Strip Guide Cover With Elastic Pressing for Stable IVD Strip Fixing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional in vitro diagnostics (IVD) devices lack components to fix the channel part of the strip, leading to shaking during device movement, which degrades test accuracy and reliability.
Innovation Solution
A strip guide cover is introduced, featuring a main body, guide, and pressing portion with protrusions to secure the strip in place, ensuring close contact with a substrate, thereby reducing shaking and maintaining test accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no fixing components are provided for the channel part of the strip, then the device structure remains simple, but the strip shakes during device movement, degrading test accuracy and reliability
Solution Approach 1:
The pressing portion acts as an intermediary component between the strip and the housing. It includes a pressing protrusion that directly contacts the channel part of the strip, and this protrusion is supported by a tension portion that connects to the housing. This intermediary structure effectively transfers and distributes the fixing force, stabilizing the strip without requiring complex direct attachment mechanisms.
Solution Approach 2:
The tension portion is designed as a flexible elastic body that can deform elastically. This flexibility allows the pressing portion to adapt to slight variations in strip positioning while maintaining consistent contact pressure. The elastic deformation capability provides a compliant fixing mechanism that accommodates manufacturing tolerances and assembly variations without compromising strip stability.
2Reliability
If the strip is not fixed in place, then the device structure remains simple, but shaking occurs during device movement, reducing test reliability
Solution Approach 1:
The pressing portion serves multiple functions simultaneously: it provides fixing force to prevent strip movement, distributes pressure along the channel part, and accommodates positioning variations through elastic deformation. This multi-functional design achieves reliable strip fixation without requiring separate components for each function, thereby limiting the increase in device complexity.
Solution Approach 2:
The tension portion's elastic properties allow it to change its physical state dynamically. During assembly, it deforms to engage with the strip; during operation, it maintains optimal contact pressure; and during movement, it absorbs shocks through elastic deformation. This parameter change capability enables a single component to adapt to different operational requirements without structural modification.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present invention relates to a strip guide cover and an in vitro diagnostics device comprising same, the cover fixing, in a housing, a strip mounted in the in vitro diagnostics device. The strip guide cover, which is disposed in the in vitro diagnostics device in order to fix the strip mounted in the in vitro diagnostics device, comprises: a main body part which covers the upper side of the strip, and which is disposed to be spaced from the strip; a guide part protruding from the main body part so as to form, with the main body part, an arrangement space in which the strip is disposed, and guiding the strip, which enters the arrangement space; and a pressing part which is disposed in the guide part, and which presses the strip disposed in the arrangement space.