CN219071514U - Filterable connecting pipe for combined hemodialysis treatment of hemoperfusion - Google Patents

Abstract

The utility model discloses a filterable connecting pipe for combined hemodialysis treatment of blood perfusion, which comprises an arterial blood path pipe, a venous blood path pipe, a blood pump, a perfusion device, a hemodialysis device and an air drip cup, wherein a filter is arranged between the perfusion device and the hemodialysis device and comprises an outer shell, and a column filter screen A and a column filter screen B are nested in the inner part of the outer shell; in the utility model, in the treatment process of purifying the blood of the uremic patient, through the filter arranged between the perfusion device and the hemodialysis device, the metabolites and toxic substances to be removed in the patient body can effectively block micro thrombus, fibrinogen or adsorbent particles through the filter arranged between the perfusion device and the hemodialysis device before being connected to the hemodialysis device, thereby avoiding secondary entering the hemodialysis device, avoiding further entering a venous blood tube and finally entering a human body, and further ensuring that the uremic patient finishes the blood purification treatment on time.

Description

Filterable connecting pipe for combined hemodialysis treatment of hemoperfusion

Technical Field

The utility model relates to a medical connecting pipe, in particular to a filterable connecting pipe for combined hemodialysis treatment of blood perfusion.

Background

As is known, chronic kidney disease has become one of the major public health problems worldwide, CKD progresses to the end stage, kidney function of uremic patients is significantly reduced, hemodialysis is the most common means for treating uremic patients, but researches find that conventional hemodialysis has obvious effect limitation, and complications such as cardiovascular adverse events, osteoporosis, vascular calcification and the like often occur to uremic patients; the blood perfusion and hemodialysis (combined artificial kidney) are widely applied at present, so that the micro-inflammatory state of a patient can be obviously improved, simultaneously, the FGF-23/Klotho axis is regulated, the levels of phosphorus, beta 2 microglobulin, iPTH and FGF-23 are reduced, the level of Klotho protein is increased, and the calcium and phosphorus metabolism of the patient is regulated.

Blood perfusion is a treatment method for introducing blood of a patient from the body to an extracorporeal circulation system, and removing metabolites, toxic substances and medicines to be removed in the body through the adsorption and combination of adsorbents (active carbon, resin and other materials) in a perfusion device; the perfusion device is connected in series before the dialyzer, 2021 edition SOP of standard operation procedure for blood purification recommends using a multifunctional connecting pipeline to connect the perfusion device and the dialyzer together in series, and the disconnection links in the process of pre-flushing and withdrawing the perfusion device can be avoided. The standard operation procedure of blood purification (2021 edition) and the nursing operation guidance of hemodialysis specialized department (2014 edition) recommend the combined artificial kidney treatment for the first two hours, and the blood perfusion device is removed when the serial blood perfusion treatment of the hemodialysis reaches 2.0-2.5 hours, so as to continue the blood perfusion treatment.

The Chinese utility model patent number is: CN201910081978.8, and the patent name is: patent publications on five-layer hemodiayer and method of hemodiayer describe: the blood perfusion device with a five-layer structure utilizes the solid microspheres with selective adsorption function to adsorb uremic toxins in the blood of a patient step by step so as to achieve the aim of purifying the blood; in the process of purifying blood, the blood firstly enhances the anticoagulation effect of the blood through the gel microsphere anticoagulation layer so as to ensure that the blood is not coagulated in the purification process, thereby ensuring the smooth proceeding of blood purification; then the beta 2 microglobulin in blood is effectively removed through the beta 2 microglobulin adsorption layer; then urea in the blood is further decomposed through the urea decomposition layer; NH3 and NH4+ can be generated after urea is decomposed, and the balance of human body electrolyte can be destroyed, so that the ammonia adsorption layer is adopted to achieve the purpose of adsorbing ammonia after the urea is decomposed, and the balance of the electrolyte in blood is ensured; finally, the large hydrophobic pore structure of the activated carbon adsorption layer is utilized to effectively remove bilirubin, creatinine, uric acid, glycoside, phenols, guanidine and organic acid in blood, thereby finally achieving the aim of blood purification. The patent records the blood purification method, and also just proves that in the current medical technology, the metabolic products and toxic substances to be removed in the uremic patient can be adsorbed and purified by adopting a blood perfusion mode, so that the method is the most feasible method in the current technical means for treating the uremic patient.

The Chinese utility model patent number is: cn201410354036.X, and patent name: patent publications on integrated blood purification devices with blood perfusion and hemodialysis structures describe: in the prior art, "[0004] the combined hemodialysis treatment method is to connect a connecting pipe for a conventional hemodialysis device and a hemodialysis device in series to form a separated hemodialysis and hemoperfusion purifying structure. Such a discrete hemodialysis and hemodynamic blood purification structure has the following drawbacks: 1. the dialyzer is easy to pollute when connected with the perfusion device. 2. Unstable connection may cause the connection tube to fall off, causing massive hemorrhage. 3. When the perfusion device is removed and the dialyzer is refilled, the air is exhausted, and the repeated operation has a certain potential safety hazard. The patent technology further describes and clarifies a blood purifying device with a blood perfusion and hemodialysis structure, has universality and irreplaceable effects in the current medical public industry, and provides living opportunities for blood purification of uremic patients; however, at the same time, when a uremic patient is subjected to a blood purification operation by means of blood perfusion and hemodialysis, a series of new problems are brought about, for example: 1. the dialyzer is easy to pollute when connected with the perfusion device. 2. Unstable connection may cause the connection tube to fall off, causing massive hemorrhage. 3. When the perfusion device is removed and the dialyzer is refilled, the air is exhausted, and the repeated operation has a certain potential safety hazard. In response to the above-mentioned drawbacks, a corresponding solution has been proposed in the patent publication of a blood purification device having an integrated blood perfusion and hemodialysis structure.

During several actual clinical procedures, it was also found that:

1. when there is a hypercoagulable state in the patient's blood;

2. under the condition of improper operation, heparinization is insufficient, pre-flushing and exhaust are not thorough, and anticoagulation is insufficient;

3. when the vascular access of the patient is not smooth, the pump is frequently stopped, the pipeline is folded, and other treatment accidents are avoided;

4. when the medicine is transported and stored improperly, the perfusion apparatus coagulates to form micro thrombus, and the adsorbent particles fall off or fibrin falls off;

under the above circumstances, when particulate matter is mixed and enters the hemodialysis machine, it further enters the venous blood vessel, secondary coagulation is induced, resulting in interruption of treatment, and at the same time, waste of blood and potential safety hazard are caused.

The utility model relates to a filterable connecting pipe for blood perfusion combined hemodialysis treatment, which is obtained by summarizing experiences through a plurality of clinical actual combat, thoroughly solves the above-mentioned situations and provides safe and professional blood purification treatment for uremic patients.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a filterable connecting pipe for combined hemodialysis treatment of blood perfusion; in the treatment process of purifying the blood of the uremic patient, the filter arranged between the perfusion device and the hemodialysis device can effectively block micro thrombus, fibrinogen or adsorbent particles, avoid secondary entering the hemodialysis device, avoid further entering the venous blood tube and finally enter the human body before the metabolic products and toxic substances to be removed in the patient body are connected to the hemodialysis device, so that the uremic patient can complete the blood purification treatment on time.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a filterable connecting pipe for combined hemodialysis treatment of blood perfusion, which comprises an arterial blood path pipe, a venous blood path pipe, a blood pump, a perfusion device, a hemodialysis device and an air drip cup, wherein a filter is arranged between the perfusion device and the hemodialysis device, the filter comprises an outer shell, a column filter screen A and a column filter screen B are nested in the inner part of the outer shell, a through hole A is arranged on one end side surface of the column filter screen A, a reinforcing base A is fixed outside the through hole A, a column lead screw is fixed on the reinforcing base A, and the column lead screw penetrates through the through hole A and extends to the inner part of the column filter screen A; the other side surface of the column filter screen A is connected with a silica gel ring A, and the diameter length dimension of the inner ring opening of the silica gel ring A is equal to the diameter length dimension of the inner wall of the cross section of the column filter screen A; the outer part of one end of the column filter screen A is fixedly connected with a fixed angle A, the outer side of the fixed angle A is fixedly connected with a filter screen, an L-shaped support body is integrally cast at the edge of the other side face of the filter screen, one side end part of the L-shaped support body is nested in a buffer soft body, the buffer soft body is in a cylindrical structure in appearance, and the inside of the buffer soft body is hollow;

the inner side surface of one end of the column filter screen B is provided with a column silk groove, the outside of the column silk groove presents a cylinder structure, the inside of the column silk groove is provided with a first concave silk groove matched with a first convex silk thread on the outside of the column screw rod, the other end of the column filter screen B is connected with a silica gel ring B, and the diameter and the length of an inner ring opening of the silica gel ring B are equal to those of the inner wall of the cross section of the column filter screen B; the column silk groove penetrates through the column filter screen B, penetrates through the silica gel ring B and extends to the outside;

one end of the outer shell is a closing surface, three through holes penetrate through the closing surface, and the three through holes are respectively connected with a threaded joint A, an external plug-in joint A and an internal plug-in joint A; the other end of the outer shell is an opening surface, a second raised thread is arranged on the outer surface of the other end of the outer shell, a rubber cover is arranged on the outer side of the opening surface, and a second recessed thread groove corresponding to the second raised thread is arranged on the inner wall of the rubber cover.

As a preferable technical scheme of the utility model, one end side surface of the column filter screen B is provided with three through holes, and the three through holes are respectively connected with a threaded joint B, an external plug-in joint B and an internal plug-in joint B.

As a preferable technical scheme of the utility model, a fixed angle B is arranged on the outer surface of one end of the cylinder filter screen B, and a U-shaped rotating handle is connected to the outer part of the fixed angle B.

As a preferable technical scheme of the utility model, the outer ports of the screw-type joint a, the external plug-type joint a, the internal plug-type joint a, the screw-type joint B, the external plug-type joint B and the internal plug-type joint B are all provided with plug caps.

As a preferable technical scheme of the utility model, the arterial blood tube, the venous blood tube, the blood pump, the perfusion device, the hemodialysis device and the filter are all connected in series through the infusion hose.

Compared with the prior art, the utility model has the following beneficial effects:

1. in the utility model, in the process of purifying and treating the blood of the uremic patient, through the filter arranged between the perfusion device and the hemodialysis device, under a plurality of conditions mentioned in the background art, metabolites and toxic substances to be removed in the patient body can effectively block micro thrombus, fibrinogen or adsorbent particles through the filter arranged between the perfusion device and the hemodialysis device before being connected to the hemodialysis device, thereby avoiding secondary entering the hemodialysis device, further entering a venous blood tube, and finally entering a human body, and further ensuring that the uremic patient finishes the blood purification treatment on time.

2. According to the utility model, the blood of the uremic patient treated by the perfusion device can be introduced into the column filter screen B and slowly leaked through the plurality of leak holes arranged on the column filter screen B, and the blood of the uremic patient in the column filter screen B is also drained into the column filter screen A through the silica gel ring B and the silica gel ring A, so that the column filter screen A also achieves the effect of slowly leaking through the plurality of leak holes of the column filter screen B, and is a primary filtering process, and then secondary filtering is carried out through the filter screen, the whole filter screen is precise in structure, the aperture of the filter screen body is larger than the aperture of the plurality of leak holes on the column filter screen A and the column filter screen B, the effective contact area of the filter screen is small, the number of the leak holes participating in filtering blood is small, the effective contact area of the column filter screen A is large, the number of leak holes participating in filtering blood is large, the leak holes can be small, the filtering effect is increased, the filtering rate is slow, the effective contact area is large, the number of the leak holes participating in filtering blood is large, the leak holes are balanced, the relative filtering speed is equal to the filtering speed of the filter screen, the whole urine is purified, the aperture of the whole uremic patient is purified, the size of the blood is purified, and the blood is filtered, and the blood is also has the effect of the blood is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a flow chart of the treatment steps of the present utility model;

FIG. 2 is a schematic perspective view of a filter according to the present utility model;

FIG. 3 is one of the schematic front view of the filter of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A in accordance with the present utility model;

FIG. 5 is a right side view of the filter of the present utility model;

FIG. 6 is a second schematic diagram of the front view of the filter according to the present utility model;

FIG. 7 is a schematic diagram showing the split state of the cylindrical filter A and the cylindrical filter B according to the present utility model;

FIG. 8 is a schematic diagram showing the combination of a cylindrical filter A and a cylindrical filter B according to the present utility model;

FIG. 9 is a schematic diagram showing the integrated state of the cylindrical filter A and the cylindrical filter B according to the present utility model;

fig. 10 is a schematic perspective view of a cylindrical filter a and a cylindrical filter B according to the present utility model.

In the figure: 1. arterial blood tube; 2. venous blood line; 3. a blood pump; 4. a perfusion device; 5. a hemodialysis machine; 6. a filter; 7. an outer housing; 8. a column filter screen A; 9. a column filter screen B; 10. a through hole A; 11. reinforcing a base A; 12. a column screw rod; 13. a silica gel ring A; 14. fixing the angle A; 15. filtering and screening; 16. an L-shaped support; 17. buffering software; 18. a column silk groove; 19. a first raised thread; 20. a first concave wire groove; 21. a silica gel ring B; 22. a closing surface; 23. a threaded joint A; 24. an external plug-in type joint A; 25. an interpolation type joint A; 26. an opening surface; 27. a second raised thread; 28. a rubber cap; 29. a second concave wire groove; 30. a threaded joint B; 31. an external plug-in type joint B; 32. an interpolation type joint B; 33. fixing an angle B; 34. u-shaped rotary handle; 35. an infusion hose; 36. an air drip cup.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1

As shown in fig. 1-10, the utility model provides a filterable connecting pipe for combined hemodialysis treatment of blood perfusion, which comprises an arterial blood tube 1, a venous blood tube 2, a blood pump 3, a perfusion device 4, a hemodialysis device 5 and an air drip cup 36, wherein a filter 6 is arranged between the perfusion device 4 and the hemodialysis device 5, the filter 6 comprises an outer shell 7, a column filter screen A8 and a column filter screen B9 are nested in the inner part of the outer shell 7, a through hole a10 is arranged at one end side surface of the column filter screen A8, a reinforcement base a11 is fixed outside the through hole a10, a column screw rod 12 is fixed on the reinforcement base a11, and the column screw rod 12 penetrates through the through hole a10 and extends to the inner part of the column filter screen A8; the other side surface of the column filter screen A8 is connected with a silica gel ring A13, and the diameter and length dimensions of the inner ring opening of the silica gel ring A13 are equal to those of the inner wall of the cross section of the column filter screen A8; the outside of one end of the column filter screen A8 is fixedly connected with a fixed angle A14, the outside of the fixed angle A14 is fixedly connected with a filter screen 15, an L-shaped support body 16 is integrally cast at the edge of the other side surface of the filter screen 15, one side end part of the L-shaped support body 16 is nested in a buffer soft body 17, the buffer soft body 17 presents a cylindrical structure in appearance, and the inside of the buffer soft body 17 is hollow;

the inner side surface of one end of the column filter screen B9 is provided with a column silk groove 18, the outside of the column silk groove 18 presents a cylindrical structure, a first concave silk groove 20 matched with a first convex silk thread 19 outside the column screw rod 12 is arranged inside the column silk groove 18, the other end of the column filter screen B9 is connected with a silica gel ring B21, and the diameter length size of an inner ring opening of the silica gel ring B21 is equal to the diameter length size of the inner wall of the cross section of the column filter screen B9; the column wire groove 18 penetrates through the column filter screen B9 and simultaneously penetrates through the silica gel ring B21 and extends to the outside;

one end of the outer shell 7 is a closing surface 22, three through holes penetrate through the closing surface 22, and the three through holes are respectively connected with a threaded joint A23, an external plug-in joint A24 and an internal plug-in joint A25; the other end of the outer shell 7 is provided with an opening surface 26, the outer surface of the other end of the outer shell 7 is provided with a second raised thread 27, the outer side of the opening surface 26 is provided with a rubber cover 28, and the inner wall of the rubber cover 28 is provided with a second recessed thread groove 29 corresponding to the second raised thread 27.

Further, three through holes are formed in one end side surface of the column filter screen B9, and the three through holes are respectively connected with a threaded joint B30, an external plug-in joint B31 and an internal plug-in joint B32; the screw thread type connector B30 adopts a screw thread connection mode commonly used by medical equipment, and an external plug type connector B31 (shown in an attached drawing 3 of the specification) has the structure that a butt joint hole with large external opening diameter and small internal opening diameter and a plurality of types of infusion hoses 35 are wrapped, meanwhile, the butt joint hole with small internal diameter is inserted into the infusion hose 35 to be abutted again to form a double-layer wrapping structure, so that the butt joint efficiency of the external infusion hose 35 is improved, and the butt joint of pipelines with more types is met; similarly, the plug-in connector B32 is the connector with the smallest caliber, and is used for selecting the type connector when the caliber of the infusion hose 35 to be butted is larger than that of the plug-in connector B32 according to the actual situation.

Further, a fixed angle B33 is arranged on the outer surface of one end of the column filter screen B9, a U-shaped rotary handle 34 is connected to the outer part of the fixed angle B33, and the L-shaped support body 16, the filter screen 15, the fixed angle A14, the column filter screen A8, the column filter screen B9 and other structures can be pushed into the outer shell 7 through the fixed angle B33 and the U-shaped rotary handle 34, so that the configuration and assembly process of the filter 6 is completed; similarly, when the filter 6 is detached, the fixing angle B33 and the U-shaped rotary handle 34 are pulled out, and the cylindrical filter screen A8 and the cylindrical filter screen B9 are detached, so that the cleaning process of the filtered impurities is completed (refer to fig. 7, 8 and 9).

Further, the external ports of the screw-type joint a23, the external plug-type joint a24, the internal plug-type joint a25, the screw-type joint B30, the external plug-type joint B31 and the internal plug-type joint B32 are all provided with plug caps, the plug cap structure is shown in fig. 3, the structural characteristics of the plug cap structure are clearly described in fig. 3 of the specification, but no numbering mark is carried out, and the plug caps are arranged to prevent solid particles, liquid and gas substances from entering and exiting the filter 6, so that the pollution is caused.

Further, the arterial blood tube 1, the venous blood tube 2, the blood pump 3, the perfusion device 4, the hemodialysis device 5, the air drip cup 36 and the filter 6 are all connected in series through the infusion hose 35 to form the necessary composition structure of the blood purification treatment scheme of the uremic patient together, and meanwhile, the blood purification treatment scheme also comprises a clip and the like (as technical characteristics known in the technical field, not labeled in the figure and not repeated in the description) which are conventionally matched for use.

Working principle: the blood pump 3 pumps blood from the body of a uremic patient out of the arterial blood tube 1, the blood pump enters the external environment, the blood is transported by the infusion hose 35 in sequence, simultaneously, the injection of an anticoagulant is matched, the filtered air is led into the cylinder filter screen B9 through the air drip cup 36, the filtered air is led into the cylinder filter screen B9 again, the filtered air is led into the filter 6 through the cylinder filter screen B4, the threaded connector A23, the external connector A24, the internal connector A25, the threaded connector B30, the external connector B31 and the internal connector B32 are selected according to actual conditions, the threaded connector B30, the external connector B31 and the internal connector B32 are connected, the threaded connector B30, the external connector B31 and the internal connector B32 penetrate through the rubber cover 28, the external infusion hose 35 is connected, the uremic patient blood processed through the cylinder filter screen B9 is further led into a plurality of leak holes formed in the cylinder filter screen B9, simultaneously, the blood of the uremic patient in the cylinder filter screen B9 is slowly leaked through the cylinder filter screen B21 and the cylinder filter screen A8 according to actual conditions, the cylinder of the cylinder filter screen B8 is also led into the cylinder filter screen A8 through the silica gel ring A13, and the cylinder filter screen B8 is a plurality of leak holes is a plurality of filter screen 15, and the filter effect of the cylinder filter screen B is a filter screen after the leakage is achieved, and the filter effect is a filter that a filter is a filter the aperture of the body of the filtering screen 15 is larger than the aperture of a plurality of leakage holes on the bodies of the column filter screen A8 and the column filter screen B9, the effective contact area of the filtering screen 15 is small, the number of the holes participating in filtering blood is also small, the effective contact area of the column filter screen A8 and the column filter screen B9 is large, the number of the leakage holes participating in filtering blood is large, the aperture of the leakage holes is small, the filtering effect can be increased by slow leakage, the caused filtering rate is slow and the effective contact area is large, the number of the leakage holes participating in filtering blood is large to balance, and reaches a relative filtration speed equivalent to that of the filtration sieve 15), and finally is output to an external transfusion hose 35 by a screw-type connector A23, an external plug-in connector A24 and an internal plug-in connector A25 at the end part of the closing surface 22, then enters the hemodialysis device 5 again, enters the air drip cup 36 again by the hemodialysis device 5 for air blocking, and finally is guided into the body of the uremic patient through the venous blood tube 2, thereby completing the balance operation of the blood circulation in the uremic patient and the external blood filtration circulation.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides a but blood perfusion combines filterable connecting pipe of hemodialysis treatment usefulness, includes arterial blood pipe (1), venous blood pipe (2), blood pump (3), perfusion ware (4), hemodialysis ware (5) and air drip cup (36), its characterized in that, be provided with filter (6) between perfusion ware (4) and hemodialysis ware (5), filter (6) include shell body (7), cylinder filter screen A (8) and cylinder filter screen B (9) have been nested in the inside of shell body (7), cylinder filter screen A (8) one end side is equipped with through-hole A (10), and the outside of this through-hole A (10) is fixed with reinforcement base A (11), be fixed with cylinder lead screw (12) on reinforcement base A (11), and this cylinder lead screw (12) run through-hole A (10) to extend to the inside of cylinder filter screen A (8); the other side surface of the column filter screen A (8) is connected with a silica gel ring A (13), and the diameter and length dimensions of the inner ring opening of the silica gel ring A (13) are equal to those of the inner wall of the cross section of the column filter screen A (8); the cylinder filter screen is characterized in that a fixed angle A (14) is fixedly connected to the outside of one end of the cylinder filter screen A (8), a filter screen (15) is fixedly connected to the outside of the fixed angle A (14), an L-shaped support body (16) is integrally cast at the edge of the other side face of the filter screen (15), one side end part of the L-shaped support body (16) is nested in a buffer soft body (17), the appearance of the buffer soft body (17) is of a cylinder structure, and the inside of the buffer soft body is hollow;

the inner side surface of one end of the column filter screen B (9) is provided with a column silk groove (18), the outside of the column silk groove (18) presents a cylindrical structure, a first concave silk groove (20) matched with a first convex silk thread (19) on the outside of the column screw rod (12) is arranged in the column silk groove (18), the other end of the column filter screen B (9) is connected with a silica gel ring B (21), and the diameter length size of the inner ring opening of the silica gel ring B (21) is equal to the diameter length size of the inner wall of the cross section of the column filter screen B (9); the column silk groove (18) penetrates through the column filter screen B (9) and penetrates through the silica gel ring B (21) and extends to the outside;

one end of the outer shell (7) is a closing surface (22), three through holes penetrate through the closing surface (22), and the three through holes are respectively connected with a threaded joint A (23), an external plug-in joint A (24) and an internal plug-in joint A (25); the other end of the outer shell (7) is an opening surface (26), a second raised thread (27) is arranged on the outer surface of the other end of the outer shell (7), a rubber cover (28) is arranged on the outer side of the opening surface (26), and a second recessed thread groove (29) corresponding to the second raised thread (27) is formed in the inner wall of the rubber cover (28).

2. The filterable connecting tube for combined hemodialysis treatment according to claim 1, wherein three through holes are opened at one end side of the column filter screen B (9), and the three through holes are respectively connected with a screw-type connector B (30), an external plug-in connector B (31) and an internal plug-in connector B (32).

3. The filterable connecting tube for combined hemodialysis treatment of hemoperfusion according to claim 1, wherein a fixed angle B (33) is provided on an outer surface of one end of the cylindrical filter screen B (9), and a U-shaped knob (34) is connected to the outside of the fixed angle B (33).

4. The filterable connecting tube for combined hemodialysis treatment according to claim 1, wherein the external ports of the screw-type connector a (23), the external plug-type connector a (24), the internal plug-type connector a (25), the screw-type connector B (30), the external plug-type connector B (31) and the internal plug-type connector B (32) are provided with plug caps.

5. The connection tube for combined hemodialysis treatment according to claim 1, wherein the arterial blood line (1), venous blood line (2), blood pump (3), perfusion device (4), hemodialysis device (5) and filter (6) are all connected in series by an infusion hose (35).

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