Bio Sensor With Replaceable Needle Module For Continuous Monitoring
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Solution Overview
Problem
Existing bio signal measurement devices, such as wearable devices and glucometers, face limitations in the types of bio signals they can measure and precision, and require invasive procedures like blood collection for each measurement.
Innovation Solution
A bio sensor apparatus with a separable sensor module containing a needle sensor that can be easily replaced, coupled with a main body featuring a controller and auxiliary sensors for continuous bio signal measurement, allowing for improved usability and manufacturability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wearable device is used to measure bio signals, then the measurement can be performed continuously without blood collection, but the precision and types of bio signals that can be measured are limited
Solution Approach 1:
The device is divided into a reusable main body and a replaceable sensor module. The sensor module contains the needle sensor that penetrates the skin for continuous measurement, while the main body houses the control and processing components. This segmentation allows the needle sensor to remain inserted for continuous monitoring while the main body can be easily replaced or serviced.
Solution Approach 2:
The sensor module is designed to be compatible with multiple types of needle sensors for measuring different bio signals (glucose, cholesterol, lactate, etc.). The main body can work with various sensor modules, providing multi-functionality and allowing continuous measurement of different types of bio signals without requiring separate devices.
2Measurement precision
If a glucometer is used to measure blood glucose levels, then precise measurement can be achieved, but blood collection is required each time measurement is performed
Solution Approach 1:
The needle sensor is pre-loaded into the sensor module before use. The sensor module is prepared in advance with the needle sensor already positioned and connected, so that when the user wants to measure, they simply attach the pre-prepared sensor module to the main body. This eliminates the need for blood collection at the moment of measurement while maintaining precision.
Solution Approach 2:
The sensor module is designed to be self-contained and self-replacing. Once the needle sensor has been used or needs replacement, the entire sensor module can be easily detached and replaced by the user without requiring complex procedures or professional assistance. The module automatically connects to the main body upon attachment.
3Ease of repair
If the sensor module is separably coupled to the main body, then the needle sensor can be easily replaced, but the device complexity increases
Solution Approach 1:
The needle sensor is extracted as a separate, replaceable component within the sensor module. The sensor module itself can be detached from the main body, and the needle sensor can be replaced within the module or by replacing the entire module. This extraction simplifies replacement procedures while the coupling mechanism between sensor module and main body uses simple magnetic and mechanical features rather than complex connections.
Solution Approach 2:
The coupling interface between the sensor module and main body is designed with localized magnetic attraction and mechanical guide features at specific points. The coupling groove and protrusion provide precise alignment, while magnets positioned at specific locations provide secure attachment. This localized design achieves reliable coupling without requiring complex mechanisms across the entire device.
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 continuous bio signal measurement with enhanced precision and reduced maintenance costs by allowing easy replacement of the needle sensor, improving user experience and manufacturing efficiency.
Implementation Method 1
the controller may measure an electric current flowing between the first electrode portion and the second electrode portion
Data Source
AI summary
Disclosed is an apparatus for measuring bio signals. The apparatus for measuring bio signals includes: a sensor module configured to include a needle sensor to be inserted into the skin; and a main body to which the sensor module is separably coupled, and which is configured to include a controller controlling the sensor module to measure a bio signal through the needle sensor, once the sensor module is coupled.