Dry powder device for dialysis

Abstract

The utility model relates to the technical field of dialysis, and discloses a dry powder device for dialysis, which comprises a box body assembly, a top cover and an interface assembly, a storage cavity used for preparing dialysate is formed in the box body assembly, a first opening is formed in the top of the storage cavity, and a second opening and a third opening are formed in the bottom of the storage cavity; the top cover is arranged above the box body assembly and is used for covering the first opening; the connector assembly is arranged below the box body assembly and comprises a base, a liquid inlet pipe and a liquid outlet pipe, one end of the base is connected with the bottom of the box body assembly, the other end of the base is connected with the liquid inlet pipe and the liquid outlet pipe, the liquid inlet pipe penetrates through the base to be communicated with the second opening, and the liquid outlet pipe penetrates through the base to be communicated with the third opening; wherein one end of the liquid inlet pipe is externally connected with a liquid injection part, liquid enters the storage cavity through the second opening and makes contact with dry powder to be used for dissolving the dry powder, and the dissolved dry powder flows to the dialysis machine from the liquid outlet pipe through the third opening.

Description

Technical Field

[0001] The utility model relates to the technical field of dialysis, in particular to a dry powder device for dialysis. Background Art

[0002] In the field of dialysis technology, medical staff can use dry powder devices to ensure that the composition of the dialysate is accurate and stable. The various components in the dry powder are scientifically proportioned to simulate the normal blood composition of the human body, so as to achieve the best effect during the dialysis process. In addition, the dry powder device avoids the errors and contamination problems that may occur in traditional preparation methods, improving the safety and effectiveness of treatment.

[0003] At present, most of the dry powder devices for dialysis on the market are dry powder bags for dialysis, which are made of a combination of soft plastic bags, joints, filter cores, long straws and dry powder agents. The online dialysis dry powder bag contains dry powder agents as the main component. When in use, water is passed through the round hole on one side of the joint to dissolve the dry powder agent into a concentrated liquid, and then the concentrated liquid is extracted through the long straw and enters the dialysis machine from the other side for use. However, this type of dry powder bag for dialysis has the following shortcomings: 1. During the use of the dry powder bag for dialysis, the long straw extracts liquid from bottom to top, and the long straw may be bent and flattened, causing the problem of liquid interruption or insufficient liquid supply during the absorption process; 2. During the use of the dry powder bag for dialysis, as the dry powder and liquid in the bag decrease, the soft plastic bag becomes deflated under the action of air pressure, resulting in the isolation of part of the dry powder from the straw, and the dry powder cannot be fully used, wasting materials. Utility Model Content

[0004] The technical problem to be solved by the utility model is that in the prior art, when a dialysis dry powder bag is used to prepare dialysis fluid, the liquid flow is easily interrupted and the liquid supply is insufficient during the suction process, and part of the dry powder cannot be sucked by the suction tube under the action of air pressure.

[0005] In order to solve the above technical problems, the utility model provides a dry powder device for dialysis, which includes a box body assembly, a top cover and an interface assembly; a storage chamber for preparing dialysis fluid is arranged inside the box body assembly, a first opening is arranged at the top of the storage chamber, and a second opening and a third opening are respectively arranged at the bottom of the storage chamber; the top cover is arranged above the box body assembly, and the top cover is used to cover the first opening; the interface assembly is arranged below the box body assembly, and the interface assembly includes a base, a liquid inlet pipe and a liquid outlet pipe, one end of the base is connected to the bottom of the box body assembly, and the other end is respectively connected to the liquid inlet pipe and the liquid outlet pipe, and the liquid inlet pipe passes through the base to communicate with the second opening, and the liquid outlet pipe passes through the base to communicate with the third opening; wherein, one end of the liquid inlet pipe is externally connected to a liquid injection piece, and liquid enters the storage chamber through the second opening to contact with the dry powder for dissolving the dry powder, and the dissolved dry powder flows from the liquid outlet pipe to the dialysis machine through the third opening.

[0006] In one embodiment, the interface component further includes a filter member disposed between the base and the cartridge assembly.

[0007] In one embodiment, the filter member includes a first filter screen disposed between the liquid inlet pipe and the second opening, and one end of the first filter screen is welded to the liquid inlet pipe and the other end is snap-fitted with the second opening.

[0008] In one embodiment, the filter member further includes a second filter screen disposed between the liquid outlet pipe and the third opening, and one end of the second filter screen is welded to the liquid outlet pipe and the other end is snap-fitted with the third opening.

[0009] In one embodiment, both the first filter screen and the second filter screen are circular, and a plurality of first slits are provided on both the first filter screen and the second filter screen, and the plurality of first slits are spaced apart and wound around the outer periphery of the centers of the first filter screen and the second filter screen.

[0010] In one embodiment, a second slit is provided on the top cover, and the number of the second slits is multiple. The multiple second slits are spaced apart and provided in the middle of the top cover, and each second slit passes through the top cover and communicates with the storage cavity.

[0011] In one embodiment, an isolation area is provided at the bottom of the storage cavity. The isolation area is located between the second opening and the third opening and is used to extend the path between the second opening and the third opening.

[0012] In one embodiment, a groove recessed toward the storage cavity is provided on one end face of the cartridge assembly.

[0013] In one embodiment, the material of the cartridge assembly is a rigid injection molded part.

[0014] Compared with the prior art, the beneficial effects of the dry powder device for dialysis in the embodiment of the present utility model are as follows: In the embodiment of the present utility model, 1) The box body assembly serves as the main part of the device. The storage cavity provided inside the box body assembly is used to store the dry powder required for dialysis. A first opening is provided at the top of the storage cavity. The setting of the first opening enables medical staff to place the dry powder into the storage cavity through the first opening, improving the efficiency of placing the dry powder. At the bottom of the storage cavity, a second opening and a third opening are provided. These two openings are respectively used for the injection of liquid and the discharge of the dialysate after dissolution. At the same time, the third opening is provided at the bottom of the box body assembly and is arranged in an inverted manner, making it easier for the dialysate to enter the dialysis machine under the action of gravity, realizing the smooth flow of the dialysate; 2) The top cover is used to cover the box body assembly. The function of the top cover is to cover the first opening and protect the dry powder in the storage cavity from the influence of the external environment; 3) The interface assembly is a key part responsible for connecting with external devices in the whole device. The interface assembly includes a base, a liquid inlet pipe, and a liquid outlet pipe. The liquid inlet pipe passes through the base and is communicated with the second opening, enabling an external liquid injection part to conveniently inject liquid into the storage cavity to be mixed and dissolved with the dry powder to form dialysate. The liquid outlet pipe passes through the base and is communicated with the third opening, responsible for guiding the dialysate to the dialysis machine for the patient to use. The present utility model effectively solves the problems in the prior art that when using a dry powder bag for dialysis to prepare dialysate, the liquid is prone to break flow and insufficient liquid supply during the suction process by the straw, and some dry powder cannot be sucked by the straw under the action of air pressure. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of an embodiment of the present utility model.

[0016] Figure 2 is a schematic diagram of the result from another angle of an embodiment of the present utility model.

[0017] Figure 3 is a schematic structural diagram of the filter element in an embodiment of the present utility model.

[0018] Figure 4 is an exploded view of an embodiment of the present utility model.

[0019] Figure 5 is a side view of an embodiment of the present utility model.

[0020] In the figure, 1. Box body assembly; 11. First opening; 12. Second opening; 13. Third opening; 14. Groove; 15. Isolation area; 2. Top cover; 21. Second slit; 3. Interface assembly; 31. Base; 32. Liquid inlet pipe; 33. Liquid outlet pipe; 34. Filter element; 341. First filter screen; 342. Second filter screen; 343. First slit. Detailed Embodiments

[0021] The following will further describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0022] In the description of the present utility model, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. The terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "height", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in the present utility model is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0024] In the description of the present utility model, it should be understood that the terms "first" and "second" in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0025] Such as Figures 1 to 5As shown in the figure, the present utility model preferably provides a dry powder device for dialysis, which includes a box body assembly 1, a top cover 2 and an interface assembly 3; a storage cavity for preparing dialysis fluid is arranged inside the box body assembly 1, a first opening 11 is arranged at the top of the storage cavity, and a second opening 12 and a third opening 13 are respectively arranged at the bottom of the storage cavity; the top cover 2 is arranged above the box body assembly 1, and the top cover 2 is used to cover the first opening 11; the interface assembly 3 is arranged below the box body assembly 1, the interface assembly 3 includes a base 31, a liquid inlet pipe 32 and a liquid outlet pipe 33, one end of the base 31 is connected to the bottom of the box body assembly 1, and the other end is respectively connected to the liquid inlet pipe 32 and the liquid outlet pipe 33, and the liquid inlet pipe 32 passes through the base 31 and communicates with the second opening 12, and the liquid outlet pipe 33 passes through the base 31 and communicates with the third opening 13; wherein, one end of the liquid inlet pipe 32 is externally connected to a liquid injection member, and the liquid enters the storage cavity through the second opening 12 and contacts the dry powder for dissolving the dry powder, and the dissolved dry powder flows from the liquid outlet pipe 33 through the third opening 13 to the dialysis machine.

[0026] Based on the above technical features, the present utility model includes: 1) The box body assembly 1, as the main part of the device, the storage cavity arranged inside the box body assembly 1 is used to store the dry powder required for dialysis. A first opening 11 is arranged at the top of the storage cavity. The setting of the first opening 11 enables medical staff to place the dry powder into the storage cavity through the first opening 11, improving the efficiency of placing the dry powder. The bottom of the storage cavity is provided with a second opening 12 and a third opening 13, and these two openings are respectively used for the injection of liquid and the discharge of the dialysis fluid after dissolution. At the same time, the third opening 13 is arranged at the bottom of the box body assembly 1, and the inverted setting is adopted, so that the dialysis fluid is more likely to enter the dialysis machine under the action of gravity, realizing the smooth flow of the dialysis fluid; 2) The top cover 2, which is used to cover the box body assembly 1, and the function of the top cover 2 is to cover the first opening 11 to protect the dry powder in the storage cavity from the influence of the external environment; 3) The interface assembly 3, which is the key part responsible for connecting with external devices in the whole device. The interface assembly 3 includes a base 31, a liquid inlet pipe 32 and a liquid outlet pipe 33. The liquid inlet pipe 32 passes through the base 31 and communicates with the second opening 12, enabling the external liquid injection member to conveniently inject the liquid into the storage cavity to be mixed and dissolved with the dry powder to form dialysis fluid. The liquid outlet pipe 33 passes through the base 31 and communicates with the third opening 13, and is responsible for guiding the dialysis fluid to the dialysis machine for the patient to use.

[0027] As some embodiments of the present utility model, such as Figures 3 to 4 shown, the interface assembly 3 further includes a filter member 34, and the filter member 34 is arranged between the base 31 and the box body assembly 1. The main function of the filter member 34 is to prevent unnecessary substances such as impurities, particulate matters, and suspended matters in the liquid from entering the storage cavity and affecting the safety of the dialysis fluid.

[0028] As some embodiments of the present utility model, such as Figures 3 to 4As shown in the figure, the filter element 34 includes a first filter screen 341. The first filter screen 341 is arranged between the liquid inlet pipe 32 and the second opening 12. One end of the first filter screen 341 is welded to the liquid inlet pipe 32, and the other end is fitted and clamped with the second opening 12. Welding one end of the first filter screen 341 to the liquid inlet pipe 32 ensures the sealing and stability between the first filter screen 341 and the liquid inlet pipe 32, preventing liquid leakage. The other end is fitted and clamped with the second opening 12, which facilitates the installation, disassembly and replacement of the first filter screen 341.

[0029] As some embodiments of the present utility model, as Figures 3 to 4 shown in the figure, the filter element 34 further includes a second filter screen 342. The second filter screen 342 is arranged between the liquid outlet pipe 33 and the third opening 13. One end of the second filter screen 342 is welded to the liquid outlet pipe 33, and the other end is fitted and clamped with the third opening 13. Similarly, welding one end of the second filter screen 342 to the liquid outlet pipe 33 ensures the sealing and stability between the first filter screen 341 and the liquid outlet pipe 33, preventing liquid leakage. The other end is fitted and clamped with the third opening 13, which facilitates the installation, disassembly and replacement of the second filter screen 342.

[0030] As some embodiments of the present utility model, as Figures 3 to 4 shown in the figure, both the first filter screen 341 and the second filter screen 342 are circular, and a plurality of first slits 343 are provided on both the first filter screen 341 and the second filter screen 342. The plurality of first slits 343 are spaced around the outer circumference of the centers of the first filter screen 341 and the second filter screen 342. The setting of the first slits 343 effectively isolates the dry powder and prevents the dry powder from being directly flushed into the liquid outlet pipe 33 during the liquid injection process. This helps to ensure that only the dissolved dialysis fluid is transported from the liquid outlet pipe 33 to the dialysis machine, thereby improving the safety and effectiveness of the dialysis process. At the same time, the circular filter screen shape itself has good structural stability, and the uniform distribution of the first slits 343 further enhances the overall strength of the filter element 34. This enables the filter element 34 to withstand higher pressure and impact and extends its service life.

[0031] Furthermore, the welding method of the first filter screen 341 and the second filter screen 342 is ultrasonic welding to ensure that the first filter screen 341 and the liquid inlet pipe 32 are fused into an integral structure, and the second filter screen 342 and the liquid outlet pipe 33 are fused into an integral structure, effectively ensuring that the first filter screen 341 and the second filter screen 342 will not fall off during the use of the device.

[0032] As some embodiments of the present utility model, as Figure 1As shown, a second slit 21 is provided on the top cover 2. The number of the second slits 21 is multiple, and the multiple second slits 21 are arranged at intervals in the middle of the top cover 2, and each second slit 21 passes through the top cover 2 and communicates with the storage cavity. One of the main functions of the second slit 21 is to allow gas to flow inside and outside the top cover 2, so as to maintain the pressure balance inside and outside the storage cavity. This is crucial for preventing liquid leakage or structural damage of the cartridge assembly 1 caused by pressure difference.

[0033] As some embodiments of the present utility model, as Figure 2 shown, an isolation area 15 is provided at the bottom of the storage cavity. The isolation area 15 is located between the second opening 12 and the third opening 13 and is used to extend the path from the second opening 12 to the third opening 13. By extending the flow path of the liquid, the liquid has more opportunities to contact the dry powder during the flow process, thereby improving the dissolution efficiency of the dry powder. At the same time, the setting of the isolation area 15 causes a height difference when the dissolved dialysate enters the liquid outlet pipe 33, and the liquid flow is smoother and unobstructed.

[0034] As some embodiments of the present utility model, as Figure 5 shown, a groove 14 recessed towards the storage cavity is provided on one end face of the cartridge assembly 1. The design of the groove 14 effectively ensures that the device is arranged on the dialysis machine and avoids interference between the cartridge assembly 1 and the cover plate above the device interface of the dialysis machine, further improving the applicability of the device.

[0035] As some embodiments of the present utility model, the material of the cartridge assembly 1 is a rigid injection molding. The rigid injection molding has high strength and rigidity, can withstand certain external pressure and impact, and protects the dry powder and liquid stored inside from damage. At the same time, during the use process, as the flow rate of the dialysate used by the dialysis machine changes, the liquid in the box will increase or decrease rapidly, which is convenient for medical staff to observe the use situation of the dialysate in time.

[0036] In summary, the embodiment of the present utility model provides a dry powder device for dialysis. Compared with the prior art, its beneficial effects are as follows: 1) The box body assembly 1, as the main part of the device, the storage cavity provided inside the box body assembly 1 is used to store the dry powder required for dialysis. A first opening 11 is provided at the top of the storage cavity. The setting of the first opening 11 enables medical staff to place the dry powder into the storage cavity through the first opening 11, improving the efficiency of placing the dry powder. A second opening 12 and a third opening 13 are provided at the bottom of the storage cavity. These two openings are respectively used for the injection of liquid and the discharge of the dialysate after dissolution. At the same time, the third opening 13 is provided at the bottom of the box body assembly 1 and is arranged in an inverted manner, making it easier for the dialysate to enter the dialysis machine under the action of gravity, realizing the smooth flow of the dialysate; 2) The top cover 2 is used to cover the box body assembly 1. The function of the top cover 2 is to cover the first opening 11 to protect the dry powder in the storage cavity from the influence of the external environment; 3) The interface assembly 3 is the key part responsible for connecting with external devices in the whole device. The interface assembly 3 includes a base 31, a liquid inlet pipe 32 and a liquid outlet pipe 33. The liquid inlet pipe 32 passes through the base 31 and is communicated with the second opening 12, enabling an external liquid injection part to conveniently inject liquid into the storage cavity to be mixed and dissolved with the dry powder to form a dialysate. The liquid outlet pipe 33 passes through the base 31 and is communicated with the third opening 13, responsible for guiding the dialysate to the dialysis machine for the patient to use. The present utility model effectively solves the problems in the prior art that when using a dry powder bag for dialysis to prepare a dialysate, the liquid is prone to break flow and insufficient liquid supply during the suction process by the straw, and part of the dry powder cannot be sucked by the straw under the action of air pressure.

[0037] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can still be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A dry powder device for dialysis, characterized in that, It includes a box body component, a top cover, and an interface component; A storage cavity for preparing dialysate is arranged inside the box body component. A first opening is arranged at the top of the storage cavity, and a second opening and a third opening are respectively arranged at the bottom of the storage cavity; The top cover is arranged above the box body component and is used to cover the first opening; The interface component is arranged below the box body component. The interface component includes a base, a liquid inlet pipe, and a liquid outlet pipe. One end of the base is connected to the bottom of the box body component, and the other end is respectively connected to the liquid inlet pipe and the liquid outlet pipe. The liquid inlet pipe passes through the base and is communicated with the second opening, and the liquid outlet pipe passes through the base and is communicated with the third opening; Wherein, one end of the liquid inlet pipe is externally connected to a liquid injection part. Liquid enters the storage cavity through the second opening and contacts the dry powder for dissolving the dry powder. The dissolved dry powder flows from the third opening through the liquid outlet pipe to the dialysis machine.

2. The dry powder device for dialysis according to claim 1, wherein, The interface component further includes a filter element, and the filter element is arranged between the base and the box body component.

3. The dry powder device for dialysis according to claim 2, characterized in that, The filter element includes a first filter screen, and the first filter screen is arranged between the liquid inlet pipe and the second opening. One end of the first filter screen is welded to the liquid inlet pipe, and the other end is cooperatively clamped with the second opening.

4. The dry powder device for dialysis according to claim 3, characterized in that, The filter element further includes a second filter screen, and the second filter screen is arranged between the liquid outlet pipe and the third opening. One end of the second filter screen is welded to the liquid outlet pipe, and the other end is cooperatively clamped with the third opening.

5. The dry powder device for dialysis according to claim 4, characterized in that, Both the first filter screen and the second filter screen are circular, and a plurality of first fine slits are arranged on both the first filter screen and the second filter screen. The plurality of first fine slits are spaced apart and wound around the outer periphery of the centers of the first filter screen and the second filter screen.

6. The dry powder device for dialysis according to claim 1, characterized in that, A second fine slit is arranged on the top cover. The number of the second fine slits is multiple. The multiple second fine slits are spaced apart and arranged in the middle of the top cover, and each second fine slit passes through the top cover and is communicated with the storage cavity.

7. The dry powder device for dialysis according to claim 1, characterized in that, An isolation area is arranged at the bottom of the storage cavity. The isolation area is located between the second opening and the third opening and is used to extend the path from the second opening to the third opening.

8. The dry powder device for dialysis according to claim 1, characterized in that, A groove recessed towards the storage cavity is arranged on one end face of the box body component.

9. The dry powder device for dialysis according to claim 1, wherein The material of the box body component is a hard injection molded part.

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