CN215780394U - Efficient and safe hemofiltration dialyzer and dialysis device - Google Patents
Efficient and safe hemofiltration dialyzer and dialysis device Download PDFInfo
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- CN215780394U CN215780394U CN202121930296.9U CN202121930296U CN215780394U CN 215780394 U CN215780394 U CN 215780394U CN 202121930296 U CN202121930296 U CN 202121930296U CN 215780394 U CN215780394 U CN 215780394U
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Abstract
The utility model discloses a high-efficiency safe hemofiltration dialyzer and a dialysis device, which belong to the technical field of hemodialysis, and comprise a blood inlet, a blood outlet, a dialysate inlet and a dialysate outlet, and are characterized by also comprising a negative pressure suction port, wherein low-flux dialysis wires are arranged in the dialyzer, high-flux dialysis wires are arranged between the low-flux dialysis wires, and a dialysis area is divided into a low-flux dialysis area and a high-flux dialysis area according to the arrangement of the low-flux dialysis wires and the high-flux dialysis wires; the dialysate inlet and the dialysate outlet are communicated with the low-flux dialysis wire and are blocked from the high-flux dialysis wire; the blood inlet and the blood outlet are communicated with the low-flux dialysis area; the negative pressure suction port is communicated with the high-flux dialysis area. The utility model can realize the discharge of macromolecular toxin in blood on the premise of ensuring safety, and has simple structure, safety and high efficiency.
Description
Technical Field
The utility model relates to the technical field of hemodialysis, in particular to a high-efficiency and safe hemofiltration dialyzer and a dialysis device.
Background
The dialyzer used in the market at present is mainly a container which is composed of dialysis filaments and is provided with a blood inlet and a dialysate outlet, the container is filled with the dialysis filaments, the two ends of the container are respectively provided with a blood inlet, a dialysate inlet, a blood outlet and a dialysate outlet, and blood directly enters the container to exchange with dialysate entering the dialysis filaments, so that the purpose of blood purification is achieved. The common dialyzer has low blood purification efficiency, and some macromolecular toxins in the blood cannot pass through the common dialysis filaments, so that the macromolecular toxins in the blood cannot be removed; some dialyzer products improve the permeation amount of dialysis filaments in order to discharge macromolecular toxins in blood, but microorganisms possibly existing in dialysate can enter the blood to cause inflammation while the macromolecular toxins in the blood are discharged, so that certain risks exist.
Disclosure of Invention
The technical task of the utility model is to provide a high-efficiency and safe hemofiltration dialyzer and dialysis device aiming at the defects, which can realize the discharge of macromolecular toxins in blood on the premise of ensuring safety, and have simple structure, safety and high efficiency.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
a high-efficiency and safe hemofiltration dialyzer comprises a blood inlet, a blood outlet, a dialysate inlet, a dialysate outlet and a negative pressure suction port, wherein low-flux dialyzing wires are arranged in the dialyzer, high-flux dialyzing wires are arranged among the low-flux dialyzing wires, and a dialysis area is divided into a low-flux dialysis area and a high-flux dialysis area according to the arrangement of the low-flux dialyzing wires and the high-flux dialyzing wires;
the dialysate inlet and the dialysate outlet are communicated with the low-flux dialysis wire and are blocked from the high-flux dialysis wire; the blood inlet and the blood outlet are communicated with the low-flux dialysis area; the negative pressure suction port is communicated with the high-flux dialysis area.
In use, dialysate enters the low flux dialysis wire from the dialysate inlet and then exits the dialysate outlet; blood enters the low-flux dialysis area from the blood inlet, is in fluid exchange with the low-flux dialysis wire and then flows out from the blood outlet; the negative pressure suction port is connected with a negative pressure device, so that a negative pressure area is formed in the high-flux dialysis area, blood in the low-flux dialysis area flows to the high-flux dialysis wire under the action of negative pressure while performing liquid exchange with the low-flux dialysis wire, and macromolecular toxins in the blood can pass through the side wall of the high-flux dialysis wire, so that the macromolecular toxins in the blood can be removed; and the dialysate inlet and the dialysate outlet are separated from the high-flux dialysis wire, so that the dialysate is prevented from entering the high-flux dialysis wire, and the liquid lost in the blood is supplemented by the dialysate in the low-flux dialysis wire, thereby ensuring the safety of dialysis.
Preferably, the high-flux dialysis area is arranged in the axis region of the dialyzer, and two ends of the high-flux dialysis area are respectively communicated with the negative pressure suction ports at two ends of the dialyzer; and a low-flux dialysis area is arranged between the high-flux dialysis area and the pipe wall of the dialyzer, and the low-flux dialysis area is communicated with a blood inlet and a blood outlet which are formed in the pipe wall of the dialyzer.
Namely, the center in the dialyzer is a high-flux dialysis area, the outer side is a low-flux dialysis area, and blood enters the low-flux dialysis area from a blood inlet on the wall of the dialyzer; the high-flux dialysis area forms a negative pressure area through the negative pressure suction at the two ends of the high-flux dialysis area, blood flows from the outer low-flux dialysis area to the central high-flux dialysis area under the action of negative pressure, and flows out from a blood outlet on the pipe wall of the dialyzer through the outer low-flux dialysis area. The structure has the advantages of high use efficiency, simple manufacture, low cost and easy popularization and application.
Preferably, the low-flux dialysis wire and the high-flux dialysis wire are horizontally arranged in a layered mode, and the low-flux dialysis area and the high-flux dialysis area are arranged in a layered mode.
The blood enters the upper low-flux dialysis area from a blood inlet on the tube wall of the dialyzer, the high-flux dialysis area forms a negative pressure area under the action of negative pressure suction, the blood in the upper low-flux dialysis area reaches the lower high-flux dialysis area, and part of macromolecular substances are left in the high-flux dialysis wire; the blood continues to flow downwards to the next low-flux dialysis area and the next high-flux dialysis area under the pressure of the blood pump, and the process is repeated until the blood reaches the lowest low-flux dialysis area and flows out from a blood outlet on the tube wall of the dialyzer.
Preferably, the low-flux dialysis wire and the high-flux dialysis wire are annularly layered, and the low-flux dialysis area and the high-flux dialysis area are layered.
The blood enters the outer low-flux dialysis area from a blood inlet on the tube wall of the dialyzer, the high-flux dialysis area forms a negative pressure area under the action of negative pressure suction, the blood in the outer low-flux dialysis area reaches the inner high-flux dialysis area downwards, and part of macromolecular substances are left in the high-flux dialysis wire; the blood continues to flow inwards to the inner low-flux dialysis area and the inner high-flux dialysis area under the pressure of the blood pump, and finally the blood flows out from the outermost low-flux dialysis area to the blood outlet on the pipe wall of the dialyzer.
Preferably, the low-flux dialysis wires and the high-flux dialysis wires are respectively arranged in a sector shape with the axis of the dialyzer as the center, and the low-flux dialysis area and the high-flux dialysis area are arranged at intervals to form a cylindrical dialysis area. Because the blood inlet and the blood outlet are communicated with the low-flux dialysis area, the blood inlet and the blood outlet are both arranged on the outer side tube wall of the sector formed by the low-flux dialysis wires and are distributed diagonally for improving the blood exchange efficiency, blood enters the low-flux dialysis area of the sector, the high-flux dialysis area forms a negative pressure area under the action of negative pressure suction, the blood in the low-flux dialysis area reaches the adjacent high-flux dialysis area towards two sides, and part of macromolecular substances are left in the high-flux dialysis wires; the blood continues to reach the next low-flux dialysis area and the high-flux dialysis area under the pressure of the blood pump, and finally the blood flows out from the low-flux dialysis area on the opposite side to a blood outlet on the pipe wall of the dialyzer.
Preferably, the high-flux dialysis zone is arranged uniformly within the low-flux dialysis zone.
Blood enters the low-flux dialysis area from a blood inlet on the pipe wall of the dialyzer, the high-flux dialysis area forms a negative pressure area under the action of negative pressure suction, the blood in the low-flux dialysis area flows to the high-flux dialysis area, and part of macromolecular substances are left in the high-flux dialysis filaments. The blood eventually flows out from the low-flux dialysis zone to the blood outlet on the dialyzer tube wall.
Further, the blood inlet and the blood outlet are respectively arranged at the front end part and the rear end part of the dialyzer tube wall and are arranged in a diagonal manner; the dialysate inlet and the dialysate outlet are arranged at the rear end and the front end, respectively, on the dialyzer tube wall. The blood enters from the front end of the dialyzer and flows out from the other side of the rear end, so that the liquid exchange of the blood in the dialyzer is fully realized; the dialysate flows in the opposite direction to the blood flow, facilitating fluid exchange.
Preferably, two end parts of the dialyzer are provided with dialysate containing cavities, and the dialysate containing cavities are communicated with the low-flux dialysis area and blocked from the high-flux dialysis area; the dialysate cavity is communicated with the dialysate inlet and the dialysate outlet.
Preferably, the negative pressure suction cavity is further arranged, the negative pressure suction cavity is located at two ends of the dialyzer and outside the dialysate containing cavity and is separated from the dialysate containing cavity, and negative pressure suction ports are formed in two outer side ends of the negative pressure suction cavities at two sides.
The utility model also claims a high-efficiency safe dialysis device, which comprises a dialyzer, a blood pump, a dialysate pump and a negative pressure device, wherein the dialyzer is the blood filtration dialyzer, two ends of the blood filtration dialyzer are connected with the negative pressure device, a blood inlet and a blood outlet of the dialyzer are respectively connected with the blood pump, and a dialysate inlet and a dialysate outlet of the dialyzer are respectively connected with the dialysate pump.
Compared with the prior art, the efficient and safe hemofiltration dialyzer and dialysis device provided by the utility model have the following beneficial effects:
this hemofiltration cerini dialyser cerini and dialysis device can realize the discharge of macromolecular toxin in the blood through setting up high flux dialysis district, can guarantee hemodialysis's security again simultaneously, effectively avoids the macromolecular substance in the dialysate to get into blood and arouses the inflammation. The dialyzer has the advantages of simple structure, convenient use and operation, good hemofiltration and dialysis effects, high safety and easy popularization and use.
Drawings
Fig. 1 is a schematic structural diagram of a high-efficiency and safe hemofiltration dialyzer according to an embodiment of the present invention;
figure 2 is a schematic cross-sectional view of a high-efficiency and safe hemofiltration dialyzer according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a dialysis wire provided in an embodiment of the present invention;
figure 4 is a schematic cross-sectional view of a high-efficiency and safe hemofiltration dialyzer according to a second embodiment of the present invention;
figure 5 is a schematic cross-sectional view of a high-efficiency and safe hemofiltration dialyzer according to a third embodiment of the present invention;
figure 6 is a schematic cross-sectional view of a high-efficiency and safe hemofiltration dialyzer according to a fourth embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a high-efficiency and safe hemofiltration dialyzer according to the fifth embodiment of the present invention.
In the figure, 1, a low-flux dialysis area, 1.1, a low-flux dialysis wire, 2, a high-flux dialysis area, 2.1, a high-flux dialysis wire, 3, a blood inlet, 4, a blood outlet, 5, a dialysate inlet, 6, a dialysate outlet, 7, a negative pressure suction port, 8, a dialysate containing cavity, 9 and a negative pressure suction cavity.
Detailed Description
Example one
A high-efficiency and safe hemofiltration dialyzer comprises a blood inlet 3, a blood outlet 4, a dialysate inlet 5, a dialysate outlet 6 and a negative pressure suction port 7. The low-flux dialysis wires 1.1 are arranged in the dialyzer, the high-flux dialysis wires 2.1 are arranged among the low-flux dialysis wires 1.1, and the dialysis area is divided into a low-flux dialysis area 1 and a high-flux dialysis area 2 according to the arrangement of the low-flux dialysis wires 1.1 and the high-flux dialysis wires 2.1.
The dialysate inlet 5 and the dialysate outlet 6 are communicated with the low-flux dialysis wire 1.1 and are blocked from the high-flux dialysis wire 2.1; the blood inlet 3 and the blood outlet 4 are both communicated with the low-flux dialysis area 1; the negative pressure suction port 7 is communicated with the high-flux dialysis area 2.
As shown in fig. 1 and fig. 2, the high-flux dialysis area 2 is arranged in the axial region of the dialyzer, and two ends of the high-flux dialysis area 2 are respectively communicated with the negative pressure suction ports 7 at two ends of the dialyzer; a low-flux dialysis area 1 is arranged between the high-flux dialysis area 2 and the pipe wall of the dialyzer, and the low-flux dialysis area 1 is communicated with a blood inlet 3 and a blood outlet 4 which are arranged on the pipe wall of the dialyzer.
The blood inlet 3 and the blood outlet 4 are respectively arranged at the front end and the rear end of the dialyzer tube wall and are arranged in diagonal; the dialysate inlet 5 and the dialysate outlet 6 are arranged at the rear end and the front end, respectively, on the dialyzer tube wall. The blood enters from the front end of the dialyzer and flows out from the other side of the rear end, so that the liquid exchange of the blood in the dialyzer is fully realized; the dialysate flows in the opposite direction to the blood flow, facilitating fluid exchange.
The center in the hemofiltration dialyzer is a high-flux dialysis area 2, the outer side is a low-flux dialysis area 1, and blood enters the low-flux dialysis area 1 from a blood inlet 3 on the wall of the dialyzer; the high-flux dialysis area 2 forms a negative pressure area through the negative pressure suction at the two ends, and the blood flows from the outer low-flux dialysis area 1 to the central high-flux dialysis area 2 under the action of the negative pressure and flows out from a blood outlet 4 on the wall of the dialyzer through the outer low-flux dialysis area 1. The structure has the advantages of high use efficiency, simple manufacture, low cost and easy popularization and application.
In the embodiment, two end parts of the hemofiltration dialyzer are provided with dialysate containing cavities 8, and the dialysate containing cavities 8 are communicated with the low-flux dialysis area 1 and blocked from the high-flux dialysis area 2; the dialysate reservoir 8 communicates with a dialysate inlet 5 and a dialysate outlet 6. This cerini dialyser cerini still is provided with negative pressure suction chamber 9, and negative pressure suction chamber 9 is located the both ends of cerini dialyser cerini, the outside in dislysate appearance chamber 8 to hold the chamber 8 separation with the dislysate, the both sides outside end in both sides negative pressure suction chamber 9 sets up negative pressure suction mouth 7.
In use, dialysate enters the low flux dialysis wire 1.1 through the dialysate inlet 5 and then exits through the dialysate outlet 6; blood enters the low-flux dialysis area 1 from the blood inlet 3, is in fluid exchange with the low-flux dialysis wires 2.1 and then flows out from the blood outlet 4; the negative pressure suction port 7 is connected with a negative pressure device, so that the high-flux dialysis area 2 forms a negative pressure area, blood in the low-flux dialysis area 1 flows to the high-flux dialysis wire 2.1 under the action of negative pressure while performing liquid exchange with the low-flux dialysis wire 1.1, and macromolecular toxins in the blood can pass through the side wall of the high-flux dialysis wire 2.1, so that the macromolecular toxins in the blood can be removed; and the dialysate inlet 5 and the dialysate outlet 6 are both separated from the high-flux dialysis wire 2.1 through the dialysate containing cavity, so that the dialysate is prevented from entering the high-flux dialysis wire 2.1, and the liquid lost in the blood is supplemented by the dialysate in the low-flux dialysis wire 1.1, thereby ensuring the safety of dialysis.
As shown in fig. 3, the dialysis wire is a schematic structural diagram, the dialysis wire is a hollow fiber wire, and the side wall of the hollow fiber wire is provided with pores with different apertures according to different requirements, so as to realize liquid exchange. The pores on the dialysis wire have different diameters and different permeabilities, and the dialysis wire can be divided into a high-flux dialysis wire and a low-flux dialysis wire according to the different permeabilities of the dialysis wire.
Example two
A high-efficiency and safe hemofiltration dialyzer comprises a blood inlet 3, a blood outlet 4, a dialysate inlet 5, a dialysate outlet 6 and a negative pressure suction port 7. Low-flux dialysis wires 1.1 are arranged in the dialyzer, high-flux dialysis wires 2.1 are arranged among the low-flux dialysis wires 1.1, and a dialysis area is divided into a low-flux dialysis area 1 and a high-flux dialysis area 2 according to the arrangement of the low-flux dialysis wires 1.1 and the high-flux dialysis wires 2.1;
the dialysate inlet 5 and the dialysate outlet 6 are communicated with the low-flux dialysis wire 1.1 and are blocked from the high-flux dialysis wire 2.1; the blood inlet 3 and the blood outlet 4 are both communicated with the low-flux dialysis area 1; the negative pressure suction port 7 is communicated with the high-flux dialysis area 2.
In the present embodiment, as shown in fig. 4, the low-flux dialysis wire 1.1 and the high-flux dialysis wire 2.1 are horizontally layered, and the low-flux dialysis area 1 and the high-flux dialysis area 2 are arranged in layers at intervals.
Namely, blood enters the upper low-flux dialysis area 1 from a blood inlet 3 on the tube wall of the dialyzer, the high-flux dialysis area 2 forms a negative pressure area under the action of negative pressure suction, the blood in the upper low-flux dialysis area 1 downwards reaches the lower high-flux dialysis area 2, and part of macromolecular substances are left in the high-flux dialysis wire 2.1; the blood continues to flow downwards to the next low-flux dialysis area 1 and the next high-flux dialysis area 2 under the pressure of the blood pump, and the process is repeated until the blood reaches the bottommost low-flux dialysis area 1 and flows out from a blood outlet 4 on the tube wall of the dialyzer.
The blood inlet 3 and the blood outlet 4 are respectively arranged at the front end and the rear end of the dialyzer tube wall and are arranged in diagonal; the dialysate inlet 5 and the dialysate outlet 6 are arranged at the rear end and the front end, respectively, on the dialyzer tube wall. The blood enters from the front end of the dialyzer and flows out from the other side of the rear end, so that the liquid exchange of the blood in the dialyzer is fully realized; the dialysate flows in the opposite direction to the blood flow, facilitating fluid exchange.
EXAMPLE III
A high-efficiency and safe hemofiltration dialyzer comprises a blood inlet 3, a blood outlet 4, a dialysate inlet 5, a dialysate outlet 6 and a negative pressure suction port 7. Low-flux dialysis wires 1.1 are arranged in the dialyzer, high-flux dialysis wires 2.1 are arranged among the low-flux dialysis wires 1.1, and a dialysis area is divided into a low-flux dialysis area 1 and a high-flux dialysis area 2 according to the arrangement of the low-flux dialysis wires 1.1 and the high-flux dialysis wires 2.1;
the dialysate inlet 5 and the dialysate outlet 6 are communicated with the low-flux dialysis wire 1.1 and are blocked from the high-flux dialysis wire 2.1; the blood inlet 3 and the blood outlet 4 are both communicated with the low-flux dialysis area 1; the negative pressure suction port 7 is communicated with the high-flux dialysis area 2.
As shown in fig. 5, the low-flux dialysis wires 1.1 and the high-flux dialysis wires 2.1 are arranged in a ring-shaped layer, and the low-flux dialysis area 1 and the high-flux dialysis area 2 are arranged in a layer-by-layer manner at intervals.
Namely, blood enters an outer-layer low-flux dialysis area 1 from a blood inlet 3 on the tube wall of a dialyzer, a negative pressure area is formed in the high-flux dialysis area 2 under the action of negative pressure suction, the blood in the outer-layer low-flux dialysis area 1 downwards reaches an inner-layer high-flux dialysis area 2, and part of macromolecular substances are left in a layer of high-flux dialysis filaments 2.1; the blood continues to flow inwards to the inner low-flux dialysis area 1 and the inner high-flux dialysis area 2 under the pressure of the blood pump, and finally the blood flows out from the outermost low-flux dialysis area 1 to a blood outlet 4 on the wall of the dialyzer.
The blood inlet 3 and the blood outlet 4 are respectively arranged at the front end and the rear end of the dialyzer tube wall and are arranged in diagonal; the dialysate inlet 5 and the dialysate outlet 6 are arranged at the rear end and the front end, respectively, on the dialyzer tube wall. The blood enters from the front end of the dialyzer and flows out from the other side of the rear end, so that the liquid exchange of the blood in the dialyzer is fully realized; the dialysate flows in the opposite direction to the blood flow, facilitating fluid exchange.
Example four
A high-efficiency and safe hemofiltration dialyzer comprises a blood inlet 3, a blood outlet 4, a dialysate inlet 5, a dialysate outlet 6 and a negative pressure suction port 7. Low-flux dialysis wires 1.1 are arranged in the dialyzer, high-flux dialysis wires 2.1 are arranged among the low-flux dialysis wires 1.1, and a dialysis area is divided into a low-flux dialysis area 1 and a high-flux dialysis area 2 according to the arrangement of the low-flux dialysis wires 1.1 and the high-flux dialysis wires 2.1;
the dialysate inlet 5 and the dialysate outlet 6 are communicated with the low-flux dialysis wire and are blocked from the high-flux dialysis wire; the blood inlet 3 and the blood outlet 4 are both communicated with the low-flux dialysis area 1; the negative pressure suction port 7 is communicated with the high-flux dialysis area 2.
As shown in fig. 6, the low-flux dialysis wires 1.1 and the high-flux dialysis wires 2.1 are respectively arranged in a sector shape with the axis of the dialyzer as the center, and the low-flux dialysis zone 1 and the high-flux dialysis zone 2 are arranged at intervals to form a cylindrical dialysis zone.
Because the blood inlet 3 and the blood outlet 4 are communicated with the low-flux dialysis area 1, the blood inlet 3 and the blood outlet 4 are both arranged on the outer side tube wall of the sector formed by the low-flux dialysis wires and are distributed diagonally for improving the blood exchange efficiency, blood enters the low-flux dialysis area 1 of the sector, the high-flux dialysis area 2 forms a negative pressure area under the action of negative pressure suction, the blood in the low-flux dialysis area 1 reaches the adjacent high-flux dialysis area 2 towards two sides, and part of macromolecular substances are left in the high-flux dialysis wires 2.1; the blood continues to reach the next low-flux dialysis area 1 and the high-flux dialysis area 2 under the pressure of the blood pump, and finally the blood flows out from the low-flux dialysis area 1 at the opposite side to a blood outlet 4 on the wall of the dialyzer.
The blood inlet 3 and the blood outlet 4 are respectively arranged at the front end and the rear end of the dialyzer tube wall and are arranged in diagonal; the dialysate inlet 5 and the dialysate outlet 6 are arranged at the rear end and the front end, respectively, on the dialyzer tube wall. The blood enters from the front end of the dialyzer and flows out from the other side of the rear end, so that the liquid exchange of the blood in the dialyzer is fully realized; the dialysate flows in the opposite direction to the blood flow, facilitating fluid exchange.
EXAMPLE five
A high-efficiency and safe hemofiltration dialyzer comprises a blood inlet 3, a blood outlet 4, a dialysate inlet 5, a dialysate outlet 6 and a negative pressure suction port 7. Low-flux dialysis wires 1.1 are arranged in the dialyzer, high-flux dialysis wires 2.1 are arranged among the low-flux dialysis wires 1.1, and a dialysis area is divided into a low-flux dialysis area 1 and a high-flux dialysis area 2 according to the arrangement of the low-flux dialysis wires 1.1 and the high-flux dialysis wires 2.1;
the dialysate inlet 5 and the dialysate outlet 6 are communicated with the low-flux dialysis wire 1.1 and are blocked from the high-flux dialysis wire 2.1; the blood inlet 3 and the blood outlet 4 are both communicated with the low-flux dialysis area 1; the negative pressure suction port 7 is communicated with the high-flux dialysis area 2.
As shown in fig. 7, the high-flux dialysis zone 2 is arranged uniformly within the low-flux dialysis zone 1.
Blood enters the low-flux dialysis area 1 from a blood inlet 3 on the pipe wall of the dialyzer, the high-flux dialysis area 2 forms a negative pressure area under the action of negative pressure suction, the blood in the low-flux dialysis area 1 flows to the high-flux dialysis area 2, and part of macromolecular substances are left in the high-flux dialysis filaments 2.1. The blood finally flows out of the low-flux dialysis zone 1 to the blood outlet 4 on the dialyzer tube wall.
The blood inlet 3 and the blood outlet 4 are respectively arranged at the front end and the rear end of the dialyzer tube wall and are arranged in diagonal; the dialysate inlet 5 and the dialysate outlet 6 are arranged at the rear end and the front end, respectively, on the dialyzer tube wall. The blood enters from the front end of the dialyzer and flows out from the other side of the rear end, so that the liquid exchange of the blood in the dialyzer is fully realized; the dialysate flows in the opposite direction to the blood flow, facilitating fluid exchange.
EXAMPLE six
The embodiment of the utility model also provides a high-efficiency and safe dialysis device which comprises a dialyzer, a blood pump, a dialysate pump and a negative pressure device, wherein the dialyzer is the dialyzer, two ends of the dialyzer are connected with the negative pressure device, a blood inlet and a blood outlet of the dialyzer are respectively connected with the blood pump, and a dialysate inlet and a dialysate outlet of the dialyzer are respectively connected with the dialysate pump.
The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the utility model to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (10)
1. A high-efficiency and safe hemofiltration dialyzer is characterized by comprising a blood inlet, a blood outlet, a dialysate inlet and a dialysate outlet, and further comprising a negative pressure suction port, wherein low-flux dialysis wires are arranged in the hemofiltration dialyzer, high-flux dialysis wires are arranged among the low-flux dialysis wires, and a dialysis area is divided into a low-flux dialysis area and a high-flux dialysis area according to the arrangement of the low-flux dialysis wires and the high-flux dialysis wires;
the dialysate inlet and the dialysate outlet are communicated with the low-flux dialysis wire and are blocked from the high-flux dialysis wire; the blood inlet and the blood outlet are communicated with the low-flux dialysis area; the negative pressure suction port is communicated with the high-flux dialysis area.
2. The efficient and safe dialyzer according to claim 1, wherein the high-flux dialysis area is arranged in the axial region of the dialyzer, and two ends of the high-flux dialysis area are respectively communicated with negative pressure suction ports at two ends of the dialyzer; and a low-flux dialysis area is arranged between the high-flux dialysis area and the pipe wall of the dialyzer, and the low-flux dialysis area is communicated with a blood inlet and a blood outlet which are formed in the pipe wall of the dialyzer.
3. The hemofiltration dialyzer of claim 1, wherein the low-flux dialysis wires are horizontally layered with the high-flux dialysis wires, and the low-flux dialysis zone is separated from the high-flux dialysis zone by layers.
4. The hemofiltration dialyzer of claim 1, wherein the low-flux dialysis wires and the high-flux dialysis wires are annularly layered, and the low-flux dialysis zone and the high-flux dialysis zone are layered.
5. The efficient and safe hemofiltration dialyzer as claimed in claim 1, wherein the low-flux dialysis wires and the high-flux dialysis wires are arranged in a sector shape centered on the center of the dialyzer, and the low-flux dialysis zone and the high-flux dialysis zone are disposed at an interval to form a cylindrical dialysis zone.
6. A high-efficiency and safe hemofiltration dialyzer according to claim 1, characterized in that the high-flux dialysis zone is arranged uniformly within the low-flux dialysis zone.
7. A high efficiency and safety hemofiltration dialyzer according to any one of claims 2 to 6, characterized in that said blood inlet and blood outlet are arranged diagonally in the front and rear end, respectively, of the wall of the dialyzer; the dialysate inlet and the dialysate outlet are arranged at the rear end and the front end, respectively, on the dialyzer tube wall.
8. A high-efficiency safe hemofiltration dialyzer according to any one of claims 1 to 6, characterized in that both ends of the dialyzer are provided with dialysate containers which are in communication with the low-flux dialysis zone and are blocked from the high-flux dialysis zone; the dialysate cavity is communicated with the dialysate inlet and the dialysate outlet.
9. The efficient and safe hemofiltration dialyzer as claimed in claim 8, wherein a negative pressure suction chamber is further provided, the negative pressure suction chamber is located at both ends of the dialyzer and outside the dialysate containing chamber and is blocked from the dialysate containing chamber, and negative pressure suction ports are provided at both outside ends of the negative pressure suction chambers at both sides.
10. An efficient and safe hemofiltration dialysis device is characterized by comprising a dialyzer, a blood pump, a dialysate pump and a negative pressure device, wherein the hemofiltration dialyzer is the dialyzer according to any one of claims 1 to 9, the two ends of the dialyzer are connected with the negative pressure device, a blood inlet and a blood outlet of the dialyzer are respectively connected with the blood pump, and a dialysate inlet and a dialysate outlet of the dialyzer are respectively connected with the dialysate pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121930296.9U CN215780394U (en) | 2021-08-17 | 2021-08-17 | Efficient and safe hemofiltration dialyzer and dialysis device |
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| CN202121930296.9U CN215780394U (en) | 2021-08-17 | 2021-08-17 | Efficient and safe hemofiltration dialyzer and dialysis device |
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| CN202121930296.9U Active CN215780394U (en) | 2021-08-17 | 2021-08-17 | Efficient and safe hemofiltration dialyzer and dialysis device |
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2021
- 2021-08-17 CN CN202121930296.9U patent/CN215780394U/en active Active
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