CN114100242A

CN114100242A - Double filtering device for centrifugal hemofiltration treatment

Info

Publication number: CN114100242A
Application number: CN202111273150.6A
Authority: CN
Inventors: 邓彦玮
Original assignee: Nanjing Guoqing Blood Purification Technology Co ltd
Current assignee: Nanjing Guoqing Blood Purification Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-01

Abstract

The invention provides a double-filtering device for centrifugal hemofiltration treatment, which relates to the technical field of biological medical treatment and comprises a filtering device body, wherein the inside of the filtering device body is sequentially provided with: the stirring device comprises a first cavity, wherein a stirring device and a second cavity are contained in the first cavity, a centrifugal filtering component is contained in the second cavity, the centrifugal filtering component comprises a centrifugal assembly and a first filtering assembly, a third cavity is formed in the third cavity, the second filtering assembly is contained in the third cavity, a driving component is arranged on one side of a filtering device body and is located at an inner output end of the second cavity, and the reciprocating component drives the centrifugal assembly and the stirring device to move. Through forming multi-level centrifugal filtration, for current filtration earlier after centrifugal treatment, can multi-level filtration, the multistate filters, solid-liquid separation's more thoroughly, the effect is better.

Description

Double filtering device for centrifugal hemofiltration treatment

Technical Field

The invention relates to the technical field of biological medical treatment, in particular to a double-filtering device for centrifugal hemofiltration treatment.

Background

In the analysis and study of blood, it is usually necessary to subject the blood to centrifugal filtration treatment, and a filtration device is used.

When blood to be treated is filtered, the existing filtering device usually filters firstly and then carries out centrifugal treatment, but because the filtering times are few, the layering is lacked, the solid-liquid separation effect is poor, the filtering effect is poor, and the efficiency is low.

Disclosure of Invention

The invention provides a double filtering device for centrifugal hemofiltration treatment, aiming at the defects of the prior art.

The invention solves the technical problems through the following technical means: centrifugal blood strains treatment and uses dual filter equipment, including the filter equipment body, filter equipment body top is provided with the feed inlet that is used for the feeding, the bottom of filter equipment body is provided with the discharge gate that is used for the ejection of compact, the inside of filter equipment body has been seted up from last to down in proper order:

the device comprises a first cavity, a second cavity and a third cavity, wherein a stirring device is accommodated in the first cavity and used for stirring the treatment liquid in the first cavity;

a second cavity, the second cavity is internally provided with a centrifugal filter component, the centrifugal filter component is communicated with the lower part of the stirring device and is used for centrifugally filtering the processing liquid entering the second cavity from the first cavity, the centrifugal filter component consists of a centrifugal component and a first filter component, the first filter component has a vibration function and is used for filtering the processing liquid for the first time, the centrifugal component is positioned below the first filter component and is used for centrifuging the processing liquid filtered by the first filter component,

the third cavity is internally provided with a second filtering component which is communicated below the first filtering component and used for filtering the treatment liquid again;

and a driving part is arranged on one side of the filtering device body, the driving part is positioned at the inner output end of the second cavity and drives the reciprocating part, and the reciprocating part drives the centrifugal assembly and the stirring device to move.

Furthermore, the driving part comprises a speed reducing motor for outputting power, one end of the speed reducing motor, which is close to the filtering device body, is connected with a motor shaft and serves as a power output end of the speed reducing motor, a first bevel gear is fixed on the outer side of the tail end of the motor shaft, one end, which is far away from the motor shaft, of the first bevel gear is meshed with a second bevel gear, the top surface of the second bevel gear is fixedly connected with an upper transmission shaft, and the bottom end of the second bevel gear is fixedly connected with a lower transmission shaft.

Further, agitating unit is including setting up the hydrops storehouse in first cavity for hold and get into this internal treatment fluid of filter equipment from the feed inlet, go up the top of transmission shaft and run through the bottom in hydrops storehouse and extend into the hydrops storehouse, go up the top outside of transmission shaft and be provided with synchronous rotation stirring leaf, be used for stirring treatment fluid.

Furthermore, the outer side of the top end of the upper transmission shaft is fixedly connected with a fixed sleeve, the outer side of the fixed sleeve is fixedly provided with first connecting rods distributed in an array manner, and one ends of the first connecting rods, far away from the fixed sleeve, are fixedly connected with the stirring blades.

Furthermore, the bottom surface of the liquid accumulation bin is communicated with discharging hoppers distributed in an array mode, and the inner diameter of the top end of each discharging hopper is larger than that of the bottom end of each discharging hopper.

Further, the centrifugal assembly comprises a centrifugal inner barrel arranged in the second cavity, a centrifugal outer barrel with a centrifugal function is arranged inside the centrifugal inner barrel, a liquid collecting hopper is fixedly connected to the top end of the centrifugal inner barrel and is sunken downwards, and the inner diameter of the top end of the liquid collecting hopper is larger than that of the bottom end of the liquid collecting hopper.

Further, first filtering component is including setting up the filter screen section of thick bamboo in the second cavity, the top mesh aperture of filter screen section of thick bamboo is greater than the mesh aperture of bottom, filter screen section of thick bamboo inside is provided with the appearance and is reciprocating motion's impact bar along the axial, the impact bar striking filter screen section of thick bamboo's interior both sides.

Further, the second filtering component comprises a filtering pipe arranged inside the third cavity, one end of the filtering pipe is communicated with the inside of the centrifugal component, the other end of the filtering pipe is communicated with the discharge hole, the filtering pipe is composed of a vertical portion, a concave portion and a protruding portion, and a filtering film is arranged inside the vertical portion of the filtering pipe.

Further, reciprocating unit is including being fixed in the inside connecting plate of filter screen section of thick bamboo, the bottom of lower axis of rotation runs through the connecting plate, just the bottom fixedly connected with carousel of lower axis of rotation, the fixed surface of carousel has the second connecting rod, the one end fixed surface of second connecting rod is connected with the spacing slider of second, one side bottom surface fixedly connected with dead lever of impact pole is kept away from to the connecting plate, the terminal outside of dead lever articulates there is reciprocating plate, reciprocating plate's surface runs through and has seted up spacing spout, the spacing slider of second and spacing spout phase-match.

Further, the fixed seat of one side internal surface fixedly connected with symmetry of filter screen section of thick bamboo, two wear to establish the impact bar between the fixed seat, one side fixedly connected with U-shaped locating part that the impact bar kept away from the fixed seat, the first spacing slider of one end fixedly connected with that the reciprocating plate is close to U-shaped locating part, first spacing slider and U-shaped locating part phase-match.

The invention has the beneficial effects that:

the blood to be treated is subjected to primary stirring, primary filtering for three times and primary centrifuging to form multi-level centrifugal filtering, the particle size of particles in the blood to be treated is reduced, the particles are uniformly distributed, the particles capable of being dissolved are dissolved firstly, then the vibration function of the first filtering component is utilized, the particles which are dissolved in the blood to be treated are prevented from being blocked or accumulated at a certain position during filtering, the filtering efficiency is improved, the particles with larger particle size in the blood to be treated are basically filtered, and then the particles which are dissolved in the blood to be treated are centrifuged and filtered firstly by utilizing the sequential processing of the centrifugal component and the second filtering component, so that the particles and liquid are completely separated.

Drawings

FIG. 1 is a schematic view of a filter device according to the present invention;

FIG. 2 is a schematic cross-sectional view of a filter apparatus according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic cross-sectional view of a filter tube according to the present invention;

FIG. 5 is a schematic cross-sectional view of a filter screen cartridge according to the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 5 according to the present invention;

FIG. 7 is a schematic top view of the connecting plate of the present invention;

fig. 8 is a schematic structural view of the invention at C in fig. 7.

In the figure: 10. a filter device body; 11. a drive member; 111. a reduction motor; 112. a motor shaft; 113. a first bevel gear; 114. an upper transmission shaft; 115. a second bevel gear; 116. rotating the shaft downwards; 12. a third cavity; 13. a feed inlet; 14. a discharge port; 15. a first cavity; 16. a second cavity; 20. a second filter assembly; 21. a filter tube; 22. a filtration membrane; 30. a centrifugal filter member; 31. a centrifuge assembly; 311. a centrifugal outer cylinder; 312. a liquid collecting hopper; 313. centrifuging the inner barrel; 32. a first filter assembly; 321. a filter screen cylinder; 322. a fixed seat; 323. a striker bar; 324. a U-shaped limiting part; 40. a stirring device; 41. stirring blades; 42. a first connecting rod; 43. fixing a sleeve; 44. feeding a hopper; 45. a liquid accumulation bin; 50. a reciprocating member; 51. a turntable; 52. a reciprocating plate; 521. fixing the rod; 522. a limiting chute; 523. a first limit slide block; 53. a second connecting rod; 531. a second limit slide block; 54. a connecting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

As shown in fig. 1-2, the dual filter device for centrifugal hemofiltration therapy of the present embodiment includes a filter device body 10, a feeding port 13 for feeding is disposed at the top end of the filter device body 10, a discharging port 14 for discharging is disposed at the bottom end of the filter device body 10, a first cavity 15, a second cavity 16, and a third cavity 12 are sequentially disposed in the filter device body 10 from top to bottom, a stirring device 40 is accommodated in the first cavity 15 for stirring blood to be processed in the first cavity 15, a centrifugal filter component 30 is accommodated in the second cavity 16, the centrifugal filter component 30 is communicated with the lower portion of the stirring device 40 for centrifugally filtering blood to be processed entering the second cavity 16 from the first cavity 15, the centrifugal filter component 30 is composed of a centrifugal component 31 and a first filter component 32, the first filter component 32 has a vibration function, the centrifugal component 31 is positioned below the first filtering component 32 and is used for centrifuging the blood to be treated filtered by the first filtering component 32, the driving component 11 is arranged on one side of the filtering device body 10, the driving component 11 is positioned at the inner output end of the second cavity 16 and drives the reciprocating component 50, the reciprocating component 50 drives the centrifugal component 31 and the stirring device 40 to move, and the second filtering component 20 is arranged in the third cavity 12 and is communicated below the first filtering component 32 and is used for filtering the blood to be treated again.

When the filter device body 10 is used for centrifugal filtration, after blood to be treated is injected from the feed inlet 13, the driving part 11 is started, the driving part 11 is used for outputting power, and the transmission function of the reciprocating part 50 is used for driving the stirring device 40 to stir the injected blood to be treated, so that particles and liquid in the blood to be treated are uniformly distributed, larger particles are split into smaller particles, the particle sizes of the particles are close to each other, the subsequent filtration efficiency is improved,

after the blood that awaits the processing through the stirring gets into centrifugal filter part 30, the blood that awaits the processing that has distributed evenly is earlier through the dual filtration of first filter assembly 32, first filter assembly 32 can be with the great granule separation of granularity down, the less carrier of granularity is centrifugal treatment by centrifugal assembly 31, because first filter assembly 32 possesses the vibrations function, and centrifugal assembly 31's upper end and lower extreme can not produce hydrops and pile up, improve first filter assembly 32's filtration efficiency, first filter assembly 32's security has also been improved, after the granule in the blood that awaits the processing is gone out by basic separation, blood that awaits the processing is guided into in the second cavity 16, centrifugal treatment through centrifugal assembly 31, pull down the fine particulate matter separation once more, and carry out the secondary filtration back by second filter assembly 20, discharge through discharge gate 14.

Through the blood to be treated through once stirring, successively three times filter, once centrifugation, form multi-level centrifugal filtration, reduce the particle size in the blood to be treated earlier, the distribution is even, make the granule that can dissolve earlier, reuse the vibrations function that first filter assembly 32 possessed, avoid leading to blockking up or piling up in a certain place when filtering, improve filtration efficiency, make the great granule of granularity in the blood to be treated filtered basically, reuse centrifugal assembly 31 and second filter assembly 20's processing in proper order, will dissolve the granule in the blood to be treated earlier centrifugation back filtration, thereby make granule and liquid separate completely, for current filtration after centrifugation, can multi-level filtration, multi-state filtration, solid-liquid separation is more thorough, the effect is better.

Referring to fig. 2 and 5, the driving part 11 includes a reduction motor 111 for outputting power, one end of the reduction motor 111 near the filtering apparatus body 10 is connected with a motor shaft 112 as a power output end of the reduction motor 111, a first bevel gear 113 is fixed on an outer side of a distal end of the motor shaft 112, one end of the first bevel gear 113 far away from the motor shaft 112 is engaged with a second bevel gear 115, an upper transmission shaft 114 is fixedly connected to a top surface of the second bevel gear 115, and a lower transmission shaft 116 is fixedly connected to a bottom end of the second bevel gear 115.

When the speed reducing motor 111 is started, the motor shaft 112 drives the first bevel gear 113 to rotate under the action of the speed reducing motor 111, the first bevel gear 113 drives the second bevel gear 115 to rotate under the action of meshing force of the gears, and the second bevel gear 115 drives the upper rotating shaft 114 and the lower rotating shaft 116 to synchronously rotate.

Referring to fig. 2, 3 and 5, the stirring device 40 includes a liquid accumulation chamber 45 disposed in the first cavity 15 for accommodating blood to be treated entering the filtering device body 10 from the feeding port 13, a top end of the upper transmission shaft 114 penetrates through a bottom of the liquid accumulation chamber 45 and extends into the liquid accumulation chamber 45, and a synchronously rotating stirring blade 41 is disposed outside a top end of the upper transmission shaft 114 for stirring the blood to be treated.

During the use, go up transmission shaft 114 and drive stirring leaf 41 and rotate, stir the processing that is in hydrops storehouse 45 to make the inside pending blood of hydrops storehouse 45 stirred evenly, the particulate matter is evenly distributed in the liquid.

Referring to fig. 3, a fixed sleeve 43 is fixedly connected to the outer side of the top end of the upper transmission shaft 114, first connecting rods 42 are fixed to the outer side of the fixed sleeve 43 and are distributed in an array, and one end of each first connecting rod 42, which is far away from the fixed sleeve 43, is fixedly connected to the stirring blade 41.

When the device is used, the stirring blade 41 and the upper transmission shaft 114 are fixedly connected together by using the fixing sleeve 43 and the first connecting rod 42, so that the stirring blade 41 and the upper transmission shaft 114 can synchronously rotate to stir the blood to be treated in the effusion bin 45.

Referring to fig. 2, the bottom surface of the liquid accumulation bin 45 is communicated with the lower hoppers 44 distributed in an array, and the inner diameter of the top ends of the lower hoppers 44 is larger than that of the bottom ends.

In use, the flow rate at which the blood to be treated falls can be increased by making the inside diameter of the top end of the lower hopper 44 larger than the inside diameter of the bottom end.

Referring to fig. 2, the centrifugal assembly 31 includes a centrifugal inner cylinder 313 disposed in the second cavity 16, a centrifugal outer cylinder 311 having a centrifugal function is disposed inside the centrifugal inner cylinder 313, a liquid collecting bucket 312 is fixedly connected to a top end of the centrifugal inner cylinder 313, the liquid collecting bucket 312 is recessed downward, and an inner diameter of the top end of the liquid collecting bucket 312 is greater than an inner diameter of the bottom end.

When in use, after the blood to be treated enters the centrifugal outer cylinder 311 through the liquid collecting bucket 312, the blood to be treated can be centrifuged.

Referring to fig. 5 to 7, the first filter assembly 32 includes a filter screen cylinder 321 disposed in the second cavity 16, wherein the mesh aperture of the top end of the filter screen cylinder 321 is larger than the mesh aperture of the bottom end of the filter screen cylinder, a striking rod 323 reciprocating along the axial direction is disposed inside the filter screen cylinder 321, and the striking rod 323 strikes the inner two sides of the filter screen cylinder 321.

During the use, when striking rod 323 is reciprocating motion along the axial, utilize striking rod 323 to strike the interior both sides of filter screen section of thick bamboo 321, play the effect of vibrations to make the upper end of filter screen section of thick bamboo 321 treat that the blood filters and filter screen section of thick bamboo 321's lower extreme filters the time, can not produce hydrops and jam, the granule can not filter screen section of thick bamboo 321's mesh aperture and produce the jam, improves filter screen section of thick bamboo 321 filterable efficiency.

Referring to fig. 2 and 4, the second filter assembly 20 includes a filter pipe 21 disposed inside the third cavity 12, one end of the filter pipe 21 communicates with the inside of the centrifugal assembly 31, the other end of the filter pipe 21 communicates with the discharge port 14, the filter pipe 21 is composed of a vertical portion, a concave portion and a protruding portion, and the filter membrane 22 is disposed inside the vertical portion of the filter pipe 21.

When in use, the filtering membrane 22 is arranged, so that fine particles in blood to be treated can be filtered, and the filtering effect of the filtering device body 10 is improved.

Referring to fig. 5 to 8, the reciprocating member 50 includes a connecting plate 54 fixed inside the filter screen cylinder 321, the bottom end of the lower rotating shaft 116 penetrates through the connecting plate 54, the bottom end of the lower rotating shaft 116 is fixedly connected with a rotating disc 51, a second connecting rod 53 is fixed on the surface of the rotating disc 51, a second limiting slider 531 is fixedly connected on the surface of one end of the second connecting rod 53, a fixed rod 521 is fixedly connected on the bottom surface of one side of the connecting plate 54 far away from the impact rod 323, a reciprocating plate 52 is hinged on the outer side of the tail end of the fixed rod 521, a limiting sliding groove 522 is formed in the surface of the reciprocating plate 52 in a penetrating manner, and the second limiting slider 531 is matched with the limiting sliding groove 522;

during the use, when lower axis of rotation 116 drives carousel 51 and rotates, carousel 51 drives second connecting rod 53 and second limit slider 531 and rotates, because second limit slider 531 with limit chute 522 phase-match, at the pivoted in-process of second limit slider 531, second limit slider 531 drives reciprocating plate 52 and encloses dead lever 521 and make reciprocating motion.

Referring to fig. 2 and 8, symmetrical fixing seats 322 are fixedly connected to an inner surface of one side of the filter screen cylinder 321, a striking rod 323 penetrates between the two fixing seats 322, a U-shaped limiting member 324 is fixedly connected to one side of the striking rod 323 away from the fixing seat 322, a first limiting slider 523 is fixedly connected to one end of the reciprocating plate 52 close to the U-shaped limiting member 324, and the first limiting slider 523 is matched with the U-shaped limiting member 324.

When the reciprocating plate 52 reciprocates, the reciprocating plate 52 drives the first limiting slider 523 to move along the inner ring of the U-shaped limiting member 324, so as to drive the U-shaped limiting member 324 to drive the striking rod 323 to reciprocate, and strike the inner two sides of the filter screen cylinder 321, so that the filter screen cylinder 321 has a vibration function.

Principle of operation

When the body 10 of the filter device is used for centrifugal filtration of blood to be treated, the blood to be treated is injected into the interior of the liquid accumulating chamber 45 from the inlet 13, the decelerating motor 111 is started, the decelerating motor 111 drives the upper transmission shaft 114 and the lower transmission shaft 116 to rotate, the stirring blade 41 is driven by the decelerating motor 111 to stir the blood to be treated, the stirred blood to be treated reaches the upper end of the filter screen cylinder 321 through the discharging hopper 44, the blood to be treated is firstly filtered by the upper end of the filter screen cylinder 321 to block larger particles, the filtered blood to be treated is secondly filtered after reaching the lower end of the filter screen cylinder 321, and then is guided into the interior of the centrifugal outer cylinder 311 through the liquid collecting hopper 312, the blood to be treated is centrifugally treated, the rotating disc 51 and the second limiting slide block 531 are driven by the lower transmission shaft 116 to rotate, and the reciprocating plate 52 is driven by the second limiting slide block 531 to reciprocate, thereby drive striking pole 323 is reciprocating motion along the axial in the inside of filter screen section of thick bamboo 321, strikes the interior both sides of filter screen section of thick bamboo 321, and then makes filter screen section of thick bamboo 321 possess the vibrations function, avoids filter screen section of thick bamboo 321's surface to produce and blocks up and hydrops, and the pending blood after being centrifuged gets into centrifugal inner tube 313, then gets into the inside of filter tube 21, filters through filtration membrane 22 again, discharges by discharge gate 14.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. Centrifugal hemofiltration treatment is with dual filter equipment, including filter equipment body (10), filter equipment body (10) top is provided with feed inlet (13) that are used for the feeding, the bottom of filter equipment body (10) is provided with discharge gate (14) that are used for the ejection of compact, its characterized in that: the inside of filter equipment body (10) has been seted up from last to down in proper order:

a first cavity (15), said first cavity (15) containing stirring means (40) for stirring the blood to be treated located in the first cavity (15);

a second cavity (16), a centrifugal filter component (30) is accommodated in the second cavity (16), the centrifugal filter component (30) is communicated with the lower part of the stirring device (40) and is used for centrifugally filtering the blood to be processed which enters the second cavity (16) from the first cavity (15), the centrifugal filter component (30) is composed of a centrifugal component (31) and a first filter component (32), the first filter component (32) is provided with a vibration function and is used for primarily filtering the blood to be processed, the centrifugal component (31) is positioned below the first filter component (32) and is used for centrifuging the blood to be processed which is filtered by the first filter component (32),

a third cavity (12), wherein a second filter assembly (20) is arranged in the third cavity (12), is communicated with the lower part of the first filter assembly (32) and is used for filtering the blood to be treated again;

one side of the filtering device body (10) is provided with a driving part (11), the driving part (11) is positioned at the inner output end of the second cavity (16) and drives a reciprocating part (50), and the reciprocating part (50) drives the centrifugal assembly (31) and the stirring device (40) to move.

2. The dual filtration device for centrifugal hemofiltration therapy according to claim 1, characterized in that: the driving part (11) comprises a speed reducing motor (111) used for outputting power, one end, close to the filtering device body (10), of the speed reducing motor (111) is connected with a motor shaft (112), the speed reducing motor (111) serves as a power output end of the speed reducing motor, a first bevel gear (113) is fixed on the outer side of the tail end of the motor shaft (112), one end, far away from the motor shaft (112), of the first bevel gear (113) is meshed with a second bevel gear (115), an upper transmission shaft (114) is fixedly connected to the top surface of the second bevel gear (115), and a lower transmission shaft (116) is fixedly connected to the bottom end of the second bevel gear (115).

3. The dual filtration device for centrifugal hemofiltration therapy according to claim 2, characterized in that: agitating unit (40) are including setting up hydrops storehouse (45) in first cavity (15) for hold the blood of treating in getting into filter equipment body (10) from feed inlet (13), go up the top of transmission shaft (114) and run through the bottom of hydrops storehouse (45) and extend into hydrops storehouse (45), the top outside of going up transmission shaft (114) is provided with synchronous rotation stirring leaf (41) for the stirring blood of treating.

4. The dual filtration device for centrifugal hemofiltration therapy according to claim 2, characterized in that: the outer side of the top end of the upper transmission shaft (114) is fixedly connected with a fixing sleeve (43), the outer side of the fixing sleeve (43) is fixedly provided with first connecting rods (42) distributed in an array mode, and one end, far away from the fixing sleeve (43), of each first connecting rod (42) is fixedly connected with a stirring blade (41).

5. The dual filtration device for centrifugal hemofiltration therapy according to claim 3, characterized in that: the bottom surface of the liquid accumulation bin (45) is communicated with discharging hoppers (44) distributed in an array mode, and the inner diameter of the top end of each discharging hopper (44) is larger than that of the bottom end of each discharging hopper.

6. The dual filtration device for centrifugal hemofiltration therapy according to claim 1, characterized in that: the centrifugal component (31) comprises a centrifugal inner barrel (313) arranged in the second cavity (16), a centrifugal outer barrel (311) with a centrifugal function is arranged inside the centrifugal inner barrel (313), a liquid collecting hopper (312) is fixedly connected to the top end of the centrifugal inner barrel (313), the liquid collecting hopper (312) is sunken downwards, and the inner diameter of the top end of the liquid collecting hopper (312) is larger than the inner diameter of the bottom end.

7. The dual filtration device for centrifugal hemofiltration therapy according to claim 1, characterized in that: first filtering component (32) are including setting up filter screen section of thick bamboo (321) in second cavity (16), the top mesh aperture of filter screen section of thick bamboo (321) is greater than the mesh aperture of bottom, filter screen section of thick bamboo (321) inside is provided with the striking pole (323) that just reciprocating motion is along the axial, striking pole (323) striking filter screen section of thick bamboo's (321) interior both sides.

8. The dual filtration device for centrifugal hemofiltration therapy according to claim 1, characterized in that: the second filtering assembly (20) comprises a filtering pipe (21) arranged inside the third cavity (12), one end of the filtering pipe (21) is communicated with the inside of the centrifugal assembly (31), the other end of the filtering pipe (21) is communicated with the discharging hole (14), the filtering pipe (21) is composed of a vertical portion, a concave portion and a protruding portion, and a filtering film (22) is arranged inside the vertical portion of the filtering pipe (21).

9. The dual filtration device for centrifugal hemofiltration therapy according to claim 2, characterized in that: reciprocating member (50) are including being fixed in inside connecting plate (54) of filter screen section of thick bamboo (321), connecting plate (54) is run through to the bottom of lower rotating shaft (116), just bottom fixedly connected with carousel (51) of lower rotating shaft (116), the fixed surface of carousel (51) has second connecting rod (53), the one end fixed surface of second connecting rod (53) is connected with second limit slide (531), one side bottom surface fixedly connected with dead lever (521) of impact bar (323) are kept away from in connecting plate (54), dead lever (521) end outside articulates there is reciprocating plate (52), spacing spout (522) have been run through to the surface of reciprocating plate (52), second limit slide (531) and spacing spout (522) phase-match.

10. The dual filtration device for centrifugal hemofiltration therapy according to claim 9, characterized in that: the filter screen cylinder is characterized in that the inner surface of one side of the filter screen cylinder (321) is fixedly connected with symmetrical fixing seats (322), two impact rods (323) are arranged between the fixing seats (322) in a penetrating mode, one side of each impact rod (323) far away from the fixing seat (322) is fixedly connected with a U-shaped limiting part (324), one end of each reciprocating plate (52) close to the U-shaped limiting part (324) is fixedly connected with a first limiting sliding block (523), and the first limiting sliding blocks (523) are matched with the U-shaped limiting parts (324).