CN211610763U - Combined sealing cover for soft infusion bag - Google Patents
Combined sealing cover for soft infusion bag Download PDFInfo
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- CN211610763U CN211610763U CN201921536494.XU CN201921536494U CN211610763U CN 211610763 U CN211610763 U CN 211610763U CN 201921536494 U CN201921536494 U CN 201921536494U CN 211610763 U CN211610763 U CN 211610763U
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Abstract
The utility model provides a sealed lid of combination for infusion soft bag, a serial communication port, including first lid and second lid, first lid locate second lid upside and with second lid fixed connection, first lid in be equipped with thermoplastic elastomer, the upper portion of second lid is equipped with the liquid proof membrane, the thermoplastic elastomer downside is located to the liquid proof membrane. The utility model discloses the stranded gas problem that meets when can avoiding moulding plastics thermoplastic elastomer improves the product percent of pass.
Description
Technical Field
The utility model relates to a combined sealing cover for a soft infusion bag, which is used for medicine packaging.
Background
In the prior art, a soft infusion bag is used for packaging infusion medicines. The top of the soft infusion bag needs to be sealed by a sealing cover which is provided with a mouth-piece which can be connected with the soft infusion bag. The existing sealing cover mainly has two types, one is that the liquid-proof film and the cover body are integrally formed, as shown in figure 1, the structure of the sealing cover integrally formed with the liquid-proof film is schematically shown, the sealing cover comprises a PP cover body 3.1, the PP cover body 3.1 comprises a port for connecting with a soft infusion bag and a pipeline which is formed on the upper side of the port and communicated with the port, the pipeline is of a hollow structure, the inner cavity of the plastic cap is divided into an upper cavity and a lower cavity by a liquid isolating film 7, a thermoplastic elastomer 6 is arranged in the upper cavity, the thermoplastic elastomer 6 is arranged on the upper side of the liquid isolating film 7, an isolation medium 13 such as silicone oil is arranged between the liquid isolating film 7 and the thermoplastic elastomer 6, the isolation medium 13 is arranged in the middle of the liquid isolating film 7, the thermoplastic elastomer 6 and the liquid isolating film 7 are not adhered, the rebound performance of the thermoplastic elastomer 6 is improved, and the PP cap body 3.1, the liquid isolating film 7 and the thermoplastic elastomer 6 are integrally formed by injection molding through a two-color injection molding technology. The thermoplastic elastomer 6 is provided with a needle punched hole 2, and the upper side of the PP cover body 3.1 is provided with a pad pasting 5. The disadvantages of this structure are: 1. due to the existence of the liquid isolating membrane 7, the trapping phenomenon exists when the thermoplastic elastomer 6 is injected into the PP cover body 3.1, and the injection molding quality is influenced; 2. due to the hot runner system, the thermoplastic elastomer 6 cannot flow according to the design concept in the injection flow process, so that the thermoplastic elastomer 6 irregularly flows in the actual injection process, the isolation medium 13 is flushed to other parts, the thermoplastic elastomer 6 is bonded with the liquid isolating membrane 7, and the resilience of the thermoplastic elastomer 6 is reduced. 3. After a puncture needle with the outer diameter of 0.8mm (or 1.2mm or 1.6mm) punctures the thermoplastic elastomer 6 and the liquid isolating membrane 7 and injects the liquid medicine and is pulled out of the integrated cover, the PP cover body 3.1 cannot be peeled off from the thermoplastic elastomer 6 due to the thin outer diameter of the puncture needle, so that the liquid isolating membrane 7 at the puncture part of the puncture needle can hold the thermoplastic elastomer 6, the thickness of the puncture hole part of the thermoplastic elastomer 6 is reduced, the rebound effect of the thermoplastic elastomer 6 is reduced, and the liquid leakage phenomenon exists. The other is that the liquid isolating film is formed by integrally injection molding the PP cover body and the thermoplastic elastomer by adopting a double-color molding technology and then welded in the PP cover body, as shown in figure 2, the structure of the liquid isolating film is a schematic view of a single-tube sealing cover which is separately welded, the sealing cover comprises a PP cover body 3.1, the PP cover body 3.1 comprises a connector for being connected with a transfusion soft bag and a pipeline which is formed on the upper side of the connector and communicated with the connector, the pipeline is of a hollow structure, the inner cavity of the pipeline is divided into an upper cavity and a lower cavity by a liquid isolating film 7, the thermoplastic elastomer 6 is arranged in the upper cavity, the thermoplastic elastomer 6 is provided with a needle hole 2 and a clearance 9, the upper side of the PP cover body 3.1 is provided with a sticking film 5, the PP cover body 3.1 and the thermoplastic elastomer 6 are integrally molded by adopting a double-color injection molding technology, and after the PP cover body 3.1 and the thermoplastic elastomer 6 are molded, and the structure is welded with the inner wall of the pipeline in a hot melting way, and the structure has the following problems: in the production process, because the pipeline is too long, the liquid-proof film 7 is often welded incompletely in the welding process, and the product percent of pass is not high. As shown in fig. 3, the structure of the sealing cover with two separately welded tubes of the liquid-proof membrane is schematically shown, the sealing cover structure is similar to the structure of the single separately welded tube sealing cover with the liquid-proof membrane shown in fig. 2, except that the PP cover body 3.1 comprises a port for connecting with a soft infusion bag and two pipelines formed at the upper side of the port and communicated with the port, and the problems existing in the single separately welded tube sealing cover with the liquid-proof membrane shown in fig. 2 also exist in the sealing cover product.
Disclosure of Invention
The utility model aims at providing an easy production's sealed lid of infusion soft bag with combination, the stranded gas problem that meets when it can avoid moulding plastics thermoplastic elastomer, and can improve the product percent of pass.
In order to achieve the aim, the utility model provides a sealed lid of combination for infusion soft bag, a serial communication port, including first lid and second lid, first lid locate second lid upside and with second lid fixed connection, first lid in be equipped with thermoplastic elastomer, the upper portion of second lid is equipped with the liquid proof membrane, the thermoplastic elastomer downside is located to the liquid proof membrane.
Preferably, the thermoplastic elastomer is fixedly connected with the inner wall of the first cover body in a sealing way.
Preferably, the lower end of the first cover body is fixedly connected with the upper end of the second cover body in a sealing manner.
Preferably, the liquid-proof membrane is fixedly connected with the second cover body in a sealing way.
Preferably, the first cover body and the second cover body are respectively formed by injection molding.
Preferably, the first cover body and the thermoplastic elastomer are integrally injection-molded by adopting a two-color injection molding technology.
Preferably, the liquid-proof membrane and the second cover body are integrally formed or fixedly connected in a welding mode.
Preferably, the second cover body comprises a port for connecting with a soft infusion bag and at least one hollow pipeline formed on the upper side of the port and communicated with the port, and the first cover body is arranged on the upper side of the pipeline and fixedly connected with the top end of the pipeline in a sealing manner.
Preferably, the cross section of the inner wall of the pipeline is circular or elliptical.
Preferably, the inner wall of the interface is tapered.
Preferably, the upper side of the first cover body is provided with a film, a pull ring type gland, an easy-folding gland or an easy-pulling gland.
More preferably, the pull ring type gland comprises a gland body arranged on the upper side of the first cover body, the edge and the middle part of the gland body can be separated by means of external force, the middle part of the gland body is connected with the pull ring, and when the edge and the middle part of the gland body are separated, the edge of the gland body is kept on the upper side of the first cover body; the easy-to-break type gland comprises a gland body arranged on the upper side of the first cover body, an infusion hole allowing a puncture needle to penetrate through is formed in the gland body, an easy-to-break handle is arranged in the infusion hole of the gland body and connected with the gland body into a whole, and the easy-to-break handle and the gland body can be separated from each other by means of external force so as to expose the infusion hole; the easy-pulling type gland comprises a gland body arranged on the upper side of the first cover body, an infusion hole allowing a puncture needle to penetrate through is formed in the gland body, an easy-pulling handle is arranged in the infusion hole of the gland body and connected with the gland body into a whole, and the easy-pulling handle and the gland body can be separated from each other by means of external force so as to expose the infusion hole.
More preferably, the easy-to-break handle is arranged along a direction perpendicular to the upper end surface of the gland body, and the easy-to-pull handle is arranged along a direction parallel to the upper end surface of the gland body.
Preferably, the thermoplastic elastomer is provided with at least one recess (also called void-avoiding) located on the upper and/or lower side of the thermoplastic elastomer.
More preferably, the side wall of the groove is a straight surface (i.e., a surface extending in a vertical direction) or a tapered surface. The shape of the groove can be changed according to different structures and different hole numbers of products.
Preferably, the first cover body is provided with at least one groove (also called a vacancy avoidance position).
Preferably, the thermoplastic elastomer is provided with one or more needle punched holes on the upper side and/or the lower side.
More preferably, the cross section of the needle-punched hole is circular, elliptical or elliptical-like.
More preferably, the longitudinal section of the needle-punched hole is square, trapezoid or arch.
Preferably, the outer wall of the first cover body is provided with a positioning block.
Preferably, the liquid-proof membrane is a hard sheet or a soft membrane.
Preferably, the liquid-proof membrane is separated from the thermoplastic elastomer.
Preferably, the middle part of the upper surface of the thermoplastic elastomer is sprayed with medical-grade silicone oil.
Preferably, the upper side of the thermoplastic elastomer is provided with a water retaining rib groove.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a first lid and second lid, two lids are prepared alone, when moulding plastics thermoplastic elastomer, there is not liquid-proof membrane in the first lid to block gaseous emission, just can not produce the problem of trapping gas yet, simultaneously, when preparing the second lid, can make liquid-proof membrane and second lid integrated into one piece, or weld with the second lid at the pipeline top of second lid, avoid the problem that the qualification rate is not high that prior art liquid-proof membrane gets into the pipeline through slender pipeline bottom and welds with the pipeline again, solved liquid-proof membrane and often appeared welding imperfectly, the skip welding etc. in welding process, the difficult problem of product qualification rate, weld liquid-proof membrane easy operation at the pipeline top of second lid that is not high, directly perceived, convenient, reduced inspection intensity of labour, improved output and qualification rate simultaneously;
2. the first cover body and the second cover body are respectively formed by injection molding and then are formed by heating and welding, so that the product quality can be better improved, and the yield can be improved;
3. the arrangement of the vacancy avoidance in the thermoplastic elastomer of the utility model is to increase the sectional area of the thermoplastic elastomer, accelerate the cooling and shaping of the thermoplastic elastomer, shorten the production period of the product and improve the product yield; meanwhile, the use amount of the thermoplastic elastomer is saved, and the production cost is reduced;
4. the purpose of the middle acupuncture hole of the utility model is convenient for puncture, and after the acupuncture hole is arranged, a user can know the puncture position at a glance;
5. the utility model discloses the effect that sets up the locating piece on the outer wall of first lid plays the positioning action when hot melt welding pad pasting or various glands.
6. The utility model discloses the effect of mesophragma liquid membrane is in order to keep apart liquid and thermoplastic elastomer's contact, and the safe long-term storage of liquid medicine in the better assurance infusion soft bag.
7. The utility model discloses in the effect of keeping away the vacancy in the lid setting is in order to cool off the design with higher speed after moulding plastics. When the side wall of the cover body is thick, shrinkage deformation is easy to generate in the cooling process, appearance defects are caused, and the shrinkage deformation can be effectively avoided by arranging the vacancy avoiding position in the cover body, so that the problems are solved. The cover body is provided with the clearance position, so that the weight of the PP raw material can be reduced, and the cost is reduced;
8. the inner wall of the interface of the utility model is conical, so that the liquid in the transfusion soft bag can flow more cleanly in the transfusion process;
9. the utility model discloses mesophragma liquid membrane is used for keeping apart liquid and thermoplastic elastomer, and mesophragma liquid membrane and thermoplastic elastomer are the separation state, and when thermoplastic elastomer was extracted to the pjncture needle in the use, thermoplastic elastomer did not receive the containment of mesophragma liquid membrane, and full play thermoplastic elastomer's resilience performance prevents liquid outflow/oozes.
Drawings
FIG. 1 is a schematic view of a sealing cover integrally formed with a liquid-barrier film;
FIG. 2 is a schematic structural view of a single-tube sealing cover welded separately with a liquid-barrier film;
FIG. 3 is a schematic structural view of a double-tube sealing cover welded separately by a liquid-barrier film;
FIG. 4 is a schematic view showing the structure of a first cover of the combined sealing cover for the infusion soft bag in embodiment 1;
FIG. 5 is a schematic view showing the structure of a first cover of a composite sealing cover for an infusion soft bag in accordance with embodiment 6;
FIG. 6 is a perspective view of a first cover of the composite sealing cover for the infusion soft bag in embodiment 1;
FIG. 7 is a schematic view showing a second cover structure of the combined sealing cover for a flexible infusion bag in accordance with embodiment 1;
FIG. 8 is a schematic view showing a second cover structure of the combined sealing cover for a flexible infusion bag in accordance with embodiment 2;
FIG. 9 is an exploded view of the composite sealing cover for the infusion soft bag in accordance with example 2;
FIG. 10 is a schematic structural view of a combined sealing cover for an infusion soft bag in accordance with embodiment 3;
FIG. 11 is a schematic structural view of a combined sealing cover for an infusion soft bag in accordance with embodiment 4;
FIG. 12 is a schematic structural view of a combined sealing cover for an infusion soft bag in accordance with embodiment 5;
FIG. 13 is a schematic structural view of a combined sealing cover for an infusion soft bag in accordance with embodiment 1;
FIG. 14 is a schematic structural view of a combined sealing cover for an infusion soft bag in accordance with embodiment 8;
FIG. 15 is a schematic structural view of a combined sealing cover for an infusion soft bag in accordance with embodiment 9;
FIG. 16 is a schematic structural view of a combined sealing cover for an infusion soft bag in accordance with embodiment 10;
FIG. 17 is a schematic structural view of a combined sealing cap for an infusion soft bag in accordance with embodiment 7;
FIG. 18 is a schematic structural view of a second cover body of a combined sealing cover for an infusion soft bag in accordance with embodiment 7;
FIG. 19 is a schematic view showing a second lid member of the composite sealing cap for a flexible infusion bag in accordance with embodiment 11;
FIG. 20 is an exploded perspective view of the composite sealing cover for a flexible infusion bag in accordance with example 11.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
Example 1
As shown in fig. 13, the combined sealing cover for the soft infusion bag of the present embodiment includes a first cover 14 and a second cover 15 which are respectively injection molded, the first cover 14 is disposed on the upper side of the second cover 15, and the lower end of the first cover 14 is fixedly connected to the upper end of the second cover 15 in a sealing manner. The upper side of the first cover 14 is provided with a film 5.
As shown in fig. 4, the first cover body 14 and the second cover body 15 are both made of PP (polypropylene), the thermoplastic elastomer 6 is disposed in the first cover body 14, the first cover body 14 and the thermoplastic elastomer 6 are integrally injection-molded by a two-color injection molding technique, and the thermoplastic elastomer 6 is fixedly connected to the inner wall of the first cover body 14 in a sealing manner.
The thermoplastic elastomer 6 is provided with at least one first groove 9 (also called a void-avoiding position), the first groove 9 is positioned at the lower side of the thermoplastic elastomer, and the side wall of the first groove 9 is a straight surface (i.e. a surface extending along the vertical direction). The first groove 9 can increase the sectional area of the thermoplastic elastomer 6, accelerate the cooling and shaping of the thermoplastic elastomer 6, shorten the production period of products and improve the yield of the products; meanwhile, the consumption of the thermoplastic elastomer 6 can be saved, and the production cost is reduced. The thermoplastic elastomer 6 is provided with a needle punched hole 2 on the upper side. The TPE at the position of the needle punching hole 2 is thinner, so that the needle punching hole is convenient to puncture, the cross section of the needle punching hole 2 is circular, and the longitudinal section of the needle punching hole is arched. Thermoplastic elastomer 6's upside circumference be equipped with manger plate muscle groove 1 for hold injection mold's manger plate muscle, manger plate muscle groove 1 is annular recess, manger plate muscle is used for alleviating injection molding in-process thermoplastic elastomer 6's stranded gas, resilience problem.
The first cover 14 is provided with a second groove 10 (also called a space avoidance position). The second groove 10 is used for accelerating cooling and shaping after injection molding, and the shrinkage deformation of the first cover body 14 is avoided in the cooling process, and meanwhile, the weight of the PP raw material is reduced, and the cost is reduced. As shown in fig. 6, a positioning block 12 is disposed on an outer wall of the first cover 14. The film plays a role in positioning when the film is welded in a hot melting way.
As shown in fig. 7, the second cover body 15 comprises a port 11 for connecting with a soft infusion bag and a hollow pipeline 16 formed on the upper side of the port 11 and communicated with the port 11, and the first cover body 14 is arranged on the upper side of the pipeline 16 and is fixedly connected with the top end of the pipeline 16 in a sealing way. The inner wall of the conduit 16 is circular in cross-section and the inner wall of the mouthpiece 11 is tapered. The liquid-proof film 7 is arranged on the upper part of the second cover body 15, the liquid-proof film 7 and the second cover body 15 are integrally formed, and the liquid-proof film 7 is arranged on the lower side of the thermoplastic elastomer 6. The liquid-proof film 7 is a PP hard sheet.
The middle part of the upper surface of the thermoplastic elastomer 6 is a working surface (C surface) which is sprayed with medical silicone oil, so that the phenomenon of unattractive appearance of the product caused by drying is improved, particles generated by mutual rubbing during the puncture of the resin needle are avoided, the puncture force of the resin needle is reduced, and the number of scraps produced by the puncture of the resin needle is reduced.
The preparation method of the combined sealing cover for the soft infusion bag comprises the following steps:
step 1: a first cover body 14 is formed on a cover body injection area of a multi-material double-color injection molding machine in a one-step injection molding mode through a multi-material double-color injection mold, the mold is opened through the multi-material double-color injection molding machine, a machine table is rotated, the mold is closed again, a thermoplastic elastomer 6 is injected into the first cover body 14 in a thermoplastic elastomer injection area of the multi-material double-color injection molding machine, the thermoplastic elastomer 6 and the first cover body 14 are meshed into a whole, and the thermoplastic elastomer 6 is fixedly connected with the inner wall of the first cover body 14 in a sealing mode; since there is no liquid barrier film in the first cover 14, there is no trapping of air in the injection molded thermoplastic elastomer 6.
Step 2: a single-color injection mold is used for injection molding the second cover body 15 and the liquid isolating film 7 on a single-color injection molding machine at one time, and the second cover body 15 and the liquid isolating film 7 are integrally molded;
and step 3: welding (hot melt welding or ultrasonic welding) the surface A and the surface B at the lower end of the first cover body 14 with the surface A1 and the surface B1 at the upper end of the second cover body 15 respectively in a film sticking machine, so that the first cover body 14 and the second cover body 15 are fixedly connected in a sealing manner, and welding qualification detection is carried out;
and 4, step 4: spraying medical silicone oil on the surface C of the thermoplastic elastomer 6 by using a film sticking machine, carrying out hot-melt welding on the film sticking 5 on the thermoplastic elastomer 6 by using the film sticking machine, positioning by using a positioning block 12 in the hot-melt welding process, and carrying out qualification detection to obtain the combined sealing cover for the infusion soft bag.
The use method of the combined sealing cover for the soft infusion bag comprises the following steps: the interface 11 of the second cover body 15 and the soft infusion bag filled with liquid medicine are subjected to hot melting welding, and the liquid isolating film 7 can isolate the liquid from contacting with the thermoplastic elastomer 6, so that the safe and long-term storage of the liquid is better ensured. When medicine or transfusion is needed, the sticking film 5 is torn, and a puncture needle (the puncture needle can be a resin needle or an injection steel needle) is used for puncturing the thermoplastic elastomer 6 and the liquid separation film 7 through the puncture hole 2 for medicine or transfusion. Since the liquid-barrier film 7 and the thermoplastic elastomer 6 are in a separated state, when the puncture needle is pulled out of the thermoplastic elastomer 6, the thermoplastic elastomer 6 is not restrained by the liquid-barrier film 7, the resilience of the thermoplastic elastomer 6 is fully exerted, and the liquid is prevented from flowing out/seeping out.
Example 2
As shown in fig. 9, the combined sealing cover for the infusion soft bag of the present embodiment is similar to embodiment 1, except that, as shown in fig. 8, the liquid-proof membrane 7 is fixedly connected with the inner wall of the second cover body 15 in a sealing manner by welding, and the welding may be hot-melt welding or ultrasonic welding. The liquid-proof film 7 is a PP soft film.
The preparation method of the combined sealing cover for the soft infusion bag comprises the following steps:
step 1: a first cover body 14 is formed on a cover body injection area of a multi-material double-color injection molding machine in a one-step injection molding mode through a multi-material double-color injection mold, the mold is opened through the multi-material double-color injection molding machine, a machine table is rotated, the mold is closed again, a thermoplastic elastomer 6 is injected into the first cover body 14 in a thermoplastic elastomer injection area of the multi-material double-color injection molding machine, the thermoplastic elastomer 6 and the first cover body 14 are meshed into a whole, and the thermoplastic elastomer 6 is fixedly connected with the inner wall of the first cover body 14 in a sealing mode; since there is no liquid barrier film in the first cover 14, there is no trapping of air in the injection molded thermoplastic elastomer 6.
Step 2: a monochromatic injection mold is used for injection molding the second cover body 15 on a monochromatic injection molding machine in one step;
and step 3: feeding the liquid-barrier film 7 from the top of the second cover body 15 by using a film sticking machine and welding (hot melt welding or ultrasonic welding) the liquid-barrier film 7 with the upper inner wall of the second cover body 15; the liquid-proof film 7 is fed into and welded from the top of the second cover body 15, so that the welding operation is greatly facilitated, and the product percent of pass is improved.
And 4, step 4: welding the surface A and the surface B at the lower end of the first cover body 14 with the surface A1 and the surface B1 at the upper end of the second cover body 15 respectively to ensure that the first cover body 14 and the second cover body 15 are fixedly connected in a sealing way, and carrying out welding qualification detection;
and 5: spraying medical silicone oil on the surface C of the thermoplastic elastomer 6 by using a film sticking machine, then carrying out hot-melt welding on the film sticking 5 on the thermoplastic elastomer 6, positioning by using a positioning block 12 in the hot-melt welding process, and carrying out qualification detection to obtain the combined sealing cover for the soft infusion bag.
The use method of the combined sealing cover for the soft infusion bag comprises the following steps: the interface 11 of the second cover body 15 and the soft infusion bag filled with liquid medicine are subjected to hot melting welding, and the liquid isolating film 7 can isolate the liquid from contacting with the thermoplastic elastomer 6, so that the safe and long-term storage of the liquid is better ensured. When medicine or transfusion is needed, the sticking film 5 is torn, and a puncture needle (the puncture needle can be a resin needle or an injection steel needle) is used for puncturing the thermoplastic elastomer 6 and the liquid separation film 7 through the puncture hole 2 for medicine or transfusion. Since the liquid-barrier film 7 and the thermoplastic elastomer 6 are in a separated state, when the puncture needle is pulled out of the thermoplastic elastomer 6, the thermoplastic elastomer 6 is not restrained by the liquid-barrier film 7, the resilience of the thermoplastic elastomer 6 is fully exerted, and the liquid is prevented from flowing out/seeping out.
Example 3
As shown in fig. 10, the combined sealing cover for the infusion soft bag of the present embodiment is similar to embodiment 1 except that the film 5 is replaced with an easy-folding type cover. Easy book formula gland including arranging gland body 5.2 of first lid upside in, be equipped with the infusion hole that allows the pjncture needle to pass on gland body 5.2, be equipped with easy handle 5.3 of rolling over in the infusion hole of gland body, easy handle 5.3 of rolling over is even as an organic whole with gland body 5.2, easy handle 5.3 of rolling over can separate mutually with the help of external force with gland body 5.2, and then expose the infusion hole. The easy-to-break handle 5.3 is arranged along the direction vertical to the upper end surface of the gland body 5.2.
The preparation method of the combined sealing cover for the transfusion soft bag is similar to that of the embodiment 1, and the difference is that: in step 4, "the film 5 is thermally welded on the thermoplastic elastomer 6 by the film sticking machine" is replaced with "the easy-to-fold cover is thermally welded on the thermoplastic elastomer 6 by the cover pressing machine".
When the infusion bottle is used, the interface 11 of the second cover body 15 and an infusion soft bag filled with liquid medicine are subjected to hot melting welding, and the liquid isolating film 7 can isolate the liquid from contacting with the thermoplastic elastomer 6, so that the safe and long-term storage of the liquid is better ensured. When medicine adding or transfusion is needed, the easy-to-break handle 5.3 is broken, so that the easy-to-break handle 5.3 is separated from the gland body 5.2, the transfusion hole is exposed, and a puncture needle (the puncture needle can be a resin needle or an injection steel needle) is used for puncturing the thermoplastic elastomer 6 and the liquid separation membrane 7 through the puncture hole 2 for medicine adding or transfusion. Since the liquid-barrier film 7 and the thermoplastic elastomer 6 are in a separated state, when the puncture needle is pulled out of the thermoplastic elastomer 6, the thermoplastic elastomer 6 is not restrained by the liquid-barrier film 7, the resilience of the thermoplastic elastomer 6 is fully exerted, and the liquid is prevented from flowing out/seeping out.
Example 4
As shown in fig. 11, the combined sealing cover for the infusion soft bag of the present embodiment is similar to embodiment 1 except that the film 5 is replaced with a press cover of an easily pulling type. The easy-pulling type gland comprises a gland body 5.2 arranged on the upper side of the first cover body, an infusion hole allowing a puncture needle to penetrate through is formed in the gland body 5.2, an easy-pulling handle 5.4 is arranged in the infusion hole of the gland body, the easy-pulling handle 5.4 is connected with the gland body 5.2 into a whole, and the easy-pulling handle 5.4 and the gland body 5.2 can be separated from each other by means of external force to further expose the infusion hole. The easy-to-pull handle is arranged along the direction parallel to the upper end surface of the gland body 5.2.
The preparation method of the combined sealing cover for the transfusion soft bag is similar to that of the embodiment 1, and the difference is that: in step 4, "the film 5 is thermally welded on the thermoplastic elastomer 6 by the film sticking machine" is replaced with "the easy-to-pull type gland is thermally welded on the thermoplastic elastomer 6 by the capping machine".
When the infusion bottle is used, the interface 11 of the second cover body 15 and an infusion soft bag filled with liquid medicine are subjected to hot melting welding, and the liquid isolating film 7 can isolate the liquid from contacting with the thermoplastic elastomer 6, so that the safe and long-term storage of the liquid is better ensured. When medicine is needed to be added or transfusion is needed, the easy-pulling handle 5.4 is separated from the gland body 5.2, the transfusion hole is exposed, and a puncture needle (the puncture needle can be a resin needle or an injection steel needle) is used for puncturing the thermoplastic elastomer 6 and the liquid separation membrane 7 through the puncture hole 2 to add medicine or transfusion. Since the liquid-barrier film 7 and the thermoplastic elastomer 6 are in a separated state, when the puncture needle is pulled out of the thermoplastic elastomer 6, the thermoplastic elastomer 6 is not restrained by the liquid-barrier film 7, the resilience of the thermoplastic elastomer 6 is fully exerted, and the liquid is prevented from flowing out/seeping out.
Example 5
As shown in fig. 12, the combined sealing cover for the infusion soft bag of the present embodiment is similar to embodiment 1 except that the film 5 is replaced with a pull-ring type cover. The pull ring type gland comprises a gland body 5.2 arranged on the upper side of the first cover body, the edge and the middle of the gland body 5.2 can be separated by means of external force, the pull ring 5.5 is connected to the middle of the gland body, and when the edge and the middle of the gland body 5.2 are separated, the edge of the gland body 5.2 is kept on the upper side of the first cover body.
The preparation method of the combined sealing cover for the transfusion soft bag is similar to that of the embodiment 1, and the difference is that: in step 4, "the film 5 is thermally welded on the thermoplastic elastomer 6 by the film sticking machine" is replaced with "the pull ring type gland is thermally welded on the thermoplastic elastomer 6 by the capping machine".
When the infusion bottle is used, the interface 11 of the second cover body 15 and an infusion soft bag filled with liquid medicine are subjected to hot melting welding, and the liquid isolating film 7 can isolate the liquid from contacting with the thermoplastic elastomer 6, so that the safe and long-term storage of the liquid is better ensured. When medicine or transfusion is needed, the pull ring 5.5 is pulled to drive the middle part and the edge of the gland body 5.2 to be separated and expose a transfusion hole, and a puncture needle (the puncture needle can be a resin needle or an injection steel needle) is used for puncturing the thermoplastic elastomer 6 and the liquid separation membrane 7 through the puncture hole 2 to carry out medicine or transfusion. Since the liquid-barrier film 7 and the thermoplastic elastomer 6 are in a separated state, when the puncture needle is pulled out of the thermoplastic elastomer 6, the thermoplastic elastomer 6 is not restrained by the liquid-barrier film 7, the resilience of the thermoplastic elastomer 6 is fully exerted, and the liquid is prevented from flowing out/seeping out.
Example 6
As shown in fig. 5, the combined sealing cover for an infusion soft bag of the present embodiment is similar to embodiment 1 except that the first cover body 14 is not provided with a second recess (also referred to as a void-avoiding portion).
Example 7
As shown in fig. 17, the combined sealing cover for the infusion soft bag of the present embodiment is similar to embodiment 1, except that, as shown in fig. 18, the second cover body 15 includes a port 11 for connecting with the infusion soft bag and two hollow pipes 16 formed on the upper side of the port 11 and communicated with the port 11, and the number of the first cover bodies 14 is two, and the two first cover bodies are respectively arranged on the upper sides of the two pipes 16 and are fixedly connected with the top ends of the pipes 16 in a sealing manner.
Example 8
As shown in fig. 14, the combined sealing cover for the infusion soft bag of the present embodiment is similar to embodiment 3, except that the second cover body comprises a port 11 for connecting with the infusion soft bag and two hollow pipelines 16 formed on the upper side of the port 11 and communicated with the port 11, and the number of the first cover bodies 14 is two, and the two first cover bodies are respectively arranged on the upper sides of the two pipelines 16 and are fixedly connected with the top ends of the pipelines 16 in a sealing manner.
Example 9
As shown in fig. 15, the combined sealing cover for the infusion soft bag of the present embodiment is similar to embodiment 4, except that the second cover body comprises a port 11 for connecting with the infusion soft bag and two hollow pipelines 16 formed on the upper side of the port 11 and communicated with the port 11, and the number of the first cover bodies 14 is two, and the two first cover bodies are respectively arranged on the upper sides of the two pipelines 16 and are fixedly connected with the top ends of the pipelines 16 in a sealing manner.
Example 10
As shown in fig. 16, the combined sealing cover for the infusion soft bag of the present embodiment is similar to embodiment 5, except that the second cover body comprises a port 11 for connecting with the infusion soft bag and two hollow pipelines 16 formed on the upper side of the port 11 and communicated with the port 11, and the number of the first cover bodies 14 is two, and the two first cover bodies are respectively arranged on the upper sides of the two pipelines 16 and are fixedly connected with the top ends of the pipelines 16 in a sealing manner.
Example 11
As shown in fig. 19 and 20, the combined sealing cover for an infusion soft bag of the present embodiment is similar to embodiment 2, except that the second cover body 15 includes a port 11 for connecting with the infusion soft bag and two hollow pipes 16 formed on the upper side of the port 11 and communicated with the port 11, and the number of the first cover bodies 14 is two, and the two first cover bodies are respectively arranged on the upper sides of the two pipes 16 and are fixedly connected with the top ends of the pipes 16 in a sealing manner.
Claims (10)
1. A combined sealing cover for a soft infusion bag is characterized by comprising a first cover body and a second cover body, wherein the first cover body is arranged on the upper side of the second cover body and is fixedly connected with the second cover body, a thermoplastic elastomer is arranged in the first cover body, a liquid isolating film is arranged on the upper portion of the second cover body, and the liquid isolating film is arranged on the lower side of the thermoplastic elastomer.
2. The combination seal cover for an infusion soft bag according to claim 1, wherein the thermoplastic elastomer is fixedly connected with the inner wall of the first cover body in a sealing manner, the lower end of the first cover body is fixedly connected with the upper end of the second cover body in a sealing manner, and the liquid-proof film is fixedly connected with the second cover body in a sealing manner.
3. The combination seal cover for an infusion soft bag according to claim 1, wherein the first cover body and the second cover body are respectively injection molded, and the first cover body and the thermoplastic elastomer are integrally injection molded by using a two-color injection molding technique.
4. The combination seal cover for an infusion soft bag according to claim 1, wherein the liquid-barrier film is integrally formed with the second cover body or fixedly connected thereto by welding.
5. The combination sealing cover for the infusion soft bag according to claim 1, wherein the second cover body comprises a port for connecting with the infusion soft bag and at least one hollow pipeline formed at the upper side of the port and communicated with the port, and the first cover body is arranged at the upper side of the pipeline and fixedly connected with the top end of the pipeline in a sealing way.
6. The combination seal cover for an infusion soft bag according to claim 5, wherein the inner wall of the pipeline is circular or elliptical in cross section, and the inner wall of the port is tapered.
7. The combination sealing cover for the infusion soft bag according to claim 1, wherein the upper side of the first cover body is provided with a film, a pull-ring type gland, an easy-folding type gland or an easy-pulling type gland, the pull-ring type gland comprises a gland body arranged on the upper side of the first cover body, the edge and the middle part of the gland body can be separated by means of external force, the middle part of the gland body is connected with a pull ring, and when the edge and the middle part of the gland body are separated, the edge of the gland body is kept on the upper side of the first cover body; the easy-to-break type gland comprises a gland body arranged on the upper side of the first cover body, an infusion hole allowing a puncture needle to penetrate through is formed in the gland body, an easy-to-break handle is arranged in the infusion hole of the gland body and connected with the gland body into a whole, and the easy-to-break handle and the gland body can be separated from each other by means of external force so as to expose the infusion hole; the easy-pulling type gland comprises a gland body arranged on the upper side of the first cover body, an infusion hole allowing a puncture needle to penetrate through is formed in the gland body, an easy-pulling handle is arranged in the infusion hole of the gland body and connected with the gland body into a whole, the easy-pulling handle and the gland body can be separated from each other by means of external force, the infusion hole is exposed, the easy-pulling handle is arranged in the direction perpendicular to the upper end face of the gland body, and the easy-pulling handle is arranged in the direction parallel to the upper end face of the gland body.
8. The combination seal cover for an infusion soft bag according to claim 1, wherein the thermoplastic elastomer is provided with at least one groove, the groove is positioned at the upper side and/or the lower side of the thermoplastic elastomer, the side wall of the groove is a straight surface or a conical surface, and the first cover body is provided with at least one groove; the upper side and/or the lower side of the thermoplastic elastomer are/is provided with one or more needle punched holes.
9. The combination seal cover for an infusion soft bag according to claim 1, wherein the liquid barrier film is a hard sheet or a soft film.
10. The combination sealing cover for the infusion soft bag according to claim 1, wherein a positioning block is arranged on the outer wall of the first cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921536494.XU CN211610763U (en) | 2019-09-16 | 2019-09-16 | Combined sealing cover for soft infusion bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921536494.XU CN211610763U (en) | 2019-09-16 | 2019-09-16 | Combined sealing cover for soft infusion bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211610763U true CN211610763U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921536494.XU Active CN211610763U (en) | 2019-09-16 | 2019-09-16 | Combined sealing cover for soft infusion bag |
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| Country | Link |
|---|---|
| CN (1) | CN211610763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936759A (en) * | 2021-04-09 | 2021-06-11 | 成都市联余精密机械有限公司 | Lifting ring integrated bottle blank with large glue opening column cooling area and forming die thereof |
-
2019
- 2019-09-16 CN CN201921536494.XU patent/CN211610763U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936759A (en) * | 2021-04-09 | 2021-06-11 | 成都市联余精密机械有限公司 | Lifting ring integrated bottle blank with large glue opening column cooling area and forming die thereof |
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