Barcode Scanner for Patient Physiological Measurement
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Solution Overview
Problem
Current devices for determining physiological quantities in patients are expensive, complex, and require multiple devices, making them costly and time-consuming to operate, especially for non-professional operators.
Innovation Solution
A barcode scanning device equipped with a light receiving unit and signal processing unit that can determine physiological quantities, such as respiratory frequency, using ambient light and emitting visible or infrared light patterns for alignment, allowing a single device to read barcodes and measure patient data efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a device for determining physiological quantity is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines barcode scanning functionality with physiological quantity measurement capabilities into a single integrated device. The light receiving unit serves dual purposes: reading barcodes and detecting Doppler-induced variations in reflected light for physiological measurements, thereby reducing device complexity while maintaining measurement precision
Solution Approach 2:
The device is designed to perform multiple functions using the same hardware components. The light receiving unit can both scan barcodes and measure physiological quantities through contactless techniques, making the device versatile and reducing the need for separate specialized equipment
2Measurement precision
If multiple devices are used for obtaining patient information and determining physiological quantity, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent merges barcode reading and physiological measurement functions into one device, allowing simultaneous or sequential execution of both tasks without requiring device switching or repositioning, thereby reducing time loss while maintaining data accuracy
3Measurement precision
If experienced operators use the device, then measurement precision is improved, but ease of operation worsens
Solution Approach 1:
The device incorporates automatic processing capabilities where the signal processing unit automatically analyzes the reflected light and determines physiological quantities without requiring manual intervention or interpretation by operators, making the device easy to use while maintaining precision
Solution Approach 2:
The patent replaces complex manual measurement procedures with automated optical detection and digital signal processing. The system automatically processes the reflected light signals to extract physiological information, eliminating the need for skilled manual operation while preserving measurement accuracy
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 solution enables a cost-effective, time-saving, and user-friendly method for medical diagnostic analysis, allowing non-professional operators to easily determine physiological quantities without additional equipment, reducing physical fatigue and improving accuracy.
Implementation Method 1
receiving light reflected from a surface to be sensed of the patient
Implementation Method 2
detecting Doppler induced vibrometric variations of light reflected at an outer surface of the patient
Data Source
AI summary
In order to easily prepare a medical diagnostic analysis of a patient, a barcode scanning device (100) is configured for determining a physiological quantity of the patient. The barcode scanning device (100) comprises a light receiving unit (108) configured for receiving light (219) reflected from a surface to be sensed of the patient, and a signal processing unit (218) configured for determining the physiological quantity of the patient based on the received light (219).


