Cell culture vessel, support jig for cell culture vessel and cell culture method

Patent metadata

Field	Value
Publication number	US-11414637-B2
Application number	US-201816148229-A
Country	US
Kind code	B2
Filing date	Oct 1, 2018
Priority date	Mar 31, 2016
Publication date	Aug 16, 2022
Grant date	Aug 16, 2022

Abstract

A cell culture container includes a container main body comprising a gas-permeable plastic film, and an injection/discharge port. A peripheral portion of the container main body is sealed, and the container main body has a bulging shape on a top surface side of the container main body. A plurality of concave portions serving as cell culture parts are provided on a bottom surface of the container main body.

First claim

What is claimed is:

1. A cell culture container comprising:
a container main body comprising a flexible gas-permeable plastic film; and
an injection/discharge port,
wherein a peripheral portion of the container main body is sealed,
wherein a plurality of concave portions serving as cell culture parts are provided on a bottom surface of the container main body,
wherein the container main body has a bulging shape like a plateau on a top surface side of the container main body so that the top surface is formed into a flat surface and a rim of the top surface is connected to the peripheral portion, whereby a deformation of the bottom surface while cells to be cultured are injected into the container main body together with a culture medium is restrained so as to inhibit inclination of the concave portions provided on the bottom surface,
wherein each of the plurality of concave portions has an opening diameter of 0.3 to 10 mm and a depth of 0.1 mm or more, and is configured to inhibit the movement of the cells in the container main body and to collect the cells in a bottom part of each of the concave portions in order to culture the cells,
and
wherein the flexible gas-permeable plastic film has a thickness of 30 to 200 μm and is capable to maintain the bulging shape and a shape of each of the concave portions through a flexibility of the film.

2. The cell culture container according to claim 1 , wherein a total area of the plurality of concave portions occupying the bottom surface accounts for 30 to 90% of an area of the bottom surface.

3. The cell culture container according to claim 1 , wherein the plurality of concave portions comprise two or more kinds of concave portions having different opening diameters.

4. The cell culture container according to claim 1 , wherein the flexible gas-permeable plastic film has an oxygen permeability of 5000 mL/(m 2 ·day·atm) or more.

5. The cell culture container according to claim 1 , wherein a thickness of the plurality of concave portions is smaller than a thickness of parts of the bottom surface other than the concave portions.

6. A support jig for the cell culture container according to claim 1 , wherein the support jig is able to support a bottom surface side of the container main body without contacting the plurality of concave portions.

7. A cell culture method using the cell culture container according to claim 1 , comprising:
supporting a bottom surface side of the container main body without contacting the plurality of concave portions; and
culturing cells while collecting the cells in bottom parts of the plurality of concave portions.

8. The cell culture container according to claim 1 , wherein the flexible gas-permeable plastic film comprises polyethylene.

9. The cell culture container according to claim 1 , wherein the plurality of concave portions are molded in the bottom surface of the container main body.

Assignees

• Toyo Seikan Group Holdings Ltd

Inventors

• Tanaka Satoshi
• Suenaga Ryo
• Totani Takahiko

Classifications

• C12M23/12 Primary

  Well or multiwell plates (C12M25/04 takes precedence) · CPC title

• C12M1/00

  Apparatus for enzymology or microbiology · CPC title

• C12M23/26

  flexible (flexible containers for laboratory use B01L3/505) · CPC title

• C12M23/14

  Bags · CPC title

• C12M23/08

  Flask, bottle or test tube · CPC title