Dialysis dry powder barrel

Abstract

The utility model discloses a dialysis dry powder barrel, and relates to the technical field of hemodialysis. A discharge hole is coaxially formed in the lower end of the barrel body; a mounting structure is mounted on the bottom surface of an inner cavity of the barrel body; a filter mesh is mounted on the mounting structure; a fiber membrane covers the filter mesh; the filter net piece can be clamped to the installation structure through the fixing claws, a sealing piece is arranged on the inner wall of the barrel body, a downward inclination angle is arranged on the side, close to the axis of the barrel body, of the sealing piece, and the downward inclination side of the sealing piece can be tightly attached to the upper surface of the filter net piece. According to the utility model, the speed of replacing and installing the filter mesh can be improved, time is shortened, and efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of hemodialysis, and particularly relates to a dialysis dry powder barrel. BACKGROUND

[0002] The dialysis dry powder barrel is a core consumable for hemodialysis treatment and is mainly used for preparing dialysis solution. It contains concentrated electrolytes (sodium, potassium, calcium, magnesium, etc.) and buffering agents (such as bicarbonate) and is premixed into dry powder according to physiological requirements of the human body. When used, it is mixed with reverse osmosis water in a certain proportion to generate dialysis solution. The solution exchanges substances with the blood of a patient through a dialysis machine, removes metabolic waste, toxins and excess water, adjusts electrolytes and acid-base balance, and partially replaces kidney function.

[0003] In hemodialysis treatment, dialysis dry powder needs to be strictly filtered before being mixed with dialysis water to form dialysis solution meeting the requirements. The traditional dialysis dry powder barrel is usually provided with a filter screen structure inside to perform filtering operation using the filter screen structure. However, the existing dry powder barrel has many inconveniences in installation and replacement of the filter screen structure, which not only consumes a lot of time of medical staff, but also may affect the filtering effect due to improper installation, thereby adversely affecting the treatment quality of the patient.

[0004] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0005] To solve the above technical problems, the utility model provides a dialysis dry powder barrel, which comprises a barrel body, a discharge hole coaxially arranged at the lower end of the barrel body, an installation structure installed on the bottom surface of the inner cavity of the barrel body, a filter screen installed on the installation structure, a fiber membrane covering the filter screen, a positioning ring arranged on the bottom surface of the filter screen, a plurality of fixing claws evenly installed on the bottom surface of the positioning ring, the fixing claws being at least two, the filter screen being clamped to the installation structure through the fixing claws, a sealing element arranged on the inner wall of the barrel body, the sealing element being arranged on the side close to the axis of the barrel body and having a downward inclination, and the downward inclined side of the sealing element being tightly attached to the upper surface of the filter screen.

[0006] A guide groove is formed at the bottom end of the inner wall of the barrel body, and an installation ring is coaxially installed on the bottom surface of the inner cavity of the barrel body. A plurality of positioning grooves are formed on the side of the installation ring close to the inner wall of the barrel body. The installation structure is simultaneously and slidingly arranged in the guide groove and the positioning grooves, so that the installation structure only moves longitudinally and cannot rotate.

[0007] The installation structure comprises a fixing ring slidingly installed in the guide groove. A plurality of positioning clamping plates are installed on one side of the fixing ring and are in one-to-one sliding connection with the positioning grooves.

[0008] The fixing ring is uniformly provided with a plurality of clamping grooves and clamping sliding grooves, the number of the clamping grooves and the clamping sliding grooves is same as that of the fixing claws, one end of one clamping groove and one clamping sliding groove is communicated, the bottom surface of the fixing ring is uniformly provided with clamping inclined blocks which are same in number as the clamping sliding grooves, the clamping inclined blocks are one-to-one corresponding to the clamping sliding grooves and are located on one side of the clamping sliding grooves, the lower surface of the clamping inclined block is an inclined surface, and the lower end of the clamping inclined block is located at the end of the clamping sliding groove and the clamping groove.

[0009] The bottom surface of the fixing ring is uniformly provided with a plurality of elastic members, and the lower ends of the elastic members are arranged on the bottom surface of the inner cavity of the barrel.

[0010] The upper surface of the fixing ring is covered with a rubber layer.

[0011] The upper end of the filter screen is symmetrically provided with an operation plate.

[0012] The lower end of the inner wall of the barrel is smaller in diameter than the upper end, so that the inner cavity of the barrel is in the shape of an inverted circular table.

[0013] The utility model has the following beneficial effects:

[0014] 1. The fixing claw is clamped into the clamping groove, and the fixing claw is rotated along the clamping sliding groove by rotating, and the fixing claw is gradually clamped by the clamping inclined block, so that the filter screen is firmly fixed on the positioning ring, and the filtering effect is achieved.

[0015] 2. The elastic member enables the fixing ring to move longitudinally, so that the filter screen can be moved downward, and the upper surface of the filter screen is below the sealing element.

[0016] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages above. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2This is a schematic diagram of the filter screen structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the barrel of this utility model;

[0021] Figure 5 For the present utility model Figure 4 A magnified view of the structure at point A in the middle;

[0022] Figure 6 This is the second schematic diagram of the internal structure of the barrel of this utility model;

[0023] Figure 7 For the present utility model Figure 6 A magnified schematic diagram of the structure at point B in the middle;

[0024] Figure 8 This is the second schematic diagram of the filter screen structure of this utility model;

[0025] Figure 9 This is the second schematic diagram of the installation structure of this utility model.

[0026] Explanation of reference numerals in the attached drawings: 1. Barrel body; 2. Discharge hole; 3. Installation structure; 4. Filter screen; 5. Fiber membrane; 6. Positioning ring; 7. Fixing claw; 8. Seal; 9. Guide groove; 10. Mounting ring; 11. Positioning groove; 12. Fixing ring; 13. Positioning plate; 14. Snap-fit ​​groove; 15. Snap-fit ​​slide; 16. Snap-fit ​​inclined block; 17. Elastic element; 18. Operation panel. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figures 1-9 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 8 As shown:

[0029] The embodiment provides a dialysis dry powder barrel, which comprises a barrel body 1, a discharging hole 2 coaxially arranged at the lower end of the barrel body 1, a mounting structure 3 mounted on the bottom surface of the inner cavity of the barrel body 1, a filter screen 4 mounted on the mounting structure 3, a fiber membrane 5 covering the filter screen 4, a positioning ring 6 arranged on the bottom surface of the filter screen 4, a plurality of fixing claws 7 evenly mounted on the bottom surface of the positioning ring 6, the fixing claws 7 being at least two, the fixing claws 7 being used for clamping the filter screen 4 to the mounting structure 3, a sealing element 8 arranged on the inner wall of the barrel body 1, the sealing element 8 comprising but not limited to rubber and silica gel, and the sealing element 8 being arranged on the side close to the axis of the barrel body 1 and being inclined downward at an angle, and the inclined side of the sealing element 8 being tightly attached to the upper surface of the filter screen 4.

[0030] An operator places the filter screen 4 in the barrel body 1, so that the positioning ring 6 on the bottom surface of the filter screen 4 corresponds to the upper surface of the mounting structure 3, and then the filter screen 4 is clamped into the mounting structure 3 through the fixing claws 7, at this time, the fixing claws 7 are rotated in the mounting structure 3 by rotating the filter screen 4, so that the fixing claws 7 are fixed to the mounting structure 3, and the filter screen 4 cannot be unlocked without external force, so that the filter screen 4 is mounted on the mounting structure 3, when the filter screen 4 is placed on the mounting structure 3, the sealing element 8 is pressed and the inclined side of the sealing element 8 is in contact with the outer circumferential surface of the filter screen 4, after the filter screen 4 is fixed on the mounting structure 3, the filter screen 4 is pressed downward to move downward through the mounting structure 3, so that the filter screen 4 moves downward to the lower part of the sealing element 8 and is not in contact with the sealing element 8, at this time, the filter screen 4 is not pressed and moves upward through the mounting structure 3, in the process of upward movement of the filter screen 4, the inclined side of the sealing element 8 is in contact with the upper end of the filter screen 4, after the filter screen 4 returns to the original position, the inclined side of the sealing element 8 is deformed and tightly attached to the upper end of the filter screen 4, so that the dialysis liquid formed by fully mixing the dry powder in the barrel body 1 with water only falls to the lower part of the filter screen 4 through the fiber membrane 5 on the filter screen 4, the dialysis liquid is prevented from penetrating into the lower part of the filter screen 4 from other positions, and the smoothness of the filtering process and the reliability of the filtering effect are ensured.

[0031] As shown in 3-9, the bottom end of the inner wall of the barrel 1 is provided with a guide groove 9, and the bottom surface of the inner cavity of the barrel 1 is coaxially provided with a mounting ring 10. A plurality of positioning grooves 11 are formed on one side of the inner wall of the barrel 1, and the mounting structure 3 is simultaneously and slidingly arranged in the guide groove 9 and the positioning groove 11; the mounting structure 3 comprises a fixed ring 12 which is slidingly arranged in the guide groove 9. A positioning clamping plate 13 which is the same in number as the positioning grooves 11 is arranged on one side of the fixed ring 12. The positioning clamping plate 13 is slidingly connected with the positioning groove 11 one by one. The positioning ring 6 is placed on the upper surface of the fixed ring 12, and the positioning ring 6 is fixed on the fixed ring 12 by the fixed claw 7, so as to firmly fix the filter screen 4 on the fixed ring 12. It is ensured that the filter screen 4 will not be displaced or loosened in the subsequent use process, and the side sliding connection of the positioning clamping plate 13 and the positioning groove 11 makes the fixed ring 12 only move longitudinally in the barrel 1, and cannot rotate.

[0032] As shown in Figure 8 , Figure 9 , a plurality of clamping grooves 14 and clamping sliding grooves 15 are uniformly arranged on the fixed ring 12, and the number of the clamping grooves 14 and the clamping sliding grooves 15 is the same as that of the fixed claws 7. One clamping groove 14 communicates with one end of one clamping sliding groove 15. The bottom surface of the fixed ring 12 is uniformly provided with clamping inclined blocks 16 which are the same in number as the clamping sliding grooves 15. The clamping inclined blocks 16 correspond to the clamping sliding grooves 15 one by one and are located on one side of the clamping sliding grooves 15. The lower surface of the clamping inclined block 16 is an inclined surface, and the lower end of the clamping inclined block 16 is located at the communicating end of the clamping sliding groove 15 and the clamping groove 14. Therefore, the fixed claws 7 on the bottom surface of the positioning ring 6 of the lower end of the filter screen 4 are aligned with the clamping grooves 14 on the fixed ring 12. After the fixed claws 7 are clamped into the clamping grooves 14, the fixed claws 7 can be rotated through the clamping sliding grooves 15. During the rotation process, the fixed claws 7 will gradually slide along the clamping sliding grooves 15. Since the lower end of the clamping inclined block 16 is located at the communicating end of the clamping sliding groove 15 and the clamping groove 14, and the lower surface of the clamping inclined block 16 is an inclined surface, the fixed claws 7 will be in contact with the clamping inclined block 16 during the sliding process, and will be clamped tightly by the clamping inclined block 16 gradually. In this way, the filter screen 4 is firmly fixed on the positioning ring 6. When it is necessary to disassemble and replace the filter screen 4, the filter screen 4 can be rotated in the opposite direction, so that the fixed state of the filter screen 4 and the fixed ring 12 is released, and the filter screen 4 can be taken out and replaced. The device can facilitate the replacement of the filter screen 4 and improve the replacement efficiency.

[0033] As shown in Figure 2 , Figure 5 , Figure 7As shown, the bottom surface of the fixing ring 12 is uniformly provided with a plurality of elastic members 17, which include but are not limited to springs. The lower ends of the elastic members 17 are arranged on the bottom surface of the inner cavity of the barrel body 1. The elastic members 17 enable the fixing ring 12 to move longitudinally in the guide groove 9. When the sealing member 8 is tilted due to the installation movement of the filter screen 4, one end of the sealing member 8 is located on the outer circumferential surface of the filter screen 4. After the filter screen 4 is fixed on the fixing ring 12, the filter screen 4 can be pressed to make the fixing ring 12 move longitudinally downward in the guide groove 9 and the positioning groove 11 under the action of the elastic members 17, thereby driving the filter screen 4 to move downward so that the upper surface of the filter screen 4 is located below the sealing member 8. At this time, the filter screen 4 is no longer pressed, so that the elastic members 17 are released to drive the fixing ring 12 and the filter screen 4 to move upward to the original height position. During the movement of the filter screen 4, the tilted side of the sealing member 8 contacts the upper end of the filter screen 4. After the filter screen 4 returns to the original position, the tilted side of the sealing member 8 is deformed to tightly fit the upper end of the filter screen 4. Thus, the dry powder and water mixed in the barrel body 1 can only fall to the lower part of the filter screen 4 through the fiber membrane 5 on the filter screen 4 to form dialysate, which avoids the dialysate from penetrating into the lower part of the filter screen 4 from other positions, improves the sealing performance, and ensures the smoothness of the filtering process and the reliability of the filtering effect.

[0034] In another embodiment, the lower end of the filter screen 4 and the connecting part of the positioning ring 6 are made of an elastic deformable material. In this case, the elastic members 17 can not be arranged, and the filter screen 4 can be pressed to slide downward so that the sealing member 8 returns to the upper end of the filter screen 4 to form a tight seal.

[0035] As shown in FIG. 1, Figure 3 When the fixing claw 7 is gradually clamped by the clamping block 16 during sliding, the rubber layer on the upper surface of the fixing ring 12 can be squeezed by the positioning ring 6 to tightly fit the upper surface of the fixing ring 12 with the lower surface of the positioning ring 6, thereby avoiding the dialysate filtered by the fiber membrane from penetrating into the space where the elastic members 17 are arranged at the lower end of the fixing ring 12.

[0036] As shown in FIG. 1, Figure 2 The upper end of the filter screen 4 is symmetrically provided with an operation plate 18, which can facilitate the rotation of the filter screen 4 by the operator to improve the installation speed.

[0037] As shown in FIG. 1, Figure 1 , Figure 2 The lower end of the inner wall of the barrel body 1 has a smaller diameter than the upper end, so that the inner cavity of the barrel body 1 is in the shape of an inverted circular table. Thus, the dialysate mixed inside can naturally gather towards the filter screen 4, thereby making the dialysate more smoothly transported to the outside through the discharge hole 2.

[0038] The working principle of the dialysis dry powder barrel is as follows: the operator places the filter screen 4 inside the barrel body 1, aligns the fixing claws 7 on the bottom surface of the positioning ring 6 with the clamping grooves 14 on the fixing ring 12, places the positioning ring 6 on the upper surface of the fixing ring 12, rotates the filter screen 4 through the operation plate 18, and makes the fixing claws 7 slide in the clamping sliding grooves 15. In the sliding process of the fixing claws 7, the fixing claws 7 are in contact with the clamping inclined blocks 16 and are gradually clamped by the clamping inclined blocks 16, so that the filter screen 4 is firmly fixed on the positioning ring 6. In the installation process of the filter screen 4, the inclined one end of the sealing element 8 is driven to the outer peripheral surface of the filter screen 4. After the filter screen 4 is fixed on the fixing ring 12, the filter screen 4 is pressed, and the filter screen 4 and the fixing ring 12 are vertically moved downward under the action of the elastic element 17, so that the upper surface of the filter screen 4 is located below the sealing element 8. At this time, the filter screen 4 is not pressed any more, so that the elastic element 17 is elastically released, the fixing ring 12 and the filter screen 4 are driven to move upward, and return to the initial height position. In the moving process of the filter screen 4, the inclined one side of the sealing element 8 is in contact with the upper end of the filter screen 4. After the filter screen 4 returns to the original position, the inclined one side of the sealing element 8 is deformed and tightly fits the upper end of the filter screen 4, so that the dry powder and water in the barrel body 1 are fully mixed to form dialysis fluid, and the dialysis fluid only falls to the lower part of the filter screen 4 through the fiber membrane 5 on the filter screen 4. When the filter screen 4 needs to be disassembled and replaced, the filter screen 4 and the fixing ring 12 are unlocked by reversely rotating the filter screen 4, so that the filter screen 4 can be taken out and replaced, and the device is convenient for replacing the filter screen 4.

[0039] In addition, it should be further pointed out that, in the description of the present application, unless otherwise specified and limited, the terms "mounting", "connecting" and "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] The above is the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principle of the present application, some improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A dialysis dry powder bucket comprising a bucket body (1), characterized in that, The barrel body (1) is coaxially provided with a discharging hole (2) at the lower end, the inner cavity bottom surface of the barrel body (1) is provided with a mounting structure (3), the mounting structure (3) is provided with a filter screen (4), the filter screen (4) is covered with a fiber membrane (5), the bottom surface of the filter screen (4) is provided with a positioning ring (6), the bottom surface of the positioning ring (6) is uniformly provided with a plurality of fixing claws (7), the filter screen (4) can be clamped to the mounting structure (3) through the fixing claws (7), the inner wall of the barrel body (1) is provided with a sealing element (8), the sealing element (8) is provided with a downward inclined angle on the side close to the axis of the barrel body (1), and the downward inclined side of the sealing element (8) can be tightly attached to the upper surface of the filter screen (4).

2. A dry powder dialysis cartridge according to claim 1, wherein, The barrel body (1) is coaxially provided with a discharging hole (2) at the lower end, the inner cavity bottom surface of the barrel body (1) is provided with a mounting structure (3), the mounting structure (3) is provided with a filter screen (4), the filter screen (4) is covered with a fiber membrane (5), the bottom surface of the filter screen (4) is provided with a positioning ring (6), the bottom surface of the positioning ring (6) is uniformly provided with a plurality of fixing claws (7), the filter screen (4) can be clamped to the mounting structure (3) through the fixing claws (7), the inner wall of the barrel body (1) is provided with a sealing element (8), the sealing element (8) is provided with a downward inclined angle on the side close to the axis of the barrel body (1), and the downward inclined side of the sealing element (8) can be tightly attached to the upper surface of the filter screen (4).

3. A dry powder dialysis bucket as claimed in claim 2, wherein, The mounting structure (3) comprises a fixing ring (12), the fixing ring (12) is slidably installed in the guide groove (9), and the fixing ring (12) is provided on one side with a plurality of positioning clamping plates (13) which are the same in number as the positioning grooves (11).

4. A dry powder dialysis bucket as claimed in claim 3, wherein, The fixing ring (12) is uniformly provided with a plurality of clamping grooves (14) and clamping sliding grooves (15), the clamping grooves (14) and the clamping sliding grooves (15) are the same in number as the fixing claws (7), one clamping groove (14) is communicated with one end of one clamping sliding groove (15), the bottom surface of the fixing ring (12) is uniformly provided with a plurality of clamping inclined blocks (16) which are the same in number as the clamping sliding grooves (15), the clamping inclined blocks (16) are one-to-one corresponding to the clamping sliding grooves (15) and are located on one side of the clamping sliding grooves (15), the lower surface of the clamping inclined block (16) is provided as an inclined surface, and the lower end of the clamping inclined block (16) is located at the communicated end of the clamping sliding groove (15) and the clamping groove (14).

5. A dry powder dialysis bucket as claimed in claim 4, wherein, The bottom surface of the fixing ring (12) is uniformly provided with a plurality of elastic elements (17), and the lower ends of the elastic elements (17) are arranged on the inner cavity bottom surface of the barrel body (1).

6. A dry powder dialysis bucket as claimed in claim 5, wherein, The upper surface of the fixing ring (12) is covered with a rubber layer.

7. A dry powder dialysis bucket as claimed in claim 6, wherein, The upper end of the filter screen (4) is symmetrically provided with an operating plate (18).

8. The dry powder dialysis cartridge of claim 1, wherein, The lower end of the inner wall of the barrel body (1) is smaller in diameter than the upper end, so that the inner cavity of the barrel body (1) is in the shape of an inverted circular table.

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