# US 10,370,631 B2 · Cell culture package and package containing cell-culture material

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- Number: US 10,370,631 B2
- Document ID: US10370631B2
- Status: Granted
- Kind: B2
- Application number: 14/914,096
- Filed: 2014-11-06
- Published: 2016-07-21
- Granted: 2019-08-06
- Earliest claimed: 2013-11-22
- Assignees: Japan Tissue Engineering Co., Ltd.
- Applicants: Japan Tissue Engineering Co, Ltd.
- Inventors: Makoto Sugiura
- Web page: https://patentgrep.com/patent/US10370631B2

## CPC

- C12M 23/14: {Bags}
- C12M 23/34: {Internal compartments or partitions}
- C12M 23/38: {Caps; Covers; Plugs; Pouring means}
- C12M 23/58: {Reaction vessels connected in series or in parallel (combinations of bioreactors with other apparatus, C12M43/00)}
- C12M 33/04: {by injection or suction, e.g. using pipettes, syringes, needles (pipettes in general B01L3/02)}
- C12M 23/10: {Petri dish (crystallising dishes B01L3/06)}
- C12M: APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; {APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS}

## Abstract

An inner bag of a cell culture package is enclosed in an outer bag such that a rubber stopper is exposed to the outside. A closed space surrounded by the outer surface of the inner bag and the inner surface of the outer bag is sterile. This allows the outer surface of the inner bag, which is used for containing cell-containing deformable materials, to be maintained in a sterile condition. Since the cell culture package can be sterilized before a cell-containing deformable material is placed therein, the sterilization conditions can be relatively easily determined without considering the influence on the cell-containing deformable material. In addition, a holder allows liquid to pass through the bottom surface and side surface of a recess and the bottom surface and the side surface of a cover.

## Claims

### Claim 1

A cell culture package for containing a cell-containing deformable material, including:
an inner bag having a closed inner space,
a seal disposed on the inner bag,
a holder disposed in the inner bag and configured to allow liquid to pass at least partially therethrough, and
an outer bag having a sterilized closed inner space in which the inner bag is enclosed such that the seal is exposed,
wherein the holder has a holder-frame formed by columns and a ring in a predetermined three-dimensional shape and a mesh, through which liquid can pass, attached to the holder-frame,
wherein the columns are arranged in a circumferentially spaced apart relationship, and the ring links an end of each of the columns, and
wherein the mesh is disposed on side, upper, and lower surfaces of the holder-frame.

### Claim 2 (depends on 1)

The cell culture package according to claim 1,
wherein the seal is a rubber stopper,
the holder has a recess configured to allow liquid to pass at least in a bottom surface thereof, and
the cell-containing deformable material is injected into the holder by inserting a needle of a syringe containing the cell-containing deformable material into the rubber stopper and injecting the cell-containing deformable material through the needle into the recess.

### Claim 3 (depends on 2)

The cell culture package according to claim 2,
wherein the recess also allows liquid to pass through a side surface thereof.

### Claim 4 (depends on 2)

The cell culture package according to claim 2,
wherein the holder has a cover covering the recess, and
the cover allows liquid to pass therethrough.

### Claim 5 (depends on 1)

The cell culture package according to claim 1,
wherein a frame is disposed in the inner bag, and
the holder is detachably secured to the frame.

### Claim 6 (depends on 1)

The cell culture package according to claim 1,
wherein a plurality of seals is disposed on the inner bag,
a plurality of holders corresponding to the seals is disposed in the inner bag, and
the inner bag is enclosed in the outer bag such that all the seals are exposed.

### Claim 7 (depends on 1)

The cell culture package according to claim 1,
wherein the inner bag has an opening having the seal disposed therein and sealed together with the seal,
the outer bag is closed along an outer edge except for a portion in contact with an outer surface of the opening of the inner bag, and
the outer surface of the opening of the inner bag and an inner surface of the outer bag in contact with the outer surface of the inner bag are closed by an inter-bag seal having a weaker adhesion than the opening of the inner bag.

### Claim 8 (depends on 1)

A package containing cell-culture material including the cell culture package according to claim 1 and a cell culture material held in the holder.