Hemodialysis concentrated solution packaging bag
By designing anti-drop and anti-accidental opening mechanisms on the hemodialysis concentrate packaging bag, the problems of dropping and accidental opening during carrying are solved, achieving safe and convenient carrying and use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN FUSHENG MEDICAL DEVICES CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-05-26
AI Technical Summary
When carrying the hemodialysis concentrate packaging bag for short distances within the hospital, it is easy for it to fall off and the cap to be accidentally opened, causing inconvenience.
The design incorporates anti-drop and anti-accidental opening mechanisms, including a wrist strap, elastic band, elastic element, and anti-accidental opening mechanism. The wrist strap restricts the packaging bag to the wrist position to prevent it from falling, while the elastic element and limiting groove prevent the lid from being accidentally opened.
It effectively prevents the packaging bag from falling off during transport, ensuring safety and cleanliness during transport, preventing leakage and contamination of the concentrate, and guaranteeing safety and convenience of use.
Smart Images

Figure CN224278174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hemodialysis packaging bag technology, and in particular to a hemodialysis concentrate packaging bag. Background Technology
[0002] In hemodialysis, the quality of the dialysate is one of the key factors affecting the treatment outcome. For ease of transport, the components of the dialysate are usually mixed to form a concentrate, which is then diluted back into normal dialysate upon arrival at the hospital. Currently, conventional hemodialysis concentrates include two forms: hemodialysis concentrate and dry powder concentrate. Hemodialysis concentrate is a liquid containing a high concentration of electrolytes; it is diluted with dialysis water according to a specified ratio before use, and its solute composition is determined by clinical needs. Dry powder concentrate is made by mixing one or more solid chemical substances in a certain proportion. It needs to be dissolved in dialysis water before use to form a concentrate, and its solute composition and ion concentration are determined by clinical needs. Currently, the dialysate used in dialysis is either hemodialysis A concentrate (packaged in upright bags) or hemodialysis B concentrate (packaged in upright bags).
[0003] However, in practical applications, there are still some unresolved issues. Here are some common problems with hemodialysis concentrate packaging bags: When carrying the bag short distances within the hospital, people usually hold the handle on the packaging bag to carry it to the place of use. However, if people do not hold it during the carrying process, it is easy for the bag to slip from their hands and fall to the ground. At the same time, the cap is easy to be accidentally opened during use, which is quite inconvenient. Utility Model Content
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0005] In view of the problems existing in the above and / or existing hemodialysis concentrate packaging bags, this utility model is proposed.
[0006] Therefore, the problem that this utility model aims to solve is how to address the issue of how to carry the product over short distances within a hospital. Typically, people hold the handle on the packaging bag to carry it to the point of use. However, if people do not hold it during the carrying process, the product is likely to slip from their hands and fall to the ground. Additionally, the lid is easily opened accidentally during use, which is quite inconvenient.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hemodialysis concentrate packaging bag, comprising: a vertical packaging bag, including a bag body and a nozzle, wherein the top of the bag body has an opening, the nozzle is heat-sealed to the opening, a handle is heat-sealed to the bag body, and an inner cover is provided on the nozzle; and an anti-accidental opening mechanism, including an outer cover, a first movable groove, and an elastic element, wherein the first movable groove is opened on the inner wall of the outer cover, the outer side of the inner cover is movably connected to the inner wall of the first movable groove, and the elastic element is disposed on the inner wall of the outer cover; and an anti-detachment mechanism, including a wristband and an elastic band, wherein the two ends of the elastic band are respectively sewn to the two ends of the wristband, and the wristband is formed into a wrist ring by the elastic band.
[0008] In a preferred embodiment of the hemodialysis concentrate packaging bag of this utility model, the elastic element includes a first concave seat, a second concave seat, and a spring. The first concave seat is fixed to the inner side of the outer cover, the second concave seat is fixed to the surface of the inner cover, and the two ends of the spring are located in the first concave seat and the second concave seat, respectively.
[0009] As a preferred embodiment of the hemodialysis concentrate packaging bag of this utility model, the elastic element further includes two rods fixed to the inner wall of the outer cover, and two baffles are fixedly provided on the surface of the inner cover.
[0010] As a preferred embodiment of the hemodialysis concentrate packaging bag of this utility model, the anti-detachment mechanism further includes a connecting rope, one end of which is fixed to one side of the handle, and the other end of which is fixed to one side of the wrist strap.
[0011] As a preferred embodiment of the hemodialysis concentrate packaging bag of this utility model, the anti-accidental opening mechanism further includes a limiting ring and a limiting groove. The limiting groove is formed on the inner wall of the outer cover, the limiting ring is fixedly sleeved on the inner cover, the outer side of the limiting ring is movably connected to the inner wall of the limiting groove, and the limiting groove is annular.
[0012] In a preferred embodiment of the hemodialysis concentrate packaging bag of this utility model, a sealing ring is fixedly provided on the top inner wall of the inner cover.
[0013] In a preferred embodiment of the hemodialysis concentrate packaging bag described in this utility model, a plastic sleeve is heat-sealed to the outside of the nozzle.
[0014] As a preferred embodiment of the hemodialysis concentrate packaging bag described in this utility model, a tear opening is provided on one side of the plastic sleeve.
[0015] As a preferred embodiment of the hemodialysis concentrate packaging bag of this utility model, the nozzle is provided with external threads, the inner wall of the inner cover is provided with internal threads, and the inner cover is threadedly connected to the nozzle.
[0016] As a preferred embodiment of the hemodialysis concentrate packaging bag of this utility model, the bag body is made of transparent plastic.
[0017] The beneficial effects of this utility model are as follows: When carrying the hemodialysis concentrate packaging bag over a short distance in a hospital, the user can put the anti-drop mechanism wristband on their wrist and hold the handle while carrying it. During the carrying process, even if the packaging bag accidentally falls off the hand, the wristband can still function to restrain the packaging bag at the wrist position, effectively preventing it from falling to the ground. This avoids problems such as damage to the packaging bag, leakage of concentrate, and contamination of the ground caused by falling, ensuring the safety and convenience of carrying the bag.
[0018] The plastic sleeve heat-sealed to the outside of the packaging bag's nozzle protects the outer and inner caps when the bag is not in use, preventing dust and impurities from entering the nozzle and cap, thus ensuring the cleanliness of the packaging bag. Furthermore, the plastic sleeve prevents unscrupulous vendors from recycling and reusing the packaging bag after use. Tearing open the plastic sleeve destroys its integrity, preventing the recycled bag from being disguised as an unused product, thus protecting consumer rights and medical safety.
[0019] Through the anti-accidental opening mechanism, the first movable groove on the inner wall of the outer cover is movably connected to the outer side of the inner cover, and the spring in the elastic element prevents the rod from contacting the baffle. In this state, when the outer cover is rotated, the inner cover will not be rotated, thus playing the role of preventing accidental opening. This effectively avoids the cover being accidentally opened due to accidental contact or other reasons when not in use, preventing the concentrate from being contaminated and ensuring the quality of the dialysate and the safety of its use. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a hemodialysis concentrate packaging bag without the plastic sleeve installed.
[0022] Figure 2 This is a front view structural diagram of a packaging bag for hemodialysis concentrate.
[0023] Figure 3 This is a partial structural diagram of a packaging bag for hemodialysis concentrate.
[0024] Figure 4 This is a cross-sectional schematic diagram of an anti-accidental opening mechanism for a packaging bag of hemodialysis concentrate.
[0025] In the diagram: 1. Vertical packaging bag; 11. Bag body; 12. Feed nozzle; 13. Anti-misopening mechanism; 131. Inner cover; 132. Moving groove; 133. Limiting groove; 134. Limiting ring; 135. Sealing ring; 136. Outer cover; 14. Handle; 2. Anti-detachment mechanism; 21. Connecting rope; 22. Wrist strap; 23. Elastic band; 3. Plastic sleeve; 31. Tear opening; 4. Elastic element; 41. Rod body; 42. Baffle; 43. First concave seat; 44. Second concave seat; 45. Spring. Detailed Implementation
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0029] Example 1, referring to Figures 1-4 This is the first embodiment of the present utility model. This embodiment provides a hemodialysis concentrate packaging bag, including a vertical packaging bag 1, including a bag body 11 and a nozzle 12. The top of the bag body 11 is provided with a bag opening, and the nozzle 12 is heat-sealed to the bag opening. A handle 14 is heat-sealed to the bag body 11, and an inner cover 131 is provided on the nozzle 12.
[0030] The anti-accidental opening mechanism 13 includes an outer cover 136, a first movable groove 132, and an elastic element 4. The first movable groove 132 is formed on the inner wall of the outer cover 136, and the outer side of the inner cover 131 is movably connected to the inner wall of the first movable groove 132. The elastic element 4 is disposed on the inner wall of the outer cover 136.
[0031] The anti-slip mechanism 2 includes a wristband 22 and an elastic band 23. The two ends of the elastic band 23 are sewn to the two ends of the wristband 22 respectively, and the wristband 22 is joined together with the elastic band 23 to form a wrist ring.
[0032] With the anti-detachment mechanism 2, even if the packaging bag accidentally falls out of your hand during carrying, the wristband can still function to restrict the packaging bag to the wrist position, effectively preventing it from falling to the ground. The anti-accidental opening mechanism 13 plays a role in preventing accidental opening, effectively avoiding accidental opening of the cap due to accidental touch or other reasons when not in use, preventing contamination of the concentrate, and ensuring the quality of the dialysate and the safety of its use.
[0033] Specifically, the elastic element 4 includes a first concave seat 43, a second concave seat 44, and a spring 45. The first concave seat 43 is fixed to the inner side of the outer cover 136, the second concave seat 44 is fixed to the surface of the inner cover 131, and the two ends of the spring 45 are located in the first concave seat 43 and the second concave seat 44, respectively.
[0034] The first movable groove 132 on the inner wall of the outer cover 136 is movably connected to the outer side of the inner cover 131, and the spring 45 in the elastic member 4 prevents the rod 41 from contacting the baffle 42.
[0035] Specifically, the elastic element 4 also includes two rods 41 fixed to the inner wall of the outer cover 136, and two baffles 42 are fixedly provided on the surface of the inner cover 131.
[0036] Hold the outer cover 136 with your hand and press it towards the inner cover 131. The rod 41 moves to one side of the inner cover 131. Rotate the outer cover 136. The outer cover 136 drives the rod 41 to rotate. Through the blocking of the baffle 42, the inner cover 131 is driven to rotate.
[0037] Specifically, the anti-slip mechanism 2 also includes a connecting rope 21, one end of which is fixed to one side of the handle 14, and the other end of which is fixed to one side of the wristband 22.
[0038] The wristband can be fixed to the handle 14 by connecting rope 21.
[0039] Specifically, the anti-accidental opening mechanism 13 also includes a limiting ring 134 and a limiting groove 133. The limiting groove 133 is formed on the inner wall of the outer cover 136, and the limiting ring 134 is fixedly sleeved on the inner cover 131. The outer side of the limiting ring 134 is movably connected to the inner wall of the limiting groove 133, and the limiting groove 133 is annular.
[0040] The limiting ring 134 and the limiting groove 133 can limit the outer cover 136 to prevent the inner cover 131 and the outer cover 136 from separating.
[0041] The working principles of this section are all existing technologies, which are clearly understood by those skilled in the art, and will not be elaborated here.
[0042] Example 2, refer to Figures 1-4 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0043] Specifically, a sealing ring 135 is fixedly installed on the top inner wall of the inner cover 131.
[0044] The sealing ring 135 can improve the sealing between the inner cover 131 and the nozzle 12.
[0045] Specifically, the outer side of the nozzle 12 is heat-sealed with a plastic sleeve 3.
[0046] The plastic sleeve 3 can cover the outer cover 136 and inner cover 131 when the packaging bag is not in use. It also prevents the packaging bag from being recycled and reused by malicious vendors after use (by tearing open the plastic sleeve 3, which would damage its integrity). The material of the plastic sleeve 3 can be selected according to actual needs.
[0047] Specifically, a tear 31 is provided on one side of the plastic sleeve 3.
[0048] The tear slit 31 allows the plastic sleeve 3 to be torn open.
[0049] Specifically, the nozzle 12 has external threads, and the inner wall of the inner cover 131 has internal threads. The inner cover 131 is threadedly connected to the nozzle 12.
[0050] The connection between the inner cover 131 and the nozzle 12 can be facilitated by the external and internal threads.
[0051] Specifically, the bag body 11 is made of transparent plastic.
[0052] The transparent plastic bag 11 makes it easy to observe the height of the dialysate level.
[0053] When carrying the bag for short distances within the hospital, put the wristband on your wrist and hold the handle 14 to carry it. If the bag comes off your hand during the carrying process, the wristband will keep the bag in place on your wrist, making it less likely to fall to the ground.
[0054] Tear open the plastic sleeve 3 by hand (the plastic sleeve 3 can cover the outer cover 136 and inner cover 131 when the packaging bag is not in use, and also prevents the packaging bag from being recycled and reused by malicious vendors after use. Tear open the plastic sleeve 3 and destroy its integrity).
[0055] Due to the presence of the anti-accidental opening mechanism 13, it needs to be opened in a specific manner. The first moving groove 132 on the inner wall of the outer cover 136 is movably connected to the outer side of the inner cover 131. The spring 45 in the elastic element 4 prevents the rod 41 from contacting the baffle 42. When the outer cover 136 is rotated, the inner cover 131 will not be rotated, thus playing the role of preventing accidental opening.
[0056] When it is necessary to open the inner cover 131, hold the outer cover 136 with your hand and press it towards the inner cover 131 to compress the springs 45 in the first concave seat 43 and the second concave seat 44. At this time, the rod 41 moves to one side of the inner cover 131, rotate the outer cover 136, and the outer cover 136 drives the rod 41 to rotate. Through the resistance of the baffle 42, the inner cover 131 is rotated (rotate the inner cover 131 in the direction of the thread rotation). Unscrew the inner cover 131 off the nozzle 12. Finally, insert the dialysis machine suction tube into the bag body 11 through the nozzle 12. During the dialysis process, the height of the dialysis fluid level can be observed through the transparent bag body 11. (In the process of producing the hemodialysis concentrate packaging bag, the concentrate can be filled first, and then the nozzle 12 can be heat-sealed (using a heat sealer). Alternatively, the nozzle 12 can be heat-sealed first, the filler can be filled from the nozzle 12, and then the plastic sleeve 3 can be heat-sealed onto the nozzle 12.)
[0057] The nozzle 12 is made of plastic to facilitate heat sealing. The bag body 11 is preferably made of transparent polyurethane or polyvinylidene fluoride. The specific material can be selected according to actual needs.
[0058] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A packaging bag for hemodialysis concentrate, characterized in that: include, A vertical packaging bag (1) includes a bag body (11) and a nozzle (12). The top of the bag body (11) has an opening, and the nozzle (12) is heat-sealed to the opening. A handle (14) is heat-sealed onto the bag body (11), and an inner cover (131) is provided on the nozzle (12). The anti-accidental opening mechanism (13) includes an outer cover (136), a first movable groove (132), and an elastic element (4). The first movable groove (132) is formed on the inner wall of the outer cover (136), and the outer side of the inner cover (131) is movably connected to the inner wall of the first movable groove (132). The elastic element (4) is disposed on the inner wall of the outer cover (136). The anti-slip mechanism (2) includes a wristband (22) and an elastic band (23). The two ends of the elastic band (23) are sewn to the two ends of the wristband (22), and the wristband (22) is formed into a wrist ring by the elastic band (23).
2. The hemodialysis concentrate packaging bag as described in claim 1, characterized in that: The elastic element (4) includes a first concave seat (43), a second concave seat (44), and a spring (45). The first concave seat (43) is fixed to the inner side of the outer cover (136), the second concave seat (44) is fixed to the surface of the inner cover (131), and the two ends of the spring (45) are located in the first concave seat (43) and the second concave seat (44), respectively.
3. The hemodialysis concentrate packaging bag as described in claim 2, characterized in that: The elastic element (4) also includes two rods (41) fixed to the inner wall of the outer cover (136), and two baffles (42) are fixedly provided on the surface of the inner cover (131).
4. A packaging bag for hemodialysis concentrate as described in claim 1, characterized in that: The anti-slip mechanism (2) also includes a connecting rope (21), one end of which is fixed to one side of the handle (14), and the other end of which is fixed to one side of the wrist strap (22).
5. A packaging bag for hemodialysis concentrate as described in claim 1, characterized in that: The anti-misoperation mechanism (13) further includes a limiting ring (134) and a limiting groove (133). The limiting groove (133) is opened on the inner wall of the outer cover (136). The limiting ring (134) is fixedly sleeved on the inner cover (131). The outer side of the limiting ring (134) is movably connected to the inner wall of the limiting groove (133). The limiting groove (133) is annular.
6. A packaging bag for hemodialysis concentrate as described in claim 5, characterized in that: A sealing ring (135) is fixedly provided on the top inner wall of the inner cover (131).
7. A packaging bag for hemodialysis concentrate as described in claim 6, characterized in that: A plastic sleeve (3) is heat-sealed to the outside of the nozzle (12).
8. A packaging bag for hemodialysis concentrate as described in claim 7, characterized in that: The plastic sleeve (3) has a tear (31) on one side.
9. A packaging bag for hemodialysis concentrate as described in claim 1, characterized in that: The nozzle (12) is provided with external threads, and the inner wall of the inner cover (131) is provided with internal threads. The inner cover (131) is threadedly connected to the nozzle (12).
10. A packaging bag for hemodialysis concentrate as described in claim 1, characterized in that: The bag body (11) is made of transparent plastic.