JP2014188193A - Infusion container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an infusion container capable of improving infusion and discharge properties of an infusion solution.SOLUTION: An infusion container 1 comprises: a cylindrical container body 2 for containing an infusion solution; and first and second mutually opposite openings 3 and 4 formed in the container body 2. The container body 2 comprises: a trunk 5 having a flat cross section; a first shoulder 6 formed from the trunk 5 to the first opening 3; and a second shoulder 7 formed from the trunk 5 to the second opening 4. The trunk 5 comprises two mutually opposite curving portions 11; and two side walls 12 mutually opposite in parallel. The dimension D1 between the apexes of the curving portions 11 and the dimension D2 between the side walls 12 satisfy a relational expression of 1.4<D1/D2<2.0.

Description

  The present invention relates to a resin-made infusion container used for containing an infusion solution.

  Conventionally, as a resin container for containing an infusion solution, a cylindrical container main body for containing an infusion solution, and an inlet and an outlet facing each other formed in the container main body, the container main body has a cross section An infusion container having a flat-shaped body, a first shoulder formed from the body to the injection port, and a second shoulder formed from the body to the outlet. It is known (see, for example, Patent Document 1).

Japanese Patent No. 4048337

  The container body of the infusion container formed of resin has flexibility, and the inside of the container body is in a pressurized or depressurized state before and after injecting the infusion liquid into the injection port or when discharging the infusion liquid from the outlet. It becomes. At that time, the container main body is deformed so as to follow the injection or discharge of the infusion solution, so that the injection or discharge of the infusion solution is performed well. In the infusion container described in Patent Document 1, the front wall and the back wall are relatively easily deformed, but the side walls and the vicinity of the upper and lower corners are not easily deformed, and the container body is good for infusion or discharge of the infusion. It is difficult to follow. Therefore, there exists a problem that workability | operativity at the time of injection | pouring and discharge | emission of infusion is not enough.

  Then, in view of the problem of the said prior art, this invention aims at providing the infusion container which can improve injection | pouring and discharge | emission property of infusion.

  As a result of intensive studies on the infusion and discharge properties of the infusion, the inventors have obtained an infusion container that can improve the workability during the injection and discharge by setting the dimensional ratio of the container body.

That is, the infusion container of the present invention is an infusion container provided with a cylindrical container main body in which an infusion is accommodated, and a pair of mouths facing each other formed in the container main body. A body having a flat cross section, a first shoulder formed from the body to one mouth, and a second shoulder formed from the body to the other mouth The body portion having a flat cross section is composed of two curved portions facing each other and two side wall portions facing each other in parallel, and the dimension D1 between the top portions of the curved portions and the distance between the side wall portions. The dimension D2 satisfies the following relational expression.
1.4 <D1 / D2 <2.0

  According to the infusion container of the present invention, the body portion having a flat cross section is composed of two curved portions facing each other and two side wall portions facing in parallel with each other, and the dimension between the tops of the curved portions is as follows. When the dimension between the side wall portions satisfies the above relational expression, the body portion of the container body can be remarkably easily deformed, and the shape change of the container body can be made to follow the infusion or discharge of the infusion well.

  It is preferable that the 1st corner | angular part which continues to each said curved part in the said 1st shoulder part is formed in the R shape which expands outward, and the curvature radius of this 1st corner | angular part is 6 mm-20 mm. By making the first corner portion continuous to each curved portion in the first shoulder portion into the above shape, the vicinity of the first corner portion can be easily deformed.

  It is preferable that the 2nd corner | angular part which continues to each said curved part in the said 2nd shoulder part is formed in R shape which swells outward, and the curvature radius of this 2nd corner | angular part is 6 mm-20 mm. By making the 2nd corner | angular part which follows each curved part in a 2nd shoulder part into the said shape, the vicinity of the said 2nd corner | angular part can be made easy to deform | transform.

  The 1st corner | angular part which continues to each said curved part in said 1st shoulder part, and the 2nd corner | angular part which continues to each said curved part in said 2nd shoulder part are formed in the planar shape or the shape close | similar to this. It is preferable. By forming the first corner portion that continues to each curved portion in the first shoulder portion and the second corner portion that continues to each curved portion in the second shoulder portion into the above shape, the first corner portion and the second corner portion The portion and the vicinity of both corner portions can be easily deformed.

  The 1st shoulder wall which continues to each said side wall part in the said 1st shoulder part, and the 2nd shoulder wall which continues to each said side wall part in the said 2nd shoulder part are formed in the planar shape or the shape close | similar to this. It is preferable. By forming the first shoulder wall that continues to each side wall portion in the first shoulder portion and the second shoulder wall that continues to each side wall portion in the second shoulder portion into the above shape, the first shoulder portion and the second shoulder portion And each side wall part which continues to these both shoulder parts can be made easy to change.

  As described above, according to the present invention, when the dimension between the tops of each curved part and the dimension between each side wall part in the trunk part satisfy a predetermined relational expression, the trunk part is significantly easily deformed, and the shape of the container body The change can be better followed by infusion or drainage of the infusion.

It is a front view of the infusion container concerning a 1st embodiment of the present invention. (A) is a top view of an infusion container, (b) is the side view. It is a front view of the infusion container which concerns on 2nd Embodiment of this invention. (A) is a top view of an infusion container, (b) is the side view.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an infusion container 1 made of polypropylene according to the first embodiment of the present invention, FIG. 2 (a) is a plan view of the infusion container 1, and (b) is a side view thereof. In the following description, the sides corresponding to the upper and lower sides in FIG. The infusion container 1 contains infusion solutions such as glucose solution, electrolyte solution, and physiological saline, and has a cylindrical container body 2 in which the infusion solution is accommodated and the container body 2 formed opposite to each other. First and second mouth portions 3 and 4 are provided.

  The container body 2 includes a body portion 5 having a flat cross section, a first shoulder 6 formed from the body portion 5 to the first mouth portion 3, and the body portion 5 to the second mouth portion 4. And a second shoulder 7 formed across. The first mouth 3 is formed with an upper collar 8 positioned at the upper end of the infusion container 1 and a middle collar 9 positioned at a predetermined interval below the upper collar 8. The second mouth portion 4 is formed with a smaller diameter than the first mouth portion 3, and is closed by a bottom portion 10 formed at the lower end thereof.

  The first shoulder 6 has a larger axial dimension than the second shoulder 7, and the second shoulder 7 is formed at a steeper angle than the first shoulder 6. The trunk portion 5 having a flat cross section is composed of two curved portions 11 facing each other and two side wall portions 12 facing each other in parallel. 2A, the two curved portions 11 positioned on the left and right are formed in the same shape and the same size, and the two side wall portions 12 positioned on the upper and lower sides in FIG. 2A are the same shape and the same size. It is formed with. Accordingly, the infusion container 1 is formed symmetrically on the left and right in FIG.

  The dimension D1 between the tops of each curved part 11 and the dimension D2 between each side wall part 12 satisfy a relational expression of 1.4 <D1 / D2 <2.0. By setting the numerical value obtained by dividing the dimension D1 between the tops of each curved part 11 by the dimension D2 between each side wall part 12 to such a range, the body part 5 of the container body 2 can be remarkably easily deformed. In the infusion container 1 of this embodiment, the dimension D1 between the tops of each curved part 11 is 68 mm, the dimension D2 between each side wall part 12 is 42 mm, and D1 / D2 is 1.6. Furthermore, it is more preferable that the dimension D1 between the tops of each curved part 11 and the dimension D2 between each side wall part 12 are 1.5 <D1 / D2 <1.7, and the body part 5 is more easily deformed. .

  The 1st corner | angular part 14 which continues to each curved part 11 in the 1st shoulder part 6 is formed in the R shape which swells outward. The curvature radius r1 of the first corner portion 14 is preferably 10 mm to 15 mm. The 2nd corner | angular part 15 following the each curved part 11 in the 2nd shoulder part 7 is formed in the R shape which bulges outward. The radius of curvature r2 of the second corner portion 15 is preferably 10 mm to 15 mm.

  As shown in FIG. 2 (b), each first shoulder wall 16 that continues to each side wall portion 12 in the first shoulder 6 and each second shoulder wall 17 that continues to each side wall portion 12 in the second shoulder 7. Is formed in an R shape that bulges outward.

  The first corner portion 14 and the second corner portion 15 are formed in an R shape that bulges outward, and the radii of curvature r1 and r2 are 6 mm to 20 mm, respectively, so that the vicinity of the first corner portion 14 and the second corner portion The vicinity of 15 can be easily deformed. That is, the vicinity of the first corner portion 14 and the vicinity of the second corner portion 15 can be easily and smoothly deformed as compared with the conventional infusion container having an angular corner.

  According to the infusion container 1 of the present embodiment, the body portion 5 having a flat cross section is composed of two curved portions 11 facing each other and two side wall portions 12 facing each other in parallel, and the top of each curved portion 11 When the distance dimension D1 and the dimension D2 between the side wall portions 12 satisfy a predetermined relational expression, the body portion 5 of the container body 2 is significantly easily deformed. Further, the first corner portion 14 and the second corner portion 15 are formed in an R shape that bulges outward, and the radius of curvature is within a predetermined numerical range, so that the vicinity of the first corner portion 14 and the second corner portion The vicinity of 15 is easily deformed, and can be easily and smoothly deformed with a smaller force than, for example, an infusion container having a conventional angular corner.

  And since it is easy to deform | transform the trunk | drum 5 remarkably, and the vicinity of the 1st corner | angular part 14 and the vicinity of the 2nd corner | angular part 15 can be deformed with small force with it, the shape change of the container main body 2 can be changed. It is possible to follow the injection or discharge well. Therefore, before or after injecting an infusion solution into the infusion port that is the first mouth portion 3 or when discharging the infusion solution from the infusion port that is the second mouth portion 4, the container body 2 follows the infusion or discharge of the infusion solution. The infusion solution can be injected and discharged satisfactorily. Thereby, the workability | operativity in the case of injection | pouring and discharge | emission of infusion can be improved.

  FIG. 3 is a front view of an infusion container 20 made of polypropylene according to the second embodiment of the present invention, FIG. 4 (a) is a plan view of the infusion container 20, and (b) is a side view thereof. The present embodiment is different from the first embodiment in that the first shoulder wall 22 in the first shoulder portion 21 continues to each side wall portion 12 and the second shoulder wall in the second shoulder portion 23 continues to each side wall portion 12. 24 is different in shape. In addition, shapes other than the site | part demonstrated below are common in 1st Embodiment.

  In the first embodiment, the first shoulder wall continuous to each side wall portion in the first shoulder portion is curved outward, but in the present embodiment, as shown in FIG. The 1st shoulder wall 22 which continues to each side wall part 12 in FIG. Similarly, the 2nd shoulder wall 24 which continues to each side wall part 12 in the 2nd shoulder part 23 is formed in planar shape. By making the first shoulder wall 22 continuous to each side wall 12 in the first shoulder 21 and the second shoulder wall 24 continuous to each side wall 12 in the second shoulder 23 flat, the first shoulder 21, the second shoulder portion 23, and the side wall portions 12 continuing to the shoulder portions 21 and 23 can be easily deformed.

  In 2nd Embodiment, although the 1st shoulder wall 22 continuing to each side wall part 12 in the 1st shoulder part 21 and the 2nd shoulder wall 24 continuing to each side wall part 12 in the 2nd shoulder part 23 are made into planar shape. These shapes may be close to a flat shape that slightly warps outward or inward. Even in this case, it is possible to easily deform the first shoulder portion, the second shoulder portion, and the side wall portions continuous to both the shoulder portions.

  As described above, the first shoulder portion 21, the second shoulder portion 23, and the side wall portions 12 continuing to the shoulder portions 21, 23 can be easily and smoothly deformed with a small force. Can follow the injection or discharge of the infusion well. Accordingly, the container body 2 follows the injection or discharge of the infusion before and after injecting the infusion into the infusion inlet that is the first mouth 3 or when the infusion is discharged from the infusion outlet that is the second mouth 4. The infusion solution can be injected and discharged satisfactorily. Thereby, the workability | operativity in the case of injection | pouring and discharge | emission of infusion can be improved.

  The infusion container of each embodiment exemplifies the present invention, and the dimensions of each part, the shape of the mouth, and the like can be appropriately changed. The infusion container of the present invention may be manufactured by any molding method. As the resin used for molding, a known resin having flexibility such as polyethylene, polyester, nylon, vinyl chloride, chlorinated polyethylene, and ethylene-vinyl acetate copolymer can be adopted in addition to polypropylene. The shape of the infusion container is not limited to each embodiment. For example, a first corner portion that continues to each curved portion in the first shoulder portion and a second corner portion that continues to each curved portion in the second shoulder portion. May be formed in a planar shape or a shape close thereto. In this case, the first corner portion, the second corner portion, and the vicinity of both corner portions can be easily deformed.

DESCRIPTION OF SYMBOLS 1, 20 Infusion container 2 Container main body 3 1st opening part 4 2nd opening part 5 Trunk part 6, 21 1st shoulder part 7, 23 2nd shoulder part 11 Bending part 12 Side wall part 14 1st corner | angular part 15 1st Diagonal portion 16, 22 1st shoulder wall 17, 24 2nd shoulder wall D1 Dimension between tops of each curved part D2 Dimension between each side wall part

Claims (5)

An infusion container comprising a cylindrical container main body in which an infusion solution is stored, and a pair of mouths facing each other formed in the container main body,
The container body includes a body having a flat cross section, a first shoulder formed from the body to one mouth, and a second shoulder formed from the body to the other mouth. And
The trunk section having a flat cross section is composed of two curved portions facing each other and two side wall portions facing in parallel with each other, and the dimension D1 between the tops of the curved parts and the dimension D2 between the side walls. Satisfy | fills the following relational expression, The infusion container characterized by the above-mentioned.
1.4 <D1 / D2 <2.0   A first corner portion that continues to each of the curved portions in the first shoulder portion is formed in an R shape that bulges outward, and a radius of curvature of the first corner portion is 6 mm to 20 mm. The infusion container according to claim 1.   A second corner portion that continues to the curved portions of the second shoulder portion is formed in an R shape that bulges outward, and a curvature radius of the second corner portion is 6 mm to 20 mm. The infusion container according to claim 1 or 2.   The 1st corner | angular part which continues to each said curved part in said 1st shoulder part, and the 2nd corner | angular part which continues to each said curved part in said 2nd shoulder part are formed in the planar shape or the shape close | similar to this. The infusion container according to claim 1.   The 1st shoulder wall which continues to each said side wall part in the said 1st shoulder part, and the 2nd shoulder wall which continues to each said side wall part in the said 2nd shoulder part are formed in the planar shape or the shape close | similar to this. The infusion container according to any one of claims 1 to 4.

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