Implantable Analyte Sensor Data Compression via Statistical Condensation

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Solution Overview

Problem

In-vitro systems for measuring analyte concentrations generate large volumes of data, making it difficult to store and transmit, and existing systems require frequent sensor replacements, which can be cumbersome for users with limited dexterity.

Innovation Solution

A system with a base station that subjects raw data from a connected sensor to statistical analysis to generate condensed data, reducing energy consumption and data volume for transmission, and a sensor carrier unit with a sealed housing for easy handling and wireless communication, allowing for continuous measurement with reduced user effort.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If continuous measurement with high measuring rate is utilized, then measurement precision and currentness are improved, but data volume increases making transmission and storage difficult

Engineering Contradiction:
Improveanalyte concentration measurement accuracyVSAvoiddata volume
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The base station performs preliminary statistical analysis and condensation of raw measurement data before transmission. By pre-processing the data to extract essential information (condensed measuring data) while discarding redundant details, the system maintains measurement precision but significantly reduces data volume for transmission and storage

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system extracts only the most relevant information from raw measurement data through statistical analysis. The base station identifies and transmits only condensed measuring data that represents the essential analyte concentration trends, separating critical information from voluminous raw data

Inventive Principle:
Principle #2Taking out (Extraction)

2Loss of information

If data transmission frequency is increased to maintain data currentness, then information freshness is improved, but energy consumption increases

Engineering Contradiction:
Improvedata currentnessVSAvoidbase station energy consumption
Core Design Contradiction:
Loss of informationVSUse of energy by moving object

Solution Approach 1:

The base station pre-processes and condenses data before transmission, reducing the amount of data that needs to be transmitted frequently. This preliminary condensation allows the system to maintain data currentness with less frequent transmissions, thereby reducing energy consumption

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system changes the parameter of data representation from raw measurement values to condensed statistical data. This parameter transformation reduces data size while preserving essential information, enabling more efficient transmission with lower energy requirements

Inventive Principle:
Principle #35Parameter changes

3Duration of action of stationary object

If sensor replacement is required frequently to maintain measurement continuity, then measurement duration is improved, but ease of operation deteriorates due to user dexterity requirements

Engineering Contradiction:
Improvemeasurement continuityVSAvoidsensor replacement complexity
Core Design Contradiction:
Duration of action of stationary objectVSEase of operation

Solution Approach 1:

The base station is designed as a universal platform that can accommodate multiple sensors over extended periods. By enabling long-term operation with a single sensor and providing robust data management capabilities, the base station reduces the frequency of sensor replacements and simplifies user interaction

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system performs automatic data condensation, analysis, and management at the base station without requiring user intervention for sensor replacement or data processing. The automated operations maintain measurement continuity while eliminating complex user tasks

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20170251922A1System for in-vivo measurement of an analyte concentration
Publication Date: 2017.09.07 ROCHE DIABETES CARE INC
  • US20170251922A1 patent drawing
  • US20170251922A1 patent drawing
  • US20170251922A1 patent drawing

AI summary

The analyte concentration, such as glucose, in a human or animal body is measured with an implantable sensor that generates measurement signals. The measurement signals are compressed through statistical techniques to produced compressed measurement data that can is easier to process and communicate. A base station carries the implantable sensor along with a signal processor, memory, and a transmitter. A display device is also disclosed that can receive the compressed measurement data from the base station for further processing and display.