Dry powder bag and dialysis system

Abstract

The utility model relates to the technical field of medical instruments, and provides a dry powder bag and a dialysis system.The dry powder bag comprises a mounting and connecting part and a bag body, the mounting and connecting part is provided with a liquid inlet channel and a liquid outlet channel which are used for being connected with a dialysis machine, the bag body is of a hollow structure with the two ends open, and one end of the bag body is open to form a connecting opening; the connecting opening is connected with the assembling part in a sealed mode, a port in one side of the liquid inlet channel and a port in one side of the liquid outlet channel are both located in the bag body, and the other end of the bag body is opened to form a powder containing opening used for filling the bag body with hemodialysis dry powder. According to the scheme, the problems that in the prior art, a special powder filling channel is formed in the assembling and connecting part of the dry powder bag, the powder filling efficiency is low, the structure is complex, after powder filling is completed, the powder filling channel needs to be sealed, the production process is increased, and the cost is increased can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a dry powder bag and a dialysis system. BACKGROUND

[0002] Hemodialysis is an effective means for treating renal failure, and hemodialysis concentrate is an indispensable component in the hemodialysis process. Existing hemodialysis concentrates mainly include hemodialysis concentrate and hemodialysis dry powder. The hemodialysis dry powder is contained in a dry powder bag for use. The dry powder bag includes a connecting part and a bag body. The connecting part is used for mounting on a dialysis machine, and the bag body is used for containing the hemodialysis dry powder.

[0003] In the prior art, one end of the bag body is sealingly connected to the connecting part, and the other end is sealingly closed. The connecting part is provided with a powder filling groove, which is in communication with the internal space of the bag body. The hemodialysis dry powder is filled into the bag body through the powder filling groove. Since the powder filling groove is provided with a liquid inlet channel and a liquid outlet channel beside it, the size of the powder filling groove is relatively small, which leads to a low powder filling efficiency. The structure of the powder filling groove is complex. Moreover, after the powder filling is completed, the powder filling groove needs to be sealed again, which increases the production process and production cost. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a dry powder bag and a dialysis system to solve the problems in the prior art, i.e., a special powder filling groove is provided on the connecting part of the dry powder bag, the powder filling efficiency is low, and after the powder filling is completed, the powder filling groove needs to be sealed, which increases the production process and production cost.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A dry powder bag includes:

[0007] A connecting part is provided with a liquid inlet channel and a liquid outlet channel for connecting with a dialysis machine;

[0008] A bag body is a hollow structure with two open ends. One end opening forms a connecting opening, which is sealingly connected to the connecting part. The side port of the liquid inlet channel and the side port of the liquid outlet channel are both located inside the bag body. The other end opening of the bag body forms a powder filling opening for filling the hemodialysis dry powder into the bag body.

[0009] Optionally, the part of the liquid inlet channel located inside the bag body is provided with a filter structure;

[0010] The side port of the liquid outlet channel located inside the bag body forms a liquid outlet. The dry powder bag further includes a liquid outlet pipe. One end of the liquid outlet pipe is connected to the liquid outlet, and the other end of the liquid outlet pipe extends to the end where the powder filling opening is located.

[0011] Optionally, the liquid inlet channel is connected to a bottom plate at one side end in the bag body and is blocked by the bottom plate, a side wall of the liquid inlet channel in the bag body is provided with filter pores for allowing liquid to flow into the bag body and filtering the liquid, and the bottom plate, the side wall of the liquid inlet channel provided with the filter pores, and the filter pores form the filter structure.

[0012] Optionally, the bottom plate and the liquid inlet channel are of an integrated structure.

[0013] Optionally, an installation plate is arranged in the end of the liquid inlet channel for communication with the bag body, the installation plate and an inner wall of the end of the liquid inlet channel for communication with the bag body enclose an installation space, the installation plate is provided with a through hole, the filter structure is arranged on the installation plate and located in the installation space, and a liquid inlet end of the filter structure is in communication with the through hole.

[0014] The filter structure is provided with filter pores for allowing liquid to flow into the bag body and filtering the liquid.

[0015] Optionally, the liquid inlet channel, the installation plate, and the filter structure are of an integrated structure.

[0016] Optionally, the filter pores are multiple, and at least part of the filter pores are filter slits in a strip shape.

[0017] Optionally, a strip-shaped hole is arranged at a position of the filter slit, along a wall thickness direction of the filter structure, the strip-shaped hole is a tapered hole with an expanding or contracting opening, and the contracting opening of the strip-shaped hole forms the filter slit.

[0018] Optionally, the attachment part is provided with a handle.

[0019] A dialysis system includes the dry powder bag.

[0020] In the embodiments of the present application, the bag body is a hollow structure with open ends, the connecting opening of the bag body is sealingly connected to the attachment part, and the other end opening of the bag body forms a powder filling opening for filling hemodialysis dry powder into the interior of the bag body. That is, in the dry powder bag in the embodiments of the present application, the cross-sectional area of the structure (i.e., the powder filling opening) for filling powder is equal to the cross-sectional area of the bag body, which increases the cross-sectional area of the powder filling structure compared with the prior art, thereby improving the powder filling efficiency.

[0021] In addition, the embodiment of the present application does not need to open a special powder filling groove, and the structure is more simplified; and after the powder filling is completed, the powder filling groove does not need to be sealed, and the prior art also needs to seal the end of the bag body away from the mounting part, therefore, compared with the prior art, the embodiment of the present application reduces the production steps of sealing the powder filling groove, thereby reducing the production cost. It can be seen that the dry powder bag provided by the embodiment of the present application can solve the problems in the prior art that a special powder filling groove is opened on the mounting part of the dry powder bag, the powder filling efficiency is low, and after the powder filling is completed, the powder filling groove also needs to be sealed, thereby increasing the production process and leading to the increase of the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0023] Figure 1 The structural schematic diagram of the dry powder bag provided by the embodiment of the present application is shown in the figure;

[0024] Figure 2 The sectional view of the dry powder bag provided by the embodiment of the present application is shown in the figure;

[0025] Figure 3 The structural schematic diagram of the mounting part with the first filter structure provided by the embodiment of the present application is shown in the figure;

[0026] Figure 4 The sectional view of the mounting part with the first filter structure provided by the embodiment of the present application is shown in the figure;

[0027] Figure 5 The enlarged view of A in the figure; Figure 4

[0028] Figure 6 The sectional view of the mounting part with the second filter structure provided by the embodiment of the present application is shown in the figure;

[0029] Figure 7 The enlarged view of B in the figure; Figure 6

[0030] Figure 8 The structural schematic diagram of the first side (upper part) of the mounting part with the second filter structure provided by the embodiment of the present application is shown in the figure;

[0031] Figure 9 The top view of the figure; Figure 8

[0032] Figure 10 ​​​A structure diagram of the second side (bottom) of the attachment part with the second filtering structure provided by the embodiment of the present application is shown in the following figure.

[0033] Figure 11 A top view of the embodiment of the present application is shown in the following figure. Figure 10

[0034] In the embodiment of the present application, the following technical solutions are provided. Figures 1-11

[0035] 100, attachment part; 111, first liquid inlet part; 112, second liquid inlet part; 113, third liquid inlet part; 121, liquid outlet; 122, first liquid outlet part; 123, second liquid outlet part; 124, third liquid outlet part; 130, hollow cylinder; 140, cover; 150, filtering structure; 151, bottom plate; 152, filtering aperture; 160, handle; 170, mounting plate; 180, mounting space.

[0036] 200, bag body; 210, powder filling opening. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] As shown in the following figure, the embodiment of the present application provides a dry powder bag, which comprises an attachment part 100 and a bag body 200. Figures 1-11 The attachment part 100 is provided with a liquid inlet channel and a liquid outlet channel for connecting with a dialysis machine.

[0039] The bag body 200 is used for containing hemodialysis dry powder, and is a hollow structure with both ends open. One end opening forms a connecting opening, which is fixedly connected with the attachment part 100 by heat sealing or adhesion. The side port of the liquid inlet channel and the side port of the liquid outlet channel are both located inside the bag body 200. The other end opening of the bag body 200 forms a powder filling opening 210, which is used for filling hemodialysis dry powder into the bag body 200.

[0040] When the powder needs to be filled, the hemodialysis dry powder is filled into the bag body 200 through the powder filling opening 210. After the powder filling is completed, the powder filling opening 210 can be sealed by heat sealing or heat melting, so as to ensure the sealing property of the bag body 200.

[0041]

[0042] ​​​When blood dialysis is needed, the dry powder bag is connected with a dialysis machine for use, and a liquid medium for dissolving the dry powder for blood dialysis flows into the bag body 200 through the liquid inlet channel to dissolve the dry powder for blood dialysis to form dialysate, and the dialysate flows out through the liquid outlet channel and flows into the dialysis machine for blood dialysis.

[0043] It should be noted that the liquid medium can be water or other medium, which is not limited herein.

[0044] In the prior art, one end of the bag body 200 is sealingly connected to the connecting portion 100, and the one-side port of the powder filling groove, the one-side port of the liquid inlet channel and the one-side port of the liquid outlet channel of the connecting portion 100 are all located in the bag body 200, the dry powder for blood dialysis is filled into the bag body 200 through the powder filling groove, liquid is introduced through the liquid inlet channel, and liquid is discharged through the liquid outlet channel, so that the total cross-sectional area of the one-side port of the powder filling groove, the one-side port of the liquid inlet channel and the one-side port of the liquid outlet channel is smaller than the cross-sectional area of the bag body 200, that is, in the prior art, the cross-sectional area of the structure for powder filling (i.e. the powder filling groove) is smaller than the cross-sectional area of the bag body 200, and the size of the powder filling groove is small, resulting in low powder filling efficiency.

[0045] In the embodiment of the present application, the bag body 200 is a hollow structure with both ends open, the connecting opening of the bag body 200 is sealingly connected to the connecting portion 100, and the other end opening of the bag body 200 forms a powder filling opening 210, which is used to fill the dry powder for blood dialysis into the bag body 200, that is, in the dry powder bag of the embodiment of the present application, the cross-sectional area of the structure for powder filling (i.e. the powder filling opening 210) is equal to the cross-sectional area of the bag body 200, which increases the cross-sectional area of the powder filling structure compared with the prior art, thereby improving the powder filling efficiency.

[0046] In addition, the embodiment of the present application does not need to open a special powder filling groove, and the structure is more simplified; and after the powder filling is completed, the powder filling groove does not need to be sealed, and the prior art also needs to seal the end of the bag body 200 away from the connecting portion 100, therefore, the embodiment of the present application reduces the production step of sealing the powder filling groove compared with the prior art, thereby reducing the production cost. It can be seen that the dry powder bag provided by the embodiment of the present application can solve the problems in the prior art that a special powder filling groove is opened on the connecting portion of the dry powder bag, the powder filling efficiency is low, the structure is complex, and after the powder filling is completed, the powder filling groove needs to be sealed, which increases the production process and leads to the increase of production cost.

[0047] It should be noted that the cross-sectional area of the structure for powder filling (the powder filling groove in the prior art and the powder filling opening 210 in the present application) refers to the area of the cross section perpendicular to the filling direction of the dry powder for blood dialysis during the powder filling process.

[0048] In order to adapt to the size of the dialysis machine and the size of the bag body 200, an intermediate connecting portion can be arranged between the liquid inlet channel and the liquid outlet channel, that is, the liquid inlet channel and the liquid outlet channel are respectively located on two sides of the intermediate connecting portion.

[0049] In an alternative embodiment, the intermediate connecting portion can be a solid structure.

[0050] In a preferred embodiment, the intermediate connecting portion can include a hollow cylinder 130, and the hollow cylinder 130 can be sealed at one end or both ends. For example, please refer again to Figure 4 and Figure 6 The inside of the hollow cylinder 130 can be provided with a cover 140, which seals one end of the hollow cylinder 130, preventing external impurities from entering the inside of the bag body 200 through the hollow cylinder 130 and polluting the hemodialysis dry powder inside the bag body 200. Such a structure is beneficial to save the material cost of the connecting portion 100, reduce the weight of the connecting portion 100, and facilitate the lightweight design of the dry powder bag.

[0051] The hollow cylinder 130 and the cover 140 can be fixedly connected by adhesion, heat sealing, or the like. Alternatively, the hollow cylinder 130 and the cover 140 can be an integrated structure processed by an integral molding process to ensure the connection and sealing of the hollow cylinder 130 and the cover 140, and to reduce assembly steps and assembly costs.

[0052] In further technical solutions, the connecting portion 100 can be an integrated structure processed by injection molding or the like to reduce assembly steps and assembly costs.

[0053] The liquid medium for dissolving hemodialysis dry powder is usually water, which can easily contain impurities. If the water directly flows into the bag body 200 to dissolve the hemodialysis dry powder to prepare dialysis fluid, there can be problems affecting the dissolution effect and preparation quality.

[0054] Therefore, in the embodiments of the present application, the portion of the liquid inlet channel inside the bag body 200 can have a filter structure 150. When the liquid medium flows into the liquid inlet channel and then flows out through the filter structure 150 to enter the bag body 200, the liquid medium is filtered to ensure the dissolution effect and preparation quality.

[0055] The filter structure 150 has various structures. In an alternative embodiment, the filter structure 150 can be a filter screen, which is fixed to the side port of the liquid inlet channel inside the bag body 200 to filter the liquid medium.

[0056] The filter structure 150 has various structures. In an optional embodiment, the inlet channel is connected with the bottom plate 151 at one side port inside the bag body 200, and the side wall of the inlet channel inside the bag body 200 is provided with filter pores 152 for allowing liquid to flow into the bag body 200 and filtering the liquid, and the bottom plate 151, the side wall of the inlet channel provided with the filter pores 152, and the filter pores 152 form the filter structure 150.

[0057] During liquid inlet, the liquid medium flows into the inlet channel and then flows out through the filter pores 152 to enter the bag body 200, and the filtering of the liquid medium is realized during the liquid inlet process, the solid particles and impurities in the liquid medium are effectively filtered, the purity of the liquid medium is improved, and the water for dissolving hemodialysis dry powder is particularly suitable for filtering, so as to ensure the purity and preparation quality of the dialysate prepared synchronously during hemodialysis.

[0058] Meanwhile, the filter pores 152 are directly provided on the side wall of the inlet channel, and no additional filter screen or filter element is required, the structural strength is large, the liquid impact resistance is strong, the deformation problem is not prone to occur, the durability is high, the side wall of the inlet channel assists in forming the filter structure 150, the liquid medium is provided with a flow channel, and the liquid is filtered, thereby achieving the effect of one thing with two uses and saving cost.

[0059] In addition, the filter pores 152 are provided on the side wall of the inlet channel, so that the liquid medium enters the inlet channel and flows out from the side wall of the inlet channel, and the intercepted impurities are accumulated on the bottom plate 151. Compared with the technical solution that the filter pores 152 are provided on the bottom plate 151 and the liquid medium directly impacts the bottom plate 151 to be filtered after entering the inlet channel, the embodiment can alleviate the problem that the impurities are flushed into the filter pores 152, alleviate the problem that the filter pores 152 are blocked to affect the liquid inlet flow rate, and can more effectively separate the impurities and enhance the filtering effect.

[0060] The connection mode of the bottom plate 151 and the inlet channel is various. In an optional embodiment, the bottom plate 151 and the inlet channel can be fixedly connected through bonding, hot melting processing, or the like. In an optional embodiment, the bottom plate 151 and the inlet channel can be an integrated structure processed through an integral molding process. In this structure, the bottom plate 151 and the inlet channel are integrally molded, the process of mounting the bottom plate 151 to the inlet channel is not required, the processing and manufacturing process is simplified, the cost is saved, and the bottom plate 151 has no loss and the like.

[0061] The filter structure 150 has various structures, and the liquid inlet channel has an end for communicating with the dialysis machine and an end for communicating with the bag body 200. In an optional embodiment, the end of the liquid inlet channel for communicating with the bag body 200 is provided with a mounting plate 170, the mounting plate 170 and the inner wall of the end of the liquid inlet channel for communicating with the bag body 200 form a mounting space 180, the mounting plate 170 is provided with a through hole, the filter structure 150 is arranged on the mounting plate 170 and located in the mounting space 180, that is, the filter structure 150 is located in the interior of the liquid inlet channel, the liquid inlet end of the filter structure 150 communicates with the through hole, and the filter structure 150 is provided with filter pores 152 for allowing liquid to flow into the interior of the bag body 200 and filtering the liquid.

[0062] In this structure, the filter structure 150 is located in the interior of the liquid inlet channel, and the liquid inlet channel forming the mounting space 180 can protect the filter structure 150, avoiding the problem that the filter structure 150 protruding to the outside of the liquid inlet channel is accidentally damaged by external force during transportation or installation due to the relatively weak strength of the filter structure 150.

[0063] In addition, the bag body 200 is generally made of soft material, and the water filtered by the filter structure 150 is likely to produce noise when hitting the bag body 200. In the present embodiment, the filter structure 150 is located in the interior of the liquid inlet channel, which can avoid the problem that the water filtered by the filter structure 150 hits the bag body 200 when the filter structure 150 and the liquid inlet channel are located on the same vertical plane and in the lower part of the liquid inlet channel. In the present embodiment, the filter structure 150 is located in the interior of the liquid inlet channel, so that the liquid filtered by the filter structure 150 hits the inner wall of the liquid inlet channel, which is made of hard material and is not easy to produce noise, thereby alleviating the problem of noise generated during the configuration of the dialysis solution.

[0064] The connection mode of the liquid inlet channel, the mounting plate 170 and the filter structure 150 can be various. Optionally, the mounting plate 170 can be connected to the inner wall of the liquid inlet channel by bonding or hot melting connection, and the filter structure 150 can be connected to the mounting plate 170 by bonding or hot melting connection. Optionally, the liquid inlet channel, the mounting plate 170 and the filter structure 150 can be an integrated structure processed by an integrated molding process. In this structure, there is no need to install the mounting plate 170 to the liquid inlet channel or to install the filter structure 150 to the mounting plate 170, which simplifies the processing and manufacturing process, saves costs, and eliminates the risk of loss of the mounting plate 170 and the filter structure 150.

[0065] The filter pores 152 have various structures. In an optional embodiment, the number of filter pores 152 can be multiple, and the filter pores 152 can be mesh-shaped.

[0066] In another alternative embodiment, the number of filter pores 152 can be multiple, and at least part of the filter pores 152 can be filter slits in strip shape. The filter pores 152 in strip slit structure not only can effectively filter and are not easy to be blocked, but also can increase the liquid inflow speed on the basis of ensuring filtration. Of course, all of the filter pores 152 can be filter slits, or part of the filter pores 152 can be filter slits, and the other part of the filter pores 152 can be mesh-shaped.

[0067] The plurality of filter pores 152 can be arranged along the circumferential direction of the filter structure 150 and extend along the axial direction of the filter structure 150. In the axial direction, each filter pore 152 can be an integral slit, or can include a plurality of slit segments arranged along the axial direction.

[0068] In a further technical solution, a strip-shaped hole is provided at the position of the filter slit, and along the wall thickness direction of the filter structure 150, the strip-shaped hole can be a tapered hole with a flared or tapered opening, and the tapered opening of the strip-shaped hole forms the filter slit.

[0069] In the embodiment in which the filter pores 152 are provided in the side wall of the liquid inlet channel, the flared and tapered openings of the strip-shaped hole can be located on one of the outer and inner tube walls of the liquid inlet channel, and the tapered opening of the strip-shaped hole forms the filter slit. In this structure, the filtering effect of the filter slit can be ensured, and the liquid inflow speed can be increased.

[0070] In the embodiment in which the filter structure 150 is located inside the liquid inlet channel, the flared and tapered openings of the strip-shaped hole can be located on one of the outer and inner walls of the filter structure 150, and the tapered opening of the strip-shaped hole forms the filter slit. In this structure, the filtering effect of the filter slit can be ensured, and the liquid inflow speed can be increased.

[0071] Optionally, the cross section of the strip-shaped hole can be V-shaped, such as the flared and tapered openings are located at the two ends of the strip-shaped hole, or the cross section of the strip-shaped hole can be X-shaped, such as the openings at the two ends are flared, and the tapered opening is located between the two ends, such as in the middle region.

[0072] The liquid outlet channel is located at one side port inside the bag body 200 to form a liquid outlet 121. In order to ensure that the dialysate at one end where the powder filling opening 210 is located can smoothly flow out through the liquid outlet channel, the dry powder bag can further include a liquid outlet pipe, a first end of the liquid outlet pipe is connected to the liquid outlet 121, and the other end of the liquid outlet pipe extends to one end where the powder filling opening 210 is located.

[0073] In order to ensure that the hemodialysis dry powder is saturatedly dissolved in the liquid medium to form a high-concentration dialysate, the hemodialysis dry powder in the bag body 200 can be excessively arranged, and therefore a filter element can be arranged on the liquid outlet pipe to filter the dialysate to intercept the undissolved dry powder.

[0074] Optionally, the filter element can be a gauze. Optionally, the filter element can be processed by sintering. Optionally, the filter element can be plastic material and can be integrally formed by injection molding, or can be metal material and can be integrally formed by metal processing. Optionally, the filter element can be a cylinder with an open end, and a filter mesh hole is arranged on the bottom wall opposite to the open end. The cylinder is sleeved on the liquid outlet, and the filter mesh hole is used for filtering.

[0075] In the embodiment of the present application, the attachment part 100 can have a handle 160, which facilitates the taking of the attachment part 100.

[0076] In the embodiment of the present application, the liquid inlet channel can include a first liquid inlet part 111, a second liquid inlet part 112 and a third liquid inlet part 113 which are sequentially communicated. The first liquid inlet part 111 is used to connect the dialysis machine. The third liquid inlet part 113 is communicated with the filter structure 150. The extension directions of the first liquid inlet part 111, the third liquid inlet part 113 and the filter structure 150 are parallel. The extension direction of the second liquid inlet part 112 is perpendicular to the first liquid inlet part 111 and the third liquid inlet part 113.

[0077] The liquid outlet channel can include a liquid outlet 121, a first liquid outlet part 122, a second liquid outlet part 123 and a third liquid outlet part 124 which are sequentially communicated. The extension directions of the liquid outlet 121, the first liquid outlet part 122 and the third liquid outlet part 124 are parallel. The extension direction of the second liquid outlet part 123 is perpendicular to the extension directions of the first liquid outlet part 122 and the third liquid outlet part 124.

[0078] In order to ensure the sealing property of the dry powder bag, the other port of the first liquid inlet part 111 and the other port of the third liquid outlet part 124 can also be provided with a sealing structure. The sealing structure can be connected to the other port of the first liquid inlet part 111 and the other port of the third liquid outlet part 124 by a tearable manner, so as to ensure the sealing property of the liquid inlet channel and the liquid outlet channel, thereby ensuring the sealing property of the dry powder bag.

[0079] Based on the above dry powder bag, the embodiment of the present application further provides a dialysis system including the above dry powder bag. Since the dialysis system has the above dry powder bag, the beneficial effects of the dialysis system brought by the dry powder bag are described above, and will not be repeated here.

[0080] The above describes the basic principles of the present application in combination with specific embodiments, but it should be noted that the advantages, benefits, effects and the like mentioned in the present application are only examples and are not limiting, and these advantages, benefits, effects and the like cannot be considered as necessary for each embodiment of the present application. In addition, the above specific details disclosed are only for the purpose of illustration and understanding, and are not limiting, and the above details do not limit the present application to be necessarily implemented with the above specific details.

[0081] The block diagrams of the devices, apparatuses, equipment, systems involved in the present application are only illustrative examples and are not intended to require or imply the connection, arrangement, configuration shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner. Words such as "include", "contain", "have" and the like are open-ended words, mean "including but not limited to", and can be used interchangeably. The words "or" and "and" used herein mean the word "and / or", and can be used interchangeably unless the context clearly indicates otherwise. The word "such as" used herein means the phrase "such as but not limited to", and can be used interchangeably.

[0082] It should also be noted that in the devices, equipment and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present application.

[0083] The above description of the disclosed aspects is provided so that any person skilled in the art can make or use the present application. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0084] It should be understood that the adjectives "first", "second", "third", "fourth", "fifth" and "sixth" used in the embodiments of the present application are only used for clearer description of the technical solutions, and cannot be used to limit the protection scope of the present application.

[0085] The above description has been given for the purpose of illustration and description. Furthermore, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although a number of example aspects and embodiments have been discussed above, those skilled in the art will recognize certain modifications, alterations, changes, additions and sub-combinations thereof.

Claims

1. A dry powder pouch, characterized in that, The dry powder bag comprises: an attachment part (100) provided with an inlet channel and an outlet channel for connecting with a dialysis machine; a bag body (200) in a hollow structure with both ends open, one end of which forms a connecting opening, the connecting opening is in sealed connection with the attachment part (100), one side port of the inlet channel and one side port of the outlet channel are located inside the bag body (200), and the other end of the bag body (200) forms a powder filling opening (210) for filling hemodialysis dry powder into the bag body (200).

2. The dry powder bag according to claim 1, wherein the part of the inlet channel located inside the bag body (200) is provided with a filter structure (150); the side port of the outlet channel located inside the bag body (200) forms an outlet (121), and the dry powder bag further comprises an outlet pipe, one end of the outlet pipe is connected to the outlet (121), and the other end of the outlet pipe extends to the end where the powder filling opening (210) is located.

3. The dry powder pouch of claim 2, wherein, the side port of the inlet channel located inside the bag body (200) is connected to a bottom plate (151) and is blocked by the bottom plate (151), the sidewall of the inlet channel located inside the bag body (200) is provided with filter pores (152) for allowing liquid to flow into the bag body (200) and filtering the liquid, and the bottom plate (151), the sidewall of the inlet channel provided with the filter pores (152), and the filter pores (152) form the filter structure (150).

4. The dry powder pouch of claim 3, wherein, The bottom plate (151) and the inlet channel are in an integrated structure.

5. The dry powder pouch of claim 2, wherein, An installation plate (170) is arranged in the end of the inlet channel for communicating with the bag body (200), the installation plate (170) and the inner wall of the end of the inlet channel for communicating with the bag body (200) enclose an installation space (180), the installation plate (170) is provided with a through hole, the filter structure (150) is arranged on the installation plate (170) and located in the installation space (180), and the inlet end of the filter structure (150) communicates with the through hole. The filter structure (150) is provided with filter pores (152) for allowing liquid to flow into the bag body (200) and filtering the liquid.

6. The dry powder pouch of claim 5, wherein, The inlet channel, the installation plate (170), and the filter structure (150) are in an integrated structure.

7. The dry powder pouch of any one of claims 3 to 6, wherein, The number of the filter pores (152) is multiple, and at least part of the filter pores (152) are filter slits in a strip shape.

8. The dry powder pouch of claim 7, wherein, The position where the filter slit is located is provided with a strip-shaped hole, along the thickness direction of the wall of the filter structure (150), the strip-shaped hole is a tapered hole with an expanding or contracting opening, and the contracting opening of the strip-shaped hole forms the filter slit.

9. The dry powder pouch of claim 1, wherein, The attachment part (100) has a handle (160).

10. A dialysis system characterized by, The dry powder bag according to any one of claims 1-9.

Images