Method for measuring analyte
US-2016054223-A1 · Feb 25, 2016 · US
Cell filtration filter
US10704019B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10704019-B2 |
| Application number | US-201916283859-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 25, 2019 |
| Priority date | Dec 20, 2016 |
| Publication date | Jul 7, 2020 |
| Grant date | Jul 7, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
A cell filtration filter that includes a metal membrane part that has a first main surface on which the cells are to be captured and a second main surface that opposes the first main surface. The metal membrane part has a plurality of hole edges that define a plurality of first through holes and a support region that is arranged around the hole edges and supports the hole edges. In the support region of the metal membrane part, a plurality of second through holes, which have smaller openings than the first through holes, are arranged so as to surround the hole edges. On the first main surface of the membrane part, the hole edges are raised with respect to the support region.
First claim
Opening claim text (preview).
The invention claimed is: 1. A cell filtration filter comprising: a metal membrane part that has a first main surface and a second main surface opposing the first main surface, the metal membrane part having a plurality of hole edges that each respectively define a plurality of first through holes and a support region arranged around the hole edges and supporting the hole edges, wherein the support region of the metal membrane part includes a plurality of second through holes, each of the plurality of second through holes arranged so as to surround the hole edges and having smaller openings than the first through holes, and wherein, on the first main surface of the metal membrane part, the hole edges are raised with respect to the support region. 2. The cell filtration filter according to claim 1 , wherein the second main surface of the metal membrane part is flat. 3. The cell filtration filter according to claim 2 , wherein the plurality of second through holes have a polygonal shape. 4. The cell filtration filter according to claim 3 , wherein the plurality of second through holes are arranged in a lattice pattern in the support region. 5. The cell filtration filter according to claim 4 , wherein the first through holes have a circular shape. 6. The cell filtration filter according to claim 5 , wherein a first major axis of the plurality of second through holes is smaller than a second major axis of the plurality of first through holes, and a first interval between adjacent second through holes of the plurality of second through holes is smaller than a second interval between adjacent first through holes of the plurality of first through holes. 7. The cell filtration filter according to claim 1 , wherein the plurality of second through holes have a polygonal shape. 8. The cell filtration filter according to claim 7 , wherein the plurality of second through holes are arranged in a lattice pattern in the support region. 9. The cell filtration filter according to claim 8 , wherein the first through holes have a circular shape. 10. The cell filtration filter according to claim 9 , wherein a first major axis of the plurality of second through holes is smaller than a second major axis of the plurality of first through holes, and a first interval between adjacent second through holes of the plurality of second through holes is smaller than a second interval between adjacent first through holes of the plurality of first through holes. 11. The cell filtration filter according to claim 1 , wherein the plurality of second through holes are arranged in a lattice pattern in the support region. 12. The cell filtration filter according to claim 11 , wherein the first through holes have a circular shape. 13. The cell filtration filter according to claim 12 , wherein a first major axis of the plurality of second through holes is smaller than a second major axis of the plurality of first through holes, and a first interval between adjacent second through holes of the plurality of second through holes is smaller than a second interval between adjacent first through holes of the plurality of first through holes. 14. The cell filtration filter according to claim 1 , wherein the first through holes have a circular shape. 15. The cell filtration filter according to claim 14 , wherein a first major axis of the plurality of second through holes is smaller than a second major axis of the plurality of first through holes, and a first interval between adjacent second through holes of the plurality of second through holes is smaller than a second interval between adjacent first through holes of the plurality of first through holes. 16. The cell filtration filter according to claim 1 , wherein a first major axis of the plurality of second through holes is smaller than a second major axis of the plurality of first through holes, and a first interval between adjacent second through holes of the plurality of second through holes is smaller than a second interval between adjacent first through holes of the plurality of first through holes. 17. The cell filtration filter according to claim 1 , wherein a first major axis of the plurality of second through holes is smaller than a second major axis of the plurality of first through holes. 18. The cell filtration filter according to claim 1 , wherein a first interval between adjacent second through holes of the plurality of second through holes is smaller than a second interval between adjacent first through holes of the plurality of first through holes. 19. The cell filtration filter according to claim 1 , wherein a material of the metal membrane part is selected from gold, silver, copper, platinum, nickel, stainless steel, titanium, palladium, or an alloy thereof. 20. The cell filtration filter according to claim 1 , wherein the plurality of second through holes have a plurality of different polygonal shapes having different numbers of vertexes.
Assignees
Inventors
Classifications
Flat membranes · CPC title
Palladium · CPC title
Nickel · CPC title
Pore shapes · CPC title
of wire gauze; of knitted wire; of expanded metal · CPC title
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Frequently asked questions
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- What does patent US10704019B2 cover?
- A cell filtration filter that includes a metal membrane part that has a first main surface on which the cells are to be captured and a second main surface that opposes the first main surface. The metal membrane part has a plurality of hole edges that define a plurality of first through holes and a support region that is arranged around the hole edges and supports the hole edges. In the support …
- Who is the assignee on this patent?
- Murata Manufacturing Co
- What technology area does this patent fall under?
- Primary CPC classification C12M33/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 07 2020 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).