Molecular detection system and detection method thereof
US-2024141417-A1 · May 2, 2024 · US
Microfluidic device
US11484883B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11484883-B2 |
| Application number | US-201616310529-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 13, 2016 |
| Priority date | Jun 21, 2016 |
| Publication date | Nov 1, 2022 |
| Grant date | Nov 1, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The present invention may provide a microfluidic device including a rotatable body; a first chamber positioned in a direction of an inner wall of the body; a second chamber positioned in a direction of an outer wall of the body from the first chamber; and a backflow prevention unit, and wherein a fluid is transferred from the first chamber to the second chamber, and wherein the backflow prevention unit prevents a backflow of the fluid from the second chamber to the first chamber.
First claim
Opening claim text (preview).
The invention claimed is: 1. A microfluidic device comprising: a body rotatable around a center of the body and having a first wall and a second wall; and a first chamber, a second chamber and a backflow prevention unit disposed between the first wall and the second wall in the body, wherein the first wall is disposed nearer from the center of the body than the second wall, wherein the first chamber is nearer to the first wall than the second chamber and the second chamber is nearer to the second wall than the first chamber, wherein a fluid is transferred from the first chamber to the second chamber, wherein the backflow prevention unit prevents a backflow of the fluid, which is a flow from the second chamber to the first chamber, wherein the backflow prevention unit is a moisture absorbent filling the second chamber, the moisture absorbent is capable of absorbing a filtered fluid, wherein the second chamber has an end portion protruding toward the center of the body, and the moisture absorbent fills the second chamber including the end portion. 2. The microfluidic device of claim 1 , wherein: the moisture absorbent is in a form of powder, and fixed to a support. 3. The microfluidic device of claim 2 , wherein: in the second chamber, the moisture absorbent fixed to the support is stacked. 4. The microfluidic device of claim 3 , wherein: the support includes polyethylene, polyester, nylon or a combination thereof. 5. The microfluidic device of claim 1 , wherein: the moisture absorbent includes natural fibers, acrylonitrile, silica gel, calcium chloride, acrylamide, or combinations thereof. 6. The microfluidic device of claim 1 , wherein: the body is a cylindrical structure rotatable with respect to a center. 7. The microfluidic device of claim 1 , wherein: the second chamber includes an air hole connected to outside air.
Assignees
Inventors
Classifications
Preventing contamination, tampering · CPC title
Specific details about materials · CPC title
Disc shape · CPC title
cylindrical, tube shaped · CPC title
Absorbents; Gels to retain a fluid · CPC title
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- What does patent US11484883B2 cover?
- The present invention may provide a microfluidic device including a rotatable body; a first chamber positioned in a direction of an inner wall of the body; a second chamber positioned in a direction of an outer wall of the body from the first chamber; and a backflow prevention unit, and wherein a fluid is transferred from the first chamber to the second chamber, and wherein the backflow prevent…
- Who is the assignee on this patent?
- Ulsan Nat Inst Science & Tech Unist, Clinomics Co
- What technology area does this patent fall under?
- Primary CPC classification B01L3/502753. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 01 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).