Curved Sensor Chip for Body Fluid Collection

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Solution Overview

Problem

Existing sensor chips are limited in their ability to detect substances in body fluids other than blood, such as tears, and require high sensitivity for electrochemical measurements.

Innovation Solution

A sensor chip with a curved surface designed to collect body fluids and perform chemical or electrochemical measurements, featuring a body fluid collection unit and a sensing unit for precise measurement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flat surface sensor chip is used, then the manufacturing is simple, but the ability to collect body fluids other than blood is limited

Engineering Contradiction:

Improveability to detect substances in various body fluidsVSAvoidsensor chip structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sensor chip employs a curved surface design that conforms to the contours of the living body, enabling effective contact and body fluid collection from various body parts. The curved surface includes a curvature radius configured to match the body's anatomy, allowing the sensor to collect tears, sweat, and other body fluids in addition to blood, thereby resolving the contradiction between versatility and structural simplicity.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Productivity

If the sensor chip contacts the living body directly, then body fluid collection is effective, but damage or discomfort to the living body may occur

Engineering Contradiction:

Improvebody fluid collection efficiencyVSAvoiddamage or discomfort to living body

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The sensor chip utilizes a flexible curved surface structure that can adapt to the living body's contours without causing damage. The flexible design allows the sensor to conform to body shapes while maintaining comfort and avoiding injury, enabling effective body fluid collection from tears, sweat, and other fluids without the harmful effects associated with rigid direct contact.

Inventive Principle:

Principle #30Flexible shells and thin films

3Measurement precision

If high sensitivity measurement is implemented, then detection accuracy improves, but device complexity increases

Engineering Contradiction:

Improvechemical substance detection accuracyVSAvoidsensing unit structure

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The sensor chip implements high sensitivity measurement through localized optimization of the sensing unit. The curved surface sensor includes specifically designed sensing regions with enhanced detection capabilities for chemical substances in body fluids. This local quality approach achieves high measurement precision for detecting substances in tears, sweat, and other body fluids without requiring complex system-wide changes.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12332208B2Sensor chip, sensing apparatus, cover, body fluid collection device, and sensor

Publication Date: 2025.06.17 PROVIGATE KK

AI summary

A sensor chip (30), to be brought close to an organism to collect a body fluid in order to chemically measure the body fluid, is configured such that a surface (100) to be brought close to the organism is curved.