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Metal filter and method for concentrating cancer cells
US2017128858A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017128858-A1 |
| Application number | US-201715409747-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 19, 2017 |
| Priority date | Oct 14, 2011 |
| Publication date | May 11, 2017 |
| Grant date | — |
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- Title
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Abstract
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A metal filter includes a plurality of through holes. An opening shape of each of the plurality of through holes is a rectangle or rounded-rectangle and a length of a short side of the rectangle or a rounded rectangle is 5 to 15 μm. A method for concentrating cancer cells using the metal filter includes separating cancer cells from blood and blood cell constituents by passing blood, red blood cells, white blood cells, and platelets through the plurality of through holes while capturing cancer cells to concentrate the cancer cells.
First claim
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1 . A metal filter having a plurality of through holes, wherein an opening shape of each of the plurality of through holes is a rectangle or rounded-rectangle and a length of a short side of the rectangle or a rounded rectangle is 5 to 15 μm. 2 . The metal filter according to claim 1 , wherein the metal filter comprises a metal selected from the group consisting of gold, silver, aluminum, tungsten, nickel and chrome and alloys of these metals as the main constituent. 3 . The metal filter according to claim 1 , wherein the through holes have an average aperture ratio 0.1% to 50%. 4 . The metal filter according to claim 1 , wherein the thickness of metal filter is 3 to 50 μm. 5 . The metal filter according to claim 1 , wherein an opening shape of each of the plurality of through holes is a rectangle. 6 . The metal filter according to claim 1 , wherein an opening shape of each of the plurality of through holes is a rounded-rectangle. 7 . The metal filter according to claim 1 , wherein the through holes have a size and shape configured to allow blood, red blood cells, white blood cells, and platelets to pass through while capturing cancer cells to allow for concentration of cancer cells. 8 . A method for concentrating cancer cells, comprising: providing a metal filter having a plurality of through holes, wherein an opening shape of each of the plurality of through holes is a rectangle or rounded-rectangle and a length of a short side of the rectangle or a rounded rectangle is 5 to 15 μm; and separating cancer cells from blood and blood cell constituents by passing blood, red blood cells, white blood cells, and platelets through the plurality of through holes while capturing cancer cells to concentrate the cancer cells. 9 . The method for concentrating cancer cells according to claim 8 , wherein the metal filter comprises a metal selected from the group consisting of gold, silver, aluminum, tungsten, nickel and chrome and alloys of these metals as the main constituent. 10 . The method for concentrating cancer cells according to claim 8 , wherein the through holes have an average aperture ratio of 0.1% to 50%. 11 . The method for concentrating cancel cells according to claim 8 , wherein the thickness of the metal filter is 3 to 50 μm. 12 . The method for concentrating cancel cells according to claim 1 , wherein an opening shape of each of the plurality of through holes is a rectangle. 13 . The method for concentrating cancel cells according to claim 1 , wherein an opening shape of each of the plurality of through holes is a rounded-rectangle.
Assignees
Inventors
Classifications
Production of aperture devices, microporous systems or stamps · CPC title
Methods of manufacture, assembly or production · CPC title
Perforated or foraminous objects, e.g. sieves (C25D1/10 takes precedence) · CPC title
- A61M1/36Primary
Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation {; Extra-corporeal blood circuits} · CPC title
- B01D29/012Primary
Making filtering elements (making bag, cage, hose, tube, sleeve or like filtering elements B01D29/111) · CPC title
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- What does patent US2017128858A1 cover?
- A metal filter includes a plurality of through holes. An opening shape of each of the plurality of through holes is a rectangle or rounded-rectangle and a length of a short side of the rectangle or a rounded rectangle is 5 to 15 μm. A method for concentrating cancer cells using the metal filter includes separating cancer cells from blood and blood cell constituents by passing blood, red blood c…
- Who is the assignee on this patent?
- Hitachi Chemical Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification A61M1/36. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu May 11 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).