Metal filter and method for concentrating cancer cells

US10258906B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10258906-B2
Application numberUS-201715409747-A
CountryUS
Kind codeB2
Filing dateJan 19, 2017
Priority dateOct 14, 2011
Publication dateApr 16, 2019
Grant dateApr 16, 2019

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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

Opening claim text (preview).

The invention claimed is: 1. 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, the through holes have an average aperture ratio of 1% to 10%, and the metal filter comprises a metal selected from the group consisting of gold, silver, aluminum, tungsten, nickel, chrome, and an alloy of two or more of these metals, as a main constituent; 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. 2. The method for concentrating cancer cells according to claim 1 , wherein the thickness of the metal filter is 3 to 50 μm. 3. The method for concentrating cancer cells according to claim 1 , wherein an opening shape of each of the plurality of through holes is a rectangle. 4. The method for concentrating cancel cancer cells according claim 1 , wherein an opening shape of each of the plurality of through holes is a rounded-rectangle.

Assignees

Inventors

Classifications

  • Perforated or foraminous objects, e.g. sieves (C25D1/10 takes precedence) · CPC title

  • Production of aperture devices, microporous systems or stamps · CPC title

  • C25D1/00Primary

    Electroforming · 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

  • of nickel or cobalt · CPC title

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What does patent US10258906B2 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 C25D1/00. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 16 2019 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).