors automatically. This substitution of mechanical automation for manual operation significantly reduces processing time and eliminates user errors in procedure execution.
3Reliability
If traditional breath analysis devices are used, then data collection is possible, but user error and measurement errors increase
Solution Approach 1:
The device incorporates real-time feedback mechanisms that monitor the measurement process and guide the user through each step. Visual indicators confirm proper cartridge insertion, breathing instructions are provided through displays or audio, and results are immediately validated. This feedback loop ensures users perform steps correctly without requiring extensive training or memory of complex procedures.
Solution Approach 2:
The disposable cartridges are self-contained units that perform their function automatically once inserted. They include self-diagnostic capabilities, self-calibration features, and self-validation of measurement conditions. The system automatically detects and corrects minor deviations, reducing the need for user intervention and minimizing errors caused by improper operation.
Data Source
AI summary
A breath analyte capture device includes a breath input port into which a user exhales a breath sample, and a cartridge insertion port for receiving a disposable cartridge containing an interactant. During exhalation of a breath sample, at least a portion of the breath sample is routed through the cartridge such that the analyte (such as breath acetone) is captured by the interactant. In some embodiments, the concentration of the analyte in the breath sample is measured by monitoring a chemical reaction that occurs in the disposable cartridge. The chemical reaction may be monitored by illuminating the cartridge at each of multiple light wavelengths while measuring reflected light.