JPS5822069A - Stop cock for liquid dosing container - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stopper for an infusion container for containing an infusion such as blood transfusion, rinsing liquid, or grape infusion.

Conventionally, glass bottles with closed closures were often used for infusion containers.9
The sealing process involves filling a cleaned glass bottle with the liquid, filling a glass bottle with five caps that have been sterilized in advance, and then
This rubber stopper is clinch-sealed with an aluminum cap,
After that, the glass bottle is sterilized, and finally a glass-like cover cap is drilled and a cap seal made of shrink PVC is generally used. However, according to this conventional technology, since the rubber stopper comes into contact with the liquid content, there is a drawback that bleed material of "A4 size" gets mixed into the liquid content, or the sealing work is troublesome due to the large number of component parts. becomes.

In addition, there are some cases in which Gelastek-Toru is used instead of a glass bottle, but in this case as well, the sealing process is such that the washed plastic fills the bottle with the contents and then the plastic stopper t is used. Heat seal and sterilize, then fit the comb stopper.

Furthermore, a plastic cover cap is attached, and the cap is sealed with nine shrinkable PVC.

However, even with the configuration of this prior art, the rubber stopper, which is the site where the needle is inserted to directly inject the drug into the blood vessel,
Despite the fact that 41 rubber stoppers require cleanliness, a major drawback is that they do not go through a sterilization process, so the surface of the rubber stopper must be cleaned with alcohol or the like before use. In addition, as in the case above, there are many components, and the sealing process is complicated before and after the sterilization process.

Furthermore, in the former case, when high-temperature heat sterilization is carried out, the difference in pressure between the inside and outside of the container causes contamination, and the rings are simply fitted together, so during high-temperature and high-pressure sterilization, the contact Depending on the shape of the plastic sample, the external liquid may flow into the container through the surface, or, depending on the shape of the plastic sample, the external liquid may corrode the plastic sample and the tozome stopper. Furthermore, when there are a large number of each component, the sealing process becomes cumbersome, and molding each component separately is not suitable for mass production.

Therefore, the present invention is intended to solve these drawbacks of the prior art, and its purpose is to: The K stickic circular body completely encloses the five plugs, and the rubber plug is protruded above the rubber plug to form a score.It is extremely hygienic and has excellent sealing performance, and the needle insertion part can be easily and securely inserted. To provide an orange infusion container that can be stacked on top of each other.

The present invention will be explained below with reference to the illustrated embodiments.
Is there a nine-glass seal that seals the opening in the figure? The plug body is shown in Figure 1, and the plug body is shown in Figures 2 to 4. A is a plastic bottle, and B is a plug body, both of which are made of heat-resistant synthetic resin that can withstand high-temperature heat sterilization. A single plug body BFi generally consists of three parts: an inner plug 1, an outer plug 2, and a rubber plug 3 sealed between the inner plug 1 and the outer plug 2. To explain the structure of the stopper B in more detail, the inner stopper 1 has an intermediate wall 5 at the center of the inner circumference of the cylindrical side wall 4, and an elliptical thin score 6 is formed on the lower surface of the intermediate wall 5. ing. On the upper surface of the intermediate wall 5, a rod-shaped protrusion 8 is erected at a suitable position inside the periphery of the thin score 6 via a pulley 7, and on the upper part of the rod-shaped protrusion 8 is an annular pull-liner 9 for a welfare finger. is side wall 4
They are integrally connected so that they do not protrude upwards. Therefore, by hooking a finger on the pull cylinder 9 and pulling it up, the intermediate wall 5 can be easily opened along the score 6. The above-mentioned inner plug 1 is made of polypropylene as a main component, ethylene,
It is injection molded using a composite synthetic resin composition containing propylene alcohol remer and calcium carbonate misaki inorganic materials.
This is a stream with high tensile strength! When formed from pyrene alone, it can withstand high-temperature heat sterilization, but its tensile strength makes it difficult to open the intermediate wall 5 along the score 6, so the tensile strength is reduced. At least by adding inorganic materials such as ethylene, fa-pyrene copolymer and calcium carbonate that can improve the ease of opening,
It is round and satisfies both the rust requirements of heat resistance and ease of opening.

The outer periphery of the inner 1 & 1 and the outer periphery of the outer 4 & 2 are completely welded, and the +/- ends of the cylindrical Jill/G/Cf plastic is heated to the open flange 11 of the tormu and the outward facing 7 cylinder part 12 is integrated. At the same time, the center of the bottom part 13 connected to the side wall 10 is formed into an elliptical shape similar to the peripheral edge shape of the score 6 as a raised bottom thin wall part 14. The outer parts 4 & 2 do not need to be formed of a synthetic resin composition which is mainly made of polypropylene and added with inorganic materials such as ethylene and chlorine copolymerized calcium carbonate, which constitute the inner plug 1, and are sterilized by heating at high temperature and pressure. It is sufficient to perform injection molding using a single synthetic resin composition such as polypropylene, which has high mechanical strength and heat resistance that can withstand the above.

The rubber plug 3 is completely enclosed in a space 15 formed by the lower side wall 4 of the inner plug 1, the intermediate wall 5, and the thin wall portion 14 of the outer plug 2, and is airtightly separated from the outside. 1 shows a two-stage continuous injection molding machine for producing an infusion container according to the present invention, C is a primary mold for molding the inner stopper 1, and D is a secondary mold for molding the outer plug 1 and 2. It is. 16 is a fixed mold of the primary mold C, 17 is a movable mold, and 18 is a secondary mold [fixed mold of D,
17' is a moving mold. The fixed molds 16 and 18 are both fixed to the fixed platen 20, but the movable molds 17 and 17
-6° 22 is a movable plate which is attached to the rotary plate 21 and is rotatable; -6°22 is a movable plate which rotatably holds the rotary plate 21 and slides each movable ring 1117, 17' in the axial direction.

23 is a mold clamping ram connected to the movable platen 22, 24 is a screw extrusion member for extruding the molten material from a nozzle into the primary metal IC, and 25 is a secondary metal J! This is a screw extrusion member for ID.

6 to 11 show the manufacturing process of an orange infusion container molded by the injection molding machine configured as described above. In FIG. 6, a screw extrusion section is shown.

When the inner plug 1 is molded within the primary metal WC by injecting the molten metal material from the material 24, the movable mold 17 of the primary mold C is moved around the axis by the movable platen 22, as shown in FIG. Forced to move in direction. During this mold release, the inner plug 1 is held attached to the movable mold 17, so the movable mold retains the inner plug 1! 17 is rotated by a predetermined angle by a rotating plate 21. Next, as shown in Figure #18,
Into the space 15 formed by the inner periphery of the side wall 4 and the intermediate wall 5 of the inner side 1it1, a pre-formed 9-needle needle 1 3 is press-fitted in a close contact state. In this case, as shown in FIG. 9, a three-stage continuous injection molding machine is used to clamp the movable die 1117 and the fixed die 26 for molding the rubber orange, and then extrude the molten rubber. IiE part space 15
If the rubber stopper 3 is continuously injection molded inside, products can be mass-produced continuously.

When the insertion of rubber @3 is completed, as shown in Fig. 10,
- The movable mold 17 of the next mold C is rotated further while holding the inner stopper 1 and A413, and when it reaches the secondary mold position, the movable mold 17 of the secondary mold 17' Naru,
After the mold is clamped with the fixed mold 18 by the mold clamping ram 23, the outer parts 1 & 2 are injection molded by injecting a synthetic resin material with high heat resistance such as molten/lipropylene into the mold from the screw extrusion member 25. be done. In this way, the side walls 4 and 1 of the inner plug 1 and the outer plug 20 are completely welded together to improve airtightness. The section 14 is completely airtight with the outside.

As described above, the plug body B, which is formed by integrally molding the three members of the inner plug 1, the outer cypress 2, and the rubbers i and 3 sealed therein, is decoysed as a single component in advance, and the inner layer rubber column 3 is removed. Also sterilize it. Then, after the washed Gerastec fills Toru A with its contents.

&) Insert the plug B into the opening part 1 of the plug B.
2 and the plastic are heat-sealed between the opening flange 11 of the bottle, and as shown in Figure 1, the stopper B is completely sealed to the plastic bottle to complete the sealing, and the next step is sterilization. work is completed.

As described above, the stopper of the infusion container according to the present invention has a rubber stopper completely enclosed within the plastic stopper body and is separated from the outside, so it is necessary to sterilize the insertion part of the needle of rubber material such as alcohol swab when using it. Moreover, there is an advantage that the f17-de substances of the rubber stopper do not mix into the liquid content. Also, the inner plug has a sol ring and score on the middle wall of the upper surface of the plug.
Ethylene, zolopyrene 4 based on ligropyrene
When it is made of a composite synthetic resin made by adding inorganic materials such as limer and calcium oxide, it satisfies the heat resistance that can withstand the temperature of approximately 120℃ of infusion solution in the front, and also satisfies the score. There is also the advantage that the needle insertion part of the rubber stopper can be easily exposed to the outside by easily opening along the side, and the opening operation is simple and reliable. In addition, we completely welded the pCf plastic bottle and the stopper, and the inner and outer stoppers of the stopper, so the performance of smuggled goods was further improved, and the outside fILtIrL at the time of murder was further improved.
It also has the advantage of preventing liquid leakage during storage and storage. Sara K
By continuously molding the plug body and forming it as a single component, the plugging operation is simplified.
There are also advantages such as the ability to mass produce products.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a vertical cross-sectional view showing a delastic getter and a stopper with an opening sealed;
FIG. 2 is a central vertical sectional view showing the plug body. FIG. 3 is a plan view of the same, FIG. 4 is a bottom view of the same, FIG. 5 is a vertical sectional view showing a two-stage injection molding machine, FIG. 6 is a vertical sectional view of main parts showing a clamped primary mold, Figure 7 is a vertical sectional view of the main part showing the primary side mold that has been released, Figures 8 and 9 are vertical sectional views of the main part showing the fitting of the plug, and Figure 1110 is the secondary side that has been clamped. FIG. 11 is a longitudinal cross-sectional view of the main part showing the mold, and FIG. 11 is a longitudinal cross-sectional view of the main part showing the plug to be knocked out. Explanation of codes A...Plastic is torr B...Plug body C...-
Next side mold D...Secondary side mold 1...Inner plug
2...Outer plug 3...Rubber plug
4...Side wall 5...Intermediate li 6...
Score 7...Reply 8...Protrusion 9.
...Sol ring 10...Side wall 11...Flame part 12...Franz part 13...Bottom part
14... Thin wall part 15... Space
16...-Next side fixed metal lid 17...-Next side moving mold
17'...Made of secondary side movable metal 18...Secondary side fixed mold 20...Fixed plate 21...Rotating plate 22.
...Movable platen 23...Mold clamping ram 24...
- Secondary screw extrusion material 25...Secondary side screw extrusion member 26...Fixed Kanada Patent applicant Toyo Seikan Co., Ltd. Figure 1 Figure 3111 Figure 2 Figure 4

Claims (1)

[Claims] In the plastic ring body with the inner part and the outer stopper welded together, gob@ is sealed inside the plastic part, a score is formed on the inner surface of the upper wall of the Okugomu orange, and 4Rs with a bull ring is attached on the outer surface. An elm of an infusion container characterized by its upright position.