A filtering and antibacterial device for hemodialysis machine in nephrology

Abstract

The invention discloses a filtering and antibacterial device for a hemodialyzer in nephrology, and specifically relates to the field of antibacterial disinfection of medical materials. The device comprises a main body mechanism, an auxiliary regulating mechanism is fixedly installed on the outer wall of the main body mechanism, a fluid channel mechanism is rotatably installed inside the main body mechanism, a plurality of dynamic filtering mechanisms are fixedly installed inside the fluid channel mechanism, and the fluid channel mechanism comprises a plurality of supporting layers, and the plurality of supporting layers are arranged in a superimposed state along the longitudinal center line direction thereof; the invention arranges a plurality of superimposed supporting layers, and arranges a guide tube and a spiral guide plate inside each supporting layer, so that a continuous vortex is formed when the dialysate flows through these spiral structures, thereby increasing the shear force of the fluid, thereby reducing the accumulation of impurities, avoiding the clogging of the filter holes, and reducing the probability of bacteria remaining in the impurities, thereby achieving a highly efficient physical antibacterial effect.

Description

Technical Field

[0001] The invention relates to the technical field of antibacterial disinfection of medical materials, and more specifically to a filtering and antibacterial device for a hemodialyzer in kidney medicine. Background Art

[0002] When general disinfection or sterilization is performed on hemodialysis machines in nephrology, sterilization or bacteriostasis is usually carried out through chemical, physical, gas or heat treatment methods to remove or kill bacteria, viruses and other microorganisms to ensure their hygiene and safety during use.

[0003] However, in the prior art, the dialysis fluid is easily trapped in the filter layer during the filtration process, which makes the pore size of the filter device easily blocked during long-term use. In addition, due to the lack of self-cleaning and antibacterial functions, microorganisms and impurities are easily accumulated inside the filter layer, thereby increasing the risk of microbial growth. This not only increases the maintenance frequency and cost of the equipment, but also makes it difficult to achieve efficient and lasting physical antibacterial effects and cleanliness maintenance. Therefore, the present invention proposes a filtering and antibacterial device for a nephrology hemodialyzer to solve the above problems. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a filtering and antibacterial device for a nephrology hemodialyzer, which is provided with a plurality of superimposed supporting layers, and a guide tube and a spiral guide plate are provided inside each supporting layer, so that a continuous vortex is formed when the dialysate flows through these spiral structures, thereby increasing the shear force of the fluid, thereby reducing the accumulation of impurities, avoiding clogging of the filter holes, and reducing the probability of bacteria remaining in the impurities, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: A filtering and antibacterial device for a hemodialyzer in nephrology, comprising a main body mechanism, an auxiliary regulating mechanism being fixedly mounted on the outer wall of the main body mechanism;

[0006] A fluid channel mechanism is rotatably installed inside the main body mechanism, and a plurality of dynamic filtering mechanisms are fixedly installed inside the fluid channel mechanism;

[0007] The fluid channel mechanism includes a plurality of support layers, the plurality of support layers are arranged in a stacked state along the longitudinal center line direction thereof, and the interior of the plurality of support layers is arranged in a hollow state, the dynamic filtering mechanism includes a plurality of flow guide tubes fixedly installed in a vertical state inside the support layers, the tops and bottoms of the plurality of flow guide tubes are arranged in an open state, the tops and bottoms of the plurality of flow guide tubes are fixedly installed with filter membranes, the center part of the filter membrane is provided with a filter hole arranged in a through shape, and the inner walls of the plurality of flow guide tubes are fixedly installed with spirally arranged flow guide plates;

[0008] The outer walls of the filter membrane and the filter holes are coated with polycaprolactone, a heat-conducting strip is fixedly installed at the edge of the filter hole, a plurality of heating blocks are fixedly installed inside the filter membrane, and heating wires are electrically connected between the plurality of heating blocks, and a controller electrically connected to the heating wires is fixedly installed on the outer wall of the flow guide tube.

[0009] In a preferred embodiment, a second guide plate is fixedly installed on the top of each of the plurality of supporting layer plates, a first limiting ring is fixedly installed on the outer wall of the second guide plate, a second limiting ring is fixedly installed on the bottom of each of the plurality of supporting layer plates, an inner circumferential diameter length of the second limiting ring is greater than an outer circumferential diameter length of the first limiting ring, and the second limiting ring is clamped on the outer wall of the first limiting ring.

[0010] In a preferred embodiment, the filter holes at both ends of the guide tube arranged inside each supporting layer plate have the same aperture size, and the aperture lengths of the multiple filter holes arranged inside the multiple supporting layers are arranged in a decreasing state from top to bottom.

[0011] In a preferred embodiment, a micro vibrator assembly is embedded in each of the supporting layer plates, and the vibration frequency of the micro vibrator assembly arranged on each of the supporting layer plates is different.

[0012] In a preferred embodiment, the main body structure includes an outer shell that is sleeved on the outer walls of multiple supporting layer plates, the top of the outer shell is covered with a top cover, the bottom of the outer shell is connected to a first guide plate, the internal thread of the first guide plate is connected to a bottom plate, the top of the top cover is connected to a liquid inlet pipe, and the bottom of the bottom plate is connected to a liquid outlet pipe extending into the inner cavity of the first guide plate.

[0013] In a preferred embodiment, the auxiliary adjustment mechanism includes two first limit covers fixedly mounted on the outer wall of the shell, a second limit cover fixedly connected to the shell is provided between the two first limit covers, and the outer wall of the shell is provided with a positioning groove connected to the first limit cover and the second limit cover.

[0014] In a preferred embodiment, a connecting rod is rotatably installed inside the two first limiting covers, the top of the connecting rod is fixedly connected to an electric gear, the bottom of the connecting rod is fixedly connected to a first guide gear, and the inner cavity of the second limiting cover is rotatably installed with a limiting sleeve, the limiting sleeve is sleeved on the outer wall of the connecting rod, and the outer wall of the limiting sleeve is fixedly installed with a second guide gear.

[0015] In a preferred embodiment, the electric gear, the first guide gear and the second guide gear are all rotatably installed inside the positioning groove and extend into the inner cavity of the shell, and the outer walls of the plurality of supporting layer plates are fixedly mounted with gear rings, and the gear rings and the electric gear, the first guide gear and the second guide gear are arranged in a mutually meshing state.

[0016] In a preferred embodiment, the end of the limiting sleeve extending out of the bottom of the second limiting cover is fixedly installed with a third guide gear, the bottom of the second limiting cover is rotatably installed with a fourth guide gear meshing with the third guide gear, the outer wall of the connecting rod is fixedly installed with a first support rod, the top of the first support rod is rotatably connected to the second support rod, and the top of the second support rod is rotatably installed with a third support rod rotatably connected to the fourth guide gear.

[0017] Technical effects and advantages of the present invention:

[0018] The present invention provides a plurality of stacked support layers, and provides a flow guide tube and a spiral flow guide plate inside each support layer, so that when the dialysate flows through these spiral structures, a continuous vortex is formed, which increases the shear force of the fluid, thereby significantly reducing the accumulation of impurities, avoiding clogging of the filter holes, and increasing the flow rate while reducing the probability of bacteria remaining in the impurities, thereby achieving a highly efficient physical antibacterial effect;

[0019] The present invention coats the filter membrane and the filter pores with polycaprolactone material, which has the characteristics that the pore size can be expanded when heated. Therefore, during cleaning, the pore size is expanded by increasing the temperature, which accelerates the eddy current cleaning process, making it easier to wash away impurities, and then the pore size returns to a normal size, ensuring the accuracy of daily filtration. It not only improves the self-cleaning performance of the filtration system and reduces the possibility of microbial growth, but also maintains a stable high filtration efficiency in regular use;

[0020] The present invention embeds vibration devices of different frequencies inside each supporting layer plate, activates vibration during the cleaning process, and combines it with eddy current flow to effectively remove stubborn pollutants inside the filter holes and the guide tube, avoid the formation of sanitary dead corners, and achieve layer-by-layer stripping of pollutants, ensuring that the inner wall of the filter device remains clean, inhibiting the further growth of bacteria, and improving the antibacterial effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the axial side structure of the present invention.

[0023] Figure 3 It is a partial structural sectional view of the main mechanism and the auxiliary adjustment mechanism of the present invention.

[0024] Figure 4 For the present invention Figure 3 A-section structure enlarged view.

[0025] Figure 5 It is a structural exploded view of the fluid channel mechanism of the present invention.

[0026] Figure 6 It is a partial structural cross-sectional view of the fluid channel mechanism and the dynamic filtering mechanism of the present invention.

[0027] Figure 7 For the present invention Figure 6 Enlarged view of the structure of part B.

[0028] Figure 8 It is a front cross-sectional view of the local structure of the auxiliary adjustment mechanism of the present invention.

[0029] Fig. 9 For the present invention Figure 8 Enlarged view of the C structure.

[0030] The accompanying drawings are marked as: 1 main body mechanism, 101 shell, 102 top cover, 103 first guide plate, 104 bottom plate, 105 liquid inlet pipe, 106 liquid outlet pipe, 2 auxiliary adjustment mechanism, 21 first limit cover, 22 second limit cover, 23 positioning groove, 24 electric gear, 25 connecting rod, 26 first guide gear, 27 limit sleeve, 28 second guide gear, 29 third guide gear, 210 fourth guide gear, 211 first support rod, 212 second support rod, 213 third support rod, 3 fluid channel mechanism, 31 support layer plate, 32 second guide plate, 33 first limit ring, 34 second limit ring, 35 micro vibrator assembly, 36 gear ring, 4 dynamic filtering mechanism, 41 guide tube, 42 guide plate, 43 filter membrane, 44 filter hole, 45 thermal conductive strip, 46 heating block, 47 heating wire, 48 controller. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Refer to the instruction manual Figure 1-9 , a filtering and antibacterial device for a hemodialyzer for nephrology according to an embodiment of the present invention, such as Figure 1-2 As shown, it includes a main body mechanism 1, and an auxiliary adjustment mechanism 2 is fixedly installed on the outer wall of the main body mechanism 1;

[0033] Combination Figure 3 As shown, a fluid channel mechanism 3 is rotatably installed inside the main body mechanism 1, and a plurality of dynamic filtering mechanisms 4 are fixedly installed inside the fluid channel mechanism 3;

[0034] The fluid channel mechanism 3 includes a plurality of support layers 31, wherein the plurality of support layers 31 are stacked along the longitudinal center line thereof, and the interiors of the plurality of support layers 31 are hollow. Figure 6-7 As shown, the dynamic filtering mechanism 4 includes a plurality of flow guide tubes 41 fixedly installed in a vertical state inside the support layer plate 31, and the tops and bottoms of the plurality of flow guide tubes 41 are open, wherein filter membranes 43 are fixedly installed on the tops and bottoms of the plurality of flow guide tubes 41, and a filter hole 44 arranged in a through shape is opened at the center of the filter membrane 43. During the actual use of hemodialysis, the dialysate flows downward from the support layer plate 31 arranged at the top in turn inside each support layer plate 31, and the dialysate flows between the flow guide tubes 41 through the filter holes 44 opened inside the filter membrane 43, so that the dialysate forms layers during use. Filtration mechanism, improves filtration efficiency, and at the same time, in order to avoid a large number of microorganisms or impurities blocking the filter hole 44, reducing the dialyzed blood flow rate, increasing the retention time in the blood, and thus reducing the filtration efficiency, a spirally arranged guide plate 42 is fixedly installed on the inner wall of the multiple guide tubes 41. When the dialysate passes through the spiral guide plate 42 arranged inside the multiple guide tubes 41, a continuous vortex can be formed at the top of the guide tube 41 to increase the shear force of the dialysate and reduce the adhesion and accumulation of impurities. The spiral flow design not only increases the flow rate of the fluid, but also makes it easy for impurities on the surface of the filter membrane 43 to be washed away by the flow, reducing the probability of clogging;

[0035] Furthermore, the outer walls of the filter membrane 43 and the filter hole 44 are coated with polycaprolactone, which has good biocompatibility and shape memory properties and can undergo reversible deformation at a specific temperature. In actual use, the internal pore size of the filter hole 44 can be reversibly expanded by heating, and the original shape can be restored when the temperature is lowered, effectively maintaining the dialysis efficiency. At the same time, a heat-conducting strip 45 is fixedly installed at the edge of the filter hole 44, a plurality of heating blocks 46 are fixedly installed inside the filter membrane 43, and the plurality of heating blocks 46 are electrically connected to each other with heating wires 47, and the outer wall of the flow guide tube 41 is fixedly installed with a heating wire 47 connected to the electric heating wire 47. The controller 48 electrically connected to the wire 47, when actually cleaning the filter 43, embeds a heating block 46 in the filter 43, and starts the controller 48 by powering on to heat the heating wire 47 to generate heat, and the heat is transmitted to the filter 43 and the heat conductive strip 45 through multiple heating blocks 46, so as to quickly heat the area of ​​the filter 43, so that the polycaprolactone coated on the outer wall of the filter hole 44 is heated, thereby driving the pore size of the filter hole 44 to expand, and combined with the guide plate 42, the fluid generates vortexes to achieve more efficient cleaning, prevent the accumulation of pollutants and microorganisms, and help the self-cleaning and antibacterial properties of the surface of the filter 43.

[0036] Among them, combined Figure 4 As shown, a second guide plate 32 is fixedly installed on the top of each of the plurality of support layer plates 31. The purpose of such arrangement is that, in actual use, the fluid falling through the top of the second guide plate 32 can be guided and drained by the surface of the second guide plate 32, so that the fluid gathers toward the central part of the top of the support layer plate 31, so that the fluid can fully flow into the plurality of guide tubes 41 arranged inside the support layer plate 31. At the same time, a first limiting ring 33 is fixedly installed on the outer wall of the second guide plate 32, and a second limiting ring 34 is fixedly installed on the bottom of each of the plurality of support layer plates 31. The inner circumferential diameter length of the second limiting ring 34 is greater than the outer circumferential diameter length of the first limiting ring 33. The second limiting ring 34 is clamped on the outer wall of the first limiting ring 33. In actual use, the first limiting ring 33 and the second limiting ring 34 are mutually clamped between each two support layer plates 31, so that each two support layer plates 31 are stacked on each other, and will not easily shake or move during use, thereby maintaining a stable state when the plurality of support layer plates 31 are stacked.

[0037] As a further extension of this scheme, refer to Figure 5-6As shown, the pore sizes of the filter holes 44 at both ends of the guide tube 41 arranged inside each supporting layer plate 31 are the same, and the pore lengths of the multiple filter holes 44 arranged inside the multiple supporting layer plates 31 are arranged in a decreasing state from top to bottom. The purpose of such arrangement is to make the pore size of the filter holes 44 arranged on the topmost supporting layer plate 31 larger, and the corresponding flow tube diameter of the guide tube 41 is also wider, which is suitable for filtering and cleaning larger particles. The pore size of the multiple filter holes 44 arranged on the middle layer and the bottom layer of the supporting layer plate 31 gradually becomes smaller, and the corresponding flow tube diameter of the guide tube 41 also gradually decreases, which is suitable for cleaning and removing finer particles. In the cleaning stage, the temperature rise at the heat conducting strip 45 stimulates the aperture of the filter holes 44 set on each supporting layer plate 31 to be appropriately increased, so that the eddy current formed inside the flow guide tube 41 can act more directly on the surface of the filter membrane 43 and the pollutants inside the aperture of the filter hole 44, flushing away the impurities attached to the aperture edge, improving the cleaning quality and efficiency of the impurities inside the filter membrane 43 and the flow guide tube 41, and reducing the breeding of bacteria. In the normal filtering state, the aperture of the filter hole 44 set inside each supporting layer plate 31 is restored to a smaller size to achieve high-precision filtering. At this time, the flow guide tube 41 maintains normal flow to ensure that the filtering effect is not affected;

[0038] At the same time, refer to Figure 7 As shown, a micro-vibrator assembly 35 is embedded inside each supporting layer plate 31, and the vibration frequency of the micro-vibrator assembly 35 arranged on each supporting layer plate 31 is different. During the cleaning process, the micro-vibrator assembly 35 arranged on each supporting layer plate 31 is started, and the filter hole 44 is heated by power at the same time to stimulate its aperture to expand, so that the cleaning fluid generates a stronger eddy current inside the guide tube 41, so that under the synergistic effect of vibration and eddy current, the pollutants deposited on the aperture edge and the channel are peeled off layer by layer and flushed away, thereby removing stubborn pollutants, reducing the generation of sanitary dead corners, and further reducing the breeding of bacteria.

[0039] Further, see Figure 2-3As shown, the main body mechanism 1 includes a shell 101 sleeved on the outer walls of a plurality of support layer plates 31, the top of the shell 101 is covered with a top cover 102, the bottom of the shell 101 is connected to a first guide plate 103, the inner thread of the first guide plate 103 is connected to a bottom plate 104, the top of the top cover 102 is connected to a liquid inlet pipe 105, and the bottom of the bottom plate 104 is connected to a liquid outlet pipe 106 extending into the inner cavity of the first guide plate 103. In actual use, the dialysate can enter the interior of the top cover 102 via the liquid inlet pipe 105, and then The dialysate is filtered layer by layer through the multiple guide tubes 41 and filter holes 44 provided on each support layer plate 31. The filtered impurities and microorganisms are isolated on the top of the filter membrane 43. The filtered dialysate enters the inner cavity of the first guide plate 103 and is finally extracted for use through the liquid outlet pipe 106. When it is used for cleaning and disinfection, the cleaning fluid also enters from the top cover 102 and is discharged from the liquid outlet pipe 106. The precipitated impurities are accumulated on the bottom plate 104 and can be removed by opening the bottom plate 104 regularly.

[0040] As a further extension of this scheme, refer to Figure 3-4 As shown, the auxiliary adjustment mechanism 2 includes two first limit covers 21 fixedly mounted on the outer wall of the housing 101, a second limit cover 22 fixedly connected to the housing 101 is provided between the two first limit covers 21, and a positioning groove 23 connected to the first limit cover 21 and the second limit cover 22 is provided on the outer wall of the housing 101;

[0041] Combination Fig. 9 and Figure 4 As shown, the two first limiting covers 21 are both rotatably installed with a connecting rod 25 inside, the top of the connecting rod 25 is fixedly connected with an electric gear 24, the bottom of the connecting rod 25 is fixedly connected with a first guide gear 26, and the inner cavity of the second limiting cover 22 is rotatably installed with a limiting sleeve 27, the limiting sleeve 27 is sleeved on the outer wall of the connecting rod 25, and the outer wall of the limiting sleeve 27 is fixedly installed with a second guide gear 28. In actual use, by starting the electric gear 24, the connecting rod 25 can drive the first guide gear 26 to perform synchronous rotational movement. By setting the limiting sleeve 27, the second guide gear 28 can rotate synchronously with the electric gear 24 and the first guide gear 26.

[0042] The electric gear 24, the first guide gear 26 and the second guide gear 28 are all rotatably mounted inside the positioning groove 23 and extend into the inner cavity of the housing 101. The outer walls of the plurality of support layer plates 31 are fixedly mounted with gear rings 36. The gear rings 36 are arranged in a mutually meshing state with the electric gear 24, the first guide gear 26 and the second guide gear 28. In actual use, when the electric gear 24, the first guide gear 26 and the second guide gear 28 are all rotated, the gear rings 36 meshed therewith can be driven to rotate, and then the plurality of support layer plates 31 can be rotated, so that the communication positions between the plurality of guide pipes 41 arranged inside each layer of the support layer plate 31 are changed, so as to prevent pollutants from forming a fixed deposition path on the surface of the filter membrane 43, thereby enhancing the self-cleaning effect.

[0043] Further, see Figure 4 As shown, one end of the limiting sleeve 27 extending out of the bottom of the second limiting cover 22 is fixedly installed with a third guide gear 29, and the bottom of the second limiting cover 22 is rotatably installed with a fourth guide gear 210 meshing with the third guide gear 29, and the outer wall of the connecting rod 25 is fixedly installed with a first support rod 211, and the top of the first support rod 211 is rotatably connected with the second support rod 212, and the top of the second support rod 212 is rotatably installed with a third support rod 213 rotatably connected with the fourth guide gear 210. In actual use, by starting the connecting rod 25 to rotate, the first support rod 211 can pull the second support rod 212 to make the third support rod 213 rotate, thereby driving the fourth guide gear 21 0 rotates in the same direction as the connecting rod 25, and then the third guide gear 29 meshing therewith drives the limiting sleeve 27 and the second guide gear 28 to rotate in the opposite direction synchronously with the connecting rod 25, so that the support layer plate 31 arranged between the two first limiting covers 21 can rotate in the opposite direction to the support layer plates 31 arranged above and below them, thereby playing a role in misalignment adjustment of the communication paths between the multiple flow guide pipes 41. By making the multiple filter holes 44 randomly arranged for circulation, the stress can be evenly distributed, which is not easy to cause local damage to the surface of the filter membrane 43, thereby extending the service life of the filter membrane 43, and at the same time avoiding the problem of damage to the filter membrane 43 caused by repeated disassembly and cleaning, thereby saving replacement costs.

[0044] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0045] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0046] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A filtering and antibacterial device for a hemodialyzer in nephrology, comprising a main body (1), an auxiliary regulating mechanism (2) being fixedly mounted on the outer wall of the main body (1); Features: A fluid channel mechanism (3) is rotatably mounted inside the main body mechanism (1), and a plurality of dynamic filtering mechanisms (4) are fixedly mounted inside the fluid channel mechanism (3); The fluid channel mechanism (3) comprises a plurality of support layers (31), the plurality of support layers (31) are arranged in a stacked state along the longitudinal centerline direction thereof, and the interior of the plurality of support layers (31) is arranged in a hollow state, the dynamic filtering mechanism (4) comprises a plurality of flow guide tubes (41) vertically fixedly installed inside the support layers (31), the tops and bottoms of the plurality of flow guide tubes (41) are arranged in an open state, the tops and bottoms of the plurality of flow guide tubes (41) are fixedly installed with filter membranes (43), the center portion of the filter membrane (43) is provided with filter holes (44) arranged in a through shape, and the inner walls of the plurality of flow guide tubes (41) are fixedly installed with flow guide plates (42) arranged in a spiral shape; The outer walls of the filter membrane (43) and the filter holes (44) are coated with polycaprolactone, a heat-conducting strip (45) is fixedly installed at the edge of the filter hole (44), a plurality of heating blocks (46) are fixedly installed inside the filter membrane (43), and electric heating wires (47) are electrically connected between the plurality of heating blocks (46), and a controller (48) electrically connected to the electric heating wires (47) is fixedly installed on the outer wall of the flow guide tube (41).

2. The filtration and antibacterial device of a hemodialyzer for nephrology according to claim 1, characterized in that: A second guide plate (32) is fixedly mounted on the top of the plurality of support layer plates (31), a first limit ring (33) is fixedly mounted on the outer wall of the second guide plate (32), and a second limit ring (34) is fixedly mounted on the bottom of the plurality of support layer plates (31), the inner circumference diameter length of the second limit ring (34) is greater than the outer circumference diameter length of the first limit ring (33), and the second limit ring (34) is clamped on the outer wall of the first limit ring (33).

3. The filtration and antibacterial device of a hemodialyzer for nephrology according to claim 2, characterized in that: The filter holes (44) at both ends of the flow guide tube (41) arranged inside each of the supporting layer plates (31) have the same aperture size, and the aperture lengths of the plurality of filter holes (44) arranged inside the plurality of supporting layer plates (31) are arranged in a decreasing order from top to bottom.

4. The filtration and antibacterial device of a hemodialyzer for nephrology according to claim 3, characterized in that: A micro vibrator assembly (35) is embedded inside each of the supporting layer plates (31), and the vibration frequency of the micro vibrator assembly (35) arranged on each of the supporting layer plates (31) is different.

5. The filtration and antibacterial device of a hemodialyzer for nephrology according to claim 4, characterized in that: The main body mechanism (1) comprises an outer shell (101) sleeved on the outer walls of a plurality of supporting layer plates (31); the top of the outer shell (101) is covered with a top cover (102); the bottom of the outer shell (101) is connected to a first guide plate (103); the first guide plate (103) is internally threadedly connected to a bottom plate (104); the top of the top cover (102) is connected to a liquid inlet pipe (105); the bottom of the bottom plate (104) is connected to a liquid outlet pipe (106) extending into the inner cavity of the first guide plate (103).

6. The filtration and antibacterial device of a hemodialyzer for nephrology according to claim 5, characterized in that: The auxiliary adjustment mechanism (2) comprises two first limit covers (21) fixedly mounted on the outer wall of the housing (101), a second limit cover (22) fixedly connected to the housing (101) is provided between the two first limit covers (21), and a positioning groove (23) communicating with the first limit cover (21) and the second limit cover (22) is provided on the outer wall of the housing (101).

7. A filtering and antibacterial device for a hemodialyzer for nephrology according to claim 6, characterized in that: A connecting rod (25) is rotatably mounted inside the two first limiting covers (21), the top of the connecting rod (25) is fixedly connected to an electric gear (24), the bottom of the connecting rod (25) is fixedly connected to a first guide gear (26), and a limiting sleeve (27) is rotatably mounted in the inner cavity of the second limiting cover (22), the limiting sleeve (27) is sleeved on the outer wall of the connecting rod (25), and a second guide gear (28) is fixedly mounted on the outer wall of the limiting sleeve (27).

8. The filtering and antibacterial device of a hemodialyzer for nephrology according to claim 7, characterized in that: The electric gear (24), the first guide gear (26) and the second guide gear (28) are all rotatably mounted inside the positioning groove (23) and extend into the inner cavity of the housing (101); a gear ring (36) is fixedly mounted on the outer walls of the plurality of support plates (31); the gear ring (36) is arranged in a mutually meshing state with the electric gear (24), the first guide gear (26) and the second guide gear (28).

9. The filtering and antibacterial device of a hemodialyzer for nephrology according to claim 8, characterized in that: A third guide gear (29) is fixedly mounted on one end of the limiting sleeve (27) extending out of the bottom of the second limiting cover (22); a fourth guide gear (210) meshing with the third guide gear (29) is rotatably mounted on the bottom of the second limiting cover (22); a first support rod (211) is fixedly mounted on the outer wall of the connecting rod (25); a second support rod (212) is rotatably connected to the top of the first support rod (211); and a third support rod (213) rotatably connected to the fourth guide gear (210) is rotatably mounted on the top of the second support rod (212).

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