Biological Sample Measurement Device Shutter Mechanism

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Solution Overview

Problem

Conventional biological sample measurement devices are inconvenient to use due to the shutter for preventing dust intrusion being located on the outside of the main body case, making sensor insertion difficult.

Innovation Solution

A biological sample measurement device with a shutter that can open and close within the main body case, driven by a sensor ejection mechanism, which prevents user contact and facilitates easier sensor insertion and ejection, while also being designed to prevent liquid intrusion during cleaning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the shutter is provided on the outside of the main body case to prevent dust intrusion, then dust protection is improved, but sensor insertion becomes difficult and user convenience deteriorates

Engineering Contradiction:

Improvedust intrusion preventionVSAvoidsensor insertion ease

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The shutter is inverted from its conventional external position to an internal position within the main body case. This inversion resolves the contradiction by placing the dust protection mechanism inside the case where it cannot interfere with sensor insertion operations, while still effectively preventing dust intrusion through the sensor insertion opening when the sensor is not in use.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The shutter is nested within the main body case structure, specifically positioned inside the case rather than externally. This nesting allows the shutter to perform its dust protection function while being concealed within the device boundaries, eliminating the interference problem with sensor insertion while maintaining dust prevention capabilities.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Object-affected harmful factors

If the shutter is provided externally to prevent dust intrusion, then dust protection is improved, but user convenience deteriorates due to hand contact with shutter

Engineering Contradiction:

Improvedust intrusion preventionVSAvoiduser convenience

Core Design Contradiction:

Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The shutter position is inverted from external to internal placement within the main body case. This inversion ensures that the shutter is no longer in the user's operational path during sensor insertion, eliminating the problem of hand contact with the shutter while maintaining its dust protection function.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The shutter is extracted from the external surface of the main body case and relocated to the internal space. This extraction removes the shutter from the user interaction zone, preventing accidental contact during operation while preserving the shutter's primary function of preventing dust intrusion through the sensor opening.

Inventive Principle:

Principle #2Taking out (Extraction)

3Ease of operation

If the manipulation body insertion component opening is exposed, then ease of operation is improved, but liquid intrusion risk increases during cleaning

Engineering Contradiction:

Improvemanipulation body insertion easeVSAvoidliquid intrusion

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The manipulation body insertion component is designed with dynamic coverage - the portion disposed outside the main body case automatically covers the opening when the manipulation body is inserted. This dynamic behavior provides protection during cleaning operations while maintaining ease of operation during normal use, as the covering action occurs naturally during the insertion process itself.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The manipulation body itself serves a dual function: it performs its primary insertion function while simultaneously covering the opening to prevent liquid intrusion. This self-service approach eliminates the need for separate protective mechanisms, as the manipulation body's own presence provides the necessary protection during cleaning operations.

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP2741076B1Biological sample measurement device

Publication Date: 2018.04.04 PHC HLDG CORP

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Figure 3(a)~3(b)

AI summary

The present invention pertains to a biological sample measurement device, which is intended to be easier to use. To achieve this object, the present invention comprises a main body case (1) having a sensor insertion opening into which a sensor for measuring biological samples is inserted, a connection terminal (20) provided within the main body case (1) behind the sensor insertion opening, (5) and a shutter 7 that is provided within the main body case (1) between the sensor insertion opening (5) and the connection terminal (20) and that opens and closes the sensor insertion opening (5). This configuration makes the device easy to use.