A hemodialysis concentrate packaging bag and a method for preparing dialysate

Abstract

A hemodialysis concentrate packaging bag and a hemodialysis solution preparation method. The packaging bag comprises a flexible bag body in a cylindrical bottle type design, with a specific shape at the bottom, a cylindrical bottle type when full of liquid, and foldable and curlable when empty. The upper end of the bag body has a bag mouth with a cover, the cover is provided with a liquid adding port, a suction pipe port and a connecting piece, the connecting piece cooperates with a supporting device to keep the cover horizontal, and the bag body is provided with scale lines. In some embodiments, the cover is also provided with a medicine adding port, a circulating pipe connecting structure, an air filter device, the roller has a locking piece, and the suction pipe and the liquid adding port have special structures. The preparation method comprises placing the packaging bag on the supporting device, dissolving the concentrate by adding water through the liquid adding port, installing the circulating pipe to circulate and stir, and adding medicine through the medicine adding port. The present application has a reasonable structure design, is easy to operate, can effectively prepare hemodialysis solution, meets the needs of dialysis treatment, improves the convenience and quality of dialysis solution preparation, and ensures the effect of dialysis treatment.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a packaging bag for hemodialysis concentrate. Background Technology

[0002] Currently, all existing hemodialysis products on the market are packaged in plastic buckets, requiring the use of a dedicated hemodialysis machine to complete the preparation process. Furthermore, the containers used are all rigid plastic buckets, which are easily damaged during transportation. In addition, the weight of the buckets has a certain impact on the mobility of patients.

[0003] However, if dialysis powder or dialysis concentrate is used, it is still necessary to transfer the dialysis powder or concentrate to a new container and dilute it with water, which can cause problems such as easy contamination and inconvenience in use. The new container will also increase costs.

[0004] Hemodialysis dry powder A is commonly used for sodium bicarbonate dialysis treatment of patients with acute or chronic renal failure or acute dialysisable poisoning. It is frequently used in medical hemodialysis treatment and is usually stored in sealed packaging bags.

[0005] Online B-powder dialysis involves storing B-powder in a special container and installing it on the dialysis machine to prepare a saturated sodium bicarbonate solution online. Its advantages include ease of use (no manual solution preparation required), convenient transportation and storage, and prevention of bacterial growth. However, because A-powder has a more complex composition and various substances dissolve at different rates, using the same online treatment mode as B-powder would prevent the formation of a stable concentrated solution throughout the treatment process, compromising patient safety.

[0006] CN101181649A discloses a method of connecting a concentrate to a dialysis machine to produce the required dialysis solution, which will inevitably increase the cost of the dialysis machine, as the dialysis machine requires corresponding water addition and stirring. Summary of the Invention

[0007] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a packaging bag for hemodialysis concentrate to achieve rapid dissolution.

[0008] The present invention also proposes a method for preparing hemodialysis solution for immediate use, using the aforementioned hemodialysis concentrate packaging bag.

[0009] This invention provides a packaging bag for hemodialysis concentrate, containing hemodialysis concentrate, including a flexible bag body. The flexible bag body is designed as a cylindrical bottle, with a recessed circular, conical, or partially recessed cylindrical, conical, or square bag bottom. When filled with liquid, the packaging bag is cylindrical; when empty, it is foldable and rollable. The upper end of the flexible bag body has an opening with a cap. The cap has a dispensing port for directly adding water to dissolve the concentrate and a straw opening. The straw opening has a straw, the bottom of which extends to the bottom of the bag body. The cap also has a connector that connects to a support device to fix the cap in a horizontal position. The support device matches the shape of the packaging bag. The connector includes at least three protrusions evenly distributed around the cap. The ends of the protrusions have rollers that can roll freely on the support arm of the support device and the protrusions. The flexible bag body has graduation lines.

[0010] Furthermore, the lid is also provided with a medicine addition port.

[0011] Furthermore, a circulation tube is provided, with one end connected to the suction port and the other end connected to the liquid inlet, and the circulation tube is externally connected to a circulation power device.

[0012] Furthermore, the cover is also equipped with an air filter.

[0013] Furthermore, the hemodialysis concentrate is hemodialysis dry powder A.

[0014] Furthermore, the lower end of the liquid inlet adopts an inclined nozzle structure, which forms a vortex through liquid jetting.

[0015] Furthermore, the end of the straw adopts a porous structure or is equipped with a filter.

[0016] Furthermore, the roller has a locking element that can lock the roller's rotation.

[0017] This invention also provides a method for preparing hemodialysis solution for immediate use, using the hemodialysis concentrate packaging bag as described in claims 1-8, comprising the following steps: S1: placing the hemodialysis concentrate packaging bag containing the hemodialysis concentrate on a support device matching the shape of the packaging bag; S2: adding purified water through the liquid inlet to the required standard volume, and vibrating; S3: installing a circulation tube, and circulating and stirring the prepared hemodialysis solution through an external circulation power device connected to the circulation tube.

[0018] Furthermore, step S2 may further include the addition of a drug.

[0019] The technical solution of the present invention has the following advantages:

[0020] This invention uses a flexible bag body, and the product appearance is foldable, reducing transportation costs, saving transportation space, reducing transportation damage, and improving transportation efficiency; it is malleable, increasing product utilization rate, increasing the utilization rate of dialysis concentrate by about 10%, saving energy and reducing waste; it replaces the existing barrelled dialysis solution, solving the problems of barrelled dialysis solution requiring a large amount of medical plastic particles to make barrels and the waste disposal of used barrels; the product has flexible filling volume, and can be made into multiple specifications according to clinical needs to meet clinical requirements, reducing waste and pollution. Furthermore, water and solution preparation are completed directly within the bag, and the dialysis powder dissolution is completed within the original bag, avoiding contamination during concentrate transfer. It allows for immediate use, reducing electrolyte decomposition during storage and transportation and ensuring dialysis quality. The cylindrical bottle design facilitates stirring and vibration mixing of the dialysis solution after water addition. Combined with the graduation marks, it allows for easy addition of a fixed amount of water to meet standard dissolution requirements, eliminating the need for complex equipment such as flow meters. The bottom is a sunken circular, conical, or partially sunken cylindrical, conical, or square bag (1-5cm), allowing for maximum utilization of the dialysis solution via a pipette, avoiding waste. The cap is reusable and features a medication dispensing port to meet personalized dialysis needs, allowing medication to be added according to the patient's actual condition. The cap's connector, via rollers and a support arm, automatically levels the cap, ensuring that the packaged bag remains cylindrical after water is added. Accurate quantitative dissolution via the graduation marks eliminates the need for additional testing methods. This invention can solve the problems of difficult and costly transportation in remote areas. It can also be conveniently used for emergency and first aid patients. Standard dialysis fluid can be formed through manual operation. When used in hospitals, it can be combined with other means such as vibration and heating to quickly dissolve and mix the fluid. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the hemodialysis concentrate packaging bag provided in an embodiment of the present invention;

[0024] Figure 2 This is a top view of the lid of a hemodialysis concentrate packaging bag provided in an embodiment of the present invention;

[0025] Figure 3This is a schematic diagram of the circulation tube structure of the hemodialysis concentrate packaging bag provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the connector provided in an embodiment of the present invention.

[0027] Figure label:

[0028] 1. Flexible bag body; 11. Bag opening; 12. Liquid filling port; 13. Straw opening; 14. Air filter device; 15. Medicine filling port; 16. Scale line; 17. Circulation tube; 18. Circulation power device; 2. Cap; 21. Extension part; 22. Roller; 3. Straw; 4. Support device; 41. Support arm. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] This invention provides a packaging bag for hemodialysis concentrate and a method for preparing hemodialysis solution for immediate use. The features and implementation methods of each aspect are described in detail below.

[0031] Design and structure of packaging bags for hemodialysis concentrates

[0032] Flexible Bag: This packaging bag is made of flexible material and has an overall cylindrical bottle shape. The bottom is a recessed round, conical, or partially recessed cylindrical, conical, or square bag (1-5cm). When filled with liquid, the packaging bag presents a complete cylindrical bottle shape, like a stable container; when empty, the flexible bag can be easily folded and rolled up, facilitating storage and transportation and saving a lot of space.

[0033] Bag opening and cap: The flexible bag body has a bag opening 11 at the upper end, and a cap 2 is installed on the bag opening. The cap has multiple functional ports for operation and assisting in the preparation and use of dialysate.

[0034] Liquid filling port: The cap 2 is equipped with a liquid filling port 12, which is used to directly add purified water into the bag to dissolve the hemodialysis concentrate in the bag.

[0035] Straw opening and straw: A straw 3 is connected to the straw opening 13 on the cap. The bottom end of this straw extends all the way to the bottom of the bag, ensuring that it can reach the bottom layer of the liquid inside the bag, facilitating thorough mixing and extraction of the dialysate.

[0036] Connector and Support Device: The lid 2 is also equipped with a connector, which includes at least three protrusions 21 evenly distributed around the lid. Each protrusion has a roller 22 at its end, which can roll freely on the support arm 41 of the matching support device 4. The support device is designed to match the shape of the packaging bag. Through the cooperation of the connector and the support device, the lid can be fixed and kept in a horizontal position, ensuring the stability of the packaging bag during operation.

[0037] Graduation lines: The flexible bag 1 is clearly marked with graduation lines 16, which are used to accurately measure the volume of liquid inside the bag, making it convenient to prepare dialysis solution according to the standard dosage.

[0038] Additional functional component design

[0039] Drug addition port: An additional drug addition port 15 is provided on the cap 2. This design allows additional drugs to be added as needed during the preparation of dialysis solution, increasing the flexibility and adaptability of the packaging bag and meeting the treatment needs of more special patients.

[0040] Circulation tube and circulation power device: A circulation tube 17 is provided, one end of which is connected to the suction port 13, and the other end is connected to the liquid inlet 12. The circulation tube is connected to a circulation power device 18, which enables the dialysis fluid to circulate within the packaging bag. Through continuous stirring and mixing, the uniformity and stability of the dialysis fluid are further improved, ensuring the quality of the dialysis fluid and the therapeutic effect.

[0041] Air filtration device: The cover 2 is also equipped with an air filtration device 14, which can effectively filter impurities and microorganisms in the outside air, preventing external pollutants from entering the packaging bag during operation, thereby ensuring the purity and safety of the dialysis solution.

[0042] Roller locking mechanism: The roller 22 is designed with a locking mechanism. When it is necessary to fix the position of the packaging bag, the locking mechanism can be used to lock the roller to prevent it from rolling and ensure the stability of the packaging bag in specific operation.

[0043] Types of hemodialysis concentrates

[0044] The hemodialysis concentrate packaged in this hemodialysis concentrate bag is preferably hemodialysis dry powder A.

[0045] Preparation method of freshly prepared hemodialysis solution

[0046] Placing the packaging bag: First, place the hemodialysis concentrate packaging bag containing the hemodialysis concentrate stably on the support device 4 that matches the shape of the packaging bag. Through the cooperation of the rollers of the connector and the support arm, the lid is automatically kept in a horizontal position to ensure the stability of the packaging bag.

[0047] Dissolving with water: Add purified water through the filling port 12 on the packaging bag cap. The required standard volume can be precisely marked using the graduation lines on the bag. During the water addition process, to help the concentrate dissolve quickly and completely, the packaging bag can be vibrated. The vibration will generate power to promote rapid mixing of the concentrate and water, improving preparation efficiency.

[0048] Circulation and Stirring: After the dialysate is initially prepared, install the circulation tube 17 and connect it to the external circulation power device 18. The circulation power device causes the dialysate to circulate within the packaging bag, achieving the purpose of stirring and further fully mixing the components in the dialysate, ensuring the homogeneity of the dialysate, thereby improving the quality and effectiveness of dialysis treatment.

[0049] Optional medication addition: In step S2, medication can be added further through the medication inlet 15 on the cap, based on the patient's specific condition and treatment needs. This step allows for flexible, personalized adjustments to the dialysis fluid, making it more suitable for the patient's individualized treatment plan and improving the targetedness and effectiveness of the treatment.

[0050] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0051] Of course, the above are preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the basic principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A hemodialysis concentrate package bag containing a hemodialysis concentrate, characterized in that, The application relates to a flexible bag (1) in a cylindrical bottle type design, which is a sunken round type, a conical type or a partially sunken 1-5cm cylindrical, conical or square type bag; when the bag is filled with liquid, the bag is in a cylindrical bottle type, and when the bag is empty, the bag is in a foldable and curled type; the upper end of the flexible bag (1) is provided with a bag opening (11), the bag opening (11) is provided with a cover (2), the cover (2) is provided with a liquid adding opening (12) and a straw opening (13) for directly adding water to dissolve a concentrate, the straw opening (13) is provided with a straw (3), the bottom end of the straw (3) is extended into the bottom of the bag, the cover (2) is further provided with a connecting piece, the connecting piece is connected with a supporting device (4), the cover (2) is fixed and kept in a horizontal state, and the supporting device (4) is matched with the shape of the bag; the connecting piece comprises at least three extending parts (21) which are uniformly distributed around the cover (2), the extending parts (21) are provided with rollers (22) at the ends, the rollers (22) can freely roll on supporting arms (41) of the supporting device (4) matched with the extending parts (21), and the flexible bag (1) is provided with scale lines (16); a circulating pipe (17) is arranged, one end of the circulating pipe (17) is connected with the straw opening (13), the other end of the circulating pipe (17) is connected with the liquid adding opening (12), and the circulating pipe (17) is connected with a circulating power device (18) outside; the roller (22) is provided with a locking piece which can lock the rolling of the roller (22).

2. The hemodialysis concentrate packet bag of claim 1, wherein, the cover (2) is further provided with a medicine adding opening (15).

3. The hemodialysis concentrate packet bag of claim 1, wherein, the cover (2) is further provided with an air filtering device (14).

4. The hemodialysis concentrate packet bag of claim 1, wherein, the hemodialysis concentrate is a hemodialysis dry powder A powder.

5. The hemodialysis concentrate packet bag of claim 3, wherein, the lower end of the liquid adding opening (12) adopts an inclined nozzle structure, and a vortex is formed through liquid injection.

6. The hemodialysis concentrate packet bag of claim 3, wherein, the end of the straw (3) adopts a porous structure or is provided with a filter.

7. A method for preparing a ready-to-use hemodialysis solution, using a hemodialysis concentrate package according to any one of claims 1 to 6, characterized in that, The application further discloses a hemodialysis concentrate preparation method comprising the following steps: S1: placing a hemodialysis concentrate bag containing a hemodialysis concentrate on a supporting device (4) matched with the shape of the bag; S2: adding pure water through the liquid adding opening (12), adding to a required standard amount, and vibrating; S3: installing a circulating pipe (17), and circulating and stirring the prepared dialysis liquid through a circulating power device (18) connected with the circulating pipe (17) outside.

8. The method of preparing dialysis solutions of claim 7, wherein the step S2 further comprises further adding medicine.

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