Multi-layer co-extrusion film soft bag powder injection for injection

Abstract

The invention is suitable for the technical field of infusion products, and provides a multi-layer co-extrusion film soft bag powder injection for injection, which comprises a medicine bag, a bag cavity assembly is arranged in the medicine bag, the bag cavity assembly comprises a first bag cavity, a second bag cavity and a weak welding rod, one end of the medicine bag is provided with an infusion port, and the infusion port is communicated with the first bag cavity or the second bag cavity. A hanging hole is formed in one end of the medicine bag away from the infusion opening; a first diaphragm assembly and a second diaphragm assembly are attached to the two sides of the medicine bag correspondingly, and the first diaphragm assembly and the second diaphragm assembly are used for shielding medicine in the first bag cavity and the second bag cavity from light. The peelable first diaphragm assembly is arranged on one side of the medicine bag, and the blocking piece for blocking the hanging hole is arranged at one end of the first diaphragm assembly, so that a user can be forced to inspect medicine powder in the medicine bag before infusion, the effectiveness of medicine is ensured, the safety in the infusion process is improved, and potential safety hazards are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of infusion products, and in particular relates to a multi-layer co-extruded film soft bag powder injection for injection. Background Art

[0002] With the widespread application of infusion therapy in veterinary clinics, infusion equipment and technology have evolved from open, semi-open to fully closed systems. At the same time, infusion container materials have also evolved from traditional glass bottles to polyvinyl chloride (PVC) soft bags, and then to today's polypropylene and polyethylene (PP / PE) hard plastic bottles, as well as soft bags made of multi-layer co-extruded infusion films.

[0003] Glass bottles are widely used due to their excellent transparency, thermal stability, and barrier properties to water and gas, but their rigid structure requires the introduction of air into the bottle through a vent tube during the infusion process to maintain the pressure of the drug outflow, which increases the risk of dust and microbial contamination.

[0004] PVC soft bags realize a fully closed system infusion, greatly reducing the possibility of infection. However, the plasticizers contained in PVC materials may penetrate into the drug solution, causing potential harm to the human body, and PVC has a certain adsorption effect on drugs, affecting the efficacy of the drugs. In addition, PVC materials are sensitive to temperature and humidity, and inappropriate storage conditions will affect product quality.

[0005] Plastic infusion bottles (such as PE / PP) are not only lightweight, but also have improved compatibility with liquid medicine and solve environmental issues. However, these bottles cannot fully restore their shape after emptying the liquid medicine, and require an air inlet, which may lead to an increase in particles. At the same time, these materials have limited low-temperature brittleness and high-temperature tolerance, which limits their application range.

[0006] Although the infusion soft bags made of multi-layer co-extruded infusion films reduce the number of infusion interfaces and improve the sealing performance, they are inconvenient to replace when the drug solution is insufficient. If the sealing design is unreasonable, it is easy to cause material waste and the risk of drug contamination.

[0007] Therefore, in view of the above situation, it is urgent to develop a multi-layer co-extruded film soft bag powder injection for injection to overcome the shortcomings in current practical applications. Summary of the invention

[0008] The object of the present invention is to provide a multi-layer co-extruded film soft bag powder injection for injection, aiming to solve the problems mentioned in the above background technology.

[0009] The present invention is implemented as follows: a multi-layer co-extruded film soft bag powder injection for injection, comprising a medicine bag, wherein a bag cavity assembly is arranged inside the medicine bag, the bag cavity assembly comprises a first bag cavity, a second bag cavity and a weak welding rod, the weak welding rod is arranged between the first bag cavity and the second bag cavity, the weak welding rod is used to separate the medicines in the first bag cavity and the second bag cavity, an infusion port is arranged at one end of the medicine bag, and the infusion port is connected with the first bag cavity or the second bag cavity, and a hanging hole is also opened at one end of the medicine bag away from the infusion port; the first diaphragm assembly and the second diaphragm assembly are respectively attached to the two sides of the medicine bag, and the first diaphragm assembly and the second diaphragm assembly are used to shield the medicines in the first bag cavity and the second bag cavity from light;

[0010] The first bag cavity and the second bag cavity are respectively located on the left and right sides between the infusion port and the hanging hole;

[0011] The edges of the medicine bag are all sealed by solid welding.

[0012] A further technical solution is that the first diaphragm assembly includes a first barrier film, a sealing opening and a barrier sheet. The first barrier film is fitted and arranged on one side of the medicine bag. The sealing opening and the barrier sheet are respectively provided at both ends of the first barrier film. The sealing opening is located at the end close to the infusion port, and a gap is set between the sealing opening and the medicine bag. The barrier sheet is fitted to the surface of the medicine bag and blocks the hanging hole.

[0013] According to a further technical solution, the second diaphragm assembly is a non-peelable barrier film.

[0014] A further technical solution is that the second diaphragm assembly includes a second barrier film, a bottom diaphragm and a top diaphragm. The second barrier film is fitted and arranged on a side of the medicine bag away from the first diaphragm assembly. The bottom diaphragm and the top diaphragm are respectively arranged at both ends of the second barrier film. The bottom diaphragm is located at an end close to the infusion port and is arranged close to the surface of the medicine bag. The top diaphragm is fitted to the surface of the medicine bag and is offset from the hanging hole.

[0015] The multi-layer co-extruded film soft bag powder injection provided by the present invention has the following beneficial effects:

[0016] By providing a peelable first diaphragm assembly on one side of the medicine bag and providing a blocking piece for sealing the hanging hole at one end of the first diaphragm assembly, the user can be forced to inspect the medicinal powder in the medicine bag before infusion to ensure the effectiveness of the medicine, increase the safety during the infusion process, avoid safety hazards, and have high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the front structure of a multi-layer co-extruded film soft bag powder injection for injection provided in an embodiment of the present invention;

[0018] Figure 2A schematic diagram of the side structure of a multi-layer co-extruded film soft bag powder injection for injection provided in an embodiment of the present invention.

[0019] In the figure: 1-medicine bag, 2-bag cavity assembly, 201-first bag cavity, 202-second bag cavity, 203-weak welding rod, 3-infusion port, 4-hanging hole, 5-first diaphragm assembly, 501-first barrier film, 502-sealing, 503-barrier sheet, 6-second diaphragm assembly, 601-second barrier film, 602-bottom diaphragm, 603-top diaphragm. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] like Figure 1-2 As shown, a multi-layer co-extruded film soft bag powder injection for injection provided by an embodiment of the present invention includes a medicine bag 1, a bag cavity assembly 2 is arranged inside the medicine bag 1, the bag cavity assembly 2 includes a first bag cavity 201, a second bag cavity 202 and a weak welding rod 203, the weak welding rod 203 is arranged between the first bag cavity 201 and the second bag cavity 202, the weak welding rod 203 is used to separate the medicines in the first bag cavity 201 and the second bag cavity 202, an infusion port 3 is arranged at one end of the medicine bag 1, and the infusion port 3 is connected to the first bag cavity 201 or the second bag cavity 202, and a hanging hole 4 is also opened at the end of the medicine bag 1 away from the infusion port 3; the first diaphragm assembly 5 and the second diaphragm assembly 6 are respectively attached to the two sides of the medicine bag 1, and the first diaphragm assembly 5 and the second diaphragm assembly 6 are used to shield the medicines in the first bag cavity 201 and the second bag cavity 202 from light.

[0023] In the embodiment of the present invention, the weak welding rod 203 is used to independently store the medicine contained in the first bag cavity 201 and the second bag cavity 202, and the first diaphragm assembly 5 and the second diaphragm assembly 6 can store the medicine in the first bag cavity 201 and the second bag cavity 202 in a light-proof manner; during use, the user needs to first peel off the fitted first diaphragm assembly 5 from one side of the medicine bag 1. During the peeling process, as the user peels off, the first diaphragm assembly 5 falls off from the medicine bag 1, and the opening of the hanging hole 4 is in an open state. At this time, the user places the medicine bag 1 flat on the table, and then squeezes the cavity bags of the first bag cavity 201 and / or the second bag cavity 202 by hand to continuously increase the internal pressure of the cavity bags. When the liquid pressure exceeds the threshold, the liquid breaks through the weak welding rod 203 and flows into the cavity bag on the other side, and mixes with the medicine in the cavity bag on the other side to obtain a mixed medicine. At this time, the user can hang the medicine bag 1 on the bracket through the hanging hole 4 for infusion.

[0024] As a preferred embodiment of the present invention, the first bag cavity 201 and the second bag cavity 202 are respectively located on the left and right sides between the infusion port 3 and the hanging hole 4; the edge positions of the medicine bag 1 are sealed by solid welding to ensure the sealing of the medicine bag 1.

[0025] like Figure 2 As shown, as a preferred embodiment of the present invention, the first diaphragm assembly 5 includes a first barrier film 501, a sealing opening 502 and a barrier sheet 503. The first barrier film 501 is fitted and arranged on one side of the medicine bag 1. The sealing opening 502 and the barrier sheet 503 are respectively arranged at both ends of the first barrier film 501. The sealing opening 502 is located at the end close to the infusion port 3, and a gap is set between the sealing opening 502 and the medicine bag 1 so that the sealing opening 502 end can be easily opened from the surface of the medicine bag 1. When peeling off the first diaphragm assembly 5, the user can pull the sealing opening 502 to drive the first barrier film 501 to fall off from one end of the medicine bag 1. The barrier sheet 503 is fitted to the surface of the medicine bag 1 and blocks the hanging hole 4 to prevent the user from directly hanging the medicine bag 1 on the bracket through the hanging hole 4 for infusion without peeling off the first diaphragm assembly 5.

[0026] like Figure 2 As shown, as a preferred embodiment of the present invention, the second diaphragm assembly 6 is a non-peelable barrier film.

[0027] The second diaphragm assembly 6 includes a second barrier film 601, a bottom diaphragm 602 and a top diaphragm 603. The second barrier film 601 is arranged on the side of the medicine bag 1 away from the first diaphragm assembly 5. The bottom diaphragm 602 and the top diaphragm 603 are respectively arranged at both ends of the second barrier film 601. The bottom diaphragm 602 is located at the end close to the infusion port 3 and is arranged close to the surface of the medicine bag 1 so that the end of the bottom diaphragm 602 cannot be lifted from the surface of the medicine bag 1. The top diaphragm 603 is in contact with the surface of the medicine bag 1 and is offset from the hanging hole 4.

[0028] like Figure 2 As shown, as a preferred embodiment of the present invention, the multi-layer co-extruded film soft bag powder injection for injection has a first surface a and a second surface b relative to each other, the barrier 503 is fitted on the first surface a and covered on the hanging hole 4, the top diaphragm 603 is fitted on the first surface a and is staggered with the hanging hole 4, the sealing opening 502 is fitted on the second surface b and a gap is left between the end of the sealing opening 502 and the second surface b, and the bottom diaphragm 602 is fitted on the second surface b and the bottom diaphragm 602 is tightly fitted on the second surface b.

[0029] When the barrier film 503 at one end of the first barrier film 501 is attached to the first surface a, the barrier film 503 is in a blocked state at one end of the hanging hole 4, preventing the user from directly hanging the medicine bag 1 on the bracket. At the same time, the top diaphragm 603 is offset from the hanging hole 4. When the first barrier film 501 is peeled off from one end of the medicine bag 1, the top diaphragm 603 does not affect the user from hanging the medicine bag 1 on the bracket. The sealing opening 502 on the second surface b side facilitates the peeling of the first barrier film 501 from the medicine bag 1. The bottom diaphragm 602 is attached to the second surface b without leaving a gap with the second surface b, thereby avoiding difficulty for the user to distinguish during use.

[0030] The above embodiment of the present invention provides a multi-layer co-extruded film soft bag powder injection for injection. By providing a peelable first diaphragm component 5 on one side of the medicine bag 1, and providing a blocking piece 503 for blocking the hanging hole 4 at one end of the first diaphragm component 5, the user can be forced to inspect the medicine powder in the medicine bag 1 before infusion to ensure the effectiveness of the medicine, increase the safety during the infusion process, avoid safety hazards, and have high practical value.

[0031] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A multi-layer co-extruded film soft bag powder injection for injection, comprising a medicine bag (1), characterized in that: The medicine bag (1) is provided with a bag cavity assembly (2) inside, the bag cavity assembly (2) comprising a first bag cavity (201), a second bag cavity (202) and a weak welding rod (203), the weak welding rod (203) being arranged between the first bag cavity (201) and the second bag cavity (202), and the weak welding rod (203) being used to separate the medicines in the first bag cavity (201) and the second bag cavity (202); An infusion port (3) is provided at one end of the medicine bag (1), and the infusion port (3) is in communication with the first bag cavity (201) or the second bag cavity (202); The medicine bag (1) is also provided with a hanging hole (4) at one end away from the infusion port (3); A first diaphragm assembly (5) and a second diaphragm assembly (6) are respectively attached to two sides of the medicine bag (1); the first diaphragm assembly (5) and the second diaphragm assembly (6) are used to shield the medicine in the first bag cavity (201) and the second bag cavity (202) from light; The first bag cavity (201) and the second bag cavity (202) are respectively located on the left and right sides between the infusion port (3) and the hanging hole (4); The edges of the medicine bag (1) are all sealed by solid welding.

2. The multi-layer co-extruded film soft bag powder injection for injection according to claim 1, characterized in that: The first diaphragm assembly (5) comprises a first barrier film (501), a sealing opening (502) and a barrier sheet (503); The first barrier film (501) is arranged on one side of the medicine bag (1), and a sealing opening (502) and a barrier sheet (503) are respectively arranged at two ends of the first barrier film (501). The sealing opening (502) is located at the end close to the infusion port (3), and a gap is arranged between the sealing opening (502) and the medicine bag (1). The barrier sheet (503) is arranged on the surface of the medicine bag (1) and blocks the hanging hole (4).

3. The multi-layer co-extruded film soft bag powder injection for injection according to claim 1, characterized in that: The second diaphragm component (6) is a non-peelable barrier film.

4. The multi-layer co-extruded film soft bag powder injection for injection according to claim 3, characterized in that: The second diaphragm assembly (6) comprises a second barrier membrane (601), a bottom diaphragm (602) and a top diaphragm (603); The second barrier film (601) is arranged in close contact with a side of the medicine bag (1) away from the first diaphragm assembly (5), and a bottom diaphragm (602) and a top diaphragm (603) are respectively arranged at two ends of the second barrier film (601), the bottom diaphragm (602) is located at one end close to the infusion port (3) and is arranged in close contact with the surface of the medicine bag (1), and the top diaphragm (603) is in close contact with the surface of the medicine bag (1) and is arranged offset from the hanging hole (4).

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