CN106726558B - Pull ring combined cover for infusion container and infusion container - Google Patents
Pull ring combined cover for infusion container and infusion container Download PDFInfo
- Publication number
- CN106726558B CN106726558B CN201611191317.3A CN201611191317A CN106726558B CN 106726558 B CN106726558 B CN 106726558B CN 201611191317 A CN201611191317 A CN 201611191317A CN 106726558 B CN106726558 B CN 106726558B
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- cover
- inner sealing
- rubber plug
- side hole
- sealing cover
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- 238000007789 sealing Methods 0.000 claims abstract description 157
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- 238000000034 method Methods 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 28
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- 238000004519 manufacturing process Methods 0.000 claims description 19
- 238000001746 injection moulding Methods 0.000 claims description 18
- 239000003978 infusion fluid Substances 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1412—Containers with closing means, e.g. caps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/05—Containers specially adapted for medical or pharmaceutical purposes for collecting, storing or administering blood, plasma or medical fluids ; Infusion or perfusion containers
- A61J1/10—Bag-type containers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1406—Septums, pierceable membranes
Abstract
The invention discloses a pull ring combined cover for an infusion container and the infusion container. The pull ring combined cover for the infusion container comprises an outer cover, a rubber plug and an inner sealing cover, wherein the outer cover is provided with a pull ring, the pull ring, a tearing area, the rubber plug and the inner sealing cover are correspondingly arranged up and down to form a circuit to be punctured, the part to be punctured on the lower surface of the rubber plug is provided with an upper concave groove, and a clearance distance is reserved between the upper groove bottom of the upper concave groove and the part to be punctured of the inner sealing cover; or the part to be punctured on the upper surface of the inner sealing cover is provided with a lower concave groove, and a clearance distance is reserved between the bottom of the lower concave groove and the part to be punctured on the lower surface of the rubber plug; or the part to be punctured of the lower surface of the rubber plug is provided with an upper concave groove, the part to be punctured of the upper surface of the inner sealing cover is provided with a lower concave groove, and a clearance distance is reserved between the upper groove bottom of the upper concave groove and the lower groove bottom of the lower concave groove. Can reduce or even avoid the puncturing process carry in transfusion the debris in the container is removed from the container, insoluble particles in the transfusion solution are reduced to ensure the transfusion safety.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a pull ring combined cover for an infusion container. In addition, the invention also relates to an infusion container comprising the pull ring combined cover for the infusion container.
Background
Infusion is a large-dose (more than 50ml per administration) injection that is infused into the body by intravenous drip, and is usually packaged in a glass or plastic infusion container. When in use, the infusion device is used for adjusting the dropping speed, continuously and stably entering the vein to supplement body fluid, electrolyte or provide nutrient substances. Because the dosage is large and the blood is directly fed into the device, the quality requirement is high and the production process requirement is high.
In recent years, research at home and abroad has found that insoluble particles present in a medicinal liquid inevitably enter the human body through intravenous infusion or intravenous injection, thereby causing an acute reaction or potential danger, which is serious and durable. These include mainly vascular embolism, infarction, hemorrhage, granuloma, pulmonary fibrosis, anaphylaxis, cancer reaction, pyrogenic reaction, phlebitis, thrombocytopenia, increased venous pressure, pulmonary arterial hypertension, etc.
The existing transfusion container adopts a large quantity of plastic large transfusion soft bags or bottle packages due to the reasons of labor cost, material cost, production process and the like, and the welded combined cover for the large transfusion soft bags or bottle packages is a passage for contacting a medicine adding needle and a transfusion device (needle) with transfusion liquid medicine in the container, so that the quality of the combined cover directly influences the quality of the transfusion liquid medicine.
The combined cover mainly comprises an outer cover, a rubber plug and an inner cover, and is protected by sealing layer by layer, but a large amount of insoluble particles still exist to generate risks. Firstly, the infusion container, the plastic outer cover and the plastic inner cover are different along with different methods of product design, injection molding manufacture, medicine production process friction, clinic use of side hole puncture needle cutting and the like, and unreasonable structural design of the traditional product, and the repeated test and verification prove that the pollution degree of the generated particles is different; secondly, the rubber plug is mostly a rubber plug, the main component of the rubber plug is synthetic rubber, and the rubber plug also contains sulfur, zinc oxide, carbon ink, talcum powder and the like, and the impurities are easy to fall off to form insoluble particles; and the side hole puncture needle and the bevel connection puncture needle sequentially penetrate through the rubber plug and the inner cover in the puncture process, and the side hole needle or the bevel connection needle can carry insoluble particles generated by the rubber plug and the inner cover into the infusion solution in order, so that the insoluble particles of the infusion solution are increased. And the clinical use of the traditional product is characterized in that rubber plug scraps are basically generated when the side hole needle punctures, and the bevel connection needle is basically formed by inner cover plastic scraps.
Disclosure of Invention
The invention provides a pull ring combined cover for an infusion container and the infusion container, which are used for solving the technical problem that insoluble particles generated by a rubber plug and an inner cover are easily brought into an infusion solution at the side hole part of a side hole puncture needle in the puncture using process of the traditional combined cover.
According to one aspect of the invention, a pull ring combined cover for an infusion container is provided, which comprises an outer cover for sealing connection of the infusion container, a rubber plug positioned in an inner cavity of the outer cover and used for holding a side hole puncture needle to realize puncture sealing, and an inner sealing cover for sealing the rubber plug in the inner cavity of the outer cover, wherein the outer cover is provided with a pull ring for exposing the rubber plug after pulling a tearing area on the surface of the outer cover open, the pull ring, the tearing area, the rubber plug and the inner sealing cover are correspondingly arranged up and down to form a line to be punctured, a part to be punctured on the lower surface of the rubber plug is provided with an upper concave groove, and a clearance distance for completely separating the side hole part of the side hole puncture needle from the rubber plug when the side hole puncture needle contacts the part to be punctured of the inner sealing cover is reserved between the upper groove bottom of the upper concave groove and the part to be punctured of the inner sealing cover; or the part to be punctured on the upper surface of the inner sealing cover is provided with a lower concave groove, and a clearance distance for the side hole part of the side hole puncture needle to be completely separated from the rubber plug when the side hole puncture needle contacts the part to be punctured on the inner sealing cover is reserved between the lower groove bottom of the lower concave groove and the part to be punctured on the lower surface of the rubber plug; or the part to be punctured of the lower surface of the rubber plug is provided with an upper concave groove, the part to be punctured of the upper surface of the inner sealing cover is provided with a lower concave groove, and a clearance distance for the side hole part of the side hole puncture needle to be completely separated from the rubber plug when the side hole puncture needle contacts the part to be punctured of the inner sealing cover is reserved between the upper groove bottom of the upper concave groove and the lower groove bottom of the lower concave groove.
Further, the clearance distance is more than or equal to 4.5mm.
Further, a puncture part of the inner sealing cover is provided with a vertical puncture hole for guiding the puncture needle of the side hole to penetrate, and the vertical puncture hole is covered with a multi-layer co-extrusion film for transfusion for reducing scraps in the puncture process and blocking scraps of the rubber plug. The multilayer co-extrusion film for transfusion is formed by adopting a blow molding process, the physical thickness of the co-extrusion film for transfusion produced by the process is uniform, the inherent quality uniformity of blow molding plastic is far higher than that of products produced by the traditional injection molding process, and the defects that the injection molding process of the puncture part of the inner sealing cover is easily influenced by the quality fluctuation of raw materials, the quality and stability of injection molding equipment, a mold and auxiliary equipment, process parameters and the like are overcome.
Further, the multi-layer co-extrusion film for transfusion is provided with two to five layers, and the thickness of the multi-layer co-extrusion film for transfusion is 0.18mm-0.5mm; the transfusion multi-layer co-extrusion film is welded on the inner sealing cover through thermal welding or ultrasonic welding and seals the vertical puncture hole of the inner sealing cover; or the infusion multilayer co-extrusion film is coated on the surface of the inner sealing cover and seals the vertical puncture hole of the inner sealing cover, and the inner sealing cover and the infusion multilayer co-extrusion film on the surface are fixed in the inner cavity of the outer cover; or the multi-layer co-extrusion film for transfusion is embedded in the vertical puncture hole of the inner sealing cover and seals the vertical puncture hole.
Further, the pull ring is fixedly connected to the tearing area on the upper surface of the outer cover through a pull-up column; the pulling column is a cone body with a small upper part and a large lower part, a column body with the same upper and lower sizes, an arc body with the side wall bent towards the tearing area or an inclined body with the upper end inclined towards the tearing area; the surface of the pulling column is a flat surface, a surface with vertical ribs, a surface with horizontal ribs, a surface with netlike ribs or a surface with vertical grooves; the tearing area is in a shape of a strip, a drop, an ellipse, a diamond or a triangle, and the connection part of the pull-up column and the tearing area is positioned at the narrow end of the tearing area; or the area width of the tearing area is gradually narrowed from one side far away from the pull-up column to the connecting part of the pull-up column.
Further, a sealing line part at the bottom of the outer cover and/or the inner sealing cover for sealing connection is provided with a chamfer for reducing injection burrs and burrs in the sealing welding process of the pull ring combined cover and the infusion container and reducing plastic scraps in the friction production process, wherein the chamfer radius is 0.05mm-0.40mm; and/or the outer circle side corner of the welding flange surface of the outer cover is provided with a chamfer for reducing injection molding burrs, burrs and plastic scraps produced by friction in the production process in the sealing welding process of the pull ring combined cover and the infusion container, wherein the chamfer radius is 0.05mm-0.40mm.
Further, the water seal lines produced by injection molding on the outer cover and/or inner cover are on the sides.
Further, one pull ring corresponds to one tearing area, a group of rubber plugs and inner sealing covers which correspond up and down are arranged at the lower part of the tearing area, the tearing area covers one group of lines to be punctured, the outer cover extends upwards to form a cylindrical part, the radial size of the cylindrical part is smaller than that of other parts of the outer cover, the rubber plugs and the inner sealing covers are arranged in the inner cavities of the cylindrical part, and the pull ring is arranged at the top of the cylindrical part; or one pull ring corresponds to one tearing area, two groups of rubber plugs and inner sealing covers which are arranged up and down correspondingly are arranged at the lower part of the tearing area, two groups of lines to be punctured are covered on the tearing area, the outer cover extends upwards to form a cylindrical part, the radial size of the cylindrical part is smaller than that of other parts of the outer cover, the rubber plugs and the inner sealing covers are arranged in the inner cavity of the cylindrical part, and the pull ring is arranged at the top of the cylindrical part; or the pull rings are provided with two, each pull ring corresponds to one tearing area, each tearing area is covered with a group of rubber plugs and inner covers which correspond up and down, each tearing area is covered with a group of lines to be punctured, the outer cover is upwards extended with two cylindrical parts, the radial size of each cylindrical part is smaller than that of other parts of the outer cover, the rubber plugs and the inner covers are all positioned in the inner cavities of the cylindrical parts, the pull rings are arranged at the tops of the corresponding cylindrical parts, and a connecting part for pulling and connecting the two cylindrical parts is arranged between the two cylindrical parts.
Further, the inner sealing cover adopts a plate structure or a built-in inner cover structure; the part to be punctured of the inner sealing cover is provided with an extension cylinder which extends towards the direction of the rubber plug and is used for guiding the puncture needle of the side hole to enter or be embedded in the rubber plug for mutual fixation and sealing; the inner sealing cover is welded in the inner cavity of the outer cover through thermal welding or ultrasonic welding, or is clamped in the inner cavity of the outer cover through a buckle, or is joggled in the inner cavity of the outer cover through a tenon tooth, or is connected in the inner cavity of the outer cover through interference fit.
According to another aspect of the present invention, there is also provided an infusion container including the above-described tab combination cover for an infusion container.
The invention has the following beneficial effects:
according to the pull ring combined cover for the infusion container, the upper concave groove is formed in the rubber plug, the lower concave groove is formed in the inner sealing cover, or the upper concave groove is formed in the rubber plug and the lower concave groove is formed in the inner sealing cover at the same time, so that the clearance distance for the side hole part of the side hole puncture needle to be completely separated from the rubber plug when the side hole puncture needle contacts the part to be punctured of the inner sealing cover is reserved on a line to be punctured, the side hole of the side hole steel needle is completely separated from the inside of the rubber plug when the side hole puncture needle punctures the inner sealing cover, and therefore the puncture cutting force from small to the largest and the smallest is effectively avoided, and rubber plug falling scraps generated by the side hole needle puncture are avoided, and the probability of the rubber plug falling scraps is furthest reduced;
the clearance distance or space can effectively ensure that the rubber plug is not excessively compacted, eliminate the internal stress of the rubber plug under compression, give the rubber plug relatively free expansion space during puncture, fully exert the elastic action of the rubber plug, furthest reduce the cutting resistance of the puncture needle, and further stop or furthest reduce the probability of falling scraps of the rubber plug caused by the puncture of the side hole needle;
the clearance distance or space can also play a role in isolating falling scraps generated by the rubber plug during puncture, and the falling scraps are blocked between the inner sealing cover and the rubber plug by the inner sealing cover, so that the probability that the falling scraps of the rubber plug enter the liquid medicine is stopped or reduced to the greatest extent.
In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention 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 invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is one of the schematic structural views of a pull-tab combination cover for an infusion container according to a preferred embodiment of the invention;
FIG. 2 is one of the schematic structural views of the outer cover of the preferred embodiment of the present invention;
FIG. 3 is a second schematic view of the structure of the outer cover according to the preferred embodiment of the present invention;
FIG. 4 is a third schematic structural view of the outer cap according to the preferred embodiment of the present invention;
FIG. 5 is a schematic view of the structure of the rubber stopper according to the preferred embodiment of the present invention;
FIG. 6 is a schematic view of the inner cover of the plate structure of the preferred embodiment of the present invention;
FIG. 7 is a schematic view of the inner closure of the built-in inner cap structure of the preferred embodiment of the present invention;
FIG. 8 is a schematic view of the structure of a double tab of the preferred embodiment of the present invention;
FIG. 9 is a second schematic view of a pull-tab combination cover for an infusion container according to the preferred embodiment of the invention;
FIG. 10 is a third schematic view of the structure of the pull-tab combination cover for an infusion container according to the preferred embodiment of the invention.
Legend description:
1. an outer cover; 101. a tear area; 102. a columnar member; 103. a connection part; 2. a rubber plug; 201. an upper concave groove; 2011. the bottom of the upper groove; 3. an inner cover; 301. a lower concave groove; 3011. the bottom of the lower tank; 302. a vertical puncture hole; 303. multilayer co-extrusion film for transfusion; 304. an extension cylinder; 4. a pull ring; 401. lifting and pulling device a column; 5. chamfering.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawing figures, but the invention can be practiced in a number of different ways, as defined and covered below.
FIG. 1 is one of the schematic structural views of a pull-tab combination cover for an infusion container according to a preferred embodiment of the invention; FIG. 2 is one of the schematic structural views of the outer cover of the preferred embodiment of the present invention; FIG. 3 is a second schematic view of the structure of the outer cover according to the preferred embodiment of the present invention; FIG. 4 is a third schematic structural view of the outer cap according to the preferred embodiment of the present invention; FIG. 5 is a preferred embodiment of the present invention is a structural schematic diagram of the rubber plug; FIG. 6 is a schematic view of the inner cover of the plate structure of the preferred embodiment of the present invention; FIG. 7 is a schematic view of the inner closure of the built-in inner cap structure of the preferred embodiment of the present invention; FIG. 8 is a schematic view of the structure of a double tab of the preferred embodiment of the present invention; FIG. 9 is a second schematic view of a pull-tab combination cover for an infusion container according to the preferred embodiment of the invention; FIG. 10 is a third schematic view of the structure of the pull-tab combination cover for an infusion container according to the preferred embodiment of the invention.
As shown in fig. 1, the pull ring combined cover for the infusion container of the embodiment comprises an outer cover 1 for sealing connection of the infusion container, a rubber plug 2 positioned in an inner cavity of the outer cover 1 and used for holding a side hole puncture needle to realize puncture sealing, and an inner sealing cover 3 used for sealing the rubber plug 2 in the inner cavity of the outer cover 1, wherein the outer cover 1 is provided with a pull ring 4 used for exposing the rubber plug 2 after a tearing area 101 on the surface of the outer cover 1 is pulled open, the pull ring 4, the tearing area 101, the rubber plug 2 and the inner sealing cover 3 are correspondingly distributed up and down to form a line to be punctured, a part to be punctured on the lower surface of the rubber plug 2 is provided with an upper concave groove 201, and a clearance distance a for the side hole position of the side hole puncture needle to be completely separated from the rubber plug 2 when the side hole puncture needle contacts the part to be punctured of the inner sealing cover 3 is reserved between an upper groove bottom 2011 of the upper concave groove 201 and the part to be punctured of the inner sealing cover 3. According to the pull ring combined cover for the infusion container, the upper concave groove 201 is formed in the rubber plug 2, so that the clearance distance a for completely separating the side hole part of the side hole puncture needle from the rubber plug 2 when the side hole puncture needle contacts the part to be punctured of the inner cover 3 is reserved on a line to be punctured, the side hole puncture needle has enough avoidance space, the rubber plug 2 is not easy to tighten, and the cutting probability of the side hole puncture for the rubber plug 2 is reduced; the side hole puncture needle is contacted with the part to be punctured of the inner sealing cover 3 after being separated from the rubber plug 2, and the vibration force generated by the puncture of the side hole puncture needle on the inner sealing cover 3 causes the fragments brought out of the rubber plug 2 by the side hole part of the side hole puncture needle to be separated from the side hole part in time and blocked between the inner sealing cover 3 and the rubber plug 2 by the inner sealing cover 3, thereby reducing or even avoiding the fragments brought into an infusion container in the puncturing process, reducing insoluble particles in the infusion solution and ensuring the safety of infusion. The side hole part of the side hole needle is prevented from partially or completely staying in the rubber plug when the traditional combined cover side hole needle punctures or completely punctures the puncture part of the inner cover, so that a cutting effect is formed, the rubber plug is caused to fall scraps, the needle is blocked or the liquid medicine is polluted, and the safety of transfusion and medication for people is ensured. Meanwhile, the puncture part of the inner sealing cover is modified into a multi-layer co-extrusion film for infusion by hot welding or ultrasonic welding by injection molding, so that the falling scraps of the inner cover generated when the bevel needle and the side hole needle puncture the inner cover are stopped or reduced to the maximum extent, and the safety of infusion and medication for people is ensured.
As shown in fig. 9, the pull ring combined cover for the infusion container of the embodiment comprises an outer cover 1 for sealing connection of the infusion container, a rubber plug 2 positioned in an inner cavity of the outer cover 1 and used for holding a side hole puncture needle to realize puncture sealing, and an inner sealing cover 3 used for sealing the rubber plug 2 in the inner cavity of the outer cover 1, wherein the outer cover 1 is provided with a pull ring 4 used for exposing the rubber plug 2 after a tearing area 101 on the surface of the outer cover 1 is pulled open, the pull ring 4, the tearing area 101, the rubber plug 2 and the inner sealing cover 3 are correspondingly distributed up and down to form a line to be punctured, a part to be punctured on the upper surface of the inner sealing cover 3 is provided with a lower concave groove 301, and a clearance distance a for the side hole position of the side hole puncture needle to be completely separated from the rubber plug 2 when the side hole puncture needle is in contact with the part to be punctured on the lower surface of the inner sealing cover 3 is reserved between a lower groove bottom 3011 of the lower surface of the lower concave groove 301 and the part to be punctured. According to the pull ring combined cover for the infusion container, the lower concave groove 301 is formed in the inner sealing cover 3, so that the clearance distance a for completely separating the side hole part of the side hole puncture needle from the rubber plug 2 when the side hole puncture needle contacts the part to be punctured of the inner sealing cover 3 is reserved on a line to be punctured, the side hole puncture needle has enough avoidance space, the rubber plug 2 is not easy to tighten, and the cutting probability of the side hole puncture for the rubber plug 2 is reduced; the side hole puncture needle is contacted with the part to be punctured of the inner sealing cover 3 after being separated from the rubber plug 2, and the vibration force generated by the puncture of the side hole puncture needle on the inner sealing cover 3 causes the fragments brought out of the rubber plug 2 by the side hole part of the side hole puncture needle to be separated from the side hole part in time and blocked between the inner sealing cover 3 and the rubber plug 2 by the inner sealing cover 3, thereby reducing or even avoiding the fragments brought into an infusion container in the puncturing process, reducing insoluble particles in the infusion solution and ensuring the safety of infusion.
As shown in fig. 10, the pull ring combined cover for the infusion container of the embodiment comprises an outer cover 1 for sealing connection of the infusion container, a rubber plug 2 positioned in the inner cavity of the outer cover 1 and used for puncturing and sealing a side hole puncture needle of a hoop, and an inner sealing cover 3 used for sealing the rubber plug 2 in the inner cavity of the outer cover 1, wherein the outer cover 1 is provided with a pull ring 4 used for exposing the rubber plug 2 after a tearing area 101 on the surface of the outer cover 1 is pulled open, the pull ring 4, the tearing area 101, the rubber plug 2 and the inner sealing cover 3 are correspondingly arranged up and down to form a line to be punctured, an upper concave groove 201 is arranged at the part to be punctured of the lower surface of the rubber plug 2, a lower concave groove 301 is arranged at the part to be punctured of the upper surface of the inner sealing cover 3, and a clearance distance a for completely separating the side hole part of the side hole puncture needle from the rubber plug 2 when the side hole puncture needle contacts the part to be punctured of the inner sealing cover 3 is reserved between an upper groove bottom 2011 of the upper concave groove 201 and a lower groove bottom 3011 of the lower concave groove 301. According to the pull ring combined cover for the infusion container, the upper concave groove 201 is formed in the rubber plug 2 and the lower concave groove 301 is formed in the inner sealing cover 3, so that the clearance distance a for completely separating the side hole part of the side hole puncture needle from the rubber plug 2 when the side hole puncture needle contacts the part to be punctured of the inner sealing cover 3 is reserved on a line to be punctured, the side hole puncture needle has enough avoidance space, the rubber plug 2 is not easy to tighten, and the cutting probability of the side hole puncture for the rubber plug 2 is reduced; the side hole puncture needle is contacted with the part to be punctured of the inner sealing cover 3 after being separated from the rubber plug 2, and the vibration force generated by the puncture of the side hole puncture needle on the inner sealing cover 3 causes the fragments brought out of the rubber plug 2 by the side hole part of the side hole puncture needle to be separated from the side hole part in time and blocked between the inner sealing cover 3 and the rubber plug 2 by the inner sealing cover 3, thereby reducing or even avoiding the fragments brought into an infusion container in the puncturing process, reducing insoluble particles in the infusion solution and ensuring the safety of infusion. At least one of weak area connection, indentation connection, rib connection arranged at intervals, V-shaped groove connection and U-shaped groove connection is arranged between the tearing area 101 and the outer cover 1.
Optionally, the corners of the outer cover 1 and/or the corners of the inner cover 3 are rounded. So as to facilitate the manufacture and demoulding of the outer cover 1 and/or the inner sealing cover 3, and the use is convenient, and the damage to other objects and users caused by acting force is not easy to happen.
As shown in FIGS. 1, 9 and 10, the clearance distance a is 4.5mm or more in the present embodiment. According to the structural design requirement of the combined cover, the clearance distance a is set to be greater than or equal to 4.5mm, so that the side hole puncture needle has enough avoidance space, the rubber plug 2 is not easy to tighten in the puncture process, and therefore scraps generated by cutting the rubber plug 2 by side hole puncture are reduced. The clearance distance a is smaller than or equal to two thirds of the axial dimension of the outer cover 1, so that the thickness of the tearing area 101, the rubber plug 2 and the part to be punctured of the inner sealing cover 3 is ensured, and the side hole puncture needle is ensured to be capable of puncturing into the infusion container.
As shown in fig. 1, 6, 7, 9 and 10, in this embodiment, a puncture site of the inner cover 3 is provided with a vertical puncture hole 302 for guiding a puncture needle of a side hole to penetrate. Thereby forming a vertical puncture channel, and facilitating the puncture guiding of the side hole puncture needle. The vertical puncture hole 302 is covered with a multi-layer co-extrusion film 303 for transfusion, which is used for reducing scraps in the puncture process and blocking scraps of the rubber plug 2. The film on the surface of the existing inner cover adopts an injection film formed by injection molding, the injection molding needs larger pressure and speed, so that the puncture part of the injection film of the inner cover is thin and brittle, similar to glass, when the injection film is punctured by the puncture of the side hole, the injection film is easy to burst, a large amount of insoluble particles are generated, the insoluble particles are easy to directly fall into the infusion solution, and the injection film is also easy to be brought into the infusion solution by the puncture needle of the side hole. The invention adopts a film pasting mode that the transfusion multilayer co-extrusion film 303 is attached to the inner sealing cover 3, so that the inner sealing cover 3 has high molding speed; the multilayer co-extruded film 303 for transfusion has the characteristics of strong barrier property, oxygen prevention, water resistance, moisture resistance, strong 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 the multilayer co-extruded film 303 for transfusion is pasted, has uniform film thickness, is not easy to puncture and block needle phenomenon, can block insoluble particles on the surface of a side hole puncture needle outside during puncture, and effectively prevents the probability that the side hole puncture needle carries insoluble particles into transfusion solution. By utilizing the elasticity of the multi-layer co-extrusion film 303 for transfusion, the elastic vibration force generated when the side hole puncture needle punctures the multi-layer co-extrusion film 303 for transfusion is formed, so that the 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 multi-layer co-extrusion film 303 is used for transfusion, and can be blocked outside by the multi-layer co-extrusion film 303 for transfusion, thereby reducing or even eliminating puncture scraps. The puncture part of the inner sealing cover is welded with the multi-layer co-extrusion film for transfusion through heat welding or ultrasonic wave, and the production process characteristics of the multi-layer co-extrusion film for transfusion through blow molding determine that the uniformity, the accuracy and the stability of the quality control of the production process are far higher than those of the injection molding process, and repeated adaptation and verification prove that the probability of falling scraps of the puncture part of the inner sealing cover 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.
As shown in fig. 1, 9 and 10, in the present embodiment, the infusion multilayer coextruded film 303 is provided with two to five layers. Multilayer co-extrusion film 303 for transfusion the thickness of (2) is 0.18mm-0.5mm. Cutting of the side hole puncture to the multi-layer co-extrusion film 303 for transfusion 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. The infusion multilayer co-extruded film 303 is welded to the inner cover 3 by ultrasonic welding and covers the vertical puncture hole 302 of the inner cover 3. Alternatively, high frequency ultrasonic welding is used for ultrasonic welding. The temperature of high-frequency ultrasonic welding is 150-180 ℃. The multi-layer co-extrusion film 303 for transfusion can be quickly adhered to the surface of the inner sealing cover 3, and the forming speed of the inner sealing cover 3 is high. Alternatively, the infusion multilayer coextruded film 303 is welded to the inner cover 3 by thermal welding and covers the vertical puncture 302 of the inner cover 3. The multi-layer co-extrusion film 303 for transfusion can be quickly adhered to the surface of the inner sealing cover 3, and the forming speed of the inner sealing cover 3 is high. Optionally, the infusion multilayer co-extrusion film 303 is coated on the surface of the inner sealing cover 3 and seals the vertical puncture hole 302 of the inner sealing cover 3, and the inner sealing cover 3 and the surface infusion multilayer co-extrusion film 303 are fixed in the inner cavity of the outer cover 1. Optionally, the multi-layer co-extruded film 303 for infusion is embedded in the vertical puncture 302 of the inner cover 3 and closes the vertical puncture 302. Different connection modes can be selected according to the requirements and the design requirements of the clearance distance a so as to ensure enough avoidance space of the side hole puncture needle.
As shown in fig. 1, 2, 3, 4, 8, 9 and 10, in the present embodiment, the tab 4 is fixedly connected to the tearing area 101 on the upper surface of the outer lid 1 through a pull-up post 401. The pull ring 4 forms a local acting force on the tearing area 101 by pulling the pull-up post 401, and one end of the tearing area 101 is broken and extends along the weak area by the local acting force, so that the tearing area 101 is completely separated from the outer cover 1, and the rubber plug 2 is exposed.
Optionally, the pull post 401 is a cone with a smaller top and a larger bottom. The pull-up stud 401 is firmly connected to the tear area 101, and the force applied by the tab 4 is easily transmitted to the weak portion of the tear area 101, thereby causing the tear area 101 to be broken off from the outer lid 1. Optionally, the pull-up columns 401 are columns with the same size. With a uniform structure, the force applied by the tab 4 can be uniformly applied to the tear area 101, thereby causing the tear area 101 to be broken and detached from the outer lid 1. Optionally, the pull-up post 401 is a circular arc with side walls curved into the tear region 101. The force applied by the tab 4 is transmitted along the circular arc to the end of the tear area 101 near the connection point of the pull-up post 401, thereby causing the tear area 101 to be partially broken from the outer lid 1, and as the force is continuously applied, the broken portion is extended until the entire tear area 101 is broken and separated from the outer lid 1. Optionally, the pull-up post 401 is a sloped body with an upper end sloped toward the inside of the tear area 101. The force applied by the tab 4 is transmitted along the inclined body to the end of the tear area 101 near the connection point of the pull-up post 401, thereby causing the tear area 101 to be partially broken from the outer lid 1, and as the force is continuously applied, the broken portion is extended until the entire tear area 101 is broken and released from the outer lid 1.
Optionally, the surface of the pull post 401 is flat. Simple manufacture and convenient demoulding. Alternatively, the process may be carried out in a single-stage, the surface of the pull-up column 401 is a surface with vertical ribs. The vertical increase of the wall body of the pull-up column 401 can be formed, and the pull ring 4 and the tearing area 101 can be tied, so that the acting force applied by the pull ring 4 is more easily transferred to the tearing area 101, and the connection part among the pull ring 4, the pull-up column 401 and the tearing area 101 is ensured, so that the pull-up column is not easy to break due to the action of external force in the process of manufacturing, transporting, assembling and exerting force and pulling. Alternatively, the surface of the pull post 401 is a horizontally ribbed surface. The elasticity and shearing and torsion resistance of the pull-up column 401 are improved, the pull-up force applied by the pull ring 4 is conveniently transmitted, the elasticity can assist in pulling, the breaking force is reduced, and the pull-up is easier. Optionally, the surface of the pull post 401 is a mesh-ribbed surface. Can provide diversified strengthening to pull-up post 401, not only increased pull-up post 401's elasticity, improved the connection stability between pull ring 4, pull-up post 401, the regional 101 three of tearing moreover, be difficult for because of the preparation, transportation, assemble, application of force and draw the external force effect in-process and fracture. Alternatively, the surface of the pull post 401 is a vertically grooved surface. The elasticity of the pull-up post 401 can be improved, the tearing area 101 is broken by the pulling force applied by the elastic auxiliary tab 4, the breaking force can be reduced, and the tearing is easier.
Alternatively, the tear area 101 has a shape of an elongated bar, a drop, an oval, a diamond, or a triangle. The structure with narrow ends and wide middle is adopted, and the lifting columns 401 are connected to the narrow ends, so that the breaking force can be reduced, and the tearing is easier. The shape of the different tear areas 101 can be selected as desired to facilitate the design of the profile of the combination cover, while also facilitating the tearing of the tear areas 101. Optionally, the connection of the pull-up post 401 to the tear region 101 is at the narrow end of the tear region 101. The pull-up post 401 is connected to the narrow end, so that the breaking force can be reduced, and the tearing is easier. Alternatively, the area width of the tear area 101 is gradually narrowed from the side away from the pull-up leg 401 toward the connection portion of the pull-up leg 401. The pull-up post 401 is attached to the narrow end, the breaking force can be reduced, and the tearing is easier.
As shown in fig. 1, 9 and 10, in this embodiment, a sealing line portion at the bottom of the outer cap 1 and/or the inner cap 3 for sealing connection has a chamfer 5 for reducing injection burrs and burrs in a process of welding the tab combination cap and the infusion container in a sealing manner and reducing plastic scraps in a production process by friction. The chamfer radius is 0.05mm-0.40mm. The outer cap 1 and/or the inner cap 3 can reduce mutual friction between the bottom and the assembling machine or the trimming machine during the assembling process, and reduce the probability of generating scraps, thereby reducing scraps generated during the assembling process of the combined cap and scraps on the inner surface and the outer surface of the assembled combined cap. The outer circular side corner of the welding flange surface of the outer cover 1 is provided with a chamfer 5 for reducing injection molding burrs and burrs in the sealing welding process of the pull ring combined cover and the infusion container and reducing plastic scraps in the friction production process, and the chamfer radius is 0.05mm-0.40mm. The outer cover 1 can reduce mutual friction between the outer cover and an assembling machine or a trimming machine in the assembling process, and reduce the probability of chip generation, thereby reducing the chips generated in the assembling process of the combined cover and the chips on the inner surface and the outer surface of the assembled combined cover.
In this embodiment, the water seal produced by injection molding on the outer cap 1 and/or the inner cap 3 is on the side. The molding of the outer cover 1 and/or the inner cover 3 requires integral injection molding on the film core, and the design of the water sealing line to the side surface or other non-critical parts can reduce the replacement of mold fittings, and the same mold can mold the molding of the outer cover 1 and/or the inner cover 3 with multiple sizes. The outer cover 1 and/or the inner cover 3 reduce the mutual friction between the bottom cover line and the assembling machine or the trimming machine during the assembling process, and reduce the probability of generating scraps, thereby reducing scraps generated during the assembling process of the combined cover and scraps on the inner surface and the outer surface of the assembled combined cover.
In this embodiment, as shown in fig. 4, one tab 4 corresponds to one tear area 101. The lower part of the tearing area 101 is provided with a group of rubber plugs 2 and inner sealing covers 3 which are vertically corresponding. The tear-off region 101 encloses a set of lines to be pierced. The outer cover 1 is oriented extend upwards there is a cylindrical member 102. The radial dimension of the cylindrical member 102 is smaller than the radial dimension of the other portions of the outer cap 1. Both the rubber plug 2 and the inner cover 3 are positioned in the inner cavity of the cylindrical member 102. The tab 4 is provided on top of the cylindrical member 102. Forming a single valve combined cover. Because the parts outside the puncture line belong to redundant materials, the material consumption can be reduced and the manufacturing cost of the combined cover can be reduced by designing the puncture line into the cylindrical part 102. Alternatively, the radial dimension of the cylindrical member 102 is less than or equal to two-thirds of the radial dimension of the outer cap 1.
As shown in fig. 1, 5, 6, 7, 9 and 10, one tab 4 corresponds to one tear area 101. Two groups of rubber plugs 2 and inner sealing covers 3 which are arranged up and down correspondingly are arranged at the lower part of the tearing area 101. The tear-off region 101 is capped with two sets of lines to be pierced. The outer cap 1 protrudes upward with a cylindrical member 102. The radial dimension of the cylindrical member 102 is smaller than the radial dimension of the other portions of the outer cap 1. Both the rubber plug 2 and the inner cover 3 are positioned in the inner cavity of the cylindrical member 102. The tab 4 is provided on top of the cylindrical member 102. Forming a double valve combined cover. Optionally, the number of lines to be punctured correspondingly formed from top to bottom of the rubber plug 2 and the inner sealing cover 3 is multiple. The infusion solution puncture device can be selected according to the type of the infusion solution added with the medicament, and each line to be punctured is only used once, so that repeated puncturing is avoided, and falling scraps caused by repeated puncturing are reduced. Because the parts outside the puncture line belong to redundant materials, the material consumption can be reduced and the manufacturing cost of the combined cover can be reduced by designing the puncture line into the cylindrical part 102. The radial dimension of the cylindrical member 102 is less than or equal to two-thirds of the radial dimension of the outer cap 1.
As shown in fig. 8, the tab 4 has two tabs, one tab 4 for each tear area 101. The tearing area 101 is covered with a group of rubber plugs 2 and inner covers 3 which correspond up and down. Each tear-off region 101 covers a set of lines to be pierced. The outer cap 1 protrudes upwardly with two cylindrical members 102. The radial dimension of the cylindrical member 102 is smaller than the radial dimension of the other portions of the outer cap 1. Both the rubber plug 2 and the inner cover 3 are positioned in the inner cavity of the cylindrical member 102. The tabs 4 are provided on top of the respective cylindrical members 102. A connecting portion 103 for drawknot of the two columnar members 102 is provided between the two columnar members 102. Forming a double valve combined cover. Optionally, the number of lines to be punctured correspondingly formed from top to bottom of the rubber plug 2 and the inner sealing cover 3 is multiple. The infusion solution puncture device can be selected according to the type of the infusion solution added with the medicament, and each line to be punctured is only used once, so that repeated puncturing is avoided, and falling scraps caused by repeated puncturing are reduced. Each individual piercing wire employs a set of posts 102 to reduce the amount of excess material and reduce the cost of manufacturing the composite cap. The adjacent two columnar pieces 102 are connected by adopting a connecting part 103 in a pulling way, so that the integrity and the integral strength of the combined cover are ensured, and the puncture bearing capacity is improved. Alternatively, the process may be carried out in a single-stage, the rubber plugs 2 and/or the inner covers 3 in the two cylindrical members 102 can be integrated or split. I.e. the plugs 2 in the two cylindrical members 102 are connected to each other and/or the inner covers 3 are connected to each other; or each column 102 has a separate plug 2 and/or inner cover 3 therein. The radial dimension of the cylindrical member 102 is less than or equal to two-thirds of the radial dimension of the outer cap 1.
In this embodiment, the inner cover 3 adopts a plate structure or a built-in inner cover structure. The part to be punctured of the inner sealing cover 3 is provided with an extension cylinder 304 which extends towards the direction of the rubber plug 2 and is used for guiding the side hole puncture needle to enter or be embedded in the rubber plug 2 for mutual fixation and sealing. Optionally, the inner cover 3 is welded to the inner cavity of the outer cover 1 by thermal welding or ultrasonic welding. The inner sealing cover 3 and the outer cover 1 can be quickly bonded, and the combined cover is high in assembly forming speed and good in sealing performance. Optionally, the inner cover 3 is clamped to the inner cavity of the outer cover 1 through a buckle. Can be assembled by manual or mechanical extrusion after being manufactured respectively. Optionally, the inner cover 3 is mortised to the inner cavity of the outer cover 1 by means of a tenon tooth. Can be assembled by manual or mechanical extrusion after being manufactured respectively. Optionally, the inner cover 3 is connected to the inner cavity of the outer cover 1 by an interference fit. Can be assembled by manual or mechanical extrusion after being manufactured respectively.
The infusion container of the embodiment comprises the pull ring combined cover for the infusion container. The splicing part of the combined cover is provided with a sealing line with a chamfer, so that the welding is convenient, and the welding tightness is good; the bottom of the combined cover is not provided with a sealing line produced by manufacturing, so that the obstruction of the sealing line to welding connection is eliminated, the sealing performance of welding can be improved, and meanwhile, scraps brought by the sealing line are also eliminated.
In practice, an easy-to-fold combined cover for an infusion container is provided. The rubber plug 2 is modified from a conventional round shape to a bar shape or an 8 shape. The strip rubber plug reduces the volume of the rubber plug and the cost of raw materials. The tear-off region 101 of the tab 4 is strip-shaped. The tearing part area is in a strip shape, and the pull ring is not easy to break. The shape of the tearing part of the pull ring 4 is inverted V shape. The tear-off part of the pull ring is inverted V-shaped, so that the pull ring is easier to tear and the breaking force is reduced. The inner sealing cover 3 is in a strip card structure. The card has two puncture holes, respectively corresponding to the puncture parts of the rubber plug 2. The card and the outer cover are adopted and (5) ultrasonic welding. The ultrasonic welding adopts high-frequency ultrasonic welding temperature: 150-180 ℃. Optionally, the inner cover 3 is a nested inner cover structure. The pull-up post 401 of the pull ring 4 and the position adjacent to the pull ring are added with proper reinforcing ribs. The rubber plug 2 is thickened and heightened integrally on the basis of the prior art and is concave. The rubber plug is concave, so that puncture resistance is reduced. The clearance distance between the bottom side of the concave groove of the rubber plug 2 and the puncture thin-wall part of the inner cover is more than or equal to 4.5mm. The card is covered with two to five layers of infusion multi-layer co-extrusion films for infusion, the thickness of the films is controlled to be 0.18-0.42mm, and the cutting of plastics is reduced. Reduce puncture scraps. The side hole puncture needle has an avoidance space, so that the rubber plug is not easy to tighten, and the cutting chips of the side hole puncture needle on rubber are reduced. The bottom sealing line portion of the outer cap 1 and/or the inner cap 3 is inverted R0.2. The water sealing line forming of the outer cover 1 and/or the inner sealing cover 3 requires integral injection molding on a mold core, and the water sealing line (combination line) is moved to a non-critical part, so that the replacement of the assembly cover forming mold fittings is reduced.
Original injection molding inner cover film has the defects that: the injection molding requires larger pressure and speed, the thickness of the puncture part is very thin, and the puncture part is easy to burst after being combined with glass. The toughness of the material is good, and the flow is high. The inner sealing cover film pasting mode has the advantages that: the inner cover forming speed is fast, puncture burst is difficult to appear after the film is pasted, the film thickness is even, and puncture needle blocking phenomenon is difficult to appear.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The pull ring combined cover for the infusion container comprises an outer cover (1) for sealing connection of the infusion container, a rubber plug (2) which is arranged in an inner cavity of the outer cover (1) and used for a puncture needle of a side hole of a hoop to realize puncture sealing, and an inner sealing cover (3) for sealing the rubber plug (2) in the inner cavity of the outer cover (1),
the outer cover (1) is provided with a pull ring (4) for exposing the rubber plug (2) after the tearing area (101) on the surface of the outer cover (1) is pulled open,
the pull ring (4), the tearing area (101), the rubber plug (2) and the inner sealing cover (3) are correspondingly arranged up and down to form a circuit to be punctured,
it is characterized in that the method comprises the steps of,
the part to be punctured of the lower surface of the rubber plug (2) is provided with an upper concave groove (201), the part to be punctured of the upper surface of the inner sealing cover (3) is provided with a lower concave groove (301), and a clearance distance for a side hole puncture needle to be completely separated from the rubber plug (2) is reserved between an upper groove bottom (2011) of the upper concave groove (201) and a lower groove bottom (3011) of the lower concave groove (301) when the side hole puncture needle contacts the part to be punctured of the inner sealing cover (3);
by simultaneously arranging the upper concave groove (201) on the rubber plug (2) and the lower concave groove (301) on the inner sealing cover (3), the clearance distance a for the side hole puncture needle to completely separate from the rubber plug (2) when the side hole puncture needle contacts the to-be-punctured part of the inner sealing cover (3) is reserved on the to-be-punctured line, so that the side hole puncture needle has enough avoidance space, the rubber plug (2) is not easy to tighten, and the cutting probability of the side hole puncture for the rubber plug (2) is reduced; after the side hole part of the side hole puncture needle is separated from the rubber plug (2), the side hole puncture needle is contacted with the part to be punctured of the inner sealing cover (3), and the vibration force generated by the puncture of the side hole puncture needle on the inner sealing cover (3) causes the fragments carried out of the rubber plug (2) by the side hole part of the side hole puncture needle to be separated from the side hole part in time and blocked between the inner sealing cover (3) and the rubber plug (2) by the inner sealing cover (3), so that the fragments carried into an infusion container in the puncturing process are reduced or even avoided, insoluble particles in the infusion solution are reduced, and the safety of infusion is ensured;
a vertical puncture hole (302) for guiding the puncture needle of the side hole to penetrate is arranged at the puncture part of the inner sealing cover (3),
the vertical puncture hole (302) is covered with a multi-layer co-extrusion film (303) for transfusion, which is used for reducing scraps in the puncture process and blocking scraps of the rubber plug (2);
the multi-layer co-extrusion film (303) for transfusion is provided with two to five layers;
the clearance distance is more than or equal to 4.5mm.
2. The pull-tab combination cover for an infusion container according to claim 1, wherein,
the thickness of the multilayer co-extrusion film (303) for transfusion is 0.18mm-0.5mm;
the transfusion multi-layer co-extruded film (303) is welded on the inner sealing cover (3) through thermal welding or ultrasonic welding and seals the vertical puncture hole (302) of the inner sealing cover (3); or alternatively
The infusion multilayer co-extrusion film (303) is coated on the surface of the inner sealing cover (3) and seals the vertical puncture hole (302) of the inner sealing cover (3), and the inner sealing cover (3) and the infusion multilayer co-extrusion film (303) on the surface are fixed in the inner cavity of the outer cover (1); or alternatively
The multi-layer co-extrusion film (303) for transfusion is embedded in the vertical puncture hole (302) of the inner sealing cover (3) and seals the vertical puncture hole (302).
3. The pull-tab combination cover for an infusion container according to claim 1, wherein,
the pull ring (4) is fixedly connected with a tearing area (101) on the upper surface of the outer cover (1) through a pull-up column (401);
the lifting column (401) is a cone body with a small upper part and a large lower part, a column body with the same upper and lower parts, an arc body with a side wall bent into the tearing area (101) or an inclined body with an upper end inclined towards the tearing area (101);
the surface of the lifting column (401) is a flat surface, a surface with vertical ribs, a surface with horizontal ribs, a surface with netlike ribs or a surface with vertical grooves;
the tearing area (101) is in a strip shape, a drop shape, an oval shape, a diamond shape or a triangle shape, and the connection part of the lifting column (401) and the tearing area (101) is positioned at the narrow end of the tearing area (101); or alternatively
The tearing region (101) has a region width gradually narrowed from one side away from the pull-up column (401) to the connection portion of the pull-up column (401).
4. The tab combination cover for an infusion container according to any one of claims 1 to 3, wherein,
the sealing line part of the bottom of the outer cover (1) and/or the inner sealing cover (3) for sealing connection is provided with a chamfer (5) for reducing injection burrs and burrs in the sealing welding process of the pull ring combined cover and the infusion container and producing plastic scraps in the friction production process, and the chamfer radius is 0.05mm-0.40mm; and/or
The outer cover (1) is provided with a chamfer (5) for reducing injection molding burrs and burrs in the sealing welding process of the pull ring combined cover and the infusion container and reducing plastic scraps in the friction production process at the outer circle side corner of the welding flange surface, and the chamfer radius is 0.05mm-0.40mm.
5. The tab combination cover for an infusion container according to any one of claims 1 to 3, wherein,
the sealing line produced by injection molding on the outer cover (1) and/or the inner cover (3) is located on the side.
6. The tab combination cover for an infusion container according to any one of claims 1 to 3, wherein,
the pull ring (4) corresponds to one tearing area (101), a group of rubber plugs (2) and inner sealing covers (3) which correspond up and down are arranged at the lower part of the tearing area (101), the tearing area (101) covers a group of lines to be punctured, the outer cover (1) extends upwards to form a cylindrical part (102), the radial size of the cylindrical part (102) is smaller than that of other parts of the outer cover (1), the rubber plugs (2) and the inner sealing covers (3) are both arranged in an inner cavity of the cylindrical part (102), and the pull ring (4) is arranged at the top of the cylindrical part (102); or alternatively
One pull ring (4) corresponds to one tearing area (101), two groups of rubber plugs (2) and inner sealing covers (3) which are arranged up and down correspondingly are arranged at the lower part of the tearing area (101), the tearing area (101) is covered with two groups of lines to be punctured, the outer cover (1) extends upwards to form a cylindrical part (102), the radial size of the cylindrical part (102) is smaller than that of other parts of the outer cover (1), the rubber plugs (2) and the inner sealing covers (3) are both positioned in the inner cavities of the cylindrical part (102), and the pull ring (4) is arranged at the top of the cylindrical part (102); or alternatively
The utility model provides a pull ring (4) has two, every pull ring (4) corresponds one tear regional (101), tear regional (101) closing cap have a set of upper and lower correspondence plug (2) with interior closing cap (3), every tear regional (101) closing cap a set of circuit of waiting to puncture, enclosing cover (1) upwards stretches out has cylindricality spare (102), the radial dimension of cylindricality spare (102) is less than the radial dimension at other positions of enclosing cover (1), plug (2) with interior closing cap (3) all are in the inner chamber of cylindricality spare (102), pull ring (4) are located corresponding the top of cylindricality spare (102), two be equipped with between cylindricality spare (102) be used for the drawknot two connecting portion (103) of cylindricality spare (102).
7. The tab combination cover for an infusion container according to any one of claims 1 to 3, wherein,
the inner sealing cover (3) adopts a plate structure or a built-in inner cover structure;
the part to be punctured of the inner sealing cover (3) is provided with an extension cylinder (304) which extends towards the direction of the rubber plug (2) and is used for guiding the side hole puncture needle to enter or be embedded in the rubber plug (2) for mutual fixation and sealing;
the inner sealing cover (3) is welded to the inner cavity of the outer cover (1) through thermal welding or ultrasonic welding, or
The inner sealing cover (3) is clamped in the inner cavity of the outer cover (1) through a buckle, or
The inner sealing cover (3) is joggled with the inner cavity of the outer cover (1) through a joggle, or
The inner sealing cover (3) is connected with the inner cavity of the outer cover (1) through interference fit.
8. An infusion container comprising the tab combination cover for an infusion container according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191317.3A CN106726558B (en) | 2016-12-21 | 2016-12-21 | Pull ring combined cover for infusion container and infusion container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611191317.3A CN106726558B (en) | 2016-12-21 | 2016-12-21 | Pull ring combined cover for infusion container and infusion container |
Publications (2)
| Publication Number | Publication Date |
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| CN106726558A CN106726558A (en) | 2017-05-31 |
| CN106726558B true CN106726558B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611191317.3A Active CN106726558B (en) | 2016-12-21 | 2016-12-21 | Pull ring combined cover for infusion container and infusion container |
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| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938414A (en) * | 2018-07-31 | 2018-12-07 | 苏州创扬医药科技股份有限公司 | A kind of infusion cover |
| CN108938413A (en) * | 2018-07-31 | 2018-12-07 | 苏州创扬医药科技股份有限公司 | A kind of antipollution infusion cover |
| CN115363952A (en) * | 2022-07-29 | 2022-11-22 | 湖南千山制药机械股份有限公司 | Inner cap-free type film covering cap for infusion container and infusion container |
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| Publication number | Publication date |
|---|---|
| CN106726558A (en) | 2017-05-31 |
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