JPH1119182A - Liquid chemical container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a breakage such as the thermal welding of filling and draining ports with connecting parts, high frequency welding or ultrasonic welding, etc., by providing a slit between the respective connecting parts of a welding part since burden is relieved by means of the slit even when one of a plurality of filling and draining ports is pulled in a different direction from the other. SOLUTION: When a liquid chemical container 1 is produced, two low-density polyethylene-made inflation films are overlapped at first and four ends are welded by thermal welding so as to obtain a container body 2. In this case, welding is executed by leaving the first and the second connecting parts 51 and 52 of the first and the second filling and draining ports 3 and 4. Then, the first and the second filling and draining ports 3 and 4 are inserted to the first and the second connecting parts 51 and 52, fixing is executed between the first filling and draining port 3 and the first connecting part 51 and between the second filling and draining port 4 and the second connecting part 52 by thermal welding, the slit 6 is provided in the middle of the first and the second filling and draining ports 3 and 4 in an upper end welding part 5 and, after that, high pressure steam sterilization is executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical storage container for storing a liquid such as an infusion solution.

[0002]

2. Description of the Related Art Conventionally, when a high-calorie infusion is administered in an infusion therapy, a plastic container provided with a plurality of injection / ejection ports has been used. This plastic container is formed by inflation molding of a thermoplastic material such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer or the like into a tubular shape, and includes upper and lower ends or left and right ends, except for a connection portion of an injection port. The four ends are treated by heat fusion, high frequency fusion, ultrasonic fusion, or the like. In addition, the injection port has a cap with a rubber stopper sealed at one end, and is formed with an injection pipe having an opening at the other end, and is inserted into the connection portion of the injection port from the opening. It is fixed by heat fusion, high frequency fusion, ultrasonic fusion or the like. This plastic container contains a basic solution such as a high-calorie infusion solution, and one of a plurality of injection / discharge ports is used for discharging, and the other is used for injecting a mixing solution such as amino acids and vitamins. Used in

[0003]

However, in a conventional plastic container, when a large amount of liquid material is contained in a large-capacity plastic container, a plurality of injection heads directed in the same direction are used. When one of the ejection ports is lifted, a load is applied to the connection portion to which the lifted ejection port is fixed, and the operability is deteriorated, and at the same time, the connection portion is damaged such as cut or tear. There is a risk. The present invention has been made in view of the above problems, and an object of the present invention is to provide a plastic chemical storage container that does not burden a connection part.

[0004]

According to the present invention, there is provided a container body having a fusion portion in which films are stacked and fused, and a plurality of injection / discharge ports connected to the container body. Each of the application ports is provided with a slit between the respective connection portions of the fusion portion in the chemical solution storage container connected to the container main body via the respective connection portions provided in the fusion portion. It is a chemical | medical solution storage container characterized by the above-mentioned.

[0005] The present invention is preferably a container body for accommodating a drug solution having a fusion portion in which the opening portion of the bag body having at least one opening portion is closed by fusion, and facing the container body in substantially the same direction. A plurality of pouring / discharging ports connected to each other, wherein each of the plurality of pouring / discharging ports is connected to the container main body via each connecting portion provided at the fusion splicing portion. A slit is provided between each of the connecting portions of the fusion-bonded portion.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a chemical solution storage container 1 comprising a container body 2, a first injection / discharge port 3 and a second injection / discharge port 4.
The container body 2 is formed by fusing four ends of a soft plastic inflation film by heat fusion, high frequency fusion, ultrasonic fusion, or the like. The upper end fusion portion 5 is formed by heat fusion, high frequency fusion, or ultrasonic wave except for first leaving the first connection portion 51 and the second connection portion 52 of the first injection port 3 and the second injection port 4. After a process such as fusion is performed, the first injection port 3 and the second injection port 4 are inserted, and then heat fusion is performed.
Processing such as high-frequency fusion or ultrasonic fusion is performed. The soft plastic used for the container body 2 is not particularly limited, and examples thereof include thermoplastic plastic materials such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, and vinyl chloride. Is also good.

The first injection / discharge port 3 comprises a first injection / discharge tube 31 having both ends opened and a first cap 32. The first cap 32 has a sealing member such as a rubber stopper therein. (Not shown) is inserted, and one opening of the first injection / discharge tube 31 is liquid-tightly fixed. Similarly, the second injection / discharge port 4 includes a second injection / discharge tube 41 and a second cap 42. A first injection / discharge tube 31, a second injection / discharge tube 41,
The material of the first cap 32 and the second cap 42 is not particularly limited, and includes hard plastics such as polypropylene and polyethylene. The material of the sealing body such as a rubber stopper is not particularly limited, and isoprene rubber,
Examples thereof include butyl rubber, silicone rubber, and thermoplastic elastomer rubber.

The chemical liquid storage container 1 has a first connection portion 51 and a second connection portion 52 of the upper end fusion portion 5 provided on the container body 2.
The end of the first injection port 3 and the second injection port 4 on the side where the cap is not provided is inserted and fixed by a process such as heat fusion, high frequency fusion, or ultrasonic fusion. Thereafter, a U-shaped slit 6 is formed at a substantially intermediate position between the first connection portion 51 and the second connection portion 52 of the upper end fusion portion 5. In addition, a U-shaped slit 6 is previously formed in the upper end fused portion 5.
After molding, the first port 3 and the second port 4 may be fixed. Thereafter, the liquid medicine container 1 is filled with the liquid agent. Although not particularly limited, the permissible amount of the drug solution container 1 is about 1.0 to 4.0 liters in volume and about 1000 to 4000 g in weight.

The shape of the slit 6 is not particularly limited. In addition to the short U-shape shown in FIG. 1, a long U-shape shown in FIG. 2 and a cut having no width shown in FIG. One having a round hole at the end and the rectangular one shown in FIG. 4 can be mentioned. The dimensions such as the length and width of the slit 6 can be arbitrarily set according to the width, length and hardness of the upper end fused portion 5 and the weight of the chemical storage container 1 when the liquid agent is filled. Although not particularly limited, specifically, a length of 3 to 10 mm and a width of 1 to 10 mm
Set within the range.

When the infusion therapy is performed, the medicinal solution storage container 1 is hung or settled and fixed by the slit 6, and the first and second injection and discharge ports 3 and 4 are separately provided from the same direction. When the tubes are connected and one of them is directed to another direction, or when another tube is connected from each different direction, the first injection / discharge port 3 and the second injection / discharge port 4 are separated by the slit 6. Can face in the direction of the tube together with the connection part 51 and the connection part 52.
Therefore, since the load on the first connection part 51 and the second connection part 52 is reduced, as shown in the following test example, the first injection port 3 and the connection part 51, the second injection port 4 It is possible to prevent the thermal fusion, the high frequency fusion, the ultrasonic fusion or the like of the connecting portion 52 from being damaged.

In the present invention, the number of injection ports need not be limited to two. Further, at that time, it is not necessary to provide a slit between all the injection / discharge ports, and a slit may be provided only between the necessary injection / discharge ports.

(Test Examples) Test examples will be described below to explain the effects of the present invention. First, the chemical storage container 1 shown in FIG. 1 was produced. First, two low-density polyethylene blown films were laminated and the four ends were fused by heat fusion to obtain a container body 2. At this time, the first connection port 51 and the second connection port 52 of the first injection / ejection port 3 and the second injection / ejection port 4 were fused while leaving them. Then, the first injection / discharge port 3 and the second injection / discharge port 4 are inserted into the first connection portion 51 and the second connection portion 52, and the first injection / discharge port 3 and the first connection portion 51, the second The injection / ejection port 4 and the second connection part 52 were fixed by heat fusion, and a slit 6 was provided in the upper end fusion part 5 between the first injection / ejection port 3 and the second injection / ejection port 4. The width a of the upper end fusion part 5 is 15 mm, and the length of the slit 6 is 10 m.
m, the width was 4 mm, and the distance b between the first port 3 and the second port 4 was 44 mm. After that, 106 ° C,
The autoclave was subjected to high pressure steam sterilization at 0.8 kgf / cm ² for 25 minutes.

Next, a comparative example was prepared in the same manner as above except that the slit 6 was not provided, and high-pressure steam sterilization was performed in the same manner.

The first injection / ejection port 3 of the chemical liquid storage container 1 is fixed, and the second injection / ejection port 4 is set at 500 mm / min. In the direction opposite to the slit 6 (perpendicular to the longitudinal direction of the injection / ejection port). The maximum load at which any of the injection ports or connection portions was damaged was measured by pulling at a speed. As a result, the average value of 20 measurements was 26.3 kg. Similarly, as a result of measurement in the comparative example, the average value of 20 measurements was 18.2 kg.

[0015]

According to the liquid medicine container of the present invention, the load can be reduced by the slit even if one of the plurality of injection / ejection ports is pulled in a different direction from the other. And breakage such as thermal fusion, high frequency fusion, or ultrasonic fusion of the connection portion can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view of a chemical storage container of the present invention.

FIG. 2 is a partially enlarged view of another shape (longer U-shaped type) of a slit provided in the drug solution storage container of the present invention.

FIG. 3 is a partially enlarged view of another shape (a round hole type at a cut end) of a slit provided in the chemical solution storage container of the present invention.

FIG. 4 is a partially enlarged view of another shape (rectangular type) of a slit provided in the drug solution storage container of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chemical storage container 2 Container main body 3 1st pouring and discharging port 31 1st pouring and discharging tube 31 32 1st cap 4 2nd pouring and discharging port 41 2nd pouring and discharging tube 31 42 2nd cap 5 Top end fusion Attachment part 51 First connection part 52 Second connection part 6 Slit

Claims (1)

[Claims] 1. A container body having a fusion portion where films are stacked and fused, and a plurality of injection / discharge ports connected to the container body, wherein each of the plurality of injection / discharge ports is formed by the fusion bonding. A liquid medicine storage container connected to the container body via each connection part provided in the part, wherein a slit is provided between each of the connection parts of the fusion bonding part. Storage container.