CN2652407Y - Medical artificial kidney axial flow dialysate dialyser - Google Patents
Medical artificial kidney axial flow dialysate dialyser Download PDFInfo
- Publication number
- CN2652407Y CN2652407Y CN 200320109687 CN200320109687U CN2652407Y CN 2652407 Y CN2652407 Y CN 2652407Y CN 200320109687 CN200320109687 CN 200320109687 CN 200320109687 U CN200320109687 U CN 200320109687U CN 2652407 Y CN2652407 Y CN 2652407Y
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- dialysis solution
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- end cap
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Abstract
The utility model relates to a medical axial-flow dialysate dialyzer for the artificial kidney which is characterized in that one end of the casing is provided with end cap at one side of the dialysate discharge pipe communication with the casing; the other end is provided with the other side of the dialysate discharge pipe communication with the casing, one side outside the casing in the radial direction is provided with a blood feeding pipe communicated with the casing; the other side is arranged in the radial direction a blood discharge pipe communicated with the casing; the casing is axially provided with a hollow fiber tube; a glue sealing layer is arranged between the two ends of the hollow fiber tube in the casing and between the inner walls of the casing and between a hollow fiber tube and a adjacent hollow fiber tube. The utility model changes the environment of the blood rout, increases the blood circulation passage and reduced the blood flow pressure. The utility model has passed the preliminary clinic observation and trail that proves advantages of high permeability, high working efficiency, low dialyzing time, good dialyzing effect and long service life and thereby can be promoted to used clinically.
Description
Technical field
This utility model belongs to medical attraction or pumping tool technical field, is specifically related to dialysis system.
Background technology
At present both at home and abroad at the laboratory and the artificial kidney dialyser of use clinically, its structure is that the hollow fibre pipe is installed in housing, the blood feed tube is installed on an axial end cap of housing, the other end covers the blood drain pipe is installed, and in the radially side of housing the dialysis solution drain pipe is installed, opposite side is equipped with the dialysis solution feed tube.The artificial kidney dialyser of this structure, after patients'blood is drawn from tremulous pulse by blood pump during use, continuously flow to the artificial kidney dialyser and advance the blood feed tube, flow through in the hollow fibre pipe, after filtering, the hollow fibre pipe flows back to patient's vein blood vessel from the blood drain pipe, the dialysis machine of dialysis solution through being connected with the artificial kidney dialyser is to its temperature, concentration, flow, pressure is adjusted the back and is flowed in the housing from the dialysis solution feed tube, flow through from the gap between the hollow fibre pipe, blood and dialysis solution are under the pressure effect of osmotic pressure and dialysis solution, toxin and moisture content in the blood exchange, and the dialysis solution that contains toxin is discharged from drain pipe.
The internal diameter of the hollow fibre pipe of above-mentioned artificial kidney dialyser is that 200 μ m, wall thickness are 40 μ m, in use, the time of each dialysis treatment is 4～5 hours, very easily cause blood coagulation, with hollow fibre pipe plug plug, to the patient who dialyses for a long time, the artificial kidney dialyser will use repeatedly, increase along with access times, part hollow fibre pipe plug plug, be difficult to during flushing the blood coagulation in the hollow fibre pipe is rinsed well, make the effective area of hollow fibre pipe reduce, have influence on clinical therapeutic efficacy.Because the pressure of hollow fibre pipe inner blood the hollow fibre tracheal rupture often occurs greater than the pressure of the outer dialysis solution of hollow fibre pipe, causes the artificial kidney dialyser to be damaged.The internal diameter of the hollow fibre pipe of above-mentioned artificial kidney dialyser is slightly larger than the diameter of hemocyte, easily hemocyte is damaged, and the patient who carries out dialysis treatment is for a long time caused anemia.
Above-mentioned artificial kidney dialyser blood is fashionable from axial flow, because the internal diameter of hollow fibre pipe is very little, resistance is very big, blood can not flow through in the hollow fibre pipe for the moment, in use, a large amount of blood coagulations appears in the end that often appears at hollow fibre pipe in the housing, once blood coagulation occurs, need stop dialysis, blood coagulation is removed totally, dialyse, what need dialysis will carry out twice dialysis in one week of patient, to take down the blood coagulation of hollow fibre tube end at every turn, can make the patient of dialysis cause anemia.
Summary of the invention
Technical problem to be solved in the utility model is the shortcoming of above-mentioned technology, provides that a kind of permeability is good, high efficiency, dialysis time is short, dialysis-effect good, the medical artificial kidney axial flow dialysis solution dialyser of long service life.
Solving the problems of the technologies described above the technical scheme that is adopted is: an end of housing be provided with housing in a side end cap of the dialysis solution drain pipe that links, the other end be provided with housing in the opposite side end cap of the dialysis solution feed tube that links, side outside housing radially establish with housing in the blood feed tube that links, opposite side radially establish with housing in the blood drain pipe that links, in housing, axially be provided with the hollow fibre pipe, in housing, be provided with the adhesive sealing layer between the two ends of hollow fibre pipe and the inner walls and between a hollow fibre pipe and the adjacent hollow fibre pipe.
Blood feed tube of the present utility model and dialysis solution drain pipe are arranged on the same side of housing, and blood drain pipe and dialysis solution feed tube are arranged on the same side of housing.
Dialysis solution drain pipe of the present utility model is arranged on the axial of a side end cap, and the dialysis solution feed tube is arranged on the axial of opposite side end cap.
Dialysis solution drain pipe of the present utility model is arranged on the axial centre line position of a side end cap, and the dialysis solution feed tube is arranged on the axial centre line position of opposite side end cap.
This utility model is compared with the artificial kidney dialyser that uses clinically at present, employing a side of housing radially be equipped with housing in the blood feed tube, the opposite side that link radially be equipped with housing in the blood drain pipe that links, on an end end cap of housing, be equipped with on dialysis solution drain pipe, the other end end cap dialysis solution feed tube is installed, in housing, be axially installed with the hollow fibre pipe.The artificial kidney dialyser of this structure, blood flows into from the blood feed tube, enter the space of flowing through in the housing between the hollow fibre pipe, flow back into patient's vein blood vessel from the blood drain pipe, dialysis solution flows into from the dialysis solution feed tube, enters the hollow fibre tube cavity of flowing through in the housing, discharges from the dialysis solution drain pipe, toxin in the patient blood and moisture content are exchanged, and the dialysis solution that contains toxin excretes.This utility model has changed blood flow road environment, increased the blood circulation passage, reduced resistance of blood flow, improved the microenvironment of other form material of hemocyte and blood, solved the impaired drawback of dialysis patient hemocyte in dialysis procedure, avoided in dialysis procedure hollow core fiber pipe and blood coagulation phenomenon that the hollow fibre tube end occurs, shortened dialysis time, prolonged the service life of dialyser.This utility model is on probation through clinical principium observation, proves that it has advantages such as permeability is good, high efficiency, dialysis time is short, dialysis-effect good, long service life, can promote the use of clinically.
Description of drawings
Fig. 1 is the structural representation of an embodiment of this utility model.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described, but this utility model is not limited to these embodiment.
In Fig. 1, the medical artificial kidney axial flow dialysis solution dialyser of present embodiment is made of housing 1, left end cap 2, blood feed tube 3, hollow fibre pipe 4, blood drain pipe 5, right end cap 6, dialysis solution feed tube 7, adhesive sealing layer 8,9 connections of dialysis solution drain pipe.
Left end at housing 1 has left end cap 2 by thread connection, right-hand member has right end cap 6 by thread connection, at left end cap 2 outer face axial centre line positions and the left end cap 2 dialysis solution drain pipe 9 that has been connected as a single entity, link in dialysis solution drain pipe 9 and the housing 1, at right end cap 6 outer face axial centre line positions and the right end cap 6 dialysis solution feed tube 7 that has been connected as a single entity, link in dialysis solution feed tube 7 and the housing 1, left radial outside housing 1 and the housing 1 blood feed tube 3 that has been connected as a single entity, link in blood feed tube 3 and the housing 1, link in right radial outside housing 1 and the housing 1 blood drain pipe 5 that has been connected as a single entity, blood drain pipe 5 and housing 1.In housing 1, be axially installed with hollow fibre pipe 4, hollow fibre pipe 4 is hollow semi-permeable membrane fibers, its internal diameter is that 200 μ m, wall thickness are 40 μ m, be sealed with adhesive sealing layer 8 between the two ends of hollow fibre pipe 4 and housing 1 inwall and between a hollow fibre pipe 4 and the adjacent hollow fibre pipe 4 in housing 1, adhesive sealing layer 8 is kept apart blood feed tube 3 and dialysis solution drain pipe 9, blood drain pipe 5 with dialysis solution feed tube 7.Blood feed tube 3 links by conduit and blood pump and patient's arteries during use, and blood drain pipe 5 links by conduit and patient's vein blood vessel, and dialysis solution feed tube 7 and dialysis solution drain pipe 9 link by conduit and dialysis machine.The artificial kidney dialyser of this structure, blood flows into from the footpath blood feed tube 3 to the left of housing 1, enter the space of flowing through in the housing 1 between the hollow fibre pipe 4, flow back into patient's vein blood vessel from the footpath blood drain pipe 5 to the right of housing 1, dialysis solution flows into from the dialysis solution feed tube 7 on the right end cap 6 of housing 1, enter hollow fibre pipe 4 inner chambers of flowing through in the housing 1, dialysis solution drain pipe 9 from the left end cap 2 of housing 1 is discharged, toxin in the patient blood and moisture content are exchanged, and the dialysis solution that contains toxin excretes.This utility model has changed blood flow road environment, increased the blood circulation passage, reduced resistance of blood flow, improved the microenvironment of other form material of hemocyte and blood, solved the impaired drawback of dialysis patient hemocyte in dialysis procedure, avoided in dialysis procedure hollow core fiber pipe 4 and blood coagulation phenomenon that hollow fibre pipe 4 ends occur, shortened dialysis time, prolonged the service life of dialyser.
Claims (5)
1, a kind of medical artificial kidney axial flow dialysis solution dialyser, it is characterized in that: an end of housing [1] be provided with housing [1] in a side end cap of the dialysis solution drain pipe [9] that links, the other end be provided with housing [1] in the opposite side end cap of the dialysis solution feed tube [7] that links, side outside housing [1] radially establish with housing [1] in the blood feed tube [3] that links, opposite side radially establish with housing [1] in the blood drain pipe [5] that links, in housing [1], axially be provided with hollow fibre pipe [4], in housing [1], be provided with adhesive sealing layer [8] between the two ends of hollow fibre pipe [4] and housing [1] inwall and between a hollow fibre pipe [4] and the adjacent hollow fibre pipe [4].
2, according to the described medical artificial kidney axial flow dialysis solution dialyser of claim 1, it is characterized in that: said blood feed tube [3] and dialysis solution drain pipe [9] are arranged on the same side of housing [1], and blood drain pipe [5] and dialysis solution feed tube [7] are arranged on the same side of housing [1].
3, according to claim 1 or 2 described medical artificial kidney axial flow dialysis solution dialysers, it is characterized in that: said dialysis solution drain pipe [9] is arranged on the axial of a side end cap, and dialysis solution feed tube [7] is arranged on the axial of opposite side end cap.
4, according to claim 1 or 2 described medical artificial kidney axial flow dialysis solution dialysers, it is characterized in that: said dialysis solution drain pipe [9] is arranged on the axial centre line position of a side end cap, and dialysis solution feed tube [7] is arranged on the axial centre line position of opposite side end cap.
5, according to the described medical artificial kidney axial flow dialysis solution dialyser of claim 3, it is characterized in that: said dialysis solution drain pipe [9] is arranged on the axial centre line position of a side end cap, and dialysis solution feed tube [7] is arranged on the axial centre line position of opposite side end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109687 CN2652407Y (en) | 2003-10-27 | 2003-10-27 | Medical artificial kidney axial flow dialysate dialyser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109687 CN2652407Y (en) | 2003-10-27 | 2003-10-27 | Medical artificial kidney axial flow dialysate dialyser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2652407Y true CN2652407Y (en) | 2004-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320109687 Expired - Fee Related CN2652407Y (en) | 2003-10-27 | 2003-10-27 | Medical artificial kidney axial flow dialysate dialyser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2652407Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110827276A (en) * | 2019-11-25 | 2020-02-21 | 河南科技大学 | Hemodialysis machine hollow fiber permeation state identification method based on deep learning |
-
2003
- 2003-10-27 CN CN 200320109687 patent/CN2652407Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110827276A (en) * | 2019-11-25 | 2020-02-21 | 河南科技大学 | Hemodialysis machine hollow fiber permeation state identification method based on deep learning |
| CN110827276B (en) * | 2019-11-25 | 2023-03-24 | 河南科技大学 | Hemodialysis machine hollow fiber permeation state identification method based on deep learning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |