Environment-friendly multi-layer infusion bag structure made of degradable material

Abstract

The utility model relates to the technical field of infusion bags, and discloses an environment-friendly multi-layer infusion bag structure made of degradable materials, which solves the problem that the existing infusion bag is poor in environment-friendly performance and comprises an infusion bag body. The infusion bag body is composed of a regenerated cellulose membrane inner layer, a polylactic acid layer, a poly (butylene succinate) layer, a polypropylene layer and a cellulose nano-fibril membrane outer layer, the polylactic acid layer is located on the outer surface of the regenerated cellulose membrane inner layer, and the poly (butylene succinate) layer is located on the outer surface of the polylactic acid layer. The polypropylene layer is located on the outer surface of the poly (butylene succinate) layer, the cellulose nanofibril film outer layer is located on the outer surface of the polypropylene layer, and an infusion tube anti-falling limiting assembly is arranged at the bottom end of one side of the infusion bag body. The infusion tube anti-falling limiting assembly is composed of an L-shaped paper base layer, an L-shaped plastic strip, a first L-shaped paper plastic layer, a second L-shaped paper plastic layer and L-shaped release paper. By means of the infusion bag, the environmental protection performance can be improved, and meanwhile the infusion tube is prevented from being separated from the infusion bag.

Description

Technical Field

[0001] This utility model belongs to the field of infusion bag technology, specifically an environmentally friendly multi-layer infusion bag structure made of biodegradable materials. Background Technology

[0002] Infusion bags are medical supplies used extensively every day. Currently, most infusion bags are made of PVC, which has poor barrier properties and is not biodegradable, potentially leading to reuse and posing certain safety hazards. In addition, during use, especially when patients go to the toilet or walk, there is a possibility that the infusion bag may fall off. When the infusion bag falls off, the infusion tubing can easily detach from the bag. When the infusion tubing is subjected to external force, it can also easily detach from the bag. In this case, the unused medication inside the infusion bag and the infusion tubing cannot be used, resulting in waste. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the prior art, this utility model provides an environmentally friendly multi-layer infusion bag structure made of biodegradable materials, which effectively solves the problem of poor environmental performance of existing infusion bags.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly multilayer infusion bag structure made of biodegradable material, comprising an infusion bag body, wherein the infusion bag body is composed of a regenerated cellulose membrane inner layer, a polylactic acid layer, a polybutylene succinate layer, a polypropylene layer, and a cellulose nanofiber membrane outer layer, wherein the polylactic acid layer is located on the outer surface of the regenerated cellulose membrane inner layer, the polybutylene succinate layer is located on the outer surface of the polylactic acid layer, the polypropylene layer is located on the outer surface of the polybutylene succinate layer, the cellulose nanofiber membrane outer layer is located on the outer surface of the polypropylene layer, and an infusion tube anti-drop limiting component is provided at the bottom end of one side of the infusion bag body;

[0005] The infusion tube anti-dislodgement limiting component consists of an L-shaped paper base layer, an L-shaped plastic strip, an L-shaped paper-plastic layer one, an L-shaped paper-plastic layer two, and an L-shaped release paper. One side of the L-shaped paper base layer is glued to the body of the infusion bag, and one end of the L-shaped plastic strip is heat-fused to the outer surface of the body of the infusion bag. The L-shaped paper-plastic layer one is connected between the L-shaped plastic strip and the L-shaped paper base layer, the L-shaped paper-plastic layer two is connected to the side of the L-shaped plastic strip away from the L-shaped paper base layer, and the L-shaped release paper is connected to the side of the L-shaped paper-plastic layer two away from the L-shaped plastic strip.

[0006] Preferably, the regenerated cellulose membrane inner layer, polylactic acid layer, polybutylene succinate layer, polypropylene layer and cellulose nanofiber membrane outer layer are integrally extruded structures.

[0007] Preferably, the width of the L-shaped paper base layer is greater than the width of the L-shaped plastic strip, and the length of the L-shaped paper base layer is less than the length of the L-shaped plastic strip.

[0008] Preferably, a connecting hole is provided at the middle position of the top of the infusion bag body, and reinforcing ribs are fixedly provided at the top of both sides of the infusion bag body. The reinforcing ribs and the infusion bag body are integrally extruded and molded, and the reinforcing ribs are located at the top of the connecting hole.

[0009] Preferably, the bottom end of the infusion bag body is fixedly provided with an infusion tube connector and a drug inlet.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) In operation, by setting up an infusion bag body composed of an inner layer of regenerated cellulose membrane, a polylactic acid layer, a polybutylene succinate layer, a polypropylene layer and an outer layer of cellulose nanofiber membrane, the biodegradability of the infusion bag body can be improved, thereby improving the environmental performance of the infusion bag body.

[0012] (2) By setting up an infusion tube anti-detachment limiting component consisting of an L-shaped paper base layer, an L-shaped plastic strip, an L-shaped paper-plastic layer one, an L-shaped paper-plastic layer two and an L-shaped release paper, the infusion tube can be pulled and limited to prevent it from detaching from the infusion bag during infusion, thereby improving the safety of use and avoiding waste.

[0013] (3) By setting up reinforcing ribs, the position of the connection hole can be reinforced to prevent the connection hole from breaking and further improve the safety of use. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is one of the schematic diagrams of the environmentally friendly multi-layer infusion bag made of biodegradable material according to this utility model;

[0017] Figure 2 This is a schematic diagram of the body layer structure of the infusion bag of this utility model;

[0018] Figure 3 This is the second schematic diagram of the environmentally friendly multi-layer infusion bag made of biodegradable material according to this utility model;

[0019] Figure 4 This is a partial structural diagram of the environmentally friendly multilayer infusion bag made of biodegradable material according to this utility model;

[0020] Figure 5 This utility model Figure 3 A magnified view of a section at point A in the middle;

[0021] In the diagram: 1. Infusion bag body; 2. Inner layer of regenerated cellulose membrane; 3. Polylactic acid layer; 4. Polybutylene succinate layer; 5. Polypropylene layer; 6. Outer layer of cellulose nanofiber membrane; 7. Infusion tube anti-drop limiting component; 8. L-shaped paper base layer; 9. L-shaped plastic strip; 10. L-shaped paper-plastic layer one; 11. L-shaped paper-plastic layer two; 12. L-shaped release paper; 13. Connecting hole; 14. Reinforcing rib; 15. Infusion tube connector; 16. Drug injection port. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Depend on Figures 1 to 5 This invention discloses an environmentally friendly multilayer infusion bag structure made of biodegradable material, comprising an infusion bag body 1. The infusion bag body 1 is composed of a regenerated cellulose membrane inner layer 2, a polylactic acid layer 3, a polybutylene succinate layer 4, a polypropylene layer 5, and a cellulose nanofiber membrane outer layer 6. The polylactic acid layer 3 is located on the outer surface of the regenerated cellulose membrane inner layer 2, the polybutylene succinate layer 4 is located on the outer surface of the polylactic acid layer 3, the polypropylene layer 5 is located on the outer surface of the polybutylene succinate layer 4, and the cellulose nanofiber membrane outer layer 6 is located on the outer surface of the polypropylene layer 5. An infusion tube anti-drop limiting component 7 is provided at the bottom end of one side of the infusion bag body 1.

[0024] The inner layer 2 of the regenerated cellulose membrane, the polylactic acid layer 3, the polybutylene succinate layer 4, the polypropylene layer 5, and the outer layer 6 of the cellulose nanofiber membrane can be automatically degraded, thus improving environmental performance.

[0025] The infusion tube anti-drop limiting component 7 is composed of an L-shaped paper base layer 8, an L-shaped plastic strip 9, an L-shaped paper-plastic layer one 10, an L-shaped paper-plastic layer two 11, and an L-shaped release paper 12. One side of the L-shaped paper base layer 8 is glued to the infusion bag body 1. One end of the L-shaped plastic strip 9 is heat-fused to the outer surface of the infusion bag body 1. The L-shaped paper-plastic layer one 10 is connected between the L-shaped plastic strip 9 and the L-shaped paper base layer 8. The L-shaped paper-plastic layer two 11 is connected to the side of the L-shaped plastic strip 9 away from the L-shaped paper base layer 8. The L-shaped release paper 12 is connected to the side of the L-shaped paper-plastic layer two 11 away from the L-shaped plastic strip 9.

[0026] During infusion, after the infusion tube is connected to the infusion bag body 1, the L-shaped plastic strip 9 is pulled by hand to separate it from the L-shaped paper base layer 8. The L-shaped paper-plastic layer 10 has a strong adhesion to the L-shaped plastic strip 9. At this time, the L-shaped paper base layer 8 will be torn and delaminated. The L-shaped paper base layer 8 will remain on the surface of the L-shaped paper-plastic layer 10 to prevent it from being exposed. Then, the L-shaped release paper 12 is separated from the L-shaped paper-plastic layer 11. The L-shaped plastic strip 9 is then wrapped around one end of the infusion tube and bonded through the L-shaped paper-plastic layer 11, thereby reinforcing the infusion tube and preventing it from detaching from the infusion bag body 1.

[0027] The inner layer 2 of the regenerated cellulose membrane, the polylactic acid layer 3, the polybutylene succinate layer 4, the polypropylene layer 5, and the outer layer 6 of the cellulose nanofiber membrane are an integral extrusion molding structure, which can achieve integral molding;

[0028] The width of the L-shaped paper base layer 8 is greater than the width of the L-shaped plastic strip 9, which can prevent misalignment when the L-shaped plastic strip 9 is connected to the L-shaped paper base layer 8. The length of the L-shaped paper base layer 8 is less than the length of the L-shaped plastic strip 9, which allows the two ends of the L-shaped plastic strip 9 to have reserved length.

[0029] A connection hole 13 is provided at the middle of the top of the infusion bag body 1. Reinforcing ribs 14 are fixedly provided at the top of both sides of the infusion bag body 1. The reinforcing ribs 14 and the infusion bag body 1 are integrally extruded structures. The reinforcing ribs 14 are located at the top of the connection hole 13. The position of the connection hole 13 can be reinforced by the reinforcing ribs 14 to prevent the connection from breaking when the infusion bag body 1 is suspended.

[0030] The bottom end of the infusion bag body 1 is fixedly provided with an infusion tube connector 15 and a drug inlet 16, which can be connected to the infusion tube and the drug inlet respectively.

[0031] In operation, by setting up an infusion bag body composed of an inner layer of regenerated cellulose membrane, a polylactic acid layer, a polybutylene succinate layer, a polypropylene layer, and an outer layer of cellulose nanofiber membrane, the biodegradability of the infusion bag body can be improved, thereby enhancing its environmental performance. By setting up an infusion tube anti-detachment limiting component composed of an L-shaped paper base layer, an L-shaped plastic strip, an L-shaped paper-plastic layer one, an L-shaped paper-plastic layer two, and an L-shaped release paper, the infusion tube can be pulled and limited, preventing it from detaching from the infusion bag during infusion, improving safety and avoiding waste. By setting up reinforcing ribs, the connection hole position can be reinforced to prevent breakage, further improving safety.

Claims

1. An environmentally friendly multilayer infusion bag structure made of biodegradable material, comprising an infusion bag body (1), characterized in that: The infusion bag body (1) is composed of a regenerated cellulose membrane inner layer (2), a polylactic acid layer (3), a polybutylene succinate layer (4), a polypropylene layer (5), and a cellulose nanofiber membrane outer layer (6). The polylactic acid layer (3) is located on the outer surface of the regenerated cellulose membrane inner layer (2), the polybutylene succinate layer (4) is located on the outer surface of the polylactic acid layer (3), the polypropylene layer (5) is located on the outer surface of the polybutylene succinate layer (4), and the cellulose nanofiber membrane outer layer (6) is located on the outer surface of the polypropylene layer (5). An infusion tube anti-drop limiting component (7) is provided at the bottom of one side of the infusion bag body (1). The infusion tube anti-drop limiting component (7) is composed of an L-shaped paper base layer (8), an L-shaped plastic strip (9), an L-shaped paper-plastic layer one (10), an L-shaped paper-plastic layer two (11), and an L-shaped release paper (12). One side of the L-shaped paper base layer (8) is glued to the infusion bag body (1), and one end of the L-shaped plastic strip (9) is heat-fused to the outer surface of the infusion bag body (1). The L-shaped paper-plastic layer one (10) is connected between the L-shaped plastic strip (9) and the L-shaped paper base layer (8). The L-shaped paper-plastic layer two (11) is connected to the side of the L-shaped plastic strip (9) away from the L-shaped paper base layer (8). The L-shaped release paper (12) is connected to the side of the L-shaped paper-plastic layer two (11) away from the L-shaped plastic strip (9).

2. The environmentally friendly multi-layer infusion bag structure made of biodegradable material according to claim 1, characterized in that: The inner layer (2) of the regenerated cellulose membrane, the polylactic acid layer (3), the polybutylene succinate layer (4), the polypropylene layer (5), and the outer layer (6) of the cellulose nanofiber membrane are an integral extrusion-molded structure.

3. The environmentally friendly multi-layer infusion bag structure made of biodegradable material according to claim 1, characterized in that: The width of the L-shaped paper base layer (8) is greater than the width of the L-shaped plastic strip (9), and the length of the L-shaped paper base layer (8) is less than the length of the L-shaped plastic strip (9).

4. The environmentally friendly multi-layer infusion bag structure made of biodegradable material according to claim 1, characterized in that: A connection hole (13) is provided at the middle position of the top of the infusion bag body (1). Reinforcing ribs (14) are fixedly provided at the top of both sides of the infusion bag body (1). The reinforcing ribs (14) and the infusion bag body (1) are integrally extruded and molded. The reinforcing ribs (14) are located at the top of the connection hole (13).

5. The environmentally friendly multi-layer infusion bag structure made of biodegradable material according to claim 1, characterized in that: The infusion bag body (1) is fixedly provided with an infusion tube connector (15) and a drug inlet (16) at the bottom end.

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