PPG Biosensor Remote Device for Non-Invasive Glucose Monitoring
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Solution Overview
Problem
Current glucose monitoring methods for diabetics involve invasive finger pricking, which is painful and prone to errors, and do not provide accurate, non-invasive measurements of blood glucose levels, along with other vital signs like pulse and oxygen levels.
Innovation Solution
A remote device equipped with a biosensor that uses a PPG circuit to emit light at multiple wavelengths, processing spectral responses to determine oxygen saturation and substance concentrations, and communicates with a television for data display and potential drug administration based on biosensor data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If invasive finger pricking is used for glucose monitoring, then measurement can be obtained, but pain and infection risk increase
Solution Approach 1:
The patent replaces the mechanical invasive finger pricking system with an optical PPG-based sensing system. The PPG circuit emits light through the skin and detects spectral responses to measure glucose levels, oxygen saturation, and other physiological parameters non-invasively, eliminating needles and blood draws while maintaining measurement capability
Solution Approach 2:
The patent introduces light as an intermediary medium between the sensor and the biological tissue. By using light at multiple wavelengths that penetrates the skin and interacts with blood components, the system indirectly measures physiological parameters without direct contact or invasion, reducing pain and infection risk
2Measurement precision
If invasive finger pricking with test strips is used, then glucose measurement is obtained, but measurement error increases due to sample quality and human error
Solution Approach 1:
The patent replaces the manual test strip insertion and chemical reaction system with an automated optical PPG measurement system. The PPG circuit continuously measures spectral responses and processes them through algorithms to determine glucose levels, eliminating manual handling errors, sample quality issues, and chemical strip variability
Solution Approach 2:
The patent implements continuous non-invasive monitoring through the PPG system, which can take multiple rapid measurements without interruption. This continuous action allows for real-time tracking and averaging of readings, improving reliability by eliminating the discrete, error-prone nature of intermittent finger pricking
3Productivity
If multiple finger pricks are performed throughout the day, then continuous monitoring is achieved, but pain and inconvenience increase
Solution Approach 1:
The patent enables continuous monitoring through the PPG system that can repeatedly measure physiological parameters without requiring the user to perform actions. The system continuously emits light and detects spectral responses, providing ongoing monitoring of glucose levels, oxygen saturation, and other parameters without interrupting the user's daily activities
Solution Approach 2:
The patent implements a self-service monitoring system where the PPG device automatically performs measurements without requiring user intervention for each reading. The system autonomously emits light, detects spectral responses, processes data through algorithms, and provides results, eliminating the need for users to repeatedly prick their fingers or handle test strips
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 system provides accurate, non-invasive monitoring of glucose levels and other vital signs, reducing pain and error, and enables automated drug administration, enhancing patient care and convenience.
Implementation Method 1
a PPG circuit configured to emit light at a plurality of wavelengths directed at skin of the user and obtain a plurality of spectral responses at each of the plurality of wavelengths of light reflected from the skin
Implementation Method 2
obtain a plurality of spectral responses at each of the plurality of wavelengths of light reflected from the skin
Implementation Method 3
a temperature sensor configured to obtain a temperature of a user
Data Source
AI summary
A remote device includes a biosensor interface that is configured to collect biosensor data from an integrated biosensor or by receiving biosensor data from one or more external biosensors or other types of sensors either through a wireless connection or a wired connection. The remote device communicates with a television to display the biosensor data on the television. The television may communicate biosensor data to third party, such as a pharmacy or physician's office or service provider.