CN219783187U

CN219783187U - Inner cover-free film cover for infusion container and infusion container

Info

Publication number: CN219783187U
Application number: CN202222002886.6U
Authority: CN
Inventors: 刘祥华; 谭益民; 刘师宏; 夏岳韬; 郑湘明; 陈一; 刘超
Original assignee: Hunan China Sun Pharmaceutical Machinery Co Ltd
Current assignee: Hunan China Sun Pharmaceutical Machinery Co Ltd
Priority date: 2022-07-29
Filing date: 2022-07-29
Publication date: 2023-10-03
Anticipated expiration: 2032-07-29

Abstract

The utility model discloses an inner cap-free type film covering cover for an infusion container, which comprises an outer cap, wherein the outer cap comprises a puncture cavity, an inner plug is arranged in the puncture cavity, the top of the puncture cavity is sealed, the bottom of the puncture cavity is provided with an inner pressure edge which is formed by bending and is used for tightly supporting and fixing the inner plug through hot pressing bending, and the film covering cover also comprises a barrier film which is covered on the lower end face of the inner pressure edge and is used for sealing the bottom of the puncture cavity. In addition, the utility model also discloses an infusion container which comprises the infusion container and is covered by the inner-cap-free film.

Description

Inner cover-free film cover for infusion container and infusion container

Technical Field

The utility model relates to the technical field of medicine packaging, in particular to an inner cover-free film cover for an infusion container. In addition, the utility model also relates to an infusion container comprising the infusion container without the inner cover type film cover.

Background

At present, the common infusion container lid is generally a combined structure, and it mainly includes enclosing cover, interior stopper and inner cup, and the enclosing cover holds interior stopper, and the inner cup is laid in the enclosing cover in order to play the effect of fixed interior stopper for the integral structure can not take place to loosen when needle tubing puncture interior stopper infusion, still prevents simultaneously that interior stopper and liquid medicine from contacting, and interior stopper mainly avoids the inner cup to be by the needle tubing after the puncture outside the liquid medicine exudation infusion container.

However, because the inner cover needs to fix the inner plug, prevents the inner plug from loosening, has certain requirements on the strength of the inner cover, also needs to avoid being broken after being punctured by the needle tube, has certain requirements on the toughness of the inner cover, and meanwhile, the inner cover is in direct contact with the liquid medicine, has certain requirements on the specificity of the material of the inner cover, and based on the requirements, the material cost of the inner cover is relatively expensive, and the overall manufacturing cost of the infusion container cover is improved.

Disclosure of Invention

The utility model provides an inner cover-free type film covering cover for an infusion container and the infusion container, which are used for solving the technical problem that the manufacturing cost of the infusion container cover is high due to the fact that the material cost of an inner cover of the existing infusion container cover is high.

According to one aspect of the utility model, there is provided an inner cap-free film cover for an infusion container, comprising an outer cap, wherein the outer cap comprises a puncture cavity, an inner plug is arranged in the puncture cavity, the top of the puncture cavity is sealed, the bottom of the puncture cavity is provided with an inner pressure edge which is formed by bending and is used for tightly fixing the inner plug through hot pressing and bending, and the film cover further comprises a barrier film which is covered on the lower end face of the inner pressure edge and is used for sealing the bottom of the puncture cavity.

As a further improvement of the above technical scheme:

further, a bending concave angle which is used for facilitating the fixed length and bending molding of the internal pressure edge during the hot pressing is concavely arranged between the internal pressure edge and the outer cover.

Further, the thickness of the corner between the inner pressure edge and the outer cover, which is concavely provided with a bending concave angle, is in the range of 0.4-0.8mm.

Further, a chamfer is arranged at the corner between the inner side surface of the inner pressure side and the lower end surface of the inner pressure side.

Further, the thickness of the inner pressure side is in the range of 1.0-2.0mm.

Further, a clearance distance for the side hole part of the side hole puncture needle to be completely separated from the inner plug when the side hole puncture needle contacts the part to be punctured of the barrier film is reserved between the barrier film and the part to be punctured of the inner plug.

Further, the clearance distance is more than or equal to 4.5mm.

Further, the bottom of the inner plug is concavely provided with a first inner spherical surface which is arranged in the middle, and the inner pressure edge is provided with a pressing boss which is upwardly protruded and used for pressing the first inner spherical surface.

Further, an installation protrusion is arranged at the corner between the lower end face of the inner plug and the first inner spherical surface in a downward protruding mode, and a embedding groove which is arranged corresponding to the installation protrusion and used for embedding the installation protrusion is formed in the upper end face of the inner pressure edge in a concave mode.

According to another aspect of the present utility model, there is also provided an infusion container including the infusion container described above covered with the inner-cap-free film.

The utility model has the following beneficial effects:

the utility model relates to an inner cover-free film covering for an infusion container, which comprises an outer cover with a puncture cavity, wherein the outer cover is firstly obtained through an injection molding process to plug the inner plug into the puncture cavity, the top of the puncture cavity is in a sealing state, the inner plug is prevented from being polluted by contact with the outer environment, the inner pressure edge and the outer cover are integrally molded through the injection molding process, the outer cover axially extends to form an unbent inner pressure edge during injection molding, then the inner pressure edge is bent towards the inner plug through a hot pressing process, the compactness of a matrix is increased in the hot pressing bending process, the strength and the surface smoothness of the matrix are increased, the bent inner pressure edge is fully adhered to and coated on the surface of the inner plug, the reliability is high, finally, a barrier film is welded and covered on the lower end face of the inner pressure edge through a welding process, so as to seal the bottom of the puncture cavity, the liquid medicine in the infusion container is prevented from being polluted by contact with the inner plug, and meanwhile, the barrier film can also prevent inner plug scraps generated by puncture of a puncture needle from falling into the liquid medicine.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The present utility model will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of a construction of an inner cap-less cover for an infusion container according to a preferred embodiment of the utility model;

fig. 2 is a schematic cross-sectional view of an infusion container covered with an inner cap-less cover according to a preferred embodiment of the utility model.

Legend description:

1. an outer cover; 11. a puncture cavity; 12. a puncture part; 2. an inner plug; 21. a first inner spherical surface; 22. mounting the bulge; 23. a second inner spherical surface; 3. internal pressure edge; 31. abutting against the boss; 32. embedding and fixing the groove; 33. bending the concave angle; 4. a barrier film; 5. the cap is easy to fold.

Detailed Description

Embodiments of the utility model are described in detail below with reference to the attached drawing figures, but the utility model can be practiced in a number of different ways, as defined and covered below.

FIG. 1 is a schematic view of a construction of an inner cap-less cover for an infusion container according to a preferred embodiment of the utility model; fig. 2 is a schematic cross-sectional view of an infusion container covered with an inner cap-less cover according to a preferred embodiment of the utility model.

As shown in fig. 1 and 2, the inner cap-free film covering cover for the infusion container of the embodiment comprises an outer cap 1, wherein the outer cap 1 comprises a puncture cavity 11, an inner plug 2 is arranged in the puncture cavity 11, the top of the puncture cavity 11 is sealed, an inner pressure edge 3 for tightly fixing the inner plug 2 through hot-pressing bending forming is arranged at the bottom of the puncture cavity 11, and a barrier film 4 for sealing the bottom of the puncture cavity 11 is further attached to the lower end face of the inner pressure edge 3. Specifically, the inner cap-free film covering for the infusion container is characterized in that firstly, the outer cap 1 with the puncture cavity 11 is obtained through an injection molding process, so that the inner plug 2 is plugged into the puncture cavity 11, the top of the puncture cavity 11 is in a sealing state, the inner plug 2 is prevented from being polluted by contact with the external environment, the inner cap 3 and the outer cap 1 are integrally formed through the injection molding process, the outer cap 1 axially extends to form the unbent inner cap 3 during injection molding, then the inner cap 3 is bent towards the inner plug 2 through a hot pressing process, the matrix compactness of the inner cap 3 is increased in the hot pressing bending process, the matrix strength and the surface smoothness are increased, the bent inner cap 3 is completely adhered to and coated on the surface of the inner cap 2, the reliability is high, finally, the barrier film 4 is welded and covered on the lower end face of the inner cap 2 through a welding process, so that the bottom of the puncture cavity 11 is prevented from being polluted by contact with the inner cap 2, meanwhile, the barrier film 4 can also prevent the inner cap 2 generated by puncture of a puncture needle from falling into the liquid medicine, the inner cap 1 is accommodated through the outer cap 1, then the inner cap 3 and the inner cap 4 is matched with the barrier film 4 to fix the inner cap 2 in the hot pressing bending process, compared with the inner cap 2, the sealing material is high in cost and the sealing requirement for the inner cap 2 is realized, and the infusion container is relatively high in manufacturing cost and is relatively high compared with the prior art, and the sealing material is suitable for the inner cap 2, and is relatively high in manufacturing cost and relatively high in comparison with the sealing material, and sealing requirement is used for the inner cap 2, and is relatively high in the sealing cost and relatively high compared with the sealing technology and sealing cost and sealing cap. Alternatively, the inner plug 2 is made of silica gel having a certain elasticity.

In this embodiment, a bending reentrant corner 33 for facilitating the fixed length and bending formation of the inner pressure side 3 during hot pressing is concavely provided between the inner pressure side 3 and the outer lid 1. Specifically, the setting of the concave angle 33 of bending is easy to buckle when the internal pressure limit 3 is hot pressed to guarantee the level of the lower terminal surface after the internal pressure limit 3 is buckled and formed, and then improve the leakproofness after the welding covers barrier film 4, and the length of buckling easily depends on the position of the concave angle 33 of bending, makes the relative fixed of each size of internal pressure limit 3, is convenient for injection moulding. It should be understood that the thickness of the base body of the bending concave angle 33 is thin, and the local welding and reinforcement are performed to a certain extent at the position of the bending concave angle 33 through hot pressing, so that the bearing capacity of the bending part is improved.

In this embodiment, the thickness of the corner between the inner pressure side 3 and the outer lid 1, in which the bending reentrant angle 33 is concavely provided, is in the range of 0.3 to 1.0mm. Specifically, when the thickness of the corner between the inner pressure side 3 and the outer lid 1, where the bending reentrant corner 33 is concavely provided, is between 0.3 and 1.0mm, the inner pressure side 3 is easily bent, and the strength of the corner between the inner pressure side 3 and the outer lid 1, where the bending reentrant corner 33 is concavely provided, is ensured; when the thickness of the corner part concavely provided with the bending concave angle 33 between the inner pressure edge 3 and the outer cover 1 is smaller than 0.3mm, the strength of the corner part concavely provided with the bending concave angle 33 between the inner pressure edge 3 and the outer cover 1 cannot be ensured, and the corner part is easy to break when hot-pressed or in the use process; when the thickness of the corner between the inner pressure edge 3 and the outer cover 1, which is concavely provided with the bending concave angle 33, is more than 1.0mm, the inner pressure edge 3 is not easy to bend. Preferably, the thickness of the corner between the inner pressure side 3 and the outer cap 1, in which the bending reentrant angle 33 is concavely provided, is in the range of 0.4-0.8mm.

As shown in fig. 2, in the present embodiment, the free end of the inner pressure side 3 is provided with a chamfer at a corner on the side away from the inner plug 2. Specifically, the inner pressure edge 3 is conveniently bent and formed upwards by hot pressing through the material used at the corner of one side of the free end of the inner pressure edge 3 far away from the inner plug 2.

In this embodiment, the thickness of the inner pressure side 3 is in the range of 0.8 to 3.0mm. Specifically, when the thickness of the inner pressure edge 3 is between 0.8 and 3.0mm, the strength of the inner pressure edge 3 is reliable, the inner plug 2 is stably supported, and meanwhile, the inner plug is convenient to bend and form during hot pressing; when the thickness of the inner pressure edge 3 is smaller than 0.8mm, the strength of the inner pressure edge 3 cannot be ensured, and stable support of the inner plug 2 may not be realized when the puncture needle punctures; when the thickness of the inner pressure edge 3 is larger than 3.0mm, the inner stress of the inner pressure edge 3 when being bent is overlarge, the inner pressure edge is easy to break at the bending position, and the bending difficulty is high. It should be understood that, since the pressure of the puncture needle is mainly borne by the inner pressure side 3 when it punctures the inner plug 2, the thickness dimension of the inner pressure side 3 needs to be strictly ensured to ensure reliable support. It will be appreciated that the present utility model, due to the arrangement of the bending re-entrant angle 33, enables bending even if the thickness of the inner pressure side 3 is suitably increased. Preferably, the thickness of the inner pressure side 3 is in the range of 1.0-2.0mm.

As shown in fig. 2, in this embodiment, a clearance distance is left between the barrier film 4 and the portion to be pierced of the inner plug 2 for the side hole portion of the side hole puncture needle to completely separate from the inner plug 2 when the side hole puncture needle contacts the portion to be pierced of the barrier film 4. Specifically, through the clearance distance, the side hole of the side hole puncture needle is completely separated from the inside of the inner plug 2 when the side hole puncture needle punctures the barrier film 4, so that the puncture cutting force from the largest to the smallest is effectively avoided when the puncture needle punctures the barrier film 4, and further, the falling scraps of the inner plug 2 generated by the puncture of the side hole puncture needle are stopped, and the falling scraps probability of the inner plug 2 is reduced to the greatest extent; the clearance distance can also effectively ensure that the part of the inner plug 2 is excessively compacted, eliminate the internal stress of the inner plug 2 under compression, give the inner plug 2 a relatively free stretching space during puncture, fully prevent the elastic action of the inner plug 2, furthest reduce the cutting resistance generated during puncture, and prevent or furthest reduce the probability of falling scraps of the inner plug 2 during puncture of the side hole needle; meanwhile, the inner plug 2 scraps possibly generated can be isolated, namely the inner plug 2 scraps are stored between the barrier film 4 and the inner plug 2, so that the probability that the inner plug 2 scraps enter the liquid medicine is stopped or reduced to the greatest extent.

In this embodiment, the clearance distance is not less than 4.5mm. Specifically, when the clearance distance is greater than or equal to 4.5mm, the side hole puncture needle can have enough avoidance space, and the inner plug 2 is not easy to jump tightly in the puncture process, so that the chips generated by cutting the inner plug 2 by the side hole puncture are reduced.

As shown in fig. 2, in this embodiment, the bottom of the inner plug 2 is provided with a first inner spherical surface 21 concavely arranged upward and centrally arranged, and the inner pressure edge 3 is provided with a pressing boss 31 for pressing the first inner spherical surface 21 by hot pressing. Specifically, the puncture distance when the puncture needle punctures the inner plug 2 is reduced through the first inner spherical surface 21, the puncture difficulty is reduced, the clearance distance is increased, the falling scraps of the inner plug 2 generated during puncturing are stopped or reduced to the greatest extent, and the first inner spherical surface 21 is abutted through the abutting boss 31, so that the inner plug 2 is stably supported. It should be appreciated that the abutment boss 31 is formed by hot pressing, and therefore, the abutment boss 31 clasps the first inner spherical surface 21 during hot pressing, with high reliability.

As shown in fig. 2, in this embodiment, a mounting protrusion 22 is provided to protrude downward at a corner between the lower end surface of the inner plug 2 and the first inner spherical surface 21, and an upper end surface of the inner pressure side 3 is provided with a caulking groove 32 for being formed in an uneven shape by hot pressing and for being caulked and fitted with the mounting protrusion 22. Specifically, the mounting protrusion 22 is fixedly embedded through the embedding groove 32 so as to prevent the inner plug 2 from moving radially, thereby ensuring the stability of the inner plug 2 when the puncture needle punctures and realizing the stable support of the inner plug 2. It should be appreciated that the caulking groove 32 is formed by hot pressing, and thus, the caulking groove 32 is held tightly against the mounting boss 22 during hot pressing, with high reliability.

As shown in fig. 2, in this embodiment, the outer cover 1 includes two puncture chambers 11 for infusion and dispensing respectively, and the puncture chambers 11 are arranged in one-to-one correspondence with the inner plugs 2. Specifically, the inner plug 2 for dispensing and the inner plug 2 for transfusion are respectively arranged in the two puncture cavities 11, so that the dispensing and the transfusion are convenient and safe, and the liquid medicine is prevented from being polluted. Optionally, the size of the inner plug 2 for infusion is larger than the size of the inner plug 2 for dispensing so as to be convenient for medical staff to distinguish when in use. It should be understood that a steel needle may be used for dispensing and a plastic needle may be used for infusion, so that the size of the infusion stopper 2 is larger than the size of the dispensing stopper 2. Optionally, the size of the inner plug 2 for transfusion is more than or equal to 9mm. Optionally, the size range of the inner plug 2 for dispensing is not less than 3mm. Optionally, the inner plug 2 for transfusion and the inner plug 2 for dispensing are respectively in different colors so as to be convenient for medical staff to distinguish when in use. As shown in fig. 2, in this embodiment, the covering film cover further includes a frangible cap 5 sealingly connected to the top of the puncture chamber 11 for exposing the inner plug 2 after being folded away. Specifically, the top of puncture chamber 11 is sealed to easy lid 5, avoids interior stopper 2 to receive external environment's pollution, and during the reuse, breaks away easy lid 5, can expose interior stopper 2, the pjncture needle puncture of being convenient for. Optionally, in another embodiment, the covering film further comprises a pull ring which is connected to the top of the puncture cavity 11 in a sealing manner.

In this embodiment, as shown in fig. 2, the top of the puncture cavity 11 is provided with a puncture hole for matching with a puncture needle, and the frangible cap 5 covers the puncture hole to seal the top of the puncture cavity 11, and the diameter of the puncture hole ranges from 5.3 mm to 5.6mm. Specifically, when the diameter of the puncture hole is between 5.3 and 5.6mm, the puncture hole is matched with the size of the puncture needle, so that the transfusion operation is convenient.

As shown in fig. 1 and 2, in the present embodiment, the top of the outer cap 1 is provided with a piercing portion 12 protruding upward, and the bottom of the piercing portion 12 is recessed upward to form a piercing cavity 11. Specifically, the puncture cavity 11 is formed by the puncture part 12, and since the puncture part 12 protrudes upward to guide the puncture needle, the puncture transfusion operation is facilitated.

In this embodiment, the barrier film 4 is a multilayer co-extrusion film, and 2-5 layers of the multilayer co-extrusion film are arranged, and the thickness range of the barrier film 4 is 0.18-0.50mm. Specifically, the multilayer co-extrusion film has the characteristics of strong barrier property, oxygen prevention, water resistance, moisture resistance, high mechanical property, high anti-explosion performance, strong puncture resistance, tear resistance, high temperature resistance, low temperature resistance, oil resistance, good fragrance retention, no toxicity, no smell, good heat sealing performance, softness, high permeability, high composite peeling strength, strong environmental resistance and the like, is not easy to puncture and burst after being stuck, has uniform film thickness, is not easy to puncture and block the needle phenomenon, can block insoluble particles on the surface of the side hole puncture needle outside during puncture, and effectively prevents the probability that the side hole puncture needle carries insoluble particles into an infusion solution. The elasticity of the multilayer co-extrusion film is utilized to form the elastic vibration force when the side hole puncture needle punctures the multilayer co-extrusion film, so that scraps on the surface of the side hole puncture needle can be separated from the side hole part of the side hole puncture needle and the surface of the needle when the multilayer co-extrusion film is formed, and the scraps are blocked outside by the multilayer co-extrusion film, so that puncture scraps are reduced or even eliminated. The lower end face of the inner pressure edge 3 is welded with a multi-layer co-extrusion film through heat welding or ultrasonic wave, and the production process characteristics of the multi-layer co-extrusion film in blow molding determine that the uniformity, the accuracy and the stability of the quality control in the production process are far higher than those of the injection molding process, and repeated adaptation and verification prove that the possibility of falling scraps in puncturing can be basically stopped or furthest reduced by adopting the multi-layer co-extrusion film for transfusion; insoluble particles in the transfusion solution are reduced to ensure the transfusion safety. Meanwhile, the multilayer co-extrusion film is provided with two to five layers, and the thickness of the multilayer co-extrusion film is 0.18-0.5mm. Cutting of the side hole puncture on the multilayer co-extrusion film can be reduced, so that puncture scraps are reduced; the multi-layer enclasping and blocking of the side hole puncture needle are formed, so that the scraps on the surface of the side hole puncture needle can be completely blocked, and puncture scraps are reduced or even eliminated.

As shown in fig. 1, in this embodiment, the outer cover 1 is cylindrical, and a chamfer is provided at the outer circumferential side corner of the outer cover 1. Specifically, the chamfering reduces mutual friction between the assembling machine and the trimming machine in the assembling process of the outer cover 1, and reduces the probability of chip generation, thereby reducing chips generated in the assembling process and chips on the inner and outer surfaces of the assembled film cover.

As shown in fig. 2, in this embodiment, the top of the inner plug 2 is provided with a second inner spherical surface 23 concavely arranged and centrally arranged. Specifically, the puncture distance of the puncture needle when puncturing the inner plug 2 is reduced through the second inner spherical surface 23, so that the puncture difficulty is reduced.

The infusion container of the embodiment comprises the infusion container covered by the inner-cap-free film. Specifically, through adopting foretell infusion container to cover with no inner cup formula tectorial membrane to reduce the manufacturing cost of infusion container, the practicality is strong, convenient to popularize and use.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an infusion container is with no inner cup formula tectorial membrane lid, includes enclosing cover (1), enclosing cover (1) including puncture chamber (11), has set up interior stopper (2) in puncture chamber (11), its characterized in that, the top of puncture chamber (11) is sealed, and the bottom of puncture chamber (11) is equipped with and is used for pressing interior limit (3) of fixed interior stopper (2) with supporting through hot pressing bending forming, still adheres to on the lower terminal surface of interior limit (3) and is used for sealing barrier film (4) of the bottom of puncture chamber (11).

2. The inner cap-free film cover for infusion containers according to claim 1, wherein a bending concave angle (33) for facilitating the fixed length and bending formation during the hot pressing of the inner pressure edge is concavely arranged between the inner pressure edge (3) and the outer cap (1).

3. The inner cap-less film cover for infusion containers according to claim 2, characterized in that the thickness at the corner between the inner pressure side (3) and the outer cap (1) where the bending reentrant angle (33) is concavely provided is in the range of 0.3-1.0mm.

4. The infusion container is covered with an inner cap-less film according to claim 1, wherein the free end of the inner pressure edge (3) is provided with a chamfer on the side facing away from the inner stopper (2).

5. The infusion container is covered with an inner cap-less film according to claim 1, wherein the thickness of the inner pressure side (3) is in the range of 0.8-3.0mm.

6. The inner cap-less type of covering membrane for an infusion container according to any one of claims 1 to 5, wherein a clearance distance is left between the barrier membrane (4) and the site to be pierced of the inner plug (2) for the side hole site of the side hole puncture needle to completely separate from the inner plug (2) when the side hole puncture needle contacts the site to be pierced of the barrier membrane (4).

7. The cover without inner cap for an infusion container according to claim 6, wherein the clearance is not less than 4.5mm.

8. The inner cap-free film cover for an infusion container according to any one of claims 1 to 5, wherein the bottom of the inner plug (2) is provided with a first inner spherical surface (21) concavely arranged upward and centrally arranged, and the inner pressure edge (3) is provided with a pressing boss (31) for pressing the first inner spherical surface (21) by hot pressing.

9. The inner cap-free type film covering for infusion containers according to claim 8, wherein the outer cap (1) comprises two puncture cavities (11) for infusion and dispensing respectively, and the puncture cavities (11) are arranged in one-to-one correspondence with the inner plugs (2).

10. An infusion container comprising the infusion container of any one of claims 1 to 9 covered with an inner-cap-free film.