Filter With Thinned Protruding Support To Prevent Cell Clogging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing filters face challenges in preventing clogging due to incomplete through-holes caused by support portions, which can lead to filtration object deformation and death, especially when dealing with cells, as they can dry and die on the filter base portion.
Innovation Solution
A filter design featuring a support portion with a main body portion and a protruding portion in the through-holes, where the protruding portion has a smaller thickness than the main body portion, reducing the opening area of incomplete through-holes and forming a liquid pool to prevent clogging and cell drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a support portion is added to the filter base portion, then the strength and structural stability are improved, but incomplete through-holes are formed causing clogging and cell deformation
Solution Approach 1:
The support portion is designed with differentiated local properties: the main body portion has sufficient thickness for structural support, while the protruding portion has reduced thickness to minimize obstruction of the through-holes. This local differentiation allows the support structure to provide necessary strength while reducing clogging and cell deformation issues.
2Strength
If the support portion thickness is increased, then the structural strength is improved, but the opening area of through-holes is reduced causing clogging
Solution Approach 1:
The support portion is segmented into two distinct parts: the main body portion with greater thickness for structural support, and the protruding portion with smaller thickness that extends into the through-holes. This segmentation allows each part to fulfill its specific function - the main body provides strength while the protruding portion minimally obstructs the through-hole opening area.
3Reliability
If the protruding portion thickness is increased, then the support coverage is improved, but cell drying and death occur due to reduced liquid flow
Solution Approach 1:
The thickness parameter of the protruding portion is specifically optimized to be smaller than that of the main body portion. This parameter change ensures that while the protruding portion provides necessary support coverage within the through-holes, it does not excessively reduce the opening area, thereby maintaining adequate liquid flow to prevent cell drying and death.
Data Source
AI summary
A filter that includes: a filter base portion having a first main surface and a second main surface opposite to the first main surface, the filter base defining a plurality of through-holes communicating between the first main surface and the second main surface; and a support portion on the filter base portion, wherein the support portion includes: a main body portion on the first main surface and including a plurality of fixing portions in some of the plurality of through-holes; and a protruding portion protruding toward an outer side portion of the main body portion in a direction along the first main surface from a fixing portion located on a sidewall side of the main body portion among the plurality of fixing portions, and a thickness of the protruding portion is smaller than a thickness of the main body portion.