CN111359042A - Hollow fiber hemodialyzer - Google Patents
Hollow fiber hemodialyzer Download PDFInfo
- Publication number
- CN111359042A CN111359042A CN202010189935.4A CN202010189935A CN111359042A CN 111359042 A CN111359042 A CN 111359042A CN 202010189935 A CN202010189935 A CN 202010189935A CN 111359042 A CN111359042 A CN 111359042A
- Authority
- CN
- China
- Prior art keywords
- hollow fiber
- cylindrical shell
- blood
- dialysate
- integrally formed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 43
- 239000008280 blood Substances 0.000 claims abstract description 56
- 210000004369 blood Anatomy 0.000 claims abstract description 56
- 230000001681 protective effect Effects 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000004806 packaging method and process Methods 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 10
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 231100000252 nontoxic Toxicity 0.000 claims description 4
- 230000003000 nontoxic effect Effects 0.000 claims description 4
- 239000004695 Polyether sulfone Substances 0.000 claims description 3
- 229920006393 polyether sulfone Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 8
- 239000003292 glue Substances 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000000502 dialysis Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000002633 protecting effect Effects 0.000 description 6
- 238000001631 haemodialysis Methods 0.000 description 4
- 230000000322 hemodialysis Effects 0.000 description 4
- 230000010287 polarization Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1621—Constructional aspects thereof
Abstract
The invention discloses a hollow fiber hemodialyzer, which comprises a cylindrical shell, wherein the left side and the right side of the cylindrical shell are respectively communicated with a dialysate inlet and a dialysate outlet, the inner walls of the two ends of the cylindrical shell are uniformly and integrally formed with annular flow guide distribution rings, a plurality of hollow fiber tubes are placed in the cylindrical shell, the end parts of the two ends of each hollow fiber tube are respectively bonded with packaging glue which is bonded on the inner wall of the cylindrical shell, so that the hollow fiber tubes and the cylindrical shell are fixedly connected, the left end and the right end of lithium of the cylindrical shell are respectively and integrally formed with a blood outlet and a blood inlet, the outer sides of the blood outlet and the blood inlet are respectively and spirally connected with end covers, a blood communication port is integrally formed at the center of each end cover, a port blocking cover is covered on the blood communication port, a protective cap is integrally formed on the port blocking cover, the protective cap is clamped on the end covers, so that the contact area between, the broken rate of the fiber tube is reduced, and the service life is prolonged.
Description
Technical Field
The invention belongs to the technical field of hemodialyzers, and particularly relates to a hollow fiber hemodialyzer.
Background
The hemodialyzer is called dialyzer for short, is a pipeline and a container for solute exchange between blood and dialysate, and is a key part of hemodialysis. The dialyzer mainly comprises a support structure and a dialysis membrane, wherein the dialysis membrane is an important component of the dialyzer and is a semipermeable membrane which only allows molecules smaller than the pore diameter of the membrane to pass through, and the membrane material is an improved cellulose membrane or a synthetic membrane which can be made into a high-flux dialyzer.
When the existing hemodialyzer is used for hemodialysis, the concentration polarization phenomenon is easy to occur, the contact area between dialysate and the surface of a fiber tube is small, the removal rate is low, and the fiber tube breakage rate is high.
Disclosure of Invention
The invention aims to provide a hollow fiber hemodialyzer, which aims to solve the problems that the concentration polarization phenomenon is easy to occur when the existing hemodialyzer is used for hemodialysis, the contact area between dialysate and the surface of a fiber tube is small, the removal rate is low, and the fiber breakage rate of the fiber tube is high in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hollow fiber hemodialyzer comprises a cylindrical shell, the left side and the right side of the cylindrical shell are respectively communicated with a dialysate inlet and a dialysate outlet, the inner walls of the two ends of the cylindrical shell are integrally formed with annular flow guide distribution rings, a plurality of hollow fiber tubes are arranged in the cylindrical shell, the end parts of the two ends of the hollow fiber tube are both bonded with packaging glue which is bonded on the inner wall of the cylindrical shell, thereby realizing the fixed connection between the hollow fiber tube and the cylindrical shell, the left and the right lithium ends of the cylindrical shell are respectively provided with a blood outlet and a blood inlet in an integrated manner, the outer sides of the blood outlet and the blood inlet are respectively connected with an end cover in a threaded manner, the center of the end cover is integrally formed with a blood communication port, the blood intercommunication port is covered with the port blanking cap, the port blanking cap is integrated into one piece and is provided with a protective cap, and the protective cap is clamped on the end cap.
Preferably, the annular flow guide distribution ring is located at a position facing the dialysate inlet and the dialysate outlet, and one end of the annular flow guide distribution ring away from the cylindrical shell inclines towards the direction of the dialysate inlet or the dialysate outlet facing the annular flow guide distribution ring.
Preferably, circular clamping grooves are formed in the outer cylindrical surface of one side, far away from the cylindrical shell, of the blood outlet and the blood inlet, sealing rings are sleeved in the circular clamping grooves, and the sealing rings are in close contact with the inner wall of the end cover.
Preferably, the inner wall of the protective cap is integrally formed with a plurality of clamping blocks at equal angles, a clamping groove matched with the clamping blocks is formed in the outer cylindrical surface of the end cover, and the clamping blocks are clamped on the clamping groove.
Preferably, the outer cylindrical surface of the protective cap is uniformly provided with anti-skid grains.
Preferably, the packaging adhesive is a nontoxic medical polyurethane adhesive.
Preferably, the hollow fiber tube is a polyether sulfone hollow fiber membrane.
The invention has the technical effects and advantages that: compared with the prior art, the hollow fiber hemodialyzer provided by the invention has the following advantages:
1. in addition, the annular flow guide distribution rings arranged on the cylindrical shell are more favorable for preventing the dialyzate from directly entering the cylindrical shell to damage the hollow fiber tube, reducing the fiber breakage rate of the fiber tube and prolonging the service life;
2. the invention realizes the sealing when the end cover is fixedly connected with the blood outlet and the blood inlet by arranging the circular clamping groove on the outer cylindrical surface of one side of the blood outlet and the blood inlet, which is far away from the cylindrical shell, the sealing ring is sleeved in the circular clamping groove, the sealing ring is tightly contacted with the inner wall of the end cover, thereby preventing external foreign matters from entering the cylindrical shell from gaps among the end cover, the blood outlet and the blood inlet, realizing the sealing and protecting functions, a plurality of clamping blocks are integrally formed on the inner wall of the protecting cap at equal angles, the outer cylindrical surface of the end cover is provided with the clamping groove matched with the clamping blocks, the clamping blocks are clamped on the clamping groove, so that the protecting cap and the end cover are clamped together through the clamping blocks and the clamping grooves, the protecting cap and the end cover are firmly connected and are not easy to loosen, the outer cylindrical surface of the protecting cap is, avoid skidding influence and use.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a diagram of the construction of the balance of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is an exploded view of the cylindrical shell and seal ring of the present invention;
FIG. 5 is a first end cap configuration of the present invention;
FIG. 6 is a second end cap configuration of the present invention;
FIG. 7 is a first embodiment of the present invention;
fig. 8 is a second structure of the protective cap of the present invention.
Reference numerals: 1. a cylindrical housing; 2. a dialysate inlet; 3. a dialysate outlet; 4. a hollow fiber tube; 5. packaging glue; 6. a blood outlet; 7. a blood inlet; 8. an end cap; 9. a blood communication port; 10. a port block cover; 11. a protective cap; 12. an annular flow guide distribution ring; 13. a circular slot; 14. a seal ring; 15. a clamping block; 16. a card slot; 17. and (4) anti-skid lines.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a hollow fiber hemodialyzer as shown in figures 1-8, which comprises a cylindrical shell 1, wherein the left side and the right side of the cylindrical shell 1 are respectively communicated with a dialysate inlet 2 and a dialysate outlet 3, a plurality of hollow fiber tubes 4 are placed in the cylindrical shell 1, the hollow fiber tubes 4 are polyether sulfone hollow fiber membranes, the permeability is high, the hemodialysis effect is good, annular flow guide distribution rings 12 are integrally formed on the inner walls of the two ends of the cylindrical shell 1, the annular flow guide distribution rings 12 are positioned at the positions facing the dialysate inlet 2 and the dialysate outlet 3, one end of each annular flow guide distribution ring 12, which is far away from the cylindrical shell 1, inclines towards the dialysate inlet 2 or the dialysate outlet 3 facing the annular flow guide distribution ring, so that dialysate flows along the tangential direction of the outer surface of the hollow fiber tubes 4 in the dialysis process, and the concentration polarization phenomenon is greatly reduced, the contact area between the dialysate and the surface of the hollow fiber tube 4 is effectively increased, the dialysate turbulent flow effect can be achieved, the dispersion effect is enlarged, the removal rate is increased, and meanwhile, the annular flow guide distribution ring 12 is more favorable for preventing the dialysate from damaging the hollow fiber tube 4 when directly entering a dialysis chamber, the filament breakage rate of the hollow fiber tube 4 is reduced, and the service life is prolonged;
the end parts of the two ends of the hollow fiber tube 4 are respectively bonded with packaging glue 5, the packaging glue 5 is a nontoxic medical polyurethane adhesive, the packaging glue is safe and nontoxic, the safety of the whole device is improved, the packaging glue 5 is bonded on the inner wall of the cylindrical shell 1, so that the hollow fiber tube 4 is fixedly connected with the cylindrical shell 1, the left lithium end and the right lithium end of the cylindrical shell 1 are respectively and integrally formed with a blood outlet 6 and a blood inlet 7, the outer sides of the blood outlet 6 and the blood inlet 7 are respectively in threaded connection with an end cover 8, the center of the end cover 8 is integrally formed with a blood communication port 9, the blood communication port 9 is covered with a port blocking cover 10, the port blocking cover 10 is integrally formed with a protective cap 11, and the protective cap 11 is clamped on the end cover 8;
the blood outlet 6 and the blood inlet 7 are provided with a circular clamping groove 13 on the outer cylindrical surface of one side far away from the cylindrical shell 1, a sealing ring 14 is sleeved in the circular clamping groove 13, the sealing ring 14 is in close contact with the inner wall of the end cover 8 to realize sealing when the end cover 8 is fixedly connected with the blood outlet 6 and the blood inlet 7, so that external foreign matters are prevented from entering the cylindrical shell 1 from a gap between the end cover 8 and the blood outlet 6 as well as the blood inlet 7 to realize sealing and protecting effects, a plurality of clamping blocks 15 are integrally formed on the inner wall of the protective cap 11 at equal angles, a clamping groove 16 matched with the clamping blocks 15 is formed on the outer cylindrical surface of the end cover 8, the clamping blocks 15 are clamped on the clamping groove 16, so that the protective cap 11 and the end cover 8 are clamped together through the clamping blocks 15 and the clamping groove 16, the protective cap is firmly connected with the protective cap and is not easy, the friction force between the fingers and the protective cap 11 is improved, the protective cap 11 is convenient to take down from the end cover 8, and the use is prevented from being influenced by slipping.
The structure principle is as follows: the left side and the right side of the cylindrical shell 1 are respectively communicated with a dialysate inlet 2 and a dialysate outlet 3, the end parts of the left end and the right end of the cylindrical shell 1 are respectively integrally formed with a blood outlet 6 and a blood inlet 7, the dialysate inlet 2 and the blood outlet 6 are positioned on the same side of the cylindrical shell 1, and the dialysate outlet 3 and the blood inlet 7 are positioned on the other side of the cylindrical shell 1, so that the flow directions of blood and dialysate are opposite during dialysis, and the dialysis effect is improved;
annular flow guide distribution rings 12 are integrally formed on the inner walls of two sides of the cylindrical shell 1, the annular flow guide distribution rings 12 are located at positions opposite to the dialysate inlet 2 and the dialysate outlet 3, one end, far away from the cylindrical shell 1, of each annular flow guide distribution ring 12 inclines towards the direction of the dialysate inlet 2 or the dialysate outlet 3 opposite to the end, so that dialysate flows along the tangential direction of the outer surface of the hollow fiber tube 4 in a dialysis process, the concentration polarization phenomenon is greatly reduced, the contact area of the dialysate and the surface of the hollow fiber tube 4 is effectively improved, the turbulent flow effect of the dialysate can be achieved, the dispersion effect is enlarged, the removal rate is improved, meanwhile, the annular flow guide distribution rings 12 are more favorable for preventing the dialysate from damaging the hollow fiber tube 4 when directly entering a dialysis chamber, the filament breakage rate of the hollow fiber tube 4 is reduced, and the service life is prolonged;
the end cover 8 is connected to the blood outlet 6 and the blood inlet 7 in a threaded mode, the blood communication port 9 is formed in the middle of the end cover 8 in an integrated mode, sealing of the cylindrical shell 1 is achieved, blood can enter and exit the cylindrical shell 1 through the blood communication port 9, the protective cover 11 is clamped on the end cover 8 when the blood is not used, the blood communication port 9 on the end cover 8 is blocked by the port blocking cover 10 on the protective cover 11, overall sealing of the cylindrical shell 1 is achieved, external foreign matters are prevented from entering, and isolation and protection effects are achieved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. A hollow fiber hemodialyzer comprising a cylindrical housing (1), characterized in that: the left side and the right side of a cylindrical shell (1) are respectively communicated with a dialysate inlet (2) and a dialysate outlet (3), the inner walls of the two ends of the cylindrical shell (1) are respectively integrally formed with an annular flow guide distribution ring (12), a plurality of hollow fiber tubes (4) are placed in the cylindrical shell (1), the end parts of the two ends of each hollow fiber tube (4) are respectively bonded with a packaging adhesive (5), the packaging adhesive (5) is bonded on the inner wall of the cylindrical shell (1), so that the hollow fiber tubes (4) and the cylindrical shell (1) are fixedly connected, the left lithium end and the right lithium end of the cylindrical shell (1) are respectively integrally formed with a blood outlet (6) and a blood inlet (7), the outer sides of the blood outlet (6) and the blood inlet (7) are respectively screwed with an end cover (8), and the center of the end cover (8) is integrally formed with a blood communication port (9), the blood communication port (9) is covered with a port blocking cover (10), the port blocking cover (10) is integrally formed with a protective cap (11), and the protective cap (11) is connected to the end cover (8) in a clamping mode.
2. A hollow fiber hemodialyzer according to claim 1, characterized in that: the annular flow guide distribution ring (12) is located at a position right opposite to the dialysate inlet (2) and the dialysate outlet (3), and one end, far away from the cylindrical shell (1), of the annular flow guide distribution ring (12) inclines towards the direction of the dialysate inlet (2) or the dialysate outlet (3) right opposite to the annular flow guide distribution ring.
3. A hollow fiber hemodialyzer according to claim 1, characterized in that: the blood outlet (6) and the blood inlet (7) are far away from the outer cylindrical surface of one side of the cylindrical shell (1), a circular clamping groove (13) is formed in the outer cylindrical surface, a sealing ring (14) is sleeved in the circular clamping groove (13), and the sealing ring (14) is in close contact with the inner wall of the end cover (8).
4. A hollow fiber hemodialyzer according to claim 1, characterized in that: a plurality of clamping blocks (15) are integrally formed on the inner wall of the protective cap (11) at equal angles, clamping grooves (16) matched with the clamping blocks (15) are formed in the outer cylindrical surface of the end cover (8), and the clamping blocks (15) are clamped on the clamping grooves (16).
5. A hollow fiber hemodialyzer according to claim 1, characterized in that: and anti-skid grains (17) are uniformly arranged on the outer cylindrical surface of the protective cap (11).
6. A hollow fiber hemodialyzer according to claim 1, characterized in that: the packaging adhesive (5) is a nontoxic medical polyurethane adhesive.
7. A hollow fiber hemodialyzer according to claim 1, characterized in that: the hollow fiber tube (4) is a polyether sulfone hollow fiber membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189935.4A CN111359042A (en) | 2020-03-18 | 2020-03-18 | Hollow fiber hemodialyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010189935.4A CN111359042A (en) | 2020-03-18 | 2020-03-18 | Hollow fiber hemodialyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111359042A true CN111359042A (en) | 2020-07-03 |
Family
ID=71198661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010189935.4A Pending CN111359042A (en) | 2020-03-18 | 2020-03-18 | Hollow fiber hemodialyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111359042A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485908A (en) * | 2009-02-06 | 2009-07-22 | 江苏朗生生命科技有限公司 | Housing of hemoconcentration device |
| CN102078646A (en) * | 2011-01-22 | 2011-06-01 | 江西三鑫医疗器械集团有限公司 | Polyether sulfone hollow fiber blood dialyzer |
| CN103877634A (en) * | 2014-03-10 | 2014-06-25 | 石家庄达爱医疗器械科技有限公司 | Hemodialyzer and hematodialysis device |
| CN204106673U (en) * | 2014-08-29 | 2015-01-21 | 苏州君康医疗科技有限公司 | A kind of housing of hemodialyzer |
| CN204275132U (en) * | 2014-11-17 | 2015-04-22 | 珠海健帆生物科技股份有限公司 | A kind of apparatus for purifying blood that synchronously can realize dialysing and perfusion is treated |
-
2020
- 2020-03-18 CN CN202010189935.4A patent/CN111359042A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485908A (en) * | 2009-02-06 | 2009-07-22 | 江苏朗生生命科技有限公司 | Housing of hemoconcentration device |
| CN102078646A (en) * | 2011-01-22 | 2011-06-01 | 江西三鑫医疗器械集团有限公司 | Polyether sulfone hollow fiber blood dialyzer |
| CN103877634A (en) * | 2014-03-10 | 2014-06-25 | 石家庄达爱医疗器械科技有限公司 | Hemodialyzer and hematodialysis device |
| CN204106673U (en) * | 2014-08-29 | 2015-01-21 | 苏州君康医疗科技有限公司 | A kind of housing of hemodialyzer |
| CN204275132U (en) * | 2014-11-17 | 2015-04-22 | 珠海健帆生物科技股份有限公司 | A kind of apparatus for purifying blood that synchronously can realize dialysing and perfusion is treated |
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| PB01 | Publication | ||
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Application publication date: 20200703 |