CN220735884U - Dialysis pipeline and blood purification system - Google Patents
Dialysis pipeline and blood purification system Download PDFInfo
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- CN220735884U CN220735884U CN202321599093.5U CN202321599093U CN220735884U CN 220735884 U CN220735884 U CN 220735884U CN 202321599093 U CN202321599093 U CN 202321599093U CN 220735884 U CN220735884 U CN 220735884U
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- 238000000502 dialysis Methods 0.000 title claims abstract description 61
- 239000008280 blood Substances 0.000 title claims abstract description 38
- 210000004369 blood Anatomy 0.000 title claims abstract description 38
- 238000000746 purification Methods 0.000 title claims abstract description 17
- 230000010412 perfusion Effects 0.000 claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 230000001681 protective effect Effects 0.000 claims description 28
- 238000005070 sampling Methods 0.000 claims description 18
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Abstract
The utility model relates to the field of instruments for treating body fluid, in particular to a dialysis pipeline and a blood purification system, wherein the dialysis pipeline is provided with an A pipeline, a B pipeline, a C pipeline, a D pipeline, an E pipeline, an F pipeline, a G pipeline, an H pipeline, an A tee joint, a B tee joint, a C tee joint and a liquid pot; the liquid pot is provided with a filter screen; A. b, C, D, E, F, G and H pipeline are equipped with the switch that is used for controlling the pipeline break-make respectively. The small blood clots generated by the adsorption resin of the perfusion device are filtered out by arranging the liquid pot with the filter screen between the perfusion device and the dialyser, so that the blocking of the dialyser caused by the small blood clots is avoided, and the safety and the effectiveness of dialysis treatment are not influenced.
Description
Technical Field
The utility model relates to the field of instruments for treating body fluids, in particular to a dialysis pipeline and a blood purification system.
Background
Acute toxicity uses dialysis and blood perfusion to accelerate the excretion of toxic and metabolic products in the body, maintain the balance of body fluids, electrolytes and acids and bases, and combination therapy is also an effective measure in treating acute toxic liver and kidney failure. Dialysis therapy is better in terms of peritoneal dialysis and hemodialysis. The mechanism of action is to precipitate the poison (metabolite) in the blood from the dialysate by using the theory of membrane balance. The blood perfusion therapy method leads the blood to directly pass through the activated carbon adsorption resin, leads the poison in the blood to be adsorbed on the resin, and accelerates the elimination of the poison in the body.
At present, a serial connection mode of a hemodialysis device and a hemoperfusion device is often adopted for treating uremic patients clinically. The perfusion device and the dialyzer are connected in series firstly, the perfusion device is disassembled after combined treatment is carried out for 2 hours, and then the dialysis treatment is continued for 2 hours by using the dialyzer alone. The treatment mode can reduce complications of uremic patients, combines the advantages of the two treatment methods, and can achieve better treatment effect. But in practice some technical problems are often encountered. For example: (1) The adsorbent in the hemodiafiltration device is generally neutral macroporous adsorption resin treated by a special process, the hemodiafiltration device and the hemodiafiltration device are used in series, and in the pre-flushing process before treatment, if normal saline firstly passes through the hemodiafiltration device and then enters the dialyzer through a pipeline, the normal saline passing through the hemodiafiltration device can cause secondary pollution to the dialyzer, and resin fragments and small particles falling off from the hemodiafiltration device can cause hole blocking of the dialyzer, thereby influencing the effectiveness of the dialyzer and bringing other potential safety hazards. (2) After the perfusion device and the dialyzer are serially connected for 2 hours, the perfusion device is required to be dismantled and the dialyzer is simply used for dialysis, the connecting end part of the dialyzer and the end part of the dialysis tube of a patient are inevitably exposed in the air in the process of dismantling the tube, and bacteria, dust and the like in the air easily enter the dialyzer and the blood tube through the open end part to cause pollution or infection, so that unnecessary injury is caused to the patient. (3) In recent years, animal experiments have found that adsorption resins in the perfusion apparatus may exhibit a phenomenon in which particles fall off, adsorb, or activate certain blood components. The blood perfusion device contacted with circulating blood for a large area and long time can generate coagulated small blood clots in the treatment for up to 2 hours, and the coagulated small blood clots enter the dialyzer along with blood in a dialysis pipeline in the dialysis treatment, so that hollow fibers in the dialyzer block holes, and the safety and the effectiveness of the dialysis treatment are affected.
Disclosure of Invention
The utility model provides a dialysis pipeline and a blood purification system, which are used for solving the technical problems that in the prior art, small blood clots generated by adsorption resin of a perfusion device enter the dialyzer to cause hole blockage of hollow fibers, thereby influencing the safety and effectiveness of dialysis treatment.
The first aspect of the present utility model provides a dialysis circuit comprising:
pipeline A, pipeline B, pipeline C, pipeline D, pipeline E, pipeline F, pipeline G, pipeline H, tee joint A, tee joint B, tee joint C and liquid pot;
the first end of the tee joint A is connected with the output end of the pipeline A, the second end of the tee joint A is connected with the input end of the pipeline B, and the third end of the tee joint A is connected with the input end of the pipeline C;
the first end of the tee joint B is connected with the output end of the pipeline C, the second end of the tee joint B is connected with the first end of the pipeline D, and the third end of the tee joint B is connected with one end of the pipeline E;
the first end of the C tee is connected with the other end of the E pipeline, the second end of the C tee is connected with the output end of the F pipeline, and the third end of the C tee is connected with the input end of the G pipeline;
the input end of the liquid kettle is connected with the output end of the G pipeline, the output end of the liquid kettle is connected with the input end of the H pipeline, and the liquid kettle is provided with a filter screen;
the pipeline A, the pipeline B, the pipeline C, the pipeline D, the pipeline E, the pipeline F, the pipeline G and the pipeline H are respectively provided with an a switch, a B switch, a C switch, a D switch, an E switch, an F switch, a G switch and an H switch for controlling the on-off of the pipelines.
In a first possible implementation of the first aspect, the dialysis circuit further includes:
the output end of the I pipeline is connected with the input end of the liquid kettle;
the I pipeline is provided with an I switch for controlling the on-off of the pipeline.
With reference to the first possible implementation of the first aspect, in a second possible implementation of the first aspect, the dialysis circuit further includes:
j pipeline and sampling joint;
the first end of this sampling joint is connected with the output of this J pipeline, and the second end is connected with the input of this F pipeline, and the third end is used for the sampling.
With reference to the second possible implementation of the first aspect, in a third possible implementation of the first aspect, the dialysis circuit further includes:
the connector comprises a connector female head, a connector female head plug, an A connector, a B connector, a C connector, a multipurpose connector, an A protective cap, a B protective cap, a C protective cap, a D protective cap, a luer connector and a circulating connector;
the output end of the joint female head is connected with the input end of the pipeline A, and the input end of the joint female head is connected with the plug of the joint female head in a matched manner;
the input end of the connector A is connected with the output end of the pipeline B, and the output end is connected with the protective cap A in a matched manner;
the output end of the joint B is connected with the input end of the J pipeline, and the input end of the joint B is connected with the protective cap B in a matched manner;
the input end of the C connector is connected with the output end of the H pipeline, and the output end of the C connector is connected with the C protective cap in a matched manner;
the output end of the multipurpose joint is connected with the input end of the I pipeline, and the input end of the multipurpose joint is connected with the D protective cap in a matched manner;
the luer connector has an input end connected to the second end of the D pipeline and an output end connected to the input end of the circulation connector.
With reference to the third possible implementation dialysis circuit of the first aspect, in a fourth possible implementation dialysis circuit of the first aspect, the method further includes:
and the input end of the waste liquid bag is used for being connected with the output end of the circulating joint.
In combination with the first aspect of the present utility model, the first possible implementation of the first aspect of the present utility model, the second possible implementation of the first aspect of the present utility model, the third possible implementation of the first aspect of the present utility model, or the fourth possible implementation of the first aspect of the present utility model, in the fifth possible implementation of the first aspect of the present utility model, the a switch, the b switch, the c switch, the d switch, the e switch, the f switch, the g switch, the h switch, and the i switch are all tube clamps.
In a second aspect, the present utility model provides a blood purification system comprising:
the perfusion, the dialyzer and any one of the possible implementations of the dialysis tubing provided in the first aspect;
the input end of the perfusion device is connected with the output end of the pipeline B, and the output end is connected with the input end of the pipeline F;
the input end of the dialyzer is connected with the output end of the H pipeline.
In a first possible implementation of the second aspect, when the perfusion apparatus is pre-flushed, the input end of the waste liquid bag is connected to the output end of the circulation connector, the a switch, the b switch, the f switch, the e switch and the d switch are in an open state, and the c switch, the g switch, the h switch and the i switch are in a closed state;
when the dialyzer is pre-flushed, the a switch, the c switch, the e switch, the g switch and the h switch are in an open state, and the b switch, the f switch, the d switch and the i switch are in a closed state.
In a second possible implementation of the blood purification system according to the second aspect, when the perfusion and dialysis combined therapy is performed, the a switch, the b switch, the f switch, the g switch, and the h switch are in an on state, and the c switch, the d switch, the e switch, and the i switch are in an off state.
In a third possible implementation of the second aspect, the a switch, the c switch, the e switch, the g switch, and the h switch are in an on state, and the b switch, the f switch, the d switch, and the i switch are in an off state when the pure dialysis treatment is performed
From the above technical solutions, the embodiment of the present utility model has the following advantages:
the dialysis pipeline provided by the utility model is provided with an A pipeline, a B pipeline, a C pipeline, a D pipeline, an E pipeline, an F pipeline, a G pipeline, an H pipeline, an A tee joint, a B tee joint, a C tee joint and a liquid kettle; the first end of the tee joint A is connected with the output end of the pipeline A, the second end of the tee joint A is connected with the input end of the pipeline B, and the third end of the tee joint A is connected with the input end of the pipeline C; the first end of the tee joint B is connected with the output end of the pipeline C, the second end of the tee joint B is connected with the first end of the pipeline D, and the third end of the tee joint B is connected with one end of the pipeline E; the first end of the C tee joint is connected with the other end of the E pipeline, the second end of the C tee joint is connected with the output end of the F pipeline, and the third end of the C tee joint is connected with the input end of the G pipeline; the input end of the liquid kettle is connected with the output end of the G pipeline, the output end of the liquid kettle is connected with the input end of the H pipeline, and the liquid kettle is provided with a filter screen; the pipeline A, the pipeline B, the pipeline C, the pipeline D, the pipeline E, the pipeline F, the pipeline G and the pipeline H are respectively provided with an a switch, a B switch, a C switch, a D switch, an E switch, an F switch, a G switch and an H switch for controlling the on-off of the pipelines. The input end of the perfusion device is connected with the output end of the B pipeline, the output end of the perfusion device is connected with the input end of the F pipeline, the input end of the dialyser is connected with the output end of the H pipeline, and the a switch, the B switch, the F switch, the G switch and the H switch are opened, and the c switch, the d switch and the e switch are closed, so that blood flows through the A pipeline, the B pipeline, the perfusion device, the F pipeline, the G pipeline, the liquid pot, the H pipeline and the dialyser in sequence, and small blood clots generated by the adsorption resin of the perfusion device are filtered through the liquid pot with a filter screen arranged between the perfusion device and the dialyser, thereby avoiding the blockage of the dialyser caused by the small blood clots, and ensuring that the safety and the effectiveness of dialysis treatment are not influenced.
Meanwhile, the dialyser and the perfusion device are pre-flushed independently, physiological saline flowing through the perfusion device cannot flow into the dialyser, and the dialyser cannot be blocked by resin fragments or small particles falling off from the perfusion device, so that the effectiveness of the dialyser is not affected.
In addition, the on-off of the pipeline can be controlled through the switch to be switched from the serial working state of the perfusion device and the dialyzer to the independent working state of the dialyzer, and the pipeline is not required to be dismantled, so that pollution or infection caused by the exposure of the end part of the pipeline to the air is avoided.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural view of a dialysis circuit according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a blood purification system according to an embodiment of the present utility model;
wherein:
1. pipeline A2, pipeline B3 and pipeline C
4. D pipeline 5, E pipeline 6 and F pipeline
7. G pipeline 8, H pipeline 9 and I pipeline
10. J pipeline 11, A tee 12, B tee
13. C three-way 14, a switch 15, b switch
16. c switch 17, d switch 18, e switch
19. f switch 20, g switch 21, h switch
22. i switch 23, connector female head 24, connector female head plug
25. A-joint 26, B-joint 27, C-joint
28. Multipurpose joint 29, A protective cap 30 and B protective cap
31. C-cap 32, D-cap 33, luer fitting
34. Circulation joint 35, sampling joint 36, liquid pot
37. Waste liquid bag 38, perfusion device 39, dialyzer.
Detailed Description
The embodiment of the utility model provides a dialysis pipeline and a blood purification system, which are used for solving the technical problems that in the prior art, small blood clots generated by adsorption resin of a perfusion device enter the dialyzer to cause the hole blockage of hollow fibers, thereby influencing the safety and the effectiveness of dialysis treatment.
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the embodiments of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, interchangeably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the terms in the embodiments of the present application will be understood by those of ordinary skill in the art in a specific context.
At present, a serial connection mode of a hemodialysis device and a hemoperfusion device is often adopted for treating uremic patients clinically. But in practice some technical problems are often encountered. For example: (1) The adsorbent in the hemodiafiltration device is generally neutral macroporous adsorption resin treated by a special process, the hemodiafiltration device and the hemodiafiltration device are used in series, and in the pre-flushing process before treatment, if normal saline firstly passes through the hemodiafiltration device and then enters the dialyzer through a pipeline, the normal saline passing through the hemodiafiltration device can cause secondary pollution to the dialyzer, and resin fragments and small particles falling off from the hemodiafiltration device can cause hole blocking of the dialyzer, thereby influencing the effectiveness of the dialyzer and bringing other potential safety hazards. (2) After the perfusion device and the dialyzer are serially connected for 2 hours, the perfusion device is required to be dismantled and the dialyzer is simply used for dialysis, the connecting end part of the dialyzer and the end part of the dialysis tube of a patient are inevitably exposed in the air in the process of dismantling the tube, and bacteria, dust and the like in the air easily enter the dialyzer and the blood tube through the open end part to cause pollution or infection, so that unnecessary injury is caused to the patient. (3) In recent years, animal experiments have found that adsorption resins in the perfusion apparatus may exhibit a phenomenon in which particles fall off, adsorb, or activate certain blood components. The blood perfusion device contacted with circulating blood for a large area and long time can generate coagulated small blood clots in the treatment for up to 2 hours, and the coagulated small blood clots enter the dialyzer along with blood in a dialysis pipeline in the dialysis treatment, so that hollow fibers in the dialyzer block holes, and the safety and the effectiveness of the dialysis treatment are affected.
Example 1
Referring to fig. 1-2, a dialysis circuit provided in an embodiment of the present utility model includes:
pipeline A1, pipeline B2, pipeline C3, pipeline D4, pipeline E5, pipeline F6, pipeline G7, pipeline H8, tee 11A, tee 12B, tee 13C and liquid pot 36; the first end of the tee joint A11 is connected with the output end of the pipeline A1, the second end is connected with the input end of the pipeline B2, and the third end is connected with the input end of the pipeline C3; the first end of the tee joint 12 is connected with the output end of the pipeline 3C, the second end is connected with the first end of the pipeline 4D, and the third end is connected with one end of the pipeline 5E; the first end of the C tee 13 is connected with the other end of the E pipeline 5, the second end is connected with the output end of the F pipeline 6, and the third end is connected with the input end of the G pipeline 7; the input end of the liquid pot 36 is connected with the output end of the G pipeline 7, the output end is connected with the input end of the H pipeline 8, and the liquid pot 36 is provided with a filter screen; the pipeline A1, the pipeline B2, the pipeline C3, the pipeline D4, the pipeline E5, the pipeline F6, the pipeline G7 and the pipeline H8 are respectively provided with an a switch 14, a B switch 15, a C switch 16, a D switch 17, an E switch 18, an F switch 19, a G switch 20 and an H switch 21 for controlling the on-off of the pipelines.
It should be noted that:
the output end of the pipeline B2 is used for connecting with the input end of the perfusion device 38; the input end of the F pipeline 6 is used for connecting with the output end of the perfusion device 38; the output of the H line 8 is connected to the input of a dialyzer 39.
The D-line 4 has several functions: 1) When the perfusion device 38 is pre-flushed, the second end of the perfusion device is connected with the waste liquid bag 37 to collect waste liquid; 2) When combined perfusion and dialysis treatment is performed, the second end of the combined perfusion and dialysis treatment is used as a fluid supplementing port, and fluid is supplemented to the perfusion device 38 through the fluid supplementing port; 3) The second end of the perfusion tube can also be used as a blood return port, so that the blood flowing out of the perfusion tube 38 directly flows back to the human body through the blood return port, and the closed blood return and the simple perfusion treatment are realized.
The beneficial effects of this embodiment include:
(1) the small blood clots generated by the adsorption resin of the perfusion device 38 are filtered out by arranging the liquid pot 36 with the filter screen between the perfusion device 38 and the dialyzer 39, so that the blocking of the dialyzer 39 caused by the small blood clots is avoided, and the safety and the effectiveness of dialysis treatment are not influenced.
(2) The pre-flushing of the dialyzer 39 and the perfusion device 38 is performed independently, the physiological saline flowing through the perfusion device 38 does not flow into the dialyzer 39, and the dialyzer 39 is not blocked by resin fragments or small particles falling off from the perfusion device 38, so that the effectiveness of the dialyzer 39 is not affected.
(3) The on-off of the pipeline can be controlled through the switch to switch from the serial working state of the perfusion device 38 and the dialyzer 39 to the independent working state of the dialyzer 39, and the pipeline is not required to be dismantled, so that pollution or infection caused by the exposure of the end part of the pipeline to the air is avoided.
(4) The input end of the I pipeline 9 can be used as a fluid supplementing port, so that fluid can be supplemented to the dialyzer 39 through the fluid supplementing port, fluid supplementing is convenient, and fluid supplementing efficiency is improved.
(5) The input end of the I line 9 may serve as a pre-dilution line interface, with which the pre-dilution line is connected to pre-dilute the blood, which interface is closer to the dialyzer 39, improving dilution efficiency.
(6) The second end of the D-line 4 may function as a blood return port, allowing blood flowing through the perfusion apparatus 38 to return to the body through the blood return port, thus achieving simple perfusion treatment and increasing functional diversity.
(7) The physiological saline consumption and the operation time of medical staff are reduced only by pre-flushing twice, and in the process of pre-flushing twice, the opening and closing of different switches are only controlled, so that the operation is simple.
Optimizing: the output end of the dialysis pipeline is also provided with an I pipeline 9,I pipeline 9 which is connected with the input end of the liquid pot 36; the I pipeline 9 is provided with an I switch 22 for controlling the on-off of the pipeline. After the I pipeline 9 is additionally arranged, the input end of the I pipeline 9 can supplement liquid to the dialyzer 39, the input end of the I pipeline 9 is closer to the dialyzer 39, the liquid supplementing efficiency of the dialyzer 39 can be improved, and the input end of the I pipeline 9 can be connected with a front dilution pipeline, so that the blood is pre-diluted, the I pipeline 9 is closer to the dialyzer 39, the pre-dilution of the blood is convenient, and the dilution efficiency is improved.
Optimizing: the dialysis circuit is also provided with a J circuit 10 and a sampling joint 35; the first end of the sampling connector 35 is connected to the output end of the J-line 10, the second end is connected to the input end of the F-line 6, and the third end is used for sampling. Through addding sampling joint 35 to can realize the quick collection of blood sample through the third end of sampling joint 35 at the treatment process, improve sampling efficiency.
Optimizing: the dialysis pipeline is also provided with a connector female plug 23, a connector female plug 24, an A connector 25, a B connector 26, a C connector 27, a multipurpose connector 28, an A protective cap 29, a B protective cap 30, a C protective cap 31, a D protective cap 32, a luer connector 33 and a circulating connector 34; the output end of the joint female head 23 is connected with the input end of the pipeline A1, and the input end is connected with the joint female head plug 24 in a matching way; the input end of the connector A25 is connected with the output end of the pipeline B2, and the output end is connected with the protective cap A29 in a matched manner; the output end of the joint B26 is connected with the input end of the J pipeline 10, and the input end is matched and connected with the protective cap B30; the input end of the C connector 27 is connected with the output end of the H pipeline 8, and the output end is connected with the C protective cap 31 in a matched manner; the output end of the multipurpose joint 28 is connected with the input end of the I pipeline 9, and the input end is connected with the D protective cap 32 in a matched manner; the luer fitting 33 has an input connected to the second end of the D-line 4 and an output connected to the input of the circulation fitting 34. The open port of the dialysis pipeline which is not put into use is plugged by the matched protective cap or plug, so that bacteria, dust and the like in the air are prevented from entering the pipe to pollute the dialysis pipeline. When in use, the open port is connected with the corresponding connection target immediately after the protective cap or the plug is detached.
Optimizing: the dialysis tubing is also provided with a waste liquid bag 37, the input of the waste liquid bag 37 being adapted to be connected to the output of the circulation connection 34. Before the perfusion device 38 is pre-flushed, the input end of the waste liquid bag 37 is connected with the second end of the D pipeline 4, so that the physiological saline flowing out of the perfusion device 38 flows into the waste liquid bag 37 after sequentially flowing through the J pipeline 10, the F pipeline 6, the E pipeline 5 and the D pipeline 4, the physiological saline is collected, and the waste liquid bag 37 can be detached after the pre-flushing is finished, so that the second end of the D pipeline 4 is used as a fluid supplementing port or a blood return port.
One preferred embodiment of the switch: the a switch 14, b switch 15, c switch 16, d switch 17, e switch 18, f switch 19, g switch 20, h switch 21 and i switch 22 are all pipe clamps. The pipe clamp is easy to control, and the on-off of the pipeline can be controlled rapidly.
Example two
Referring to fig. 1 and 2, a blood purification system according to an embodiment of the present utility model includes a perfusion unit 38, a dialyzer 39, and a dialysis line; the input end of the perfusion device 38 is connected with the output end of the pipeline B2, and the output end is connected with the input end of the pipeline F6; the input of the dialyzer 39 is connected to the output of the H line 8. The specific structure of the dialysis pipeline refers to the first embodiment, and the blood purification system adopts all the technical schemes in the first embodiment, so that the dialysis pipeline has at least the beneficial effects brought by the technical schemes in the first embodiment, and the details are not repeated here.
The use method of the blood purification system comprises the following steps:
when the perfusion unit 38 is pre-flushed, the input end of the waste liquid bag 37 is connected with the output end of the circulation joint 34, the a switch 14, the b switch 15, the f switch 19, the e switch 18 and the d switch 17 are opened, and the c switch 16, the g switch 20, the h switch 21 and the i switch 22 are closed. In this way, normal saline is introduced into the input end of the pipeline A1, and flows through the pipeline A1, the tee joint A11, the pipeline B2, the perfusion device 38, the pipeline J10, the sampling joint 35, the pipeline F6, the tee joint C13, the pipeline E5, the tee joint B12 and the pipeline D4 in sequence, and then reaches the waste liquid bag 37, so that the pre-flushing of the perfusion device 38 is realized.
When the dialyzer 39 is pre-flushed, the a, c, e, g, and h switches 14, 16, 18, 20, and 21 are turned on, and the b, f, 17, and i switches 22 are turned off. In this way, normal saline is introduced into the input end of the pipeline A1, and flows through the pipeline A1, the pipeline A tee joint 11, the pipeline C3, the tee joint B12, the pipeline E5, the tee joint C13, the pipeline G7, the liquid pot 36, the pipeline H8 and the dialyzer 39 in sequence, so that the pre-flushing of the dialyzer 39 is realized. In practice, the dialyzer 39 is pre-flushed and then the perfusion unit 38 is pre-flushed.
After the pre-flushing, the input end of the A pipeline 1 is connected with the hemodialysis normal arterial pipeline end and the output end of the dialyzer 39 is connected with the venous pipeline before treatment.
When combined perfusion and dialysis treatment is performed, the a switch 14, the b switch 15, the f switch 19, the g switch 20, and the h switch 21 are turned on, and the c switch 16, the d switch 17, the e switch 18, and the i switch 22 are turned off. Thus, blood flows in through the input of line A1, then flows through line A1, line A11, line B2, perfusion vessel 38, line J10, sampling junction 35, line F6, line C13, line G7, fluid pot 36, line H8, and dialyzer 39 in that order.
When the simple dialysis treatment is performed, the a switch 14, the c switch 16, the e switch 18, the g switch 20, and the h switch 21 are turned on, and the b switch 15, the f switch 19, the d switch 17, and the i switch 22 are turned off. Thus, blood flows through line A1, line A11, line C3, line B12, line E5, line C13, line G7, fluid pot 36, line H8 and dialyzer 39.
When the perfusion treatment is performed alone, the a switch 14, the b switch 15, the f switch 19, the e switch 18, and the d switch 17 are turned on, and the c switch 16, the g switch 20, the h switch 21, and the i switch 22 are turned off. Thus, blood flows in through the input of line A1 and then flows through line A1, line A11, line B2, perfusion apparatus 38, line J10, sampling connector 35, line F6, line C13, line E5, line B12 and line D4 in that order.
While the present utility model has been described in detail with respect to a dialysis circuit and a blood purification system, those skilled in the art will recognize that the present utility model is not limited to the embodiments and applications described above, based on the concepts of the embodiments of the present utility model.
Claims (10)
1. A dialysis circuit, comprising:
pipeline A, pipeline B, pipeline C, pipeline D, pipeline E, pipeline F, pipeline G, pipeline H, tee joint A, tee joint B, tee joint C and liquid pot;
the first end of the tee joint A is connected with the output end of the pipeline A, the second end of the tee joint A is connected with the input end of the pipeline B, and the third end of the tee joint A is connected with the input end of the pipeline C;
the first end of the tee joint B is connected with the output end of the pipeline C, the second end of the tee joint B is connected with the first end of the pipeline D, and the third end of the tee joint B is connected with one end of the pipeline E;
the first end of the C tee joint is connected with the other end of the E pipeline, the second end of the C tee joint is connected with the output end of the F pipeline, and the third end of the C tee joint is connected with the input end of the G pipeline;
the input end of the liquid kettle is connected with the output end of the G pipeline, the output end of the liquid kettle is connected with the input end of the H pipeline, and the liquid kettle is provided with a filter screen;
the pipeline A, the pipeline B, the pipeline C, the pipeline D, the pipeline E, the pipeline F, the pipeline G and the pipeline H are respectively provided with an a switch, a B switch, a C switch, a D switch, an E switch, an F switch, a G switch and an H switch for controlling the on-off of the pipeline.
2. The dialysis circuit of claim 1, further comprising:
the output end of the I pipeline is connected with the input end of the liquid kettle;
the I pipeline is provided with an I switch for controlling the on-off of the pipeline.
3. The dialysis circuit of claim 2, further comprising:
j pipeline and sampling joint;
the first end of the sampling joint is connected with the output end of the J pipeline, the second end of the sampling joint is connected with the input end of the F pipeline, and the third end of the sampling joint is used for sampling.
4. A dialysis circuit according to claim 3, further comprising:
the connector comprises a connector female head, a connector female head plug, an A connector, a B connector, a C connector, a multipurpose connector, an A protective cap, a B protective cap, a C protective cap, a D protective cap, a luer connector and a circulating connector;
the output end of the joint female connector is connected with the input end of the pipeline A, and the input end of the joint female connector is connected with the joint female connector plug in a matched manner;
the input end of the connector A is connected with the output end of the pipeline B, and the output end of the connector A is connected with the protective cap A in a matched manner;
the output end of the joint B is connected with the input end of the pipeline J, and the input end of the joint B is connected with the protective cap B in a matched manner;
the input end of the C connector is connected with the output end of the H pipeline, and the output end of the C connector is connected with the C protective cap in a matched manner;
the output end of the multipurpose connector is connected with the input end of the I pipeline, and the input end of the multipurpose connector is connected with the D protective cap in a matched manner;
the input end of the luer connector is connected with the second end of the D pipeline, and the output end of the luer connector is connected with the input end of the circulating connector.
5. The dialysis circuit of claim 4, further comprising:
and the input end of the waste liquid bag is connected with the output end of the circulating joint.
6. A dialysis circuit according to any one of claims 2 to 5, wherein:
the a switch, the b switch, the c switch, the d switch, the e switch, the f switch, the g switch, the h switch and the i switch are all pipe clamps.
7. A blood purification system, comprising:
perfusion, dialyzer and a dialysis line according to any one of claims 1 to 6;
the input end of the perfusion device is connected with the output end of the pipeline B, and the output end of the perfusion device is connected with the input end of the pipeline F;
the input end of the dialyzer is connected with the output end of the H pipeline.
8. A blood purification system according to claim 7, wherein:
when the perfusion device is pre-flushed, the input end of the waste liquid bag is connected with the output end of the circulating joint, the switch a, the switch b, the switch f, the switch e and the switch d are in an open state, and the switch c, the switch g, the switch h and the switch i are in a closed state;
when the dialyzer is pre-flushed, the a switch, the c switch, the e switch, the g switch and the h switch are in an open state, and the b switch, the f switch, the d switch and the i switch are in a closed state.
9. A blood purification system according to claim 7, wherein:
when perfusion and dialysis combined treatment is carried out, the a switch, the b switch, the f switch, the g switch and the h switch are in an open state, and the c switch, the d switch, the e switch and the i switch are in a closed state.
10. A blood purification system according to claim 7, wherein:
when the simple dialysis treatment is carried out, the a switch, the c switch, the e switch, the g switch and the h switch are in an open state, and the b switch, the f switch, the d switch and the i switch are in a closed state.
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