Non-connector filling type powder-liquid double-chamber infusion bag
By designing a non-interface filling powder-liquid dual-chamber infusion bag, adopting a liquid chamber smaller than the powder chamber, a welded seal made of the same material, and a multi-layer co-extrusion structure, the problems of complex production, high cost, and poor welding in the existing technology have been solved, and the full mixing of drugs and the welding quality of aluminum film have been improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2026-03-24
AI Technical Summary
The existing powder-liquid dual-chamber infusion bag manufacturing process is complex and costly, and there are risks of poor welding and foreign matter introduction. The unreasonable design of the liquid chamber and powder chamber leads to difficulties in extrusion, poor powder dispensing quality, and aluminum film welding quality problems.
The design incorporates a non-interface filling type powder-liquid dual-chamber infusion bag, with the liquid chamber being narrower than the powder chamber. The distance between the punched positioning holes on both sides of the powder chamber is greater than that of the liquid chamber edge. The bag is sealed using the same material and features a multi-layer co-extruded infusion bag structure. Defects are addressed by welding with aluminum foil.
Simplify the production process, reduce costs, minimize the risk of poor welding and foreign matter introduction, ensure thorough drug mixing and aluminum film welding quality, and improve bag flatness and aesthetics.
Smart Images
Figure CN224023920U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical infusion packaging bag technical field, concretely relates to a non interface filling formula powder liquid double chamber infusion bag. BACKGROUND
[0002] The powder-liquid double chamber infusion bag product includes the liquid chamber filled with the solvent for injection and the powder chamber filled with the medicine powder, the two chambers are separated by the weak welding strip, before use, the two chambers are not communicated with each other, when using, the medical staff only needs to squeeze the liquid chamber slightly, opens the weak welding separation strip between the two chambers, can make the solvent for injection and the medicine powder in the two chambers mix fully, supplies clinical use, thereby eliminates the secondary pollution problem when configuring infusion in the clinic, improves the safety, rationality and reliability of infusion, provides the convenience for clinical use.
[0003] The powder-liquid double chamber infusion bag is usually first weak welding separation strip and the forming welding of bag body, then carries out the welding of the polypropylene interface for plastic infusion container and bag body, and fills the solvent for injection through the polypropylene interface for plastic infusion container as the medicine filling port, finally carries out the heating welding fusion of the combination type sealing cover and the polypropylene interface for plastic infusion container, thereby completes the final sealing of the liquid chamber of powder-liquid double chamber infusion bag.
[0004] However, the design of this powder-liquid double chamber infusion bag also has some deficiencies, first, the production process is relatively complex, the polypropylene interface for plastic infusion container is used as the filling port of the solvent for injection, and also as the welding interface of product sealing, which has high requirements for the heat fusion welding of the polypropylene interface for plastic infusion container, the fusion welding of the combination sealing cover and the polypropylene interface for plastic infusion container, and also considers the quality factor influence of the inner packaging material itself.
[0005] Secondly, the production cost is high, because the production process of the polypropylene interface for plastic infusion container and the combination cover itself is relatively complex, the production cost is high, thereby increases the production cost of powder-liquid double chamber infusion bag.
[0006] In the prior art, the powder-liquid double-chamber bag is provided with a liquid chamber and a powder chamber with the same width or almost the same width, but the reasonable width of the liquid chamber depends on the amount of liquid medicine filled in the liquid chamber when the liquid chamber is filled through the infusion tube at the end of the liquid chamber, and the powder chamber is mainly clamped and positioned by the positioning holes punched on both sides of the powder chamber when the powder chamber is divided into powder medicine, so the width of the powder chamber is affected by the volume of the powder filled in the powder chamber and the width of the clamping and positioning of the powder chamber, and because the powder-liquid double-chamber bag finally realizes the penetration of the liquid chamber and the powder chamber by extruding the liquid chamber, and the liquid chamber and the powder chamber are shaken to fully dissolve the medicine for clinical use, so the original design of the liquid chamber and the powder chamber with the same width has two possible defects: the first possibility is that the width of the liquid chamber increases with the width of the powder chamber, and the impact force of the liquid in the bag becomes smaller when the powder-liquid double-chamber bag is extruded before clinical use, which causes difficulty in extrusion or insufficient mixing and dissolution of the medicine in the bag, affecting the clinical use effect; the second possibility is that the width of the powder chamber decreases with the width of the liquid chamber, which affects the clamping, opening of the bag and the process flow of the powder medicine during the production process, and affects the quality control of the powder and the utilization rate of the material, and the two sides of the powder chamber will be seriously uneven and deformed after the clamping and positioning of the powder during the powder division, which will affect the quality of the aluminum film welding in the later process.
[0007] In summary, the product also has the disadvantages of high production cost, potential quality risk and complex production process. Practical new type
[0008] In view of the problems in the prior art, the purpose of the present application is to provide a non-interface filling type powder-liquid double-chamber infusion bag to solve the problem that the polypropylene interface of the plastic infusion container is used as a filling port for injection solvent and a welded interface for product sealing, which causes poor welding and easy introduction of foreign matter.
[0009] A non-interface filling type powder-liquid double-chamber infusion bag, comprising a bag body, the bag body comprising a liquid chamber and a powder chamber separated by a weak welding separation strip; the liquid chamber is provided with an infusion tube at one end away from the powder chamber; the shoulder or side of the liquid chamber is provided with a liquid filling port communicating with the liquid chamber; the powder chamber comprises two cutting parts on both sides; the cutting part is provided with a punching positioning hole, and the distance between the punching positioning holes on both sides of the powder chamber is greater than the distance between the edges of the liquid chamber.
[0010] Further, the powder chamber is provided with a powder filling port at one end away from the liquid chamber; the powder filling port is provided with a tail sealing surface, and the powder filling port is sealed by the tail sealing surface.
[0011] Further, the powder chamber is provided with an aluminum film on the outside, and the aluminum film is provided with a lifting hole at one end away from the liquid chamber.
[0012] Further, the infusion tube is provided with a one-time injection molded full-sealing infusion tube cover at the top.
[0013] Further, the bag body is welded by non-PVC multi-layer co-extrusion infusion.
[0014] Further, at least two punching positioning holes are arranged on the cutting part.
[0015] Further, the number of the weak welding separation strips is not less than two.
[0016] Further, the liquid filling port is sealed by welding after liquid filling.
[0017] Beneficial effects: the original powder-liquid double-chamber bag adopts a plastic infusion container polypropylene interface welded on the bag body as a filling port, and after the injection liquid medicine is filled, the opening of the interface needs to be sealed, usually the sealing of the opening of the interface is achieved by hot melt welding of the combined cover and the interface, which undoubtedly increases the welding between different materials and components, in the present scheme, the liquid filling port is sealed by hot melt welding of the same material, which can reduce the risk of poor welding and foreign matter introduction.
[0018] The scheme that the width of the powder chamber is greater than the width of the liquid chamber, and the distance between the punching positioning holes on both sides of the powder chamber is greater than the distance between the edges of the liquid chamber, can perfectly solve the problems of difficult squeezing through of the powder-liquid double-chamber bag before clinical use, affecting the quality of powder dispensing, and affecting the quality of aluminum film welding, etc. in the background art, and at the same time, by punching and cutting off the powder chamber which is wider than the liquid chamber during the aluminum film welding in the later process (this part is actually the part that will appear serious unevenness and deformation after the powder chamber is clamped and positioned for powder dispensing), the width of the liquid chamber and the powder chamber is finally consistent, ensuring the quality of aluminum film welding in the later process and improving the flatness and appearance of the double-chamber bag body. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the specification will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.
[0020] Fig. 1 The structure schematic diagram of the powder-liquid double-chamber bag in the embodiments of the present application in the state of completing liquid dispensing;
[0021] Fig. 2 The structure schematic diagram of the powder-liquid double-chamber bag in the embodiments of the present application in the state of completing powder dispensing;
[0022] Fig. 3 The structure schematic diagram of the powder-liquid double-chamber bag in the embodiments of the present application in the state of completing aluminum film welding.
[0023] In the diagram: 1. Infusion tube; 2. Liquid chamber; 3. Weak welded partition strip; 4. Powder chamber; 5. Filling port; 6. Tail sealing surface; 7. Aluminum film; 9. Lifting hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0025] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0026] like Figs. 1-3 The illustration shows a non-interface filling type powder-liquid dual-chamber infusion bag, comprising a bag body, which includes a liquid chamber 2 and a powder chamber 4 separated from the liquid chamber 2 by a weakly welded partition strip; an infusion tube 1 is provided at the end of the liquid chamber 2 away from the powder chamber 4; a filling port 5 communicating with the liquid chamber 2 is provided on the shoulder or side of the liquid chamber 2; the powder chamber 4 includes cut sections on both sides; the cut sections are provided with punching positioning holes, and the distance between the punching positioning holes on both sides of the powder chamber 4 is greater than the distance between the two edges of the liquid chamber 2. The filling port is sealed by welding after filling.
[0027] In this embodiment, the main advantage of using a pre-reserved opening in the liquid chamber 2 as the filling port 5 for the injection solution is that: the original powder-liquid dual-chamber bags all use a polypropylene interface for plastic infusion containers welded to the bag body as the filling port. After the injection solution is filled, the opening of this interface needs to be sealed. Usually, the sealing of this interface opening is achieved by hot-melt welding of the combined cap and the interface, which undoubtedly increases the welding between different materials and components. In this solution, after filling is completed through the filling port 5, the filling port 5 is sealed by hot-melt welding. Welding and sealing with the same material can reduce the risk of poor welding and the introduction of foreign objects.
[0028] The distance between the punching positioning holes on both sides of the powder chamber 4 is greater than the distance between the two edges of the liquid chamber 2, that is, the width of the powder chamber 4 is greater than the width of the liquid chamber 2. The advantage of this design is that:
[0029] The original powder-liquid double-chamber bag is designed with the liquid chamber 2 and the powder chamber 4 having the same width or almost the same width. The liquid chamber 2 is clamped and positioned by the infusion tube 1 at the end of the liquid chamber 2 when the liquid chamber 2 is filled. The reasonable width of the liquid chamber 2 depends on the amount of liquid medicine filled in the liquid chamber 2.
[0030] When the powder chamber 4 is divided into powder medicine, the powder chamber 4 is mainly clamped and positioned by the punching positioning holes on both sides of the powder chamber 4. The width of the powder chamber 4 is affected by the volume of the powder filled in the powder chamber 4 and the width of the clamping and positioning of the powder chamber 4. Because the powder-liquid double-chamber finally realizes the penetration of the liquid chamber 2 and the powder chamber 4 by extruding the liquid chamber 2, and the powder is fully dissolved after shaking to be used in clinical use, the original design of the liquid chamber 2 and the powder chamber 4 having the same width has two possible defects. The first possible defect is that the width of the liquid chamber 2 increases with the width of the powder chamber 4, the impact force of the liquid in the bag becomes smaller when extruding through before clinical use, which causes difficulty in extruding through or insufficient mixing and dissolution of the medicine in the bag, thereby affecting the clinical use effect. The second possible defect is that the width of the powder chamber 4 decreases with the width of the liquid chamber 2, which is not conducive to the clamping, opening of the bag, and division of the powder chamber 4 during the production process of the powder medicine, thereby affecting the quality control of the powder division and the utilization rate of the material. Meanwhile, the clamping and positioning of the powder division on both sides of the powder chamber 4 will cause serious unevenness and deformation. The serious unevenness and deformation will affect the quality of the welding of the aluminum film 7 in the subsequent process. Therefore, in the present scheme, the distance between the punching positioning holes on both sides of the powder chamber 4 is greater than the distance between the edges of the liquid chamber 2, that is, the width of the powder chamber 4 is greater than the width of the liquid chamber 2. This design can perfectly solve the above-mentioned possible extrusion difficulties, affect the quality of the powder division, and affect the welding quality of the aluminum film 7 in the original scheme. Meanwhile, the cutting part on both sides of the powder chamber 4 is cut off during the welding of the aluminum film 7 in the subsequent process, so that the width of the liquid chamber 2 and the powder chamber 4 is consistent, thereby ensuring the welding quality of the aluminum film 7 in the subsequent process and the beauty of the appearance of the bag.
[0031] The end of the powder chamber 4 away from the liquid chamber 2 is provided with a powder filling port. The powder filling port is sealed by the tail sealing surface 6.
[0032] In the present embodiment, the powder filling port is provided to facilitate the filling of the powder in the powder chamber 4.
[0033] The outer side of the powder chamber 4 is provided with an aluminum film 7. The end of the aluminum film 7 away from the liquid chamber 2 is provided with a lifting hole 9.
[0034] In the present embodiment, the lifting hole 9 is provided to hang the infusion bag on various existing technology support rods during actual use, thereby facilitating infusion.
[0035] The top of the infusion tube 1 is welded with a one-time injection molded full-sealing infusion tube cover.
[0036] In this embodiment, the full-sealing infusion tube cover is installed on the infusion tube 1 by welding, and the sealing is good.
[0037] The bag body is welded by non-PVC multi-layer co-extrusion infusion mold.
[0038] In this embodiment, the non-PVC multi-layer co-extrusion infusion mold is welded for convenient production and manufacturing.
[0039] At least two punching positioning holes are provided on the cutting part.
[0040] In this embodiment, the punching positioning hole is provided for convenient clamping positioning.
[0041] The number of weak welding separation strips 3 is not less than two.
[0042] In this embodiment, the number of weak welding separation strips 3 is set to avoid the single weak welding separation strip 3 from being not firmly welded, and the opening at the welded part during the storage of the infusion bag causes the powder and liquid to be mixed in advance, which causes adverse effects on the subsequent medical process.
[0043] The embodiment also provides a process flow for producing the above-mentioned non-interface filling type powder-liquid double-chamber infusion bag:
[0044] 1. Film transmission: The multi-layer co-extrusion powder-liquid infusion film is loaded into the film roll cylinder of the full-automatic bag making and filling machine, and is conveyed to the weak welding station, the lettering station, and the peripheral heat sealing station through the film conveying mechanism.
[0045] 2. Weak welding: The weak welding device of the full-automatic bag making and filling machine is used for welding the weak welding separation strip 3 of the non-pipe mouth filling type powder-liquid double-chamber infusion bag, so that the non-pipe mouth filling type powder-liquid double-chamber infusion bag is divided into the liquid chamber 2 and the powder chamber 4 through the weak welding separation strip 3.
[0046] 3. Bag surface lettering: The drug label is printed on the surface of the liquid chamber 2 of the non-pipe mouth filling type powder-liquid double-chamber infusion bag.
[0047] 4. Heat transfer printing: The number corresponding to the clamp number is marked on the surface of the liquid chamber 2 of the non-pipe mouth filling type powder-liquid double-chamber infusion bag, so as to realize the tracking function of the clamp number.
[0048] 5. Bag body forming welding: The bag body of the non-pipe mouth filling type powder-liquid double-chamber infusion bag is formed by the bag body welding device of the full-automatic bag making and filling machine, and at the same time, an opening is reserved on the shoulder or the side of the bag body as the liquid filling port 5 for injection.
[0049] 6. Infusion tube welding: The infusion tube 1 with self-sealing property is welded at the top end of the non-pipe mouth filling type powder-liquid double-chamber infusion bag, so that the infusion tube 1 and the bag body of the non-pipe mouth filling type powder-liquid double-chamber infusion bag are combined and welded together.
[0050] 7. Positioning hole punching: The positioning hole punching is arranged on both sides of the tail of the non-pipe opening filling type powder-liquid double chamber infusion bag by the full-automatic bag making, filling and sealing machine punching station, so as to assist the positioning of the infusion bag adapter in the subsequent process.
[0051] 8. Bag body cutting: The non-pipe opening filling type powder-liquid double chamber infusion bag is cut into independent bag bodies by the cutting device of the full-automatic bag making, filling and sealing machine.
[0052] 9. Waste edge removal: The excess waste generated during the bag body forming welding and cutting is removed by the waste edge removal mechanical arm of the full-automatic bag making, filling and sealing machine.
[0053] 10. Bag body detection: The bag body signal detection signal is compared with the subsequent fixture detection signal by the bag body detection device of the full-automatic bag making, filling and sealing machine, so as to judge the integrity of the non-pipe opening filling type powder-liquid double chamber infusion bag, and reduce the outflow of defective products and the loss of materials.
[0054] 11. Liquid agent filling: The opening of the non-pipe opening filling type powder-liquid double chamber infusion bag body is opened by the bag opening device of the full-automatic bag making, filling and sealing machine, and the opening is used as the filling port for filling the solvent for injection into the liquid chamber 2.
[0055] 12. Sealing: The opening of the non-pipe opening filling type powder-liquid double chamber infusion bag which has completed the solvent for injection filling is heat sealed by the sealing device, and a sealing surface is formed at the opening of the infusion bag, so as to complete the final sealing of the non-pipe opening filling type powder-liquid double chamber infusion bag.
[0056] 13. Bag body leak detection: The liquid chamber of the non-pipe opening filling type powder-liquid double chamber infusion bag which has completed the final sealing is detected by the full-automatic high voltage leak detection device, and the products with loose sealing are identified by current leak detection and automatically removed, so as to prevent the outflow of defective products.
[0057] 14. Sterilization and drying: The non-pipe opening filling type powder-liquid double chamber infusion bag is sterilized and dried by the ventilation type sterilization dryer.
[0058] 15. Powder agent sub-packaging: After the powder-liquid double chamber infusion bag which has been sterilized and dried is cut and opened at the tail of the powder chamber 4 by the full-automatic powder agent sub-packaging machine, the sterile powder agent is filled into the powder chamber, and finally the powder chamber 4 is sealed by the tail sealing surface 6.
[0059] 16. Powder chamber lamp detection: The powder-liquid double chamber bag is subjected to lamp detection by the automatic lamp detection machine, and the unqualified products are removed, and the qualified products are transmitted to the next process.
[0060] 17. Aluminum film welding: The powder-liquid chamber edge is cut, especially the cutting part on both sides of the powder chamber 4 is cut, and then the aluminum film 7 is welded on the upper and lower sides of the powder chamber of the powder-liquid double chamber bag by the full-automatic aluminum film 7 welding machine.
[0061] While the preferred embodiments of the application have been described, those skilled in the art will note that various modifications and changes can be made thereto without departing from the spirit and scope of the application. Accordingly, it is intended that all such modifications and changes be included within the scope of the application. Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.
Claims
1. A non-interfaced filling type powder-liquid dual chamber infusion bag, characterized by, The bag body comprises a liquid chamber and a powder chamber separated by a weak welding separation strip; the liquid chamber is provided with an infusion tube at the end away from the powder chamber; the shoulder or side of the liquid chamber is provided with a liquid filling port communicating with the liquid chamber; the powder chamber comprises cutting parts on both sides; the cutting parts are provided with punching positioning holes, and the distance between the punching positioning holes on both sides of the powder chamber is greater than the distance between the edges of the liquid chamber.
2. The non-spigot filled powder and liquid dual chamber infusion bag as claimed in claim 1, wherein, The powder chamber is provided with a powder filling port at the end away from the liquid chamber; the powder filling port is provided with a tail sealing surface, and the powder filling port is sealed by the tail sealing surface.
3. The non-spigot filled powder-liquid dual chamber infusion bag according to claim 1 or 2, characterized in that, The powder chamber is provided with an aluminum film on the outside, and the aluminum film is provided with a lifting hole at the end away from the liquid chamber.
4. The non-spigot filled dual chamber powder-liquid bag according to claim 3, wherein, The infusion tube is welded with a one-time injection molded full-sealing infusion tube cover at the top.
5. The non-spigot filled dual chamber powder-liquid bag according to claim 3, wherein, The bag body is welded by a non-PVC multi-layer co-extrusion infusion mold.
6. The non-spigot filled dual chamber powder-liquid bag according to claim 3, wherein, The cutting parts are provided with at least two punching positioning holes.
7. The non-spigot filled dual chamber powder-liquid bag according to claim 3, wherein, The number of the weak welding separation strips is not less than two.
8. The non-spigot filled dual chamber powder-liquid bag according to claim 3, wherein, The liquid filling port is sealed by welding after liquid filling.