CN117695466A

CN117695466A - Improved hemodialysis machine

Info

Publication number: CN117695466A
Application number: CN202311788683.7A
Authority: CN
Inventors: 刘云; 孙科
Original assignee: Qilu Hospital of Shandong University Qingdao
Current assignee: Qilu Hospital of Shandong University Qingdao
Priority date: 2023-12-25
Filing date: 2023-12-25
Publication date: 2024-03-15

Abstract

The invention provides an improved hemodialysis machine, which comprises a blood pump and an air sensor; the plasma separator comprises a whole blood input port, a blood cell output port and a plasma output port; the hemodialysis line includes arterial and venous lines; one end of the arterial tube is connected with the human body after passing through the blood pump to draw out blood, and the other end is communicated with the whole blood input port; one end of the intravenous tube is communicated with the blood cell output port, and the other end is connected with a human body after passing through the air sensor so as to return blood; the bilirubin absorber is provided with an input port and an output port; one end of the first blood purifying connecting pipe is communicated with the plasma output port, and the other end of the first blood purifying connecting pipe is communicated with the input port of the bilirubin absorber; one end of the second blood purifying connecting pipe is communicated with the output port of the bilirubin absorber, and the other end is communicated with the venous tube; the invention improves the common dialysis machine without bilirubin adsorption function, and can lead the common dialysis machine to have bilirubin adsorption function by selecting and assembling specific consumables.

Description

Improved hemodialysis machine

Technical Field

The invention relates to the technical field of dialysis machines, in particular to an improved hemodialysis machine.

Background

Hemodialysis is a method of treating renal failure, and the main function of the kidney is to filter blood, remove metabolic waste and excessive water, and then drain the body in the form of urine. When kidney failure occurs, the kidney is completely or almost completely stopped, and external force is needed to help kidney work; hemodialysis is performed by using a machine instead of kidneys, and the general process is as follows: the blood is drawn out of the body, filtered through a dialysis machine, and then returned to the body, thus repeatedly circulating. However, if a patient has serious liver diseases, biliary tract diseases and the like, bilirubin can not be metabolized normally, so that jaundice occurs, at this time, a dialysis machine is needed to discharge bilirubin in the body in a bilirubin adsorption mode, and the effect of relieving the illness state is achieved. However, the conventional common dialysis machine generally has no bilirubin adsorption function, and generally only an imported Fei Senyou-Style bedside hemofilter is used for dialysis, so that the cost is high.

FIG. 1 is a schematic diagram of a conventional MultiFilter model Fei Senyou Style bedside hemofilter, in which when bilirubin is adsorbed on a patient using the hemofilter, blood is drawn from the body through an arterial line of a continuous blood purification line into a plasma separator, and blood cells separated by the plasma separator are introduced into a venous line of the continuous blood purification line; the blood plasma separated by the blood plasma separator enters the bilirubin absorber through the blood purifying connecting pipe, and the blood plasma absorbed by the bilirubin absorber is returned to the venous line of the continuous blood purifying pipeline through the blood purifying connecting pipe and is returned to the human body together after being combined with blood cells; wherein, the arterial line of the continuous blood purifying line is provided with a first infusion pump, and the blood purifying connecting pipe of the venous line connecting the bilirubin absorber and the continuous blood purifying line is provided with a second infusion pump; in addition, when using the hessian bedside hemofilter, it is necessary to provide a replacement liquid on the scales 01 and 02, the replacement liquid is circulated through the blood purification line, and then finally, the replacement liquid is delivered into the dialysis waste liquid bags hooked to the scales 03 and 04, and a third infusion pump is provided on the blood purification line; in bilirubin adsorption using a Fischer-Tropsch bedside hemofilter, it is necessary to use a displacement fluid and waste fluid bag, and to ensure that the displacement fluid decrease on balance 01 and balance 02 is consistent with the waste fluid increase on balance 03 and balance 04.

The Fei Senyou S-shaped bedside hemofilter is high in price, and consumable materials used for single dialysis comprise continuous blood purification pipelines (comprising arterial tubes and venous tubes), plasma separators, blood purification connecting tubes, bilirubin adsorbers, waste liquid bags for dialysis, blood purification pipelines, replacement liquid and the like, so that the conventional common dialysis machine without bilirubin adsorption function is improved, has bilirubin adsorption function, reduces the cost of consumable materials used for single dialysis, and is an unsolved technical problem in the prior art.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to overcome the technical defects that the Fei Senyou bedside hemofilter capable of bilirubin adsorption in the prior art is high in price and the consumable price used in single dialysis is high, so that the invention provides an improved hemodialysis machine which is improved on the prior common dialysis machine without bilirubin adsorption function, has bilirubin adsorption function and is low in consumable price used in single dialysis.

To this end, the present invention provides an improved hemodialysis machine comprising:

a dialysis machine comprising a blood pump and an air sensor;

a plasma separator comprising a whole blood input, a blood cell output, and a plasma output;

hemodialysis tubing, including arterial and venous tubing; one end of the arterial tube is connected with a human body to draw blood after passing through the blood pump, and the other end of the arterial tube is communicated with the whole blood input port; one end of the intravenous tube is communicated with the blood cell output port, and the other end of the intravenous tube is connected with a human body after passing through the air sensor so as to return blood;

a bilirubin absorber having an input and an output;

a first blood purification connecting tube, one end of which is communicated with the plasma outlet and the other end of which is communicated with the inlet of the bilirubin absorber;

a second blood purification connecting tube, one end of which is communicated with the output port of the bilirubin absorber, and the other end of which is communicated with the venous tube;

and the first infusion pump is arranged on the second blood purification connecting pipe.

As a preferred embodiment, the venous tube has a venous pot upstream of the air sensor, the other end of the second blood purification connection tube being connected to the venous pot of the venous tube, the purified plasma being mixed with blood cells in the venous pot.

As a preferable mode, the first infusion pump is a same infusion pump of a Fei Senyou-step bedside blood filter with a model of multi-filter matched with the second blood purifying connecting pipe.

As a preferred embodiment, the arterial line has an arterial kettle which communicates with an anticoagulant outlet of the dialysis machine.

The present invention provides an improved hemodialysis machine, comprising:

a dialysis machine comprising a blood pump and an air sensor;

a bilirubin absorber having an input and an output;

a second blood purification connection tube, one end of which is communicated with the output port of the bilirubin absorber;

a connecting tube, the outer diameter of which is smaller than that of the second blood purifying connecting tube, one end of which is communicated with the other end of the second blood purifying connecting tube, and the other end of which is communicated with the vein tube;

and the second infusion pump is arranged on the pipeline of the connecting pipe.

Preferably, the connecting tube is cut by the infusion tube, a threaded connecting port is reserved after cutting, one end of the cut connecting tube is communicated with the other end of the second blood purifying connecting tube, and the threaded connecting port is communicated with the intravenous tube.

As a preferable scheme, the second infusion pump is an infusion pump matched with the connecting pipe.

As a preferred aspect, the venous tube has a venous pot located upstream of the air sensor, a threaded connection port of the connection tube is connected to the venous pot of the venous tube, and purified plasma and blood cells are mixed in the venous pot.

The technical scheme provided by the invention has the following advantages:

1. the invention relates to an improved hemodialysis machine, which comprises a dialysis machine, a plasma separator, a hemodialysis pipeline, a bilirubin absorber, a first blood purification connecting pipe, a second blood purification connecting pipe and a first infusion pump; the dialysis machine is provided with a blood pump and an air sensor, the plasma separator comprises a whole blood input port, a blood cell output port and a plasma output port, the hemodialysis pipeline comprises an arterial tube and a venous tube, and the bilirubin absorber is provided with an input port and an output port; one end of the arterial tube is connected with a human body after passing through the blood pump to draw out blood, the other end of the arterial tube is communicated with the whole blood input port, one end of the venous tube is communicated with the blood cell output port, the other end of the arterial tube is connected with the human body after passing through the air sensor to return blood, one end of the first blood purifying connecting tube is communicated with the blood plasma output port, the other end of the first blood purifying connecting tube is communicated with the input port of the bilirubin absorber, one end of the second blood purifying connecting tube is communicated with the output port of the bilirubin absorber, the other end of the second blood purifying connecting tube is communicated with the venous tube, and the first infusion pump is arranged on the second blood purifying connecting tube.

When the improved hemodialysis machine is used for dialysis, the consumable materials (the plasma separator, the hemodialysis pipeline, the bilirubin absorber, the first blood purification connecting pipe and the second blood purification connecting pipe) are selected and arranged on a conventional dialysis machine, blood in a human body is led out by an arterial tube under the action of a blood pump, is input into the plasma separator from a whole blood input port, is separated by the plasma separator, and is output from a blood cell output port and is input back to the human body through a venous tube; the blood plasma is output from the blood plasma output port and is input to the bilirubin absorber through the first blood purifying connecting pipe, the bilirubin in the blood plasma is absorbed by the bilirubin absorber, and then is input back to the venous tube through the second blood purifying connecting pipe under the action of the first infusion pump, and is mixed with blood cells input back to the venous tube and then is input back to the human body.

That is, the technical proposal of the application improves the common dialysis machine without bilirubin adsorption function, and can lead the common dialysis machine to have bilirubin adsorption function by selecting and assembling specific consumables; therefore, for some hospitals which do not have enough expense to purchase Fei Senyou bedside hemofilter or hospitals which are not enough in number and can not meet the use needs of patients although Fei Senyou bedside hemofilter are purchased, the prior common dialyser can have bilirubin adsorption function as long as consumables are purchased and assembled according to the scheme of the application, so that bilirubin adsorption treatment can be carried out on the patients, the treatment range is enlarged, the cost is increased limitedly, and the treatment cost of the patients can be reduced.

2. The improved hemodialysis machine of the invention has a venous tube with a venous pot positioned at the upstream of the air sensor, the other end of the second blood purifying connecting tube is connected with the venous pot of the venous tube, and purified blood plasma and blood cells are mixed in the venous pot; the venous kettle can discharge air accumulated in the kettle, regulate the liquid level and can also be used as an air detection part.

3. According to the improved hemodialysis machine disclosed by the invention, the arterial tube is provided with the arterial kettle, the arterial kettle is communicated with the anticoagulant output port of the dialysis machine, and the anticoagulant is added at the position of the arterial kettle to be uniformly mixed with blood, so that the blood is prevented from being coagulated in the subsequent dialysis process; the arterial kettle can also discharge air collected in the kettle, regulate the liquid level and can be used as an interface for various transfusion.

4. The invention relates to an improved hemodialysis machine, which comprises a dialysis machine, a plasma separator, a hemodialysis pipeline, a bilirubin absorber, a first blood purification connecting pipe, a second blood purification connecting pipe, a connecting pipe and a second infusion pump; the dialysis machine is provided with a blood pump and an air sensor, the plasma separator comprises a whole blood input port, a blood cell output port and a plasma output port, the hemodialysis pipeline comprises an arterial tube and a venous tube, the bilirubin absorber is provided with an input port and an output port, and the outer diameter of the tube of the connecting tube is smaller than that of the second blood purification connecting tube; one end of the arterial tube is connected with a human body after passing through the blood pump to draw out blood, the other end of the arterial tube is communicated with the whole blood input port, one end of the arterial tube is communicated with the blood cell output port, the other end of the arterial tube is connected with the human body after passing through the air sensor to return blood, one end of the first blood purifying connecting tube is communicated with the blood plasma output port, the other end of the first blood purifying connecting tube is communicated with the input port of the bilirubin absorber, one end of the second blood purifying connecting tube is communicated with the output port of the bilirubin absorber, the other end of the second blood purifying connecting tube is communicated with the other end of the second blood purifying connecting tube, the other end of the connecting tube is communicated with the venous tube, and the second infusion pump is arranged on a pipeline of the connecting tube.

When the improved hemodialysis machine is used for dialysis, the consumable materials (the plasma separator, the hemodialysis pipeline, the bilirubin absorber, the first blood purification connecting pipe, the second blood purification connecting pipe and the connecting pipe) are selected and arranged on a conventional dialysis machine, blood in a human body is led out by an arterial tube under the action of a blood pump, is input into the plasma separator from a whole blood input port, is separated by the plasma separator, and blood cells are output from a blood cell output port and are input back to the human body through a venous tube; the blood plasma is output from the blood plasma output port and is input to the bilirubin absorber through the first blood purifying connecting pipe, the bilirubin absorber adsorbs the bilirubin in the blood plasma, and then the bilirubin is input back to the venous line through the second blood purifying connecting pipe and is connected with the upper connecting pipe under the action of the second infusion pump, and is mixed with blood cells input back to the venous line and then is input back to the human body.

5. According to the improved hemodialysis machine, the connecting pipe is cut off by the infusion pipe, a threaded connecting port is reserved after cutting off, one end of the cut-off is communicated with the other end of the second blood purification connecting pipe, and the threaded connecting port is communicated with the vein pipe; the connecting pipe is cut off by a common infusion tube, and the cost can be further reduced by adopting the infusion tube to self-control the connecting pipe due to lower price of the infusion tube; in addition, the first infusion pump is the same infusion pump of the Fei Senyou bedside hemofilter, the price is higher, the second infusion pump is the same infusion pump of the conventional dialysis machine, the price is lower, and the position of the second infusion pump for installing the connecting pipe is exactly matched with the pipe diameter of the infusion pipe, so that the infusion pipe is adopted to self-control the connecting pipe, the cost of consumable materials is reduced, and the second infusion pump can be used for replacing the first infusion pump, so that the equipment cost is further reduced.

Drawings

In order to more clearly illustrate the technical solutions in the prior art or in the embodiments of the present invention, the following brief description is given of the drawings used in the description of the prior art or the embodiments.

FIG. 1 is a practical view of a conventional Fei Senyou-step hemofilter.

Fig. 2 is a practical view of a conventional general dialysis machine.

FIG. 3 is a schematic view of the blood purifying connecting tube and the transfusion tube.

Fig. 4 is a schematic view of the structure of the improved blood purifying device of the present application.

Fig. 5 is a schematic diagram of the structure principle of fig. 4 after the self-made connecting pipe is applied.

Reference numerals: 1. a dialysis machine; 11. a blood pump; 12. an air sensor; 2. a plasma separator; 21. a whole blood input port; 22. a blood cell outlet; 23. a plasma outlet; 3. a hemodialysis line; 31. arterial tube; 310. an arterial kettle; 32. venous vessel; 320. a venous kettle; 4. a bilirubin absorber; 41. an input port; 42. an output port; 5. a first blood purifying connection tube; 6. a second blood purifying connecting tube; 7. a first infusion pump; 8. a connecting pipe; 82. a threaded connection port; 9. a second infusion pump.

Detailed Description

In order for those skilled in the art to better understand the present solution, the following description will clearly and fully describe the technical solution in the embodiments of the present application with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.

It should be noted that the terms "first," "second," and the like in the claims and description herein are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those skilled in the art as the case may be. In addition, the term "plurality" shall mean two as well as more than two. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.

The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

This embodiment provides an improved hemodialysis machine, as shown in fig. 2 and 4, comprising: a dialysis machine 1, a plasma separator 2, a hemodialysis line 3, a bilirubin absorber 4, a first blood purification connection tube 5, a second blood purification connection tube 6, and a first infusion pump 7; wherein the dialysis machine 1 comprises a blood pump 11 and an air sensor 12; the plasma separator 2 comprises a whole blood input 21, a blood cell output 22 and a plasma output 23; the hemodialysis line 3 includes an arterial tube 31 and a venous tube 32; one end of the arterial tube 31 is connected with a human body to draw blood after passing through the blood pump 11, and the other end is communicated with the whole blood input port 21; one end of the venous tube 32 is communicated with the blood cell output port 22, and the other end of the venous tube is connected with a human body after passing through the air sensor 12 so as to return blood; the bilirubin absorber 4 has an inlet 41 and an outlet 42; one end of the first blood purifying connecting tube 5 is connected to the plasma outlet 23, and the other end is connected to the inlet 41 of the bilirubin absorber 4; one end of the second blood purification connection tube 6 communicates with the output port 42 of the bilirubin absorber 4, and the other end communicates with the venous tube 32; a first infusion pump 7 is arranged on said second blood purifying connection tube 6.

When the improved hemodialysis machine of the present embodiment is used for dialysis, the above-mentioned consumables (plasma separator 2, hemodialysis tube 3, bilirubin absorber 4, first blood purification connection tube 5 and second blood purification connection tube 6) are selected and mounted on a conventional dialysis machine 1, blood in a human body is led out by arterial tube 31 under the action of blood pump 11, is input to plasma separator 2 from whole blood input port 21, is separated by plasma separator 2, and then, blood cells are output from blood cell output port 22 and are input back to the human body through venous tube 32; the plasma is output from the plasma output port 23, is input to the bilirubin absorber 4 through the first blood purification connecting pipe 5, absorbs bilirubin in the plasma by the bilirubin absorber 4, is then returned to the venous line 32 through the second blood purification connecting pipe 6 under the action of the first infusion pump 7, is mixed with blood cells returned to the venous line 32, and is then returned to the human body.

That is, in the technical scheme of the present embodiment, the general dialysis machine 1 without bilirubin adsorption function is improved, and the general dialysis machine 1 can be provided with bilirubin adsorption function by selecting and assembling specific consumables; therefore, for some hospitals which do not have enough expense to purchase Fei Senyou bedside hemofilters or hospitals which have Fei Senyou bedside hemofilters but have insufficient numbers and cannot meet the use needs of patients, the conventional common dialysis machine can have bilirubin adsorption function only by purchasing and assembling consumable materials according to the scheme of the embodiment, so that bilirubin adsorption treatment can be carried out on the patients, the treatment range is enlarged, the cost is increased limitedly, and the treatment cost of the patients can be reduced.

In this embodiment, the venous tube 32 has a venous pot 320, the venous pot 320 is located upstream of the air sensor 12, the other end of the second blood purifying connecting tube 6 is connected to the venous pot 320 of the venous tube 32, and purified blood plasma and blood cells are mixed in the venous pot 320; the venous pot 320 can exhaust air accumulated in the pot, regulate the liquid level, and also can be used as an air detection part.

In this embodiment, the model number of the dialysis machine 1 is NCU-18, the Plasma separator 2 is a Fei Senyou S medical product and a Plasma separator of model number Plasma Flux P2 dry manufactured by Santa Classification, the hemodialysis line 3 is a hemodialysis line of registration number national injection 20183100287 manufactured by Weitai medical product, inc., the bilirubin absorber 4 is a bilirubin absorber of model number Bs330 manufactured by Jian Sail Biotechnology group, inc., the first and second blood purification connection pipes 5 and 6 are hemodialysis lines of model number BLS-001-542 manufactured by Tianjin Ha Na good medical product, and the first infusion pump 7 is a same infusion pump of model number Fei Senyou Sibedside hemofilter of MultiFilter.

In this embodiment, the arterial tube 31 has an arterial kettle 310, the arterial kettle 310 is communicated with an anticoagulant output port of the dialysis machine 1, and an anticoagulant is added at the position of the arterial kettle 310 to be uniformly mixed with blood, so that the blood is prevented from being coagulated in the subsequent dialysis process; the arterial kettle 310 can also exhaust air accumulated in the kettle, regulate the liquid level and can be used as an interface for various transfusion.

Example 2

The present embodiment provides an improved hemodialysis machine, as shown in fig. 2, 3 and 5, comprising a dialysis machine 1, a plasma separator 2, a hemodialysis line 3, a bilirubin absorber 4, a first blood purification connection tube 5, a second blood purification connection tube 6, a connection tube 8 and a second infusion pump 9; wherein the dialysis machine 1 comprises a blood pump 11 and an air sensor 12; the plasma separator 2 comprises a whole blood input 21, a blood cell output 22 and a plasma output 23; the hemodialysis line 3 includes an arterial tube 31 and a venous tube 32; one end of the arterial tube 31 is connected with a human body to draw blood after passing through the blood pump 11, and the other end is communicated with the whole blood input port 21; one end of the venous tube 32 is communicated with the blood cell output port 22, and the other end of the venous tube is connected with a human body after passing through the air sensor 12 so as to return blood; the bilirubin absorber 4 has an inlet 41 and an outlet 42; one end of the first blood purifying connecting tube 5 is connected to the plasma outlet 23, and the other end is connected to the inlet 41 of the bilirubin absorber 4; one end of the second blood purification connection tube 6 communicates with the output port 42 of the bilirubin absorber 4; the outer diameter of the connecting tube 8 is smaller than that of the second blood purifying connecting tube 6, one end of the connecting tube is communicated with the other end of the second blood purifying connecting tube 6, and the other end of the connecting tube is communicated with the vein tube 32; a second infusion pump 9 is arranged on the line of said connection tube 8.

When the improved hemodialysis machine of the present application is used for dialysis, the above-mentioned consumables (plasma separator 2, hemodialysis line 3, bilirubin absorber 4, first blood purification connecting tube 5, second blood purification connecting tube 6 and connecting tube 8) are selected and installed on the conventional dialysis machine 1, blood in a human body is led out by arterial tube 31 under the action of blood pump 11, is input into plasma separator 2 from whole blood input port 21, is separated by plasma separator 2, and blood cells are output from blood cell output port 22 and are input back to the human body through venous tube 32; the plasma is output from the plasma output port 23, is input to the bilirubin absorber 4 through the first blood purification connecting pipe 5, the bilirubin absorber 4 adsorbs the bilirubin in the plasma, and then is connected with the upper connecting pipe 8 through the second blood purification connecting pipe 6 to be returned to the venous tube 32 under the action of the second infusion pump 9, and is mixed with blood cells returned to the venous tube 32 and then returned to the human body.

According to the technical scheme of the embodiment, the common dialysis machine 1 without the bilirubin adsorption function is improved, and the bilirubin adsorption function of the common dialysis machine 1 can be realized by selecting and assembling specific consumables; therefore, for some hospitals which do not have enough expense to purchase Fei Senyou bedside hemofilters or hospitals which have Fei Senyou bedside hemofilters but have insufficient numbers and cannot meet the use needs of patients, the conventional common dialysis machine can have bilirubin adsorption function only by purchasing and assembling consumable materials according to the scheme of the embodiment, so that bilirubin adsorption treatment can be carried out on the patients, the treatment range is enlarged, the cost is increased limitedly, and the treatment cost of the patients can be reduced.

Clinically, when bilirubin adsorption is performed using a Fisher-Unshi bedside hemofilter, the cost and service charge of the consumables used are as follows: the treatment cost of continuous plasma filtration and adsorption is 2200 yuan, the blood purification connecting pipe 80, the bilirubin absorber 3705 yuan, and the total cost 8721 yuan, and the treatment cost of the waste liquid bag for dialysis is 125 yuan, the blood purification pipeline is 254 yuan, the plasma separator is 1780 yuan, the continuous blood purification pipeline is 557 yuan; when bilirubin is adsorbed by using the improved blood purification apparatus of this embodiment, the cost and service charge of the consumable used are as follows: 25 yuan for hemodialysis pipeline, 1780 yuan for plasma separator, 10 yuan for infusion tube, 6-8 yuan for infusion pump treatment, 2200 yuan for continuous plasma filtration and adsorption treatment, 80 yuan for blood purification connecting tube, 3705 yuan for bilirubin absorber and 7808 yuan for total cost. As can be seen from the above cost details, the improved bedside hemofilter can be used with 913 yuan less cost than the use of the Fischer-Tropsch bedside hemofilter, so that the patient can spend 913 yuan less per dialysis, thereby reducing the treatment cost of the patient.

In this embodiment, the connection tube 8 is cut by an infusion tube, the infusion tube is an infusion tube with a registration certificate number of medical apparatuses and instruments of national standard 20173144107, which is produced by Shandong Wei high-group medical polymer products, inc., after cutting, a threaded connection port 82 is reserved, one end of the cut is communicated with the other end of the second blood purification connection tube 6, and the threaded connection port 82 is communicated with the intravenous tube 32; the connecting pipe is cut off by a common infusion tube for self-control, and the cost can be further reduced by adopting the infusion tube for self-control of the connecting pipe 8 due to lower price of the infusion tube; in addition, the first infusion pump 7 is the same infusion pump of the Fei Senyou bedside hemofilter, the price is higher, the second infusion pump 9 is the same infusion pump of the conventional dialysis machine 1 (the Miruisk-901 EX infusion pump manufactured by Shenzhen Mirui biomedical electronics Co., ltd.) is adopted in the embodiment, the price is lower, and the position of the second infusion pump 9 for installing the connecting pipe 8 is exactly matched with the pipe diameter of the infusion pipe, so that the infusion pipe is adopted to self-control the connecting pipe 8, the cost of consumable materials is reduced, and the second infusion pump 9 can be used for replacing the first infusion pump 7, so that the equipment cost is further reduced.

The improved hemodialysis machine of the present application, based on the improved hemodialysis machine in embodiment 1, changes the blood purifying connecting tube into a connecting tube which is cut off by a common infusion tube and is self-made, and further changes the same infusion pump (first infusion pump 7) of the Fei Senyou bedside blood filter into the same infusion pump (second infusion pump 9) of the conventional hemodialysis machine, thereby reducing the equipment cost.

In this embodiment, the venous tube 32 has a venous pot 320, the venous pot 320 is located upstream of the air sensor 12, the threaded connection port 82 of the connection tube 8 is connected to the venous pot 320 of the venous tube 32, and purified plasma and blood cells are mixed in the venous pot 320; the venous kettle can discharge air accumulated in the kettle, regulate the liquid level and can also be used as an air detection part.

The use method of the improved hemodialysis machine in this embodiment is as follows: the plasma separator 2, the hemodialysis pipe 3, the bilirubin absorber 4, the first blood purifying connecting pipe 5 and the second blood purifying connecting pipe 6 are arranged on a conventional dialysis machine, blood in a human body is led out by an arterial tube 31 under the action of a blood pump 11, is input into the plasma separator 2 from a whole blood input port 21, is separated by the plasma separator 2, and blood cells are output from a blood cell output port 22 and are input back to the human body through a venous tube 32; the plasma is output from the plasma output port 23, is input to the bilirubin absorber 4 through the first blood purification connecting pipe 5, absorbs bilirubin in the plasma by the bilirubin absorber 4, is then returned to the venous line 32 through the second blood purification connecting pipe 6 under the action of the first infusion pump 7, is mixed with blood cells returned to the venous line 32, and is then returned to the human body.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious changes and modifications which are extended therefrom are still within the scope of the present innovative teachings.

Claims

1. An improved hemodialysis machine, comprising:

a dialysis machine (1) comprising a blood pump (11) and an air sensor (12);

a plasma separator (2) comprising a whole blood input (21), a blood cell output (22) and a plasma output (23);

a hemodialysis line (3) comprising an arterial tube (31) and a venous tube (32); one end of the arterial tube (31) is connected with a human body to draw blood after passing through the blood pump (11), and the other end of the arterial tube is communicated with the whole blood input port (21); one end of the venous tube (32) is communicated with the blood cell output port (22), and the other end of the venous tube is connected with a human body after passing through the air sensor (12) so as to return blood;

a bilirubin absorber (4) having an input port (41) and an output port (42);

a first blood purification connection tube (5) having one end connected to the plasma outlet port (42) and the other end connected to the inlet port (41) of the bilirubin absorber (4);

a second blood purification connection tube (6) having one end connected to the output port (42) of the bilirubin absorber (4) and the other end connected to the venous tube (32);

a first infusion pump (7) arranged on the second blood purifying connecting pipe (6).

2. The improved hemodialysis machine of claim 1, wherein: the venous tube (32) has a venous pot (320), the venous pot (320) being located upstream of the air sensor (12), the other end of the second blood purification connection tube (6) being connected to the venous pot (320) of the venous tube (32), purified plasma being mixed with blood cells within the venous pot (320).

3. The improved hemodialysis machine of claim 2, wherein: the first infusion pump (7) is a same infusion pump which is matched with the second blood purification connecting pipe (6) and is a Fei Senyou-step bedside blood filter with a model of multi-filter.

4. The improved hemodialysis machine of claim 1, wherein: the arterial tube (31) has an arterial kettle (310), the arterial kettle (310) being in communication with an anticoagulant outlet of the dialysis machine (1).

5. An improved hemodialysis machine, comprising:

a dialysis machine (1) comprising a blood pump (11) and an air sensor (12);

a bilirubin absorber (4) having an input port (41) and an output port (42);

a second blood purification connection tube (6) having one end connected to the output port (42) of the bilirubin absorber (4);

a connecting tube (8) having a tube outer diameter smaller than the tube outer diameter of the second blood purifying connecting tube (6), one end of which is communicated with the other end of the second blood purifying connecting tube (6), and the other end of which is communicated with the venous tube (32);

and the second infusion pump (9) is arranged on the pipeline of the connecting pipe (8).

6. The improved hemodialysis machine of claim 5, wherein: the connecting tube (8) is sheared by the infusion tube, a threaded connecting port (82) is reserved after shearing, one sheared end is communicated with the other end of the second blood purifying connecting tube (6), and the threaded connecting port (82) is communicated with the vein tube (32).

7. The improved hemodialysis machine of claim 6, wherein: the second infusion pump (9) is an infusion pump matched with the connecting pipe (8).

8. The improved hemodialysis machine of claim 5, wherein: the venous tube (32) is provided with a venous pot (320), the venous pot (320) is positioned upstream of the air sensor (12), a threaded connection port (82) of the connecting tube (8) is connected with the venous pot (320) of the venous tube (32), and purified blood plasma and blood cells are mixed in the venous pot (320).

9. The improved hemodialysis machine of claim 5, wherein: the arterial tube (31) has an arterial kettle (310), the arterial kettle (310) being in communication with an anticoagulant outlet of the dialysis machine (1).