BEFORE-USE MIXING CONTAINER
The present invention provides a before-use mixing container in which it is possible to perform a mixing operation for two types of medicinal solutions in its container independently of an uncovering operation for a cap or the like. The before-use mixing container including a movable body 1 which has a tube section 11, a ceiled cylindrical inner tube 13 which is consecutively installed upright on an inner surface of the tube section, that partitions the tube section into two upper and lower chambers, and a first opening portion 13b drilled in a ceiling plane 13a of the inner tube, and in which a first medicinal solution A is contained in the lower chamber, an adapter 3 which has a fit-in tube section 31 which is tightly fit into the upper chamber of the movable body to be assembled so as to be rotatable with respect to the movable body, a partition wall surface 35 which is provided on an inner surface of the fit-in tube section, and is tightly attached to the ceiling plane of the inner tube of the movable body, and a second opening portion 35a which is drilled in the partition wall surface so as not to overlap the first opening portion, and a container main body 4 which has a lower mouth tube section 42 tightly fit into the upper chamber of the adapter, to be assembled so as not to be rotatable with respect to the adapter, and in which a second medicinal solution B is contained, in the before-use mixing container, when the movable body is relatively rotated with respect to the container main body, the first opening portion and the second opening portion are overlapped.
The present invention relates to a before-use mixing container in which two types of medicinal solutions are stored in a separated state in one container, and these are mixed inside the container in use, and extracted for use.
BACKGROUND ARTThere are many medicinal solutions such as eye drops, which are chemically unstable in a mixed state or a dissolved state, and in case of use of such a medicinal solution, it is necessary to perform a mixing operation immediately before use. There is a before-use mixing container as a container in which two types of medicinal solutions are stored in a separated state, and these are mixed in the container in use, and extracted for use.
As a before-use mixing container, for example, there has been known a container adopting a system that one medicinal solution and another medicinal solution are respectively contained in a first container body and a second container body in a separated state by use of isolation members in which one member having an opening portion and the other member having an opening portion are slidably fit into each other so that their opening portions do not face each other, and the both opening portions are made to face each other by a sliding operation of the isolation members, to mix the two types of medicinal solutions (refer to Patent Document 1).
PRIOR ART DOCUMENT Patent Document
- [Patent Document 1] Japanese Patent No. 3228376
However, since an uncovering operation is accompanied at the time of mixing the two types of medicinal solutions in the before-use mixing container in Patent Document 1, there is, for example, a concern that the medicinal solutions may spill out when an uncovering operation is performed in a state in which the container is turned upside down by mistake. Accordingly, it is necessary to adopt a mixing method independent of an uncovering operation in order to mix two types of medicinal solutions even when such an erroneous operation is performed.
The present invention has been achieved in consideration of the above-described circumstances. It is a primary object of the present invention to provide a before-use mixing container in which it is possible to perform a mixing operation for two types of medicinal solutions in the container independently of an uncovering operation for a cap or the like.
Means for Solving the ProblemThat is, the scope of the present invention is as follows.
[1] A before-use mixing container including
a movable body which has a bottomed cylindrical tube section, a ceiled cylindrical inner tube which is consecutively installed upright on an inner side in a circumferential direction from an inner surface of the tube section, that partitions an internal space of the tube section into two upper and lower chambers, and a first opening portion drilled in a ceiling plane of the inner tube, and in which a first medicinal solution is contained in the lower chamber,
an adapter which has a hollow cylindrical fit-in tube section which is tightly fit into the upper chamber of the movable body to be assembled so as to be rotatable with respect to the movable body, a partition wall surface which is provided on an inner surface of the fit-in tube section, and is tightly attached to the ceiling plane of the inner tube of the movable body in a state in which the partition wall is assembled to the movable body, and a second opening portion which is drilled in the partition wall surface so as not to overlap the first opening portion, and
a container main body which has a lower mouth tube section which is tightly fit into the upper chamber surrounded by an upper surface of the partition wall surface of the adapter and the inner surface of the fit-in tube section, to be assembled so as not to be rotatable with respect to the adapter, and in which a second medicinal solution is contained, and in the container,
when the movable body is relatively rotated with respect to the container main body, the first opening portion of the movable body and the second opening portion of the adapter are overlapped, and the container is capable of mixing the first medicinal solution and the second medicinal solution before use.
[2] In the before-use mixing container according to [1],
the fit-in tube section of the adapter is provided with a large diameter section and a small diameter section having circular arc shapes in plan view, and in a state in which the fit-in tube section of the adapter is assembled to the upper chamber of the movable body, the large diameter section and the small diameter section of the fit-in tube section are respectively spaced from the inner surface of the tube section of the movable body to generate gaps, and
a vertical line with a height exceeding a spaced distance between the inner surface of the tube section and the large diameter section, and with a height which does not exceed a spaced distance between the inner surface of the tube section and the small diameter section is provided on the inner surface of the tube section of the movable body, and the longitudinal vertical line faces the small diameter section.
[3] In the before-use mixing container according to [2], when the movable body is relatively rotated with respect to the container main body and the vertical line provided on the inner surface of the tube section of the movable body reaches a boundary portion between the small diameter section and the large diameter section of the fit-in tube section, the first opening portion and the second opening portion are overlapped.
Effects of the InventionAccording to the before-use mixing container of the present invention, since the container main body and the adapter are assembled so as not to be relatively rotatable, the adapter and the movable body are assembled so as to be relatively rotatable, and the two types of medicinal solutions are mixed by merely relatively rotating the movable body with respect to the container main body, it is possible to perform a mixing operation for the two types of medicinal solutions in the container independently of an uncovering operation for a cap or the like.
Hereinafter, am embodiment of the present invention will be described with reference to the drawings.
A movable body 1 is an injection-molded part made of synthetic resin. As shown in
Then, the fit-into tube section 21 of the bottom cover 2 is tightly fit into the inner surface of the lower end opening portion of the tube section 11 of the movable body 1, and the outer ledge 23 of the bottom cover 2 is fit into the locking groove line 14 of the movable body 1, thereby making the bottom cover 2 fit into to be attached to the movable body 1 (refer to
The adapter 3 is an inj ection-molded part made of synthetic resin. As shown in
On the other hand, a large number of longitudinal locking vertical lines 33 are provided so as to protrude at regular intervals along the circumferential direction starting from the upper end opening portion on the inner surface of the fit-in tube section 31, and locking protrusions 34 for locking are provided so as to protrude on the distal ends of the respective longitudinal locking vertical lines 33. Then, a partition wall surface 35 that partitions the internal space of the fit-in tube section 31 into two upper and lower chambers is provided on the lower side of the locking protrusions 34, and a short cylindrical airtight cap tube section 36 with a diameter shorter than that of the fit-in tube section 31 is provided upright on the peripheral edge of the partition wall surface 35, and a second opening portion 35a is drilled in the inner side of the airtight cap tube section 36 in the partition wall surface 35. The second opening portion 35a is disposed so as not to overlap the first opening portion 13b of the movable body 1 in a state in which the adapter 3 is assembled to the movable body 1, and is provided at a position at which the second opening portion 35a overlaps the first opening portion 13b when the movable body 1 is made to slide with respect to the adapter 3 to rotate around the center of axis. Then, as shown in
A container main body 4 is a blow molded article made of synthetic resin. As shown in
The nozzle 5 is an injection-molded part made of synthetic resin. As shown in
The cap 6 is an injection-molded part made of synthetic resin. As shown in
That is, the before-use mixing container of the present invention is configured so that the bottom cover 2, the movable body 1, the adapter 3, the container main body 4, the nozzle 5, and the cap 6 are integrally assembled, and by use of the ceiling plane 13a of the inner tube 13 of the movable body 1 and the partition wall surface 35 of the adapter 3 as partition walls, the first medicinal solution A is contained in the lower chamber of the movable body 1 and the second medicinal solution B is contained in the container main body 4. Then, regarding the possibility of rotation between the above-described respective members with each other, the movable body 1 and the adapter 3 are assembled so as to be relatively rotatable with respect to each other, and the adapter 3 and the container main body 4 are assembled so as not to be relatively rotatable with respect to each other.
In use of the before-use mixing container of the present invention, a mixing operation for the first medicinal solution A and the second medicinal solution B, and an extraction operation for the mixed liquid are required. Regarding the former operation, as shown in
In the present embodiment, as shown in
Further, in the present embodiment, protrusion lines 31c and 31d are respectively provided in a longitudinal direction in the vicinity of one end side and in the vicinity of the other end side in the circumferential direction of the small diameter section 31b of the adapter 3, and locking groove lines 31e and 31f are respectively formed between the protrusion line 31c in the vicinity of the one end side in the circumferential direction of the small diameter section 31b and the other end side in the circumferential direction of the large diameter section 31a (the right end portion of the large diameter section in
Then, in manufacturing of the container, at the time of making the fit-in tube section 31 of the adapter 3 be tightly fit into the upper chamber of the movable body 1, provided that the locking groove line 31e of the adapter 3 corresponding to a rotation starting position is fit into the vertical line 17 on the inner surface of the tube section 11 of the movable body 1 to make the adapter 3 be assembled to the movable body 1, in a mixing operation, when the movable body 1 is made to relatively rotate in the direction of an arrow in
The synthetic resins used for the above-described respective members are not particularly limited in type. For example, low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE), polypropylene (PP), and the like may be appropriately combined for use. In particular, in order to improve the liquid-tight performance between the respective members, it is preferable that LDPE or LLDPE is used for the bottom cover 2 and HDPE is used for the movable body 1 in order to improve the liquid-tight performance between the bottom cover 2 and the movable body 1. Further, it is preferable that HDPE is used for the movable body 1 and PP is used for the adapter 3 in order to improve the liquid-tight performance between the movable body 1 and the adapter 3. As a result of study by the present inventors, a combination of synthetic resins in which the liquid-tight performance between the respective members is maximized is, from a comprehensive point of view, in the case in which LLDPE is used for the bottom cover, HDPE is used for the movable body, PP is used for the adapter, PP is used for the container main body, LDPE is used for the nozzle, and PP is used for the cap.
The embodiment of the present invention has been described above with reference to
The components of the container of the present invention were manufactured by use of synthetic resins shown in Table 1, test samples (A to D) in which the movable bodies and the container main bodies filled with medicinal solutions were assembled into products were prepared, and the liquid-tight performance between the respective components of these test samples were evaluated. The evaluations of the liquid-tight performance were carried out so that the test samples were overturned to be left in a state in which normal pressure was reduced by 70 kPa, and after the pressure was returned to normal pressure ten minutes later, it was visually confirmed whether or not there was liquid leakage from the gaps between the fitting portions of the respective components. In addition, the test samples having shapes according to those in
The present invention may have broad applicability as a before-use mixing container in which it is possible to perform a mixing operation for two types of medicinal solutions in its container independently of an uncovering operation for a cap or the like.
DESCRIPTION OF REFERENCE NUMERALS
-
- 1 Movable body
- 3 Adapter
- 4 Container main body
- 11 Tube section
- 13 Inner tube
- 13a Ceiling plane
- 13b First opening portion
- 17 Vertical line
- 31 Fit-in tube section
- 31a Large diameter section
- 31b Small diameter section
- 35 Partition wall surface
- 35a Second opening portion
- 42 Lower mouth tube section
- A First medicinal solution
- B Second medicinal solution
Claims
1. A before-use mixing container comprising:
- a movable body which has a bottomed cylindrical tube section, a ceiled cylindrical inner tube which is consecutively installed upright on an inner side in a circumferential direction from an inner surface of the tube section, that partitions an internal space of the tube section into two upper and lower chambers, and a first opening portion drilled in a ceiling plane of the inner tube, and in which a first medicinal solution is contained in the lower chamber;
- an adapter which has a hollow cylindrical fit-in tube section which is tightly fit into the upper chamber of the movable body to be assembled so as to be rotatable with respect to the movable body, a partition wall surface which is provided on an inner surface of the fit-in tube section, and is tightly attached to the ceiling plane of the inner tube of the movable body in a state in which the partition wall is assembled to the movable body, and a second opening portion which is drilled in the partition wall surface so as not to overlap the first opening portion; and
- a container main body which has a lower mouth tube section which is tightly fit into the upper chamber surrounded by an upper surface of the partition wall surface of the adapter and the inner surface of the fit-in tube section, to be assembled so as not to be rotatable with respect to the adapter, and in which a second medicinal solution is contained, wherein
- when the movable body is relatively rotated with respect to the container main body, the first opening portion of the movable body and the second opening portion of the adapter are overlapped, and the container is capable of mixing the first medicinal solution and the second medicinal solution before use.
2. The before-use mixing container according to claim 1, wherein
- the fit-in tube section of the adapter is provided with a large diameter section and a small diameter section having circular arc shapes in plan view, and in a state in which the fit-in tube section of the adapter is assembled to the upper chamber of the movable body, the large diameter section and the small diameter section of the fit-in tube section are respectively spaced from the inner surface of the tube section of the movable body to generate gaps, and
- a vertical line with a height exceeding a spaced distance between the inner surface of the tube section and the large diameter section, and with a height which does not exceed a spaced distance between the inner surface of the tube section and the small diameter section is provided on the inner surface of the tube section of the movable body, and the longitudinal vertical line faces the small diameter section.
3. The before-use mixing container according to claim 2, wherein, when the movable body is relatively rotated with respect to the container main body and the vertical line provided on the inner surface of the tube section of the movable body reaches a boundary portion between the small diameter section and the large diameter section of the fit-in tube section, the first opening portion and the second opening portion are overlapped.
Type: Application
Filed: Apr 19, 2010
Publication Date: Feb 2, 2012
Inventors: Tadashi Otsuka (Hyogo), Takashi Fujimoto (Toyama)
Application Number: 13/260,496
International Classification: B65D 25/04 (20060101);