Portable In Vitro Detection System with Fixed Imaging Geometry
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Solution Overview
Problem
Existing rapid screening detection devices are limited in providing real-time, quantitative results, leading to incorrect judgments and unnecessary medical waste, as they rely on unstable image capture methods and expensive equipment, causing inconvenience and delayed diagnoses.
Innovation Solution
A portable in vitro detection system with a closed environment for image capture and transmission to an electronic device, using a camera module, LED light sources, and analysis software for real-time data analysis and comparison with cloud data to generate detailed detection reports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a portable electronic device is used to capture the image of the rapid screening paper, then the device portability is improved, but the image stability and detection accuracy deteriorate due to environmental differences and device variations
Solution Approach 1:
A standardized holder is introduced as an intermediary between the portable electronic device and the rapid screening paper. The holder provides a fixed mounting structure with a through hole that positions the paper at a predetermined distance from the camera, ensuring consistent imaging geometry. This mediator eliminates the variability caused by direct handheld photography while maintaining portability.
Solution Approach 2:
The system controls and standardizes critical imaging parameters including the distance between the rapid screening paper and camera lens (through the holder's fixed structure), lighting conditions (via integrated LED lights), and camera angle (through the holder's geometric constraints). By fixing these parameters, the system achieves measurement precision comparable to laboratory equipment while retaining portability.
2Measurement precision
If specific image equipment is used to capture and analyze the detection results, then the detection accuracy is improved, but the device cost and complexity increase significantly
Solution Approach 1:
Instead of using expensive specialized medical imaging equipment, the system creates a standardized optical copy of the rapid screening paper results using a common portable electronic device camera. The holder ensures the copy is geometrically accurate and consistent, allowing analysis software to process the image data with the same reliability as specialized equipment would provide, but at minimal cost.
Solution Approach 2:
The system replaces expensive, complex, and durable specialized medical imaging equipment with inexpensive, simple, and portable electronic devices. The holder acts as a low-cost, simple structure that enables the cheap device to achieve the precision of expensive equipment. The rapid screening paper itself remains a disposable element, while the imaging system becomes affordable and accessible.
3Measurement precision
If image capture and analysis are performed using external equipment, then the detection precision is improved, but the detection time and waiting period increase
Solution Approach 1:
The system merges the image capture function and image analysis function into a single integrated portable device. The electronic device's camera captures the rapid screening paper image, and the device's processor immediately analyzes the image using embedded analysis software. This combination eliminates the time delay of transferring images to separate analysis equipment, providing both high precision and rapid results within minutes.
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 real-time, accurate analysis of physiological responses and extents, facilitating early diagnosis and treatment, reducing user inconvenience and eliminating the need for expensive equipment.
Implementation Method 1
a photograph image processor, disposed on one side of the detection box for capturing the display image of the-rapid screening paper after detection
Implementation Method 2
the photograph image processor has a lens, a plurality of LED light sources, and a camera module
Data Source
AI summary
A portable and rapid screening detection in vitro detection system includes: an in vitro detector, a detection box, a photograph image processor, a transmission interface control processor, a power unit, and an electronic device. The in vitro detector is in a closed environment, and a detection box is disposed in the in vitro detector, and the detection box having a sample insertion opening for inserting in the rapid screening paper after detection. The photograph image processor is disposed on one side of the detection box for capturing the display image of the rapid screening paper after detection. The transmission interface control processor is disposed in the in vitro detector, for transmitting the display image temporarily stored in the camera module. The power unit is disposed in the in vitro detector, for providing the power required by the in vitro detector.