CN220663456U - Polymer co-injection type combined cover for transfusion - Google Patents
Polymer co-injection type combined cover for transfusion Download PDFInfo
- Publication number
- CN220663456U CN220663456U CN202321896086.1U CN202321896086U CN220663456U CN 220663456 U CN220663456 U CN 220663456U CN 202321896086 U CN202321896086 U CN 202321896086U CN 220663456 U CN220663456 U CN 220663456U
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- Prior art keywords
- injection
- outer cover
- pulling
- polymer
- welding
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- 238000002347 injection Methods 0.000 title claims abstract description 52
- 239000007924 injection Substances 0.000 title claims abstract description 52
- 229920000642 polymer Polymers 0.000 title claims abstract description 16
- 229920001971 elastomer Polymers 0.000 claims abstract description 39
- 238000003466 welding Methods 0.000 claims abstract description 36
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 16
- 239000000806 elastomer Substances 0.000 claims description 32
- 238000001802 infusion Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000004383 yellowing Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 description 10
- -1 polypropylene Polymers 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000004743 Polypropylene Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000003814 drug Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010253 intravenous injection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Abstract
The utility model discloses a polymer co-injection type combined cover for transfusion, which comprises an outer cover and a co-injection component, wherein the outer cover is provided with a pulling-out component, the whole outer cover is of a structure with a wide lower part and a narrow upper part, a tearing area is arranged on the outer cover, the co-injection component is connected inside the outer cover through welding, the pulling-out component is connected with the tearing area, and the bottom end of the pulling-out component is arranged above the co-injection component; the pulling member is used for pulling the tearing area on the outer cover, and the co-injection member is integrally formed; the TPE thermoplastic elastomer gasket has the advantages of fewer production procedures, better sealing performance, no liquid leakage, low polluted probability, no problem of sinking of the rubber mat, no foreign matter mixing, little falling scraps after puncture, no deterioration and yellowing of the rubber mat after long-term storage, longer service life, improved product quality and reduced production cost.
Description
Technical Field
The utility model relates to the technical field of medicine packaging, in particular to a polymer co-injection type combined cover for transfusion.
Background
Infusion is to drip a large dose of liquid medicine into a human body by intravenous injection, and the liquid medicine commonly used in the market is usually stored in a sealed way by an infusion container with a cover. The current cap commonly used for sealing the transfusion container is mainly a pull ring/easy-to-fold combined cap for transfusion, which is assembled by an outer cap (PP/PE material), an inner cap (PP/PE material) and a rubber pad (rubber material). But all three are assembled together after separate injection/vulcanization molding. The cost is high, the efficiency is low, the period is long, and the cost reduction and the synergy are not facilitated in the assembly process. The production process is many, and the probability of being polluted is high, and the cushion is easy to sink, has the foreign matter to mix when the group lid, and the falling bits existence exceeds standard after the puncture, and long-term storage cushion is easy to go bad and turn yellow.
Disclosure of Invention
The utility model aims to provide a polymer co-injection type combined cover for transfusion, which solves the problems of the technology, the quality and the cost.
The utility model solves the technical problems by adopting the following technical scheme: the polymer co-injection type combined cover for transfusion comprises an outer cover and a co-injection component, wherein a pull-out component is arranged on the outer cover, the outer cover is of a structure with a wide bottom and a narrow top, a tearing area is arranged on the outer cover, the co-injection component is connected inside the outer cover through welding, the pull-out component is connected with the tearing area, and the bottom end of the pull-out component is arranged above the co-injection component; the pulling member is used for pulling the tearing area on the outer cover, and the co-injection member is integrally formed.
Optionally, the co-injection component comprises an inner weldment and an elastomer gasket, wherein the outer side of the inner weldment is fixedly connected to the upper side of the inner part of the outer cover, the inner side of the inner weldment is connected with the elastomer gasket, and the elastomer gasket is arranged under the tearing area.
Optionally, the inner weldment includes ring cylinder, weld ring and ring cylinder integrated into one piece, the weld ring sets up on the external diameter of ring cylinder side bottom.
Optionally, a welding table is arranged in the outer cover, the welding table is arranged on the inner side of the top of the outer cover, and the welding table is arranged corresponding to the welding ring.
Optionally, the inner weldment and the elastomer gasket are integrally formed through co-injection molding, and the top surface of the welding ring is fixedly connected with the bottom surface of the welding table through a hot welding technology.
Optionally, the inner weldment is made of polypropylene and polyethylene materials, and the elastic piece is a thermoplastic elastomer gasket.
Optionally, the elastic member specifically adopts a thermoplastic elastomer gasket using TEP as a raw material.
Optionally, the pulling member is one of a pull ring, a frangible handle and a pull handle.
Optionally, be equipped with injection district on the elastomer gasket, be equipped with upper portion bulge loop, lower part bulge loop on injection district both ends respectively, be equipped with the region of marking that is used for marking the puncture on the tearing area, enclosing cover bottom position department is equipped with the connecting region, the connecting region is used for connecting the transfusion system.
Optionally, the elastomer gasket is cylindric or elliptic cylindric, the shape of interior weldment is the same with the elastomer gasket, the component quantity that pulls open is one when the elastomer gasket is cylindric, the component quantity that pulls open is two when the elastomer gasket is elliptic cylindric.
The utility model has the following beneficial effects:
1. the TPE thermoplastic elastomer gasket has the advantages of fewer production procedures, better sealing performance, no leakage, low polluted probability, no problem of sinking of the rubber mat, no foreign matter mixing, little falling scraps after puncture, long service life, longer service life, improved product quality and reduced production cost, and the TPE thermoplastic elastomer gasket is easy to deteriorate and yellow after being stored for a long time;
2. according to the utility model, an inner cover is not required to be arranged below the outer cover, so that the production procedures are reduced, and the production cost is reduced.
Drawings
FIG. 1 is a schematic diagram of one embodiment of the present utility model;
FIG. 2 is a perspective view of one orientation of the co-injection member of FIG. 1;
FIG. 3 is a perspective view of the co-injection member of FIG. 1 in another orientation;
FIG. 4 is a cross-sectional view of one embodiment of the present utility model;
FIG. 5 is a schematic diagram of one embodiment of the present utility model;
FIG. 6 is a schematic illustration of the co-injection member of FIG. 5;
the labels in the figures are: 1-pulling the member apart; 2-an outer cover; 21-tear region; 22-linking region; 23-welding table; 41-inner weldment; 42-elastomer shims; 211-a label area; 411-ring column; 412-a weld ring; 422-upper collar; 423-lower collar.
Detailed Description
The technical scheme of the utility model is further described below with reference to the embodiment and the attached drawings.
Example 1
The embodiment provides a polymer co-injection type combined cover for transfusion, which comprises an outer cover 2 and a co-injection member, wherein the outer cover 2 is provided with a pulling member 1, the outer cover 2 is of a structure with a wide bottom and a narrow top, the outer cover 2 is provided with a tearing region 21, the co-injection member is connected inside the outer cover 2 by welding, the pulling member 1 is connected with the tearing region 21, and the bottom end of the pulling member 1 is arranged above the co-injection member; the pulling member 1 is used for pulling the tearing area 21 on the outer cover 2, and the co-injection member is integrally formed.
Wherein, the inner weldment 41 and the elastomer gasket 42 are integrally formed into a co-injection component, so that the production process is less, and the production cost is reduced.
In a further implementation of this embodiment, the co-injection member includes an inner weldment 41 and an elastomer gasket 42, the outer side of the inner weldment 41 is fixedly connected to the upper side of the inner portion of the outer cover 2, the inner side of the inner weldment 41 is connected to the elastomer gasket 42, and the elastomer gasket 42 is disposed right below the tearing area 21.
In a further implementation manner of this embodiment, the inner weldment 41 includes a ring column 411 and a welding ring 412, where the welding ring 412 is integrally formed with the ring column 411, and the welding ring 412 is disposed on an outer diameter of a bottom end of a side surface of the ring column 411.
In a further embodiment of the present embodiment, a welding table 23 is disposed in the outer cover 2, the welding table 23 is disposed on the top inner side of the outer cover 2, and the welding table 23 is disposed corresponding to the welding ring 412.
In a further embodiment of the present embodiment, the inner weldment 41 and the elastomer spacer 42 are integrally formed by co-injection molding, and the top surface of the welding ring 412 is fixedly connected with the bottom surface of the welding table 23 by a thermal welding technology.
In a further implementation of this embodiment, the inner weldment 41 is made of polypropylene or polyethylene, and the elastic member 42 is a thermoplastic elastomer gasket.
In a further implementation of this embodiment, the elastic member 42 is a thermoplastic elastomer gasket using TEP as a raw material.
In a further implementation manner of this embodiment, the pull-open member 1 is one of a pull ring, a frangible handle and a pull-open handle.
Wherein, when the pull-open member 1 adopts a pull ring, when the edge and the middle part of the tearing area are separated, the edge of the tearing area 21 remains on the upper side of the outer cover 2; when the pull-open member 1 adopts the easy-to-fold handle, the elastomer gasket 42 below the tearing area 21 is provided with an injection area allowing the puncture needle to pass through, the tearing area 21 is provided with the easy-to-fold handle, the easy-to-fold handle and the tearing area 21 are connected into a whole, and the easy-to-fold handle and the tearing area 21 can be separated from each other by means of external force so as to expose the injection area; when the pull-open member 1 adopts a pull-off handle, the elastic pad 42 below the tearing area 21 is provided with an injection area allowing the puncture needle to pass through, the tearing area 21 is provided with a pull-off handle, the pull-off handle and the tearing area 21 are connected into a whole, and the pull-off handle and the tearing area 21 can be separated from each other by means of external force, so that the injection area is exposed.
In a further implementation manner of this embodiment, the elastomer gasket 42 is provided with an injection area, two ends of the injection area are respectively provided with an upper convex ring 422 and a lower convex ring 423, and the tearing area 21 is provided with a marking area 211 for marking puncture.
In a further implementation manner of this embodiment, a connection area 22 is provided at the bottom end position of the outer cover 2, and the connection area 22 is used for connecting with an infusion apparatus.
In a further embodiment of the present embodiment, the elastomer spacer 42 is cylindrical or elliptical, the shape of the inner weldment 41 is the same as the elastomer spacer 42, the number of the pull-apart members 1 is one when the elastomer spacer 42 is cylindrical, and the number of the pull-apart members 1 is two when the elastomer spacer 42 is elliptical.
As shown in fig. 1-4, the elastomer spacer 42 and the inner weldment 41 are both cylindrical in shape, wherein the number of pull-off members 1 is one and pull rings are used as the pull-off members 1;
as shown in fig. 5-6, the elastomer spacer 42 and the inner weldment 41 are both in the shape of an oval cylinder, wherein the number of the pull-open members 1 is two, and an easy wrench handle is adopted as the pull-open members 1;
the shape of the elastomer spacer 42 and the inner welding member 41 is a cylindrical shape or an elliptical cylindrical shape, and the shape of the elastomer spacer 42 and the inner welding member 41 is not limited to a cylindrical shape or an elliptical cylindrical shape, and the shape of the co-injection member composed of the inner welding member 41 and the elastomer spacer 42 may be changed correspondingly as required as long as the co-injection member can be welded and connected in the outer cover 2 and the region for needling is provided below the pull-apart member.
Wherein: the inner weldment 41 made of polypropylene and polyethylene materials and the elastomer gasket 42 made of TPE thermoplastic elastomer gaskets are subjected to coinjection molding, and after being integrally molded into a coinjection member, the coinjection member is welded on the outer cover 2 by using a hot welding technology; therefore, the production procedures are few, the sealing performance of the TPE thermoplastic elastomer gasket is better, no liquid leakage exists, the polluted probability is low, the problem of sinking of the rubber mat is solved, the foreign matters are not mixed, the falling scraps are extremely few after puncture, the rubber mat is not deteriorated and yellow after long-term storage, the service life is longer, the product quality is greatly improved, and the production cost is reduced.
The sequence of the above embodiments is only for convenience of description, and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. The polymer co-injection type combined cover for transfusion is characterized by comprising an outer cover and a co-injection component, wherein the outer cover is provided with a pulling-out component, the whole outer cover is of a structure with a wide lower part and a narrow upper part, a tearing area is arranged on the outer cover, the co-injection component is connected inside the outer cover through welding, the pulling-out component is connected with the tearing area, and the bottom end of the pulling-out component is arranged above the co-injection component; the pulling member is used for pulling the tearing area on the outer cover, and the co-injection member is integrally formed.
2. The infusion polymer co-injection type combined cover according to claim 1, wherein the co-injection member comprises an inner weldment and an elastomer gasket, the outer side of the inner weldment is fixedly connected to the inner upper side of the outer cover, the inner side of the inner weldment is connected with the elastomer gasket, and the elastomer gasket is arranged right below the tearing area.
3. The polymer co-injection type combined cover for transfusion according to claim 2, wherein the inner weldment comprises a ring cylinder and a welding ring, the welding ring and the ring cylinder are integrally formed, and the welding ring is arranged on the outer diameter of the bottom end of the side face of the ring cylinder.
4. The polymer co-injection type combined cover for transfusion according to claim 3, wherein a welding table is arranged in the outer cover, the welding table is arranged on the inner side of the top of the outer cover, and the welding table is arranged corresponding to the welding ring.
5. The polymer co-injection type combined cover for transfusion according to claim 4, wherein the inner weldment and the elastomer gasket are integrally formed through co-injection, and the top surface of the welding ring is fixedly connected with the bottom surface of the welding table through a thermal welding technology.
6. The combination infusion polymer cap of claim 5, wherein the elastomeric member is a thermoplastic elastomer gasket.
7. The polymer co-injection type combined cover for transfusion according to claim 6, wherein the elastic member is a thermoplastic elastomer gasket using TEP as a raw material.
8. The combination cover of claim 1, wherein the pull-open member is one of a pull ring, a frangible handle, and a pull-tab handle.
9. The polymer co-injection type combined cover for infusion, according to claim 2, wherein the elastomer gasket is provided with an injection area, both ends of the injection area are respectively provided with an upper convex ring and a lower convex ring, the tearing area is provided with a marking area for marking puncture, and the bottom end position of the outer cover is provided with a connecting area for connecting an infusion apparatus.
10. The polymer co-injection type combined cover for infusion according to claim 9, wherein the elastic body pad is cylindrical or elliptic cylindrical, the shape of the inner weldment is the same as that of the elastic body pad, the number of the pulling members is one when the elastic body pad is cylindrical, and the number of the pulling members is two when the elastic body pad is elliptic cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321896086.1U CN220663456U (en) | 2023-07-19 | 2023-07-19 | Polymer co-injection type combined cover for transfusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321896086.1U CN220663456U (en) | 2023-07-19 | 2023-07-19 | Polymer co-injection type combined cover for transfusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220663456U true CN220663456U (en) | 2024-03-26 |
Family
ID=90329266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321896086.1U Active CN220663456U (en) | 2023-07-19 | 2023-07-19 | Polymer co-injection type combined cover for transfusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220663456U (en) |
-
2023
- 2023-07-19 CN CN202321896086.1U patent/CN220663456U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |