JPH0546455Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is applicable to intravenous infusions such as carbohydrate infusions, electrolyte infusions, plasma expanders, osmotic diuretics, amino acid infusions, fat emulsions, and high-calorie infusions. This invention relates to an infusion container that stores infusion solutions for injection.

[Prior Art] Conventionally, as this type of infusion container, one having a structure in which a cap is attached to the opening of the container body to cover it is already known and used.

[Problems to be solved by the invention] In the conventional infusion container described above, as shown in FIG. 3, a cap b that covers the entire opening a is screwed onto the outer peripheral surface of the opening a. ,Also,
In order to prevent moisture from entering due to external pressure during steam sterilization, an annular tongue c is formed at the mouth part a, and an annular tongue c is attached to the cap b.
The structure is such that an annular protrusion d is formed in contact with the cylindrical member d to form a seal. e is a pull ring that unseals the mouth part a, and f is a score that becomes a resection part when removing the pull ring e.

However, with the above-described sealing means in which the annular protrusion of the cap is simply brought into contact with the annular tongue c of the mouth part a, there is a risk of leakage from the threaded part of the mouth part a and the cap b during steam sterilization with high external pressure. The moisture seeped through the sealed portion, and as a result, the opening surface of the opening a could not be maintained hygienically.

In view of the problems with conventional infusion containers of this type, the present invention reduces the diameter of the upper part of the cap to form a small diameter part that comes into contact with the entire circumference of the top wall of the mouth, so that the rising part of the mouth By bringing the small diameter part of the cap into contact with a certain extension of the peripheral wall, even if the cap is screwed in strongly and the close pressure between the mouth and the cap is increased, the mouth and the cap will not deform and the mouth will not open. The purpose of this invention is to provide an infusion container that is extremely hygienic and maintains a completely sealed state.

[Means for solving the problem] The present invention is configured as follows as a technical means for achieving the object.

In other words, the structure is an infusion container in which a cap is attached to the mouth of the container body, which has a pull ring protruding from the top wall, and a cap that covers it is attached to the mouth of the container body, and the diameter of the upper part of the cap is reduced to extend around the top wall of the mouth. The infusion container is characterized in that a small diameter part is formed in contact with the entire circumference of the cap to form a housing part for the pull ring, and the large diameter part at the bottom of the cap is screwed onto the outer peripheral surface of the mouth part. It is something.

[Function] As described above, in the infusion container according to the present invention, the diameter of the upper part of the cap is reduced to form a small diameter part that contacts the entire circumference of the top wall of the mouth, and the large diameter part of the lower part of the cap is reduced in diameter. Since the cap is configured to be screwed onto the outer peripheral surface of the opening, the entire circumference of the top wall of the opening that the small diameter part of the cap comes into contact with is on an extension of the rising part of the opening, and the small diameter of the cap The rigidity of the part in the pressing direction is high and the strength is high. For this reason,
By tightly screwing the cap, the small diameter portion and the entire circumference of the top wall of the mouth portion can be brought into close contact with each other to maintain a highly sealed state inside the cap.

Therefore, even if the infusion container is subjected to high-pressure steam sterilization, there is no risk of moisture infiltrating the opening portion covered by the cap, and a high level of hygiene is maintained.

[Example] An embodiment of the present invention will be described with reference to the drawings.

1 and 2, reference numeral 1 denotes an infusion container body, which has a protruding mouth 2 formed at the top thereof and a cap 3 which entirely covers the mouth 2. The infusion container is manufactured by blow molding a thermoplastic plastic such as polyethylene or polypropylene.

A male thread 4 is formed on the outer peripheral surface of the mouth 2, and a pull ring 6 is formed in the center of the top wall 5 of the mouth 2.
This is the unsealed part. 7 is the score.
The cap 3 has a small diameter part 8 with a reduced diameter at its upper part, and a female thread 10 is formed on the inner peripheral surface of the lower large diameter part 9 to be screwed into the male thread 4 on the outer peripheral surface of the mouth part 2. The large diameter portion 9 at the bottom of the cap 3 is screwed onto the outer peripheral surface of the mouth portion 2. By screwing the cap 3 as described above, the entire lower end of the upper small diameter portion 8 of the cap 3 comes into contact with the entire periphery of the top wall 5 of the mouth portion 2. L is an imaginary extension line of the mouth portion 2.

In the infusion container of the embodiment configured as described above, when the cap 3 is screwed into the mouth part 2, the small diameter part 8 of the cap 3 is formed around the entire periphery of the top wall 5 of the mouth part 2.
are in contact and the inside is sealed. The entire circumference of the top wall 5 of the mouth part 2 is on the extension line L of the rising part of the mouth part 2, and a male thread 4 is formed on the outer peripheral surface, which serves as a reinforcing rib. , that part has high rigidity in the downward pushing direction and high strength. Therefore, cap 3
Even if the cap is strongly screwed in, the mouth 2 and the cap 3 will not be deformed, and the entire circumference of the top wall 5 of the mouth 2 and the small diameter portion 8 of the cap 3 will be tightly brought into close contact, making the inside highly sealed. Even if the infusion container is subjected to high-pressure steam sterilization, moisture will not enter into the unsealed portion of the mouth portion 2, maintaining high hygiene.

Moreover, unlike the conventional one, the top wall 5 of the mouth part 2 does not have an annular tongue and is a flat surface, so that the pull ring 6 can be pulled without any hindrance, and the infusion container can be opened smoothly.

[Effects of the invention] The present invention is an infusion container in which a cap is attached to the opening of the container main body, which is equipped with a pull ring protruding from the top wall. A small diameter part that contacts the entire circumference of the ceiling wall is formed to form a storage part for the pull ring, and a large diameter part at the bottom of the cap is screwed into the outer circumferential surface of the opening. Even if the cap is tightly screwed in to increase the sealing pressure between the mouth and the cap, the mouth and the cap do not deform, and the opening of the mouth remains completely sealed, making it extremely hygienic. An infusion container can be obtained.

[Brief explanation of the drawing]

Figures 1 and 2 show an embodiment of the present invention, with Figure 1 being a partially cutaway front view of the main parts of the infusion container, and Figure 2 being a front view of the same with its upper opening opened. It is. FIG. 3 is a partially cutaway front view of a main part showing a conventional example. DESCRIPTION OF SYMBOLS 1... Infusion container main body, 2... Mouth part, 3... Cap, 4... Male thread, 5... Top wall, 6... Pull ring, 7... Stripping groove, 8... Small diameter part, 9...
...Large diameter section, 10...Female thread.

Claims (1)

[Scope of utility model registration request] An infusion container consisting of a cap that covers the opening of a container body that has a pull ring protruding from the top wall, and the upper part of the cap is reduced in diameter so that it comes into contact with the entire circumference of the periphery of the top wall of the opening. An infusion container characterized in that a small diameter part is formed to form a storage part for a pull ring, and a large diameter part at the bottom of the cap is screwed onto the outer peripheral surface of a mouth part.