JPH09108301A - Medical container and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical container easily mountable on a wall and highly safe and economical in its manufacture by opening a discharge hole consisting of an elastic member and a retaining material for retaining the elastic member to the container, attachable to the wall of the container in an airtight state against a liquid learage between the wall of the container and the elastic member. SOLUTION: When using a medical container 1, first a gripping member for a peripheral edge sealing part is caused to hold the cylindrical part of a retaining material 6 for a discharge hole. Consequently, the container 1 is distorted resulting in the generation of a void in the container 1, so that it is possible to store and retain the tip of a communicating needle 11 in the void part 1A. Next, a sterile seal is stripped from the cylindrical part, and the communicating needle 11 for drip infusion is punctured into a rubber member 6. An infusion liquid 3 in the container 1 is flown into a patient through the needle 11. In this case, the needle 11 can be easily punctured through a rubber member 5 and an outer wall 2A. As the rubber member 5 is retained airtightly against a liquid leakage on the outer wall 2A, the infusion liquid 3 does not seep out of a puncture hole opened in the container wall 2A running through a space between the rubber member 5 and the container 1 to outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical container such as an infusion bag used for drip injection.
More specifically, the present invention relates to a medical container in which a communication needle for drip or the like is connected and an outlet for discharging an infusion solution in the container can be easily and accurately attached.

[0002]

2. Description of the Related Art Generally, a medical container such as an infusion bag or a container is a non-constant volume plastic container having a flexible wall. Examples of the resin for such a container include linear low-density polyethylene resin, high-density polyethylene resin, polypropylene resin, soft polyester resin, chlorinated polyethylene resin, vinyl chloride resin, ethylene-vinyl acetate copolymer, and other flexible materials. Rich in materials are used. In addition, a container molded product is generally formed by cutting two extruded stretch-molded sheets or films, or an inflation-molded tubular sheet into a predetermined size, and heat-sealing the peripheral edges thereof. . Recently, blow molding resin containers have already been provided.

Further, the medical container is provided with a discharge port for taking out an infusion solution at the time of drip, and conventionally, the discharge port is made of a molded product of a resin mouth member. The mouth member is inserted between the two sheets forming the container body, and the outer peripheral wall of the mouth member is liquid-tightly fixed to the inner surface of the sheet by heat welding. Further, the peripheral edges of the sheets are heat-sealed almost at the same time, and an infusion solution or the like is filled in the container body through the opening of the mouth member. After filling the liquid, a rubber stopper is attached to the opening of the resin mouth member, and the rubber stopper is completely liquid-tightly fixed to the mouth member, so a ring-shaped stop member is fixed to the resin mouth member by sandwiching the rubber stopper. To be done. Then, the entire container is autoclaved.

[0004]

However, the conventional outlet of the medical container is extremely complicated in manufacturing, and there is a problem in economical efficiency and safety. Conventionally, the mouth member of the discharge port is tubular and the sheet is heat-sealed to the outer peripheral wall in a liquid-tight manner. However, the sealing surface is curved and the sheet comes into contact with the sealing means. Therefore, liquid-tight heat-sealing is difficult, and pinholes sometimes occur. Further, the heat-welded portion of the sealing means is also curved and the durability of the apparatus is deteriorated. Further, the inner surface of the rubber stopper of the discharge port exists inside the container body and is always in contact with the infusion solution during storage. The rubber stopper contains a vulcanizing agent and its accelerator in order to enhance the elastic restoring force and liquid tightness, and these may affect the infusion. For this reason, the rubber stopper is limited in its components and causes a problem in its functionality. Furthermore, since the container is subjected to high-pressure steam sterilization after the discharge port is attached, there is a problem that each member of the discharge port is required to have considerable heat resistance and the range of its selectivity is limited.

Therefore, an object of the present invention is to provide a medical device which is easy to attach to a container and has a discharge port which can be easily attached even after high-pressure steam sterilization of the container, and which is extremely safe and economical in manufacturing. To provide a container.

[0006]

The present invention has a plastic container wall through which a communicating needle for discharging a liquid can be pierced and has an area through which the communicating needle can be pierced. An elastic member capable of maintaining the piercing hole in a liquid-tight manner by pressing the outer peripheral wall of the communicating needle via an elastic force, and the elastic member being fixedly placed on the container wall, and the container wall and the elastic member. The above object is achieved by providing a medical container characterized in that it has a discharge port composed of a stopper member that is liquid-tightly attached to the container wall.

As shown in FIG. 4, the outer wall 2 of the container 1 is a flexible sheet through which a communicating needle is pierced. Even if the communicating needle 11 is pierced through the rubber member 5 and the container wall 2A by liquid-tightly covering the outer wall 2A that is the sheet surface with the rubber member 5 that is an elastic member, the broken container wall 2A The piercing hole is covered with the rubber member 5 in a liquid-tight manner, and the liquid 3 inside the container is not exposed to the outside by being transmitted between the rubber member 5 and the surface of the container outer wall 2A. The piercing hole 5A of the pierced rubber member 5 is
Since the outer peripheral edge of the communication needle 11 is pressed liquid-tight by the elastic force of the rubber member 5, the liquid 3 that has passed between the rubber member 5 and the surface of the container outer wall 2A does not leak from the piercing hole. Therefore, even if the communication needle 11 for drip is pierced through the discharge port 4, the liquid tightness with the outside is maintained as in the conventional case.
Therefore, although it has a function similar to that of the conventional outlet, its manufacture is extremely simple. For example, first, a container is filled with an infusion solution, and the periphery of the sheet is fixed by heat-sealing. In this case, since the heat sealing is not performed by sandwiching the tubular mouth member as in the conventional case, the sealing is surely performed, and the pinhole or the like does not occur. Further, the outlet formed of the elastic member and the stopper can be attached even after the container has been subjected to high-pressure steam sterilization, so that the container can be sterilized other than the high-pressure steam sterilization. Therefore, even if the elastic member and the stopper are selected to be slightly heat-sensitive, no problem will occur. Furthermore, since the elastic member is not in contact with the liquid during storage, it is not necessary to consider eluates such as rubber, which is an elastic member, such as a mobilization agent and a accelerating accelerator as in the conventional case. Therefore, the vulcanizing agent can be used in various ways, and the elastic restoring force can be made sufficient, resulting in excellent resealability after piercing.

In the medical container according to the present invention, an aseptic maintenance sealant covering the surface of the elastic member on which the puncture hole is formed is detachably attached to the elastic member of the discharge port. Therefore, the piercing part of the communication needle is maintained aseptic until use. In the medical container according to the present invention, the stopper is attached to the outer wall via an adhesive, and the adhesive covers all or part of the one surface of the elastic member. As a feature, the discharge port is sterilized by gas, the container is sterilized by high pressure steam, and the discharge port is attached to the container through the adhesive material. Can be easily sterilized. Therefore, it is extremely easy to attach the discharge port to the container.

In the medical container according to the present invention, a tubular portion is integrally or separately attached to the stopper of the discharge port, and the tubular portion is engaged with a peripheral seal portion of the container. By this, even when the communication needle is pierced, a sufficient space can be obtained in the container, and further, the finger hook portion is formed on the tubular portion. The property is improved. In the medical container according to the present invention, the inside of the tubular portion is formed as a sterile container that is sterilized and maintained aseptic, and the communication needle is housed in the tubular portion, whereby a sterile system is provided. Further, the communicating needle is characterized in that the needle portion and the tube portion are formed as separate bodies, and the needle portion is separated after the needle is inserted. There is no risk of sticking to other container walls. In addition, the pipe section,
Since the elastic member for piercing is provided at the opening end opposite to the opening end to which the puncturing part is attached, the communication needle for drip can be easily communicated. Furthermore, in the method for producing a medical container, the connecting portion between the outlet and the container is characterized by being sterilized by electron beam irradiation for production, so that it can be easily placed on the production line to ensure sterilization and the like. can do.

[0010]

The preferred embodiments of the medical container according to the present invention will be described below in detail with reference to the accompanying drawings. 1 is a front view of a first embodiment of a medical container according to the present invention, FIG.
(D) is a sectional view of the outlet in the first embodiment, FIG. 3 is a sectional view of the outlet of the medical container in the first embodiment, and FIG. 4 is an outlet when the medical container in the first embodiment is used. FIG.

As shown in FIGS. 1 to 4, the medical container 1 of this embodiment has a plastic container wall 2A through which a communicating needle 11 for discharging an infusion solution 3 can be pierced.
A rubber member 5 (elastic member) having an area capable of being pierced and capable of maintaining the piercing hole 5A liquid-tight by pressing the outer peripheral wall of the pierced communication needle 11 through elastic force; Member 5 to container wall 2
It has a discharge port 4 which is fixed to A and is made liquid-tight between the container wall 2A and the elastic member 5 and is attached to the container wall 2A.

The medical container 1 according to this embodiment will be described in more detail. The container 1 is made of a non-constant volume resin container. Specifically, the container 1 is made of inflation-molded linear low-density polyethylene. That is, the tubular sheet is cut into a predetermined size, and the peripheral edges of the cut sheets are heat-sealed to each other to form the container 1. The thickness of the sheet, that is, the thickness of the container wall 2 is formed to 200 μm, and the container wall 2 has flexibility and can be easily pierced by the piercing part such as the communicating needle 11 shown in FIG. Further, the container 1 is aseptically filled with a predetermined amount of the infusion solution 3 at the time of heat-sealing.

The discharge port 4 is attached in the vicinity of the peripheral seal portion of the container 1 and is composed of a rubber member 5 and a stopper 6. As shown in FIGS. 2 to 4, the rubber member 5 is made of synthetic rubber and is formed into a flat button-shaped molded product. The rubber member 5 allows the communicating needle 11 to be pierced through the flat surface thereof, and after the piercing, the outer peripheral edge of the communicating needle 11 is pressed by its elastic force, and the piercing hole 5A is formed.
Is kept liquid tight. The stopper 6 is made of a polyethylene resin molding, and is a thin flange portion 6 attached to the container wall 2.
A, a housing portion 6B of the rubber member 5, and a tubular portion 6C are formed.

The rubber member 5 and the stopper member 6 are thoroughly washed, and the rubber member 5 is temporarily deformed and forcibly accommodated in the accommodating portion 6B of the stopper member 6. An adhesive is applied to the sticking surface of the thin flange portion 6A of the stopper 6, and the stopper 6 is attached to the container wall 2 via the thin flange 6A. Therefore,
The outer wall 2A covered with one surface of the rubber member 5 having the piercing hole 5A maintains liquid tightness to the outside even if the piercing hole is formed in the outer wall 2A by fixing the surface of the flange portion 6A with an adhesive. It
As the adhesive, a polyethylene-vinyl acetate resin is used, which does not affect the infusion. As an adhesion method, for example, as shown in FIG. 3, the container wall 2A and the flange portion 6A flattened by the liquid stopping rolls 9 and 1 are
It is preheated at about 10 ° C., a polyethylene-vinyl acetate-based hot melt adhesive that can be melted at 110 ° C. is applied thereto, and both are fixed in a liquid-tight manner via a holding jig. A sterility maintaining seal 7 is attached to the open end of the tubular portion 6C of the stopper 6, and the sterility maintaining seal 7 is made of a vapor permeable film. Therefore, the piercing surface of the rubber member 5 through which the communication needle 11 is pierced can be covered to maintain sterility.
Further, a gripping member 8 is attached to the peripheral edge seal portion of the container 1, and a cylindrical portion 6C is attached to the gripping member 8 as shown in FIGS. 3 and 4.
Is locked. The medical container 1 is subjected to high-pressure steam sterilization, and by such high-pressure steam sterilization, the infusion solution 3 and the tubular portion 6C of the discharge port 4 are
The inside is also sterilized. High-pressure steam sterilization is performed based on the high-pressure steam sterilization method of the Japanese Pharmacopoeia, a general autoclave is used for high-pressure steam sterilization, and the inside of the autoclave is, for example, 100 to 130 ° C. after being replaced with an inert gas. Do at temperature.

In the medical container 1 of the embodiment having the above-described structure, in the manufacture thereof, the container 1 can be filled with the infusion solution 3 and sealed in a liquid-tight manner before the discharge port 4 is attached. Further, in this case, since it is not necessary to sandwich and seal a tubular discharge port member as in the conventional case, it is possible to extremely simply and aseptically fill and seal. Further, the discharge port 4 can be easily attached to the container 1 after assembling each member. Therefore, after the cleaning process of the discharge port 4, it is kept as clean as possible without human intervention. When the medical melting container 1 is stored, since the rubber member 5 or the like, which is an elastic member, is not in contact with the infusion solution 3, it is not necessary to consider the substance eluted from the rubber member 5 or the like. Therefore, it is possible to select an elastic member having an extremely high elastic restoring force function, and it is possible to enhance the maintenance of liquid tightness.

When the medical container 1 is used, as shown in FIGS. 3 and 4, first, the tubular portion 6C of the stopper for the discharge port 4 is formed.
Is gripped by the gripping member 8 of the peripheral seal portion. As a result, the container 1 is distorted and a void is generated in the container 1, and the tip of the communication needle 11 can be accommodated and held in the void 1A. Next, the sterility maintaining seal 7 is peeled off from the tubular portion 6C, and the drip communicating needle 11 is pierced through the rubber member 6. As a result, the infusion solution 3 in the container 1 flows into the patient via the communication needle 11. In this case, since the communicating needle 11 can pierce the rubber member 5 and the outer wall 2A of the container 1 is a flexible sheet through which the communicating needle 11 pierces, the communicating needle 11 can be attached to the rubber member 5 and the outer wall 2A. It can be easily penetrated. Since the rubber member 5 is kept liquid-tight on the outer wall 2A surface, the infusion solution 3 travels between the rubber member 5 and the outer wall 2 of the container 1 from the pierced hole of the container wall 2A that has been ruptured. I never go out. The piercing hole 5A of the pierced rubber member 5 is
The elastic force presses the outer peripheral edge of the communication needle 11 in a liquid-tight manner. Therefore, the infusion solution 3 that has flowed out between the rubber member 5 and the outer wall 2 of the container 1 does not flow out from the gap of the piercing hole 5A. Therefore, the liquid tightness with the outside is maintained as in the conventional case.

In the above embodiment, the tubular portion 6C is formed on the stopper 6 of the discharge port 4 and the tubular portion 6C is fixed to the grip member 8 to improve the operability. However, in the present invention, the stopper 6 is not always required. It is not necessary to provide the tubular portion 6C. If the tubular portion 6C does not exist, the sterility maintaining seal 7 may be directly attached to cover the outer surface of the rubber member 5. Although the linear low-density polyethylene sheet is used as the material of the container 1 in the above-mentioned embodiment, the present invention is not limited to this, and the above-mentioned conventional resin known per se may be used. However, since it is used as a medical container, it is desirable to use an olefin resin that does not adversely affect the infusion solution 3. Further, in order to improve the adhesiveness of the stopper of the discharge port 4 to the flange portion 6A, the sheet may be laminated with different resins in multiple layers to provide functionality. Although the inflation molded product is used in the above-mentioned examples, the present invention is not limited to this, and other known molded sheets or films can be used. In the above embodiment, synthetic rubber was used for the rubber member 5 as an elastic member, but the present invention is not limited to this, and other materials may be used as long as they have an elastic restoring function of making the piercing hole of the communicating needle liquid-tight. Elastic members can be used. For example, a thermoplastic elastomer or natural rubber can be used. The above infusion solution 3 includes
In addition to the usual infusion preparation, it may be a solution containing a high-calorie infusion or a drug such as an antibiotic. In the above embodiment, the discharge port 4 was attached before high-pressure steam sterilization, but the discharge port 4 may be attached to the container wall 2 aseptically after the assembly by gas sterilization treatment alone. In this case, each member of the discharge port 4 does not need to have heat resistance that can withstand high-pressure steam sterilization.

FIGS. 5 (A) and 5 (B) are sectional views showing the essential parts of a second embodiment of the medical container according to the present invention, and FIG. 6 is a view showing the medical container of the second embodiment when in use. It is sectional drawing which shows a principal part. The medical container 21 shown in FIGS. 5 and 6 uses the same material as that of the first embodiment. Therefore, the same reference numerals are given to the container walls, and detailed description thereof will be omitted.

As shown in FIGS. 5 and 6, the medical container 21
In addition to the rubber member 23 and the stopper member 24, the discharge port 22 includes an adhesive member 25, a cylindrical member 26, a communication needle 27, and a sterility maintaining seal 28. The stopper material 24 is liquid-tightly attached to the outer wall 2A via the adhesive material 25, and the adhesive material 25 is the rubber member 23.
One side is covered liquid-tightly. The stopper 24 is attached to the tubular member 26 as a separate body, and the tubular member 26 is locked to the peripheral edge seal portion 21B of the container 1 via the locking portion 29. A finger hook 30 is formed on the tubular member 26. Further, the inside of the cylindrical member 23 is sterilized and the aseptic container 3 is maintained aseptically.
The communication needle 27 is housed in the sterile container 31. Further, the communication needle 27 includes a needle member 32 and a tube member 33.

The medical container 21 according to this embodiment will be further described. As shown in FIG. 5, the rubber member 23 has a mounting hole formed on the upper surface thereof, and the mounting hole is formed by the needle member 32 of the communicating needle 27 and the tube member 33. The tip is inserted. The rubber member 23 is placed in a liquid-tight manner between the stopper 24 and the adhesive 25, and the stopper 24 is fixed to the adhesive 25 by ultrasonic welding. Therefore, one surface of the rubber member 23 is liquid-tightly covered with the adhesive material 25. The connecting portion 26A of the tubular member 26 is liquid-tightly fitted to the small-diameter connecting portion 24A of the stopper 24, and the entire communicating needle 27 is housed in the tubular member 26. Finger hooks 30, 30 are formed in the upper opening 26B of the tubular member 26, and a sterility maintaining seal 28 is releasably attached to the opening. The sterility maintaining seal 28 is gas permeable and is formed of a known member that is permeable to a sterilizing gas such as ethylene oxide gas. Therefore, when the exhaust port 22 after assembly is sterilized by ethylene oxide gas, the inside of the tubular member 26 is formed as a sterile container 31 in which sterility is maintained.

The communication needle 27 is housed in the sterile container 31,
The puncture member 32 and the tube member 33 are formed from a resin molded product that is a separate body. The tip of the puncture member 32 is formed into an acute angle so that the rubber member 23 and the container wall 2 can be pierced, and the base end of the puncture member 32 can be loosely inserted into the hollow passage of the tube member 33. It is formed. Therefore, the needle member 32 is easily removed from the tube member 33. The diameter of the distal end portion of the tube member 33 is formed to be smaller than the diameter of the maximum expanded diameter portion of the needle member 32, and the distal end surface of the tube member 33 is settled within the expanded diameter portion, and when the communicating needle 27 is inserted, the arrow A in FIG. Even if the rubber member 24 moves in the direction of, the rubber member 24 does not directly receive resistance. A guide panel 34 is attached to the middle portion of the pipe member 33,
The peripheral edge of the guide panel 34 is in sliding contact with the inner wall surface of the tubular member 26 and guides the communication needle 27 so as to move in the direction of arrow A. Further, the base end portion of the cylindrical member 33 is formed in a divergent shape so that the connection adapter 41 for drip can be connected.

After being assembled as described above, the discharge port 22 is sterilized by ethylene oxide gas, and as shown in FIG. 5 (A), the discharge port 22 is arranged on the container wall 2A flattened by the liquid stopper rolls 9, 9. The infusion solution 3 in the container 21 has already been subjected to high-pressure steam sterilization. The surface of the adhesive material 25 and the surface of the container wall 2A are heat-welded and liquid-tightly fixed to each other. In this case, the heat welding temperature is lower than the forming temperature of the peripheral edge seal portion 21B when the container is formed so that the sheets of the container wall 2A are not completely heat welded.

As shown in FIG. 5B, after the discharge port 22 is attached to the container wall 2A, the adhesive portion is sterilized by electron beam irradiation sterilization through the container wall 2A. When such an electron beam is irradiated, the electron beam directly irradiates the adhesive portion through the inside when the container wall 2A is thin. In this case, sufficient sterilization can be performed if the irradiation amount of the adhesive portion is 1.6 Mrad or more.
For example, microbial radiation bacteria (indicator bacteria: B. pumilus (spor
es) E-601) with a D value of about 0.2 Mrad.
The inside of the container is kept clean and filled with the drug, usually 10 ⁰
Bacteria below the order are attached. In addition, if the adhesion is up to the order of 10 ² in consideration of safety, it is necessary to irradiate at 0.2 Mrad × 8 or more because the sterilization assurance level is a survival rate of 10 ⁻⁶ %. Become.

The electron beam permeability is determined by the acceleration voltage of the electrons, and is 1 at the maximum in the high energy type electron beam irradiation apparatus.
It is 3000 g / m ² , which is 13000 μm in thickness of water (specific gravity 1 g / m ³ ). However, in the high energy type electron beam irradiation apparatus, generation of X-rays and the like is large, the shielding facility therefor becomes excessive, and the container may be affected. Therefore, it is difficult to assemble a production line with a high-energy electron beam irradiation apparatus. On the other hand, in the medium and low energy type of 1 MeV or less, the electron beam permeability of up to about 1500 g / m ² is expected. Therefore, in electron beam irradiation sterilization of a drug, if both sides are irradiated and the wall thickness of the container wall 2A is (1600/2) μm or less,
It is possible to use compact low-medium energy type equipment, and it is possible to sterilize a large amount of chemicals reliably on the production line. Therefore, in this embodiment, since the wall thickness of the container wall 2A is 200 μm, the low energy type electron beam irradiation device directly sterilizes the bonded portion with the electron beam.

When using the medical container 21 having the above-described structure, the sterility maintaining seal 28 is peeled from the tubular member 26, and the drip connection adapter 41 is connected to the proximal end opening of the communication needle 27. Then, the connecting needle 27 is moved in the tubular member 26 together with the connecting adapter 41, and the connecting needle 27
The needle member 32 of the rubber member 23 and the container wall 2A.
Is pierced. The tip of the tube member 33 is attached to the needle member 3
It is located in the container 21 guided by 2. Further, since the puncture member 32 can be removed, it can be easily separated from the tube member 33 by inverting it. As a result, as shown in FIG.
The inside is connected to the connection adapter 41 to enable infusion.

In this case, the finger hooking portion 30 formed on the tubular member 26 facilitates the piercing operation of the communication needle 27, and the sterility maintaining seal 28 liquid-tightly closes the opening of the tubular member 26, so that the aseptic container is provided. 31 is formed and the communication needle 27 is accommodated in the accommodating portion 31, so that aseptic operation can be further performed. In addition, the communication needle 27 is used even after the sterility maintaining seal 28 is peeled off.
The tips of the needle member 32 and the tube member 33 of the rubber member 23
It is in the mounting hole of and there is no contact with the outside air. Therefore, a series of operations can be performed aseptically. In addition, the communication needle 27
After the piercing, the piercing member 32 is removed, so there is no risk of piercing the other container wall 2 and breaking the container itself. Furthermore,
When assembling the container 21, only the discharge port 22 can be sterilized separately from the container body, and therefore high pressure steam sterilization is not always required, and the connecting portion is securely sterilized by electron beam irradiation. Easy sterilization. In the above-described embodiment, the entire surface of the rubber member 23 is covered with the adhesive material 25, but a hole or the like may be provided in the portion through which the communication needle 27 penetrates to cover a part of the surface of the rubber member 23. Although the connection between the container and the outlet is sterilized by electron beam irradiation in the above-mentioned embodiment, such sterilization may be applied to the container of the first embodiment.

FIG. 7 is a sectional view of the essential parts of a third embodiment of the medical container according to the present invention. Medical container 51 of the third embodiment
Has almost the same configuration as the medical container 21 of the second embodiment, and about the same configuration and members are given the same reference numerals as those of the medical container 21 of the second embodiment, and detailed description thereof will be given. Omit it. As shown in FIG. 7, the medical container 51 of this embodiment is different from that of the second embodiment in that the communication means provided in the tubular member 26 is different.

In the cylindrical member 26 of the discharge port 52, in addition to the puncture member 32, the puncture member 32 is provided at the tip portion having a small diameter.
A connecting cylinder 53, to which a rubber plug 54 is attached, is movably provided at the large diameter portion of the base end. The rubber stopper 54 is attached by sealing the base end opening of the connecting cylinder 53 via a stopper 55, and a sterile maintenance seal 56 is detachably provided on the stopper 55 to cover the outer surface of the rubber stopper 54. ing. In addition, the tubular member 2
A flexible tubular seal member 56 is provided between the connection member 6 and the connecting tube 53, and the seal member keeps the inside of the tubular member 26 liquid-tight. Then, like the discharge port 22 of the second embodiment, such a discharge port 52 is sterilized after assembly and attached to the container wall 2.

In use of the medical container 51 having such a structure, first, the connecting cylinder 53 is moved so that the needle member 32 pierces the rubber member 23, the adhesive material 25 and the container wall 2A. To do. As a result, the inside of the connecting cylinder 53 and the inside of the container 51 are made to communicate with each other, then the sterility maintaining seal 57 is peeled off, and the drip connecting needle or the like is pierced into the rubber stopper 54 to start drip. Therefore, after the discharge port 52 is assembled, it can be attached to the container 51, and since the infusion solution in the container 51 and the rubber stopper or the like that is an elastic member are not brought into contact with each other to be stored, the eluate from the rubber stopper is not stored. The fear of is wiped out.

[0030]

As described above, the medical container of the present invention has the plastic container wall through which the communicating needle for discharging the liquid can be pierced, and the piercing area of the communicating needle can be reduced. An elastic member having an outer peripheral wall of the pierced communication needle through an elastic force to maintain the piercing hole liquid-tight, and the elastic member being fixedly placed on the container wall, and the container wall Since it has a discharge port composed of a stopper that is liquid-tight between the elastic member and the elastic member and is attached to the container wall, it is easy to attach to the container,
Equipped with a discharge port that can be easily installed even after high-pressure steam sterilization of the container, the manufacturing safety and economy are extremely high.

[Brief description of the drawings]

FIG. 1 is a front view of a medical container according to a first embodiment.

2A to 2D are cross-sectional views of a discharge port of the medical container according to the first embodiment.

FIG. 3 is a cross-sectional view of the main parts of the medical container according to the first embodiment.

FIG. 4 is a cross-sectional view of essential parts when the medical container according to the first embodiment is used.

5 (A) and 5 (B) are cross-sectional views of a main part of a discharge port of a medical container according to a second embodiment.

FIG. 6 is a cross-sectional view of essential parts of a medical container according to a second embodiment.

FIG. 7 is a cross-sectional view of essential parts of a medical container according to a third embodiment.

[Explanation of symbols]

 1, 21, 51 Medical container 2 Container wall 2A Outer wall 4, 22, 52 Discharge port 5 Rubber member 6 Stopper 7 Aseptic maintenance seal 8 Grasping member 9 Liquid stop roller 11 Communication needle

Claims (9)

[Claims] 1. A plastic container wall capable of piercing a communicating needle for discharging a liquid, having a pierceable area of the communicating needle, and providing a peripheral wall of the pierced communicating needle. An elastic member capable of maintaining a piercing hole in a liquid-tight state by pressing through an elastic force, the elastic member being fixedly placed on the container wall, and a space between the container wall and the elastic member being liquid-tight. A medical container having a discharge port formed of a stopper attached to a container wall. 2. The medical device according to claim 1, wherein an aseptic maintenance sealing material that covers a surface of the elastic member on which a puncture hole is formed is detachably attached to the elastic member of the discharge port. container. 3. The adhesive material is attached to the outer wall via an adhesive material, and the adhesive material covers all or part of the one surface of the elastic member. Item 1. A medical container according to item 1 or 2. 4. The medical device according to claim 1, wherein a tubular portion is integrally or separately attached to the stopper of the discharge port, and the tubular portion is locked to the container. container. 5. The medical container according to claim 4, wherein a finger hook portion is formed on the cylindrical portion. 6. The medical container according to claim 4, wherein the inside of the cylindrical portion is formed as a sterile container that is sterilized and maintained aseptically, and the communication needle is accommodated in the cylindrical portion. . 7. The medical container according to claim 6, wherein in the communication needle, the puncture portion and the tube portion are formed as separate bodies, and the puncture portion is separated after the puncture. 8. The medical container according to claim 7, wherein the tube portion is provided with an elastic member for piercing at an opening end opposite to an opening end to which the puncture portion is attached. 9. The method for manufacturing a medical container according to any one of claims 1 and 2, wherein the connection between the outlet and the container is sterilized by electron beam irradiation. Method.