Disposable Lancet and Biosensor for Blood Measurement Safety
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Solution Overview
Problem
Conventional liquid sample measurement devices for biological information, such as blood glucose concentration, often require complex operations and lack efficient mechanisms for replacing disposable components, which can lead to safety and convenience issues due to the reuse of puncturing elements.
Innovation Solution
A liquid sample measurement device design featuring a detachable lancet device and biosensor, both of which are disposable and easily replaceable, allowing for enhanced safety and convenience by ensuring that each puncturing event uses a new lancet device and biosensor, thereby reducing the risk of contamination and infection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If disposable lancet devices and biosensors are used for each puncturing event, then safety is improved by reducing contamination and infection risk, but device complexity increases due to the need for replacement mechanisms
Solution Approach 1:
The device is divided into separable components: a reusable device main body and disposable sub-components (lancet device and biosensor). This segmentation allows the safety-critical parts that contact blood to be easily replaced while keeping the main device structure simple and reusable.
Solution Approach 2:
The patent employs disposable lancet devices and biosensors that are discarded after a single use. This eliminates the need for complex sterilization and safety verification systems, improving overall safety while maintaining simple device architecture through straightforward replacement rather than complex management mechanisms.
2Ease of operation
If disposable lancet devices and biosensors are easily replaceable, then convenience is improved and user burden is reduced, but loss of substance increases due to frequent disposal of components
Solution Approach 1:
By separating the device into reusable and disposable segments, users only need to replace small, inexpensive components (lancet and biosensor) rather than the entire device. This makes the replacement process convenient and simple while minimizing material loss compared to discarding complete devices or complex assemblies.
Solution Approach 2:
The disposable elements (lancet device and biosensor) are extracted as separate, independently replaceable components from the main device body. This extraction allows users to easily remove and replace only the consumed parts without affecting the main device, improving convenience while reducing overall substance loss.
3Ease of operation
If the lancet device and biosensor are configured on the same end of the device main body, then ease of operation is improved by enabling one-hand operation, but device complexity increases due to spatial arrangement constraints
Solution Approach 1:
The lancet device and biosensor are merged into a single operational end of the device main body, allowing both puncturing and measurement functions to be performed from one location. This enables convenient one-hand operation while maintaining simple device structure through functional integration rather than complex multi-location arrangements.
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 design enhances safety and convenience by ensuring that each measurement uses a new lancet device and biosensor, reducing the risk of contamination and infection, while also simplifying the process and reducing user burden by promoting the regular replacement of disposable elements.
Implementation Method 1
a biosensor on which blood from the skin by puncturing is deposited; a measuring section which measures an amount of a substance in the blood by using the biosensor
Data Source
AI summary
This liquid sample measurement device is provided with: a lancet mounting part to and from which a lancet device having a skin contact section for puncturing skin can be attached and detached; a sensor mounting part to which a biosensor, which is spotted with blood that comes out from the punctured skin, can be attached; and a measurement part that uses the biosensor attached to the sensor mounting part to measure the amounts of substances in the blood. The liquid sample measurement device includes a feature that makes it necessary to replace a lancet device that has been attached to the lance mounting part and has punctured skin, each time a lancet device is used to puncture skin.