Contact Structure Body for Biological Sample Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
During electrical measurements of biological samples, there is a challenge in preventing biological samples or reagents from flowing into the device, which can damage or contaminate the electrical contact unit and measuring circuit, especially due to capillary action when the sample is liquid, leading to increased maintenance efforts and reduced measurement precision.
Innovation Solution
A contact structure body comprising a separator and a contact probe is used, where the separator physically separates the sample holder from the measuring circuit, and the contact probe electrically connects the electrode to the measuring circuit, preventing fluid ingress and allowing for easy detachment and replacement when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrical contact unit is made exchangeable to avoid damage and contamination from biological sample inflow, then reliability is improved, but the device complexity and maintenance time increase due to frequent exchange operations
Solution Approach 1:
The electrical contact unit is divided into separate components: a contact probe that can be detached and a container with electrode. This segmentation allows the contact probe to be easily replaced without replacing the entire measurement system, resolving the contradiction by enabling simple component exchange that maintains reliability while minimizing complexity
Solution Approach 2:
A separator is introduced as an intermediary component between the biological sample/container and the measuring circuit. The separator includes a through-hole that guides the contact probe, physically blocking biological sample inflow while allowing electrical contact. This mediator prevents contamination and damage without requiring complex exchange mechanisms
2Device complexity
If a fixed electrical contact unit is used to simplify the device structure, then device complexity is reduced, but measurement precision deteriorates due to contamination and damage from biological sample inflow
Solution Approach 1:
The separator acts as a mediator that maintains the simplicity of the fixed structure while preventing biological sample contact with the measuring circuit. The through-hole in the separator provides a controlled pathway that ensures electrical contact without allowing contamination, thus preserving measurement precision without increasing structural complexity
Solution Approach 2:
The separator can be implemented as a thin film or shell structure with a through-hole, providing an effective barrier against biological sample inflow while maintaining electrical conductivity through the contact probe. This thin film approach prevents contamination without adding significant structural complexity
3Ease of repair
If the contact probe is made detachable for easy replacement, then ease of repair is improved, but the device complexity increases due to additional connection interfaces
Solution Approach 1:
The electrical contact unit is segmented into a detachable contact probe and a container assembly. This segmentation enables easy replacement of the contact probe by simply detaching it from the container, improving ease of repair while keeping the connection interface simple and straightforward
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
This solution effectively prevents biological samples or reagents from entering the device, enhancing measurement precision and simplifying maintenance by allowing for quick exchange of components, thus reducing contamination risks and improving device performance.
Implementation Method 1
the biological sample may enter the device via an electrical contact unit due to capillary action etc.
Data Source
Figure 1A
Figure 1B~2A
Figure 2B~3A
AI summary
A contact structure body for use in a measuring device. The contact structure includes a separator that physically separates a sample holder from a measuring circuit, and a contact probe configured to electrically connect an electrode of the sample holder to the measuring circuit, the contact probe comprising. The contact structure body may be part of a system for determining a characteristic of a sample. The system includes a sample holder for holding sample. The sample holder includes an electrode. The system also includes a measuring circuit for measuring at least one property of the sample.