Machine joint for dialysis dry powder bag
By designing a machine-compatible connector for the dialysis dry powder bag, the problems of difficult hose installation and the entry of external impurities were solved, achieving convenient installation and pollution prevention.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-20
- Publication Date
- 2026-04-03
AI Technical Summary
The existing dialysis dry powder bags have cumbersome tubing installation and are prone to the entry of external impurities, resulting in high production and processing difficulty and a high risk of contamination.
Design a machine connector for dialysis dry powder bags, including a connector head, connecting tube, liquid inlet channel, liquid outlet channel, protective cap and filter element. The internal space is separated by a partition, and liquid inlet and liquid outlet are provided. An L-shaped bend and a fixing ring are used, and the channel opening is sealed with a protective cap to prevent impurities from entering.
This technology enables convenient installation of hoses, reduces manufacturing and processing difficulties, effectively prevents external impurities from entering, and improves the performance of the connector.
Smart Images

Figure CN224070964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dialysis equipment technology, and in particular to a machine connector for dialysis dry powder bags. Background Technology
[0002] In hemodialysis, hemodialysis concentrate is a crucial medical consumable. Currently available hemodialysis concentrates mainly include hemodialysis concentrate and hemodialysis dry powder. To address the contamination issue of the concentrate during dialysis, online-connected dry powder bags are preferred. The compatibility between the online dry powder bag and the corresponding dialysis machine is extremely important. For example, Chinese utility model patent ZL201921680608.8 discloses a fluid preparation connector for dialysis, including a first mounting port and a second mounting port located on both sides of the connector head. The first mounting port is connected to a first receiving port via a first flow channel, and the second mounting port is connected to a second receiving port via a second flow channel. A flexible tube is installed in the second receiving port for insertion into a connection port on the side wall of the preparation container and extending into the bottom of the preparation container. The first receiving port is connected to the connection port. The connector head includes a retaining ring, which is sealed and welded to the edge of the connection port of the preparation container.
[0003] The above-mentioned patent has at least the following problems: First, the tubing needs to be inserted inward and connected to the second connector during installation. Since the hollow cylinder is set at an angle, the installation of the tubing is very troublesome. Second, the first and second installation ports are not sealed, and external impurities can easily enter the dialysis dry powder bag. Utility Model Content
[0004] This invention addresses the shortcomings of existing technologies by developing a machine connector for dialysis dry powder bags. This invention not only facilitates the installation of the hose and reduces the overall manufacturing difficulty of the connector, but also prevents external impurities from entering the dialysis dry powder bag, effectively improving the performance of the connector.
[0005] The technical solution of this utility model to solve the technical problem is as follows: a machine connector for dialysis dry powder bags, including a connector head and a connecting tube. The connector head is set at the first end of the connecting tube, and a connecting tube is provided at the bottom of the connector head. The bottom of the connecting tube is set at the second end of the connecting tube. A flexible tube is detachably provided at the bottom of the connecting tube. An inlet channel and an outlet channel are respectively provided on both sides of the connector head. A channel opening is provided at the bottom of both the inlet channel and the outlet channel, and a protective cap is detachably provided on the channel opening.
[0006] As an optimization, the connector has a vertically installed partition inside, with the inlet and outlet channels located on opposite sides of the partition. By installing the partition, the internal space of the connector can be divided into two parts, which are respectively connected to the inlet and outlet channels.
[0007] As an optimization, the bottom of the connector is also provided with a liquid inlet, which is located on both sides of the partition. By providing the liquid inlet, a complete liquid inlet pipeline can be formed.
[0008] As an optimization, a filter element is installed inside the liquid inlet. By installing the filter element, filtration can be performed during liquid injection.
[0009] As an optimization, the connecting tube is a bent tube, and a retaining ring is provided at the second end of the connecting tube. Several sets of protrusions are evenly distributed on the first side of the retaining ring, and a handle is rotatably provided on the second side of the retaining ring. By setting the retaining ring, it is possible to perform face-to-face sealing welding with the dialysis dry powder bag. The protrusions can increase the contact area and strength of the welding. By setting the handle, it is convenient to lift and handle during use.
[0010] As an optimization, the protective cap is connected to both the inlet and outlet channels via connecting strips. These connecting strips prevent the protective cap from being lost.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] By incorporating a connector, inlet channel, outlet channel, and channel openings, this device can connect to a hemodialysis machine for convenient fluid intake and output. The connecting tube allows connection to the dialysis powder bag, facilitating fluid injection via the inlet channel. The connecting pipe simplifies hose installation, eliminating the need to insert the hose into the connecting tube, thus reducing installation difficulty and overall manufacturing complexity. The hose, in conjunction with the outlet channel, allows for the extraction of the pre-mixed dialysis solution from the dialysis powder bag. A protective cap seals both channel openings after dialysis powder filling, preventing the entry of external impurities. This invention not only facilitates hose installation and reduces overall manufacturing complexity but also prevents external impurities from entering the dialysis powder bag, effectively improving the device's performance. Attached Figure Description
[0013] Figure 1 This is a perspective view of the first embodiment of the present utility model.
[0014] Figure 2 This is a perspective view of the second embodiment of the present utility model.
[0015] In the diagram: 1. Connector; 2. Connecting pipe; 3. Connecting pipe; 4. Hose; 5. Inlet channel; 6. Outlet channel; 7. Channel opening; 8. Protective cap; 9. Partition; 10. Connecting strip; 11. Fixing ring; 12. Handle. Detailed Implementation
[0016] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.
[0017] Example 1
[0018] Figure 1 As one embodiment of this utility model, such as Figure 1 As shown, a machine connector for a dialysis dry powder bag includes a connector 1 and a connecting tube 2. The connector 1 is located at the first end of the connecting tube 2, and a connecting tube 3 is provided at the bottom of the connector 1. The connector 1 and the connecting tube 3 are integrally formed. The bottom of the connecting tube 3 is located at the second end of the connecting tube 2. A flexible tube 4 is detachably provided at the bottom of the connecting tube 3. An inlet channel 5 and an outlet channel 6 are respectively provided on both sides of the connector 1. A channel opening 7 is provided at the bottom of both the inlet channel 5 and the outlet channel 6. A protective cap 8 is detachably provided on the channel opening 7.
[0019] By setting up connector 1, inlet channel 5, outlet channel 6, and channel opening 7, it can be connected to a hemodialysis machine for convenient inlet and outlet of fluid. By setting up connecting tube 2, it can be connected to the dialysis dry powder bag and used in conjunction with inlet channel 5 for fluid injection. By setting up connecting tube 3, it is easy to install hose 4 without having to insert hose 4 into connecting tube 2, which reduces the difficulty of hose 4 installation and helps to reduce the overall manufacturing difficulty of the connector. By setting up hose 4, it can be used in conjunction with outlet channel 6 to draw out the mixed dialysis fluid in the dialysis dry powder bag. By setting up protective cap 8, it can seal the two sets of channel openings 7 after the dialysis dry powder is filled to prevent the entry of external impurities.
[0020] The connector 1 has a vertically installed partition 9 inside, with an inlet channel 5 and an outlet channel 6 located on both sides of the partition 9. By installing the partition 9, the internal space of the connector 1 can be divided into two parts, which are respectively connected to the inlet channel 5 and the outlet channel 6.
[0021] The bottom of connector 1 is also provided with a liquid inlet. The liquid inlet and connecting pipe 3 are respectively located on both sides of the partition 9. The liquid inlet is used to connect the connecting pipe 2 and the liquid inlet channel 5, and the connecting pipe 3 is used to connect the hose 4 and the liquid outlet channel 6. By providing the liquid inlet, a complete liquid inlet pipeline can be formed.
[0022] A filter element is installed inside the liquid inlet. By installing the filter element, filtration can be performed during liquid injection.
[0023] The connecting pipe 2 is an "L"-shaped bend. The second end of the connecting pipe 2 is provided with a fixing ring 11. Several sets of protrusions are evenly distributed on the first side of the fixing ring 11, and a handle 12 is rotatably provided on the second side of the fixing ring 11. By setting the fixing ring 11, it is possible to perform face-to-face sealing welding with the dialysis dry powder bag. The protrusions can increase the contact area and strength of the welding. By setting the handle 12, it is convenient to lift and handle during use.
[0024] Example 2
[0025] Figure 2In another embodiment of this utility model, the difference from embodiment 1 is that the two sets of protective caps 8 are respectively connected to the inlet channel 5 and the outlet channel 6 via connecting strips 10. By providing connecting strips 10, the protective caps 8 can be prevented from being lost.
[0026] During use, the top of connector 1, as well as the inlet channel 5 and outlet channel 6, are heat-sealed with a film. The fixing ring 11 is welded face-to-face to the side wall of the dialysis powder bag. Then, powder is filled through the top opening of the dialysis powder bag, and the bag is sealed after filling. The protective cap 8 prevents external impurities from entering the bag. During dialysis, the operator opens both sets of protective caps 8, holds the handle 12, and connects the two sets of channel openings 7 to the hemodialysis machine. Dialysis fluid enters the dialysis powder bag through the inlet channel 5, inlet hole, and connecting tube 2 to mix with the dialysis powder. The mixed dialysis fluid enters the hemodialysis machine through the hose 4, connecting tube 3, and outlet channel 6. This utility model not only facilitates the installation of the hose 4 and reduces the overall manufacturing difficulty of the connector, but also prevents external impurities from entering the dialysis powder bag, effectively improving the performance of the connector.
[0027] The descriptions of the orientation or relative positional relationships of the structure in this utility model, such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer", are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure 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 utility model.
Claims
1. A machine connector for a dialysis dry powder bag, comprising a connector (1) and a connecting tube (2), wherein the connector (1) is disposed at the first end of the connecting tube (2), characterized in that: The bottom of the connector (1) is provided with a connecting pipe (3), the bottom of the connecting pipe (3) is located at the second end of the connecting pipe (2), the bottom of the connecting pipe (3) is provided with a flexible hose (4), the two sides of the connector (1) are respectively provided with an inlet channel (5) and an outlet channel (6), the bottom of the inlet channel (5) and the outlet channel (6) are provided with a channel opening (7), and a protective cap (8) is detachably provided on the channel opening (7).
2. The machine connector for the dialysis dry powder bag according to claim 1, characterized in that: The connector (1) has a vertical partition (9) inside, and the liquid inlet channel (5) and the liquid outlet channel (6) are located on both sides of the partition (9).
3. The machine connector for the dialysis dry powder bag according to claim 2, characterized in that: The bottom of the connector (1) is also provided with a liquid inlet hole, and the liquid inlet hole and the connecting pipe (3) are respectively provided on both sides of the partition (9).
4. The machine connector for the dialysis dry powder bag according to claim 3, characterized in that: A filter element is installed inside the liquid inlet.
5. The machine connector for the dialysis dry powder bag according to claim 1, characterized in that: The connecting pipe (2) is a bent pipe. The second end of the connecting pipe (2) is provided with a fixing ring (11). Several sets of protrusions are evenly provided on the first side of the fixing ring (11). A handle (12) is provided on the second side of the fixing ring (11).
6. The machine connector for the dialysis dry powder bag according to any one of claims 1 to 5, characterized in that: The protective cap (8) is connected to the liquid inlet channel (5) and the liquid outlet channel (6) respectively via the connecting strip (10).
Citation Information
Patent Citations
Fluid preparation connector for dialysis
CN211050425U