JPS6142882Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a container suitable for freezing various things, storing frozen things, and further thawing them for use.

The most suitable material to be frozen is an artificial liver, which has been adopted as an artificial liver assist device used to assist liver function in patients with liver failure such as fulminant hepatitis. It is preferable to freeze a living liver, especially in order to ensure that the artificial liver can withstand long-term storage and can be used as needed.

This freezing method involves cutting the liver, which has been removed from a person or animal and from which blood has been removed, into small pieces, such as horns, and freezing the liver pieces using helium gas or the like. The present invention relates to a container suitable for use in carrying out such freezing.

Conventionally, this type of container was just a simple utensil without any special innovations.
For this reason, the desired results cannot be obtained even with the instant freezing that is especially required for liver pieces such as those mentioned above, and the amount that can be stored in the container at one time is fixed, and this can be greatly increased or decreased. Moreover, it is not useful when storing frozen items or when using them after thawing, and it is inconvenient that other equipment must be used separately.

The present invention was developed in consideration of the above-mentioned points and attempts to solve the conventional difficulties.The present invention is described in detail by the illustrated embodiment. 1 has its upper part 2
and lower part 3, an upper connecting port 4 and a lower connecting port 5 are provided through the center thereof, respectively.

The connection ports 4 and 5 shown here not only project upward and downward, but also have connection threads 6 and 7 as male screws carved on their outer peripheries.
In this way, perfusion pipes can be connected to the connecting ports 4 and 5 by screwing during blood perfusion, which will be described later, and stoppers 8 and 8' can be screwed into the connecting ports 4 and 5 as shown by the dashed lines in FIG. Although it is possible to close this by fitting it, it is also possible to perform the connection by a simple fitting means without cutting the connecting screw parts 6, 7. 7 can also be formed by a female screw.

Next, the interior of the vessel 1 is defined vertically by two or more horizontally installed mesh plates 9, 9, etc., thereby forming a required number of storage chambers 10. 1. In the case of FIG. 2, only one storage chamber 10 is formed by two mesh plates 9, 9, but in the embodiment shown in FIG. 3, five mesh plates 9, 9 are formed.
... are laid out horizontally and divided into four storage chambers 10, 10....

Here, what is illustrated as the horizontal installation means for the mesh plates 9, 9... is the support ridges 12, 12..., which are provided on the circumferential side wall 11 of the container body 1 and protrude from the inner surface thereof.
The structure is such that the mesh plates 9, 9... are fitted into the support grooves 13 of the mesh plate 9. At this time, the uppermost mesh plate 9 has an object A to be frozen such as a piece of liver on top of it as described later. Since it is not mounted, a small mesh plate may be used to adhesively fix it to the upper inner surface of the container body 1 so as to close the upper connecting port 4, as shown in FIG.

Furthermore, in the present invention, in the circumferential wall 11, an entrance/exit 14 is located at a position corresponding to the storage chambers 10, 10, . . .
In addition, a closing lid 15 is provided which allows the entrance/exit 14 to be opened and closed.

In the illustrated example, the closing lid 15 is rotatably attached by a hinge 16, and 17 indicates a sealing member.
Therefore, although there is one closing lid 15 in FIG. 2, there is only one closing lid 15.
In the figure, there are four storage chambers 10, 10, etc., and 18 in the figure is the operating handle of the closing lid 15;
19 holds the handle 18 in a closed state by locking the handle 18 by rotating the circumferential wall 11.
A locking piece protruding from the top is shown.

Therefore, to use this, open the closing lid 15,
For example, the liver piece A to be frozen is put in through the entrance/exit 14 and placed on the other mesh plates 9, 9 except for the uppermost mesh plate, and then the closing lid 15 is closed and the lower A refrigerant supply pipe (not shown) is connected to the connection port 5.

By doing this, after the refrigerant such as gaseous helium enters the container 1, it is released to the outside world from the upper connection port 4, and at this time, the liver piece A on the mesh plates 9, 9... When it comes into contact with the refrigerant, it freezes instantly.

At this time, in either of the cases shown in FIGS. 2 and 3, the uppermost mesh plate is caused by the refrigerant injected from the lower connection port 5, so that the liver piece on the mesh plate 9 is moved to the upper connection port. It plays a role in preventing involuntary release from 4.

When the freezing process is completed in this way, the upper and lower connecting ports 4 and 5 are closed with caps 8 and 8' as shown in Fig. 2, and in this state they are placed in a refrigerator using liquid nitrogen, for example. You can store it, take it out and carry it with you.

Furthermore, when it is desired to use the frozen liver pieces stored as described above, the caps 8 and 8' are removed and thawed using a prescribed means, and then the perfusion piping of the artificial liver assist device described above is connected to the upper , by connecting to the lower connections 4, 5, the device can be operated, thus allowing the patient's blood to pass through the liver piece and then return to the human body.

As embodied by the illustrated embodiment, the present invention is such that the upper part 2 and the lower part 3 of the container body 1 are connected with pipes for irrigation, etc., and are connected to upper parts thereof which can be closed by stoppers 8 and 8'. The opening 4 and the lower connecting opening 5 are provided through the
The inside of the vessel 1 is defined vertically by two or more mesh plates 9, 9 placed horizontally, and the inside of the vessel 1 is
An inlet/outlet 14 is opened in the peripheral side wall 11 of the housing 11 in correspondence with the storage chamber 10 formed by the above definition, and the inlet/outlet 14 is made openable and closable with a closing lid 15, so that the refrigerant introduced from the lower connecting port 5 can be opened and closed. By discharging the refrigerant from the upper connection port 4, the refrigerant can be brought into rapid contact with the liver pieces on the mesh plate, thereby making it possible to perform desired instant freezing.

Furthermore, since perfusion piping and stoppers 8, 8' can be connected or attached to both the connecting ports 4, 5, when used after thawing as described above, the container can be used as is for the artificial liver assist device. It can be connected and used in a system, and the use of closures 8 and 8' makes handling convenient for storage and transportation, and the uppermost mesh plate prevents the frozen material from being released inadvertently. There's no danger of it getting lost.

[Brief explanation of the drawing]

Fig. 1 is a front view of the freezing container according to the present invention, Fig. 2 is a longitudinal sectional front view of the same, Fig. 3 is a longitudinal sectional front view of the same showing another mode of use, and Fig. 4 is different from Fig. 2. FIG. 7 is a longitudinal sectional front view showing the upper part of the same container according to a different embodiment. 1... vessel body, 2... upper part, 3... lower part, 4...
Upper connection port, 5... lower connection port, 8, 8'... closure, 9... mesh plate, 10... storage chamber, 11...
...Surrounding wall, 14...Entrance/exit, 15...Closing lid.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The upper and lower parts of the vessel are connected to pipes for irrigation, etc., with upper and lower connecting ports that can be closed by plugging, respectively. The interior of the vessel is defined by two or more mesh plates installed horizontally in the upper and lower sides, and an entrance/exit is opened in the circumferential wall of the vessel corresponding to the storage chamber formed by the above-mentioned definition, and the entrance/exit is closed and covered. A container for freezing liver pieces, etc. that can be opened and closed freely. (2) The uppermost mesh plate is fixed to the inner surface of the upper part of the container body in order to close the upper connection port without being used for mounting. Container for freezing liver pieces, etc.