CN220070426U - Disposable sterile hemodialysis catheter - Google Patents
Disposable sterile hemodialysis catheter Download PDFInfo
- Publication number
- CN220070426U CN220070426U CN202321606647.XU CN202321606647U CN220070426U CN 220070426 U CN220070426 U CN 220070426U CN 202321606647 U CN202321606647 U CN 202321606647U CN 220070426 U CN220070426 U CN 220070426U
- Authority
- CN
- China
- Prior art keywords
- adjusting
- way seat
- pipe
- hemodialysis catheter
- connecting pipe
- 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.)
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Links
- 238000001631 haemodialysis Methods 0.000 title claims abstract description 20
- 230000000322 hemodialysis Effects 0.000 title claims abstract description 20
- 230000000844 anti-bacterial effect Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 description 19
- 238000000502 dialysis Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 239000008280 blood Substances 0.000 description 6
- 210000004369 blood Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 208000009304 Acute Kidney Injury Diseases 0.000 description 1
- 208000033626 Renal failure acute Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 201000011040 acute kidney failure Diseases 0.000 description 1
- 208000012998 acute renal failure Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 208000020832 chronic kidney disease Diseases 0.000 description 1
- 208000022831 chronic renal failure syndrome Diseases 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000012959 renal replacement therapy Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
Abstract
The utility model belongs to the technical field of hemodialysis, and particularly relates to a disposable sterile hemodialysis catheter which comprises a three-way seat, a connecting pipe and two conveying pipes, wherein the connecting pipe is communicated with the two conveying pipes through the three-way seat, the three-way seat comprises a shunting section and an extension section, the two conveying pipes are led out from the extension section, the tail end of the connecting pipe extends into the shunting section, and an adjusting mechanism is arranged on the three-way seat; the adjusting mechanism comprises an adjusting column, the adjusting column movably penetrates through the extension section and abuts against the outer wall of the conveying pipe, a plurality of adjusting blocks are spirally arranged on the outer wall of the adjusting column, adjusting step grooves corresponding to the adjusting blocks are formed in the three-way seat, and the adjusting column rotates to enable the adjusting blocks to extend into the adjusting step grooves.
Description
Technical Field
The utility model belongs to the technical field of hemodialysis, and particularly relates to a disposable sterile hemodialysis catheter.
Background
Hemodialysis is one of the renal replacement therapy modes for patients with acute and chronic renal failure. The method comprises the steps of draining in-vivo blood to the outside of the body, passing through a dialyzer consisting of innumerable hollow fibers, wherein the blood and electrolyte solution (dialysate) with similar concentration of the body are in and out of the hollow fibers, and carrying out substance exchange by the dispersion, ultrafiltration, adsorption and convection principles to remove metabolic wastes in the body and maintain the balance of the electrolyte and acid and alkali; meanwhile, excessive water in the body is removed, the whole process of back transfusion of purified blood is called hemodialysis, one end of a connecting pipe is connected with a blood vessel pipe in the body by adopting a dialysis pipe in specific operation, and one end of a fixed pipe is connected with a dialysis instrument, so that the whole dialysis process is realized.
The utility model with the publication number of CN113952530A discloses a novel hemodialysis catheter, which comprises a conveying pipe, a fixing buckle, a three-way seat and a connecting pipe, wherein an adjusting structure is arranged on the conveying pipe and comprises a first knob and a second knob, external threads are arranged inside the adjusting structure, and the first knob and the second knob are aligned in the vertical direction. However, the screwing design of the first knob and the second knob is adopted, the screwing speed is low, the flow stopping effect can be achieved only by screwing twice, in the using process, in order to prevent body fluid from crossing and reduce the disinfection and sterilization cost, the adopted catheter is disposable, and for the disposable tube, the manufacturing cost and the manufacturing difficulty are high, so that the mass production is inconvenient.
Disclosure of Invention
Based on the above-mentioned problems in the background art, the present utility model provides a single-use sterile hemodialysis catheter.
The technical scheme adopted by the utility model is as follows: disposable sterile hemodialysis catheter: the three-way seat comprises a split flow section and an extension section, the two conveying pipes are led out from the extension section, the tail end of the connecting pipe extends into the split flow section, and an adjusting mechanism is arranged on the three-way seat; the adjusting mechanism comprises an adjusting column, the adjusting column movably penetrates through the extension section and abuts against the outer wall of the conveying pipe, a plurality of adjusting blocks are spirally arranged on the outer wall of the adjusting column, adjusting step grooves corresponding to the adjusting blocks are formed in the three-way seat, and the adjusting column rotates to enable the adjusting blocks to extend into the adjusting step grooves.
Further, the top of the adjusting column is provided with a pressing block.
Further, the bottom of the adjusting column is provided with an arc extrusion block.
Further, a gasket is arranged on the tee joint seat.
Further, the pad is flexible material for fitting the skin surface.
Further, the tail end of the conveying pipe is connected with an extension pipe in a clamping mode.
Further, the end cover of the extension tube is provided with an antibacterial cap.
Further, the connecting pipe is a polyurethane pipe or a polyethylene pipe.
The utility model has the beneficial effects that:
the catheter is connected with the catheter connected with the blood vessel through the connecting pipe, the conveying pipe is connected with the dialysis instrument, and the medical adhesive tape is stuck on the three-way seat to fix the catheter, so that dialysis is realized. In the dialysis process, the regulating blocks at different positions on the regulating column can be screwed into the regulating step groove to realize the flow limitation on the conveying pipe; after dialysis is finished, the uppermost regulating block of the regulating column is screwed into the regulating step groove, so that the regulating step groove is more rapid and convenient compared with threaded regulation, the outer wall of the conveying pipe is extruded and locked, and blood outflow is prevented. The setting of the adjusting mechanism can quickly achieve the effects of current limiting and current stopping; the three-way seat is directly improved without manufacturing redundant parts, and the cost is lower.
Drawings
The utility model can be further illustrated by means of non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic diagram of the present utility model;
FIG. 2 is a schematic view of a three-way seat according to the present utility model;
FIG. 3 is a schematic representation of a conditioning column of the present utility model;
the drawings are noted as follows:
the device comprises a connecting pipe 1, a conveying pipe 2, an adjusting mechanism 3, an adjusting step groove 31, an adjusting column 32, an adjusting block 321, a pressing block 322, an extruding block 323, a three-way seat 4, a gasket 41, a diversion section 42, an extension section 43, an extension pipe 5 and an antibacterial cap 51.
Detailed Description
As shown in fig. 1 to 3, the disposable sterile hemodialysis catheter comprises a three-way seat 4, a connecting pipe 1 and two conveying pipes 2, wherein the connecting pipe 1 is communicated with the two conveying pipes 2 through the three-way seat 4, the three-way seat 4 comprises a shunting section 42 and an extension section 43, the two conveying pipes 2 are led out from the extension section 43, the tail end of the connecting pipe 1 extends into the shunting section 42, and an adjusting mechanism 3 is arranged on the three-way seat 4; the adjusting mechanism 3 comprises an adjusting column 32, the adjusting column 32 movably penetrates through the extension section 43 and abuts against the outer wall of the conveying pipe 2, a plurality of adjusting blocks 321 are spirally arranged on the outer wall of the adjusting column 32, an adjusting step groove 31 corresponding to the adjusting blocks 321 is formed in the three-way seat 4, and the adjusting column 32 rotates to enable the adjusting blocks 321 to extend into the adjusting step groove 31.
By adopting the technical scheme, the catheter connected with the blood vessel is connected through the connecting pipe 1, the conveying pipe 2 is connected with the dialyser, and the catheter is fixed by sticking the medical adhesive tape on the three-way seat 4, so that dialysis is realized. In the dialysis process, the regulating blocks 321 at different positions on the regulating column 32 can be screwed into the regulating step groove 31 to realize the flow limitation on the conveying pipe 2; after the dialysis is finished, the uppermost regulating block 321 of the regulating column 32 is screwed into the regulating step groove 31, and the outer wall of the conveying pipe 2 is squeezed and locked to prevent blood outflow.
Compared with the prior art, through the arrangement of the adjusting mechanism 3, the flow can be stopped after rotating for half a period, and the flow limiting and stopping effects can be quickly achieved; the three-way seat 4 is directly improved without manufacturing redundant parts, and the cost is lower.
Preferably, a pressing block 322 is disposed at the top of the adjusting column 32. The provision of the pressing block 322 increases the contact area of the hand with the adjustment column 32, facilitating the rotary pressing operation by the medical staff.
Preferably, the bottom of the adjusting column 32 is provided with an arc extrusion block 323. The arc design of extrusion piece 323 is convenient for directly contradict conveyer pipe 2 outer wall, reduces the resistance when adjusting post 32 is rotatory, is convenient for adjust the rotation of post 32 and extrude the restriction of flow, ends the flow.
Preferably, the three-way seat 4 is provided with a gasket 41. When in use, the gasket 41 ensures that the three-way seat 4 cannot slip on the skin by sticking the adhesive tape on the three-way seat 4, so that the fixing effect is better.
Preferably, the pad 41 is made of flexible material for adhering to the skin surface. The pad 41 is made of flexible material and can be bent to be beneficial to fitting the skin.
Preferably, the end of the conveying pipe 2 is clamped with an extension pipe 5. One end of the extension tube 5 is clamped into the conveying tube 2, and the other end is connected with a dialyser to realize dialysis.
Preferably, the end of the extension tube 5 is covered with an antibacterial cap 51. The antibacterial cap 51 is arranged to seal the conveying pipe 2 by the antibacterial cap 51 after the dialysis is finished, so that the protection effect is achieved.
Preferably, the connecting pipe 1 is a polyurethane pipe or a polyethylene pipe. The polyurethane or polyethylene catheter is hard in normal temperature environment, but becomes soft in body temperature environment, and is suitable for being inserted into the body for dialysis.
The working mode of the utility model is as follows:
when in use, the connecting pipe 1 is connected with a catheter connected with a blood vessel, the extension pipe 5 is arranged on the conveying pipe 2, the other end of the extension pipe 5 is connected with a dialyser, and a medical adhesive tape is stuck on the three-way seat 4 to fix the catheter, so that the patient starts to dialyze. In the dialysis process, the regulating blocks 321 at different positions on the regulating column 32 can be screwed into the regulating step groove 31 to realize the flow limitation on the conveying pipe 2; after the dialysis is finished, the uppermost regulating block 321 of the regulating column 32 is screwed into the regulating step groove 31, the outer wall of the conveying pipe 2 is squeezed and locked, the blood outflow is prevented, the extension pipe 5 is taken down, and the antibacterial cap 51 is covered on the port of the conveying pipe 2, so that the interface infection is prevented.
The present utility model has been described in detail above. The description of the specific embodiments is only intended to aid in understanding the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (8)
1. A disposable sterile hemodialysis catheter, characterized by: the three-way connecting device comprises a three-way seat (4), a connecting pipe (1) and two conveying pipes (2) which are integrally arranged, wherein the connecting pipe (1) is communicated with the two conveying pipes (2) through the three-way seat (4), the three-way seat (4) comprises a diversion section (42) and an extension section (43), the two conveying pipes (2) are led out from the extension section (43), the tail end of the connecting pipe (1) extends into the diversion section (42), and an adjusting mechanism (3) is arranged on the three-way seat (4);
the adjusting mechanism (3) comprises an adjusting column (32), the adjusting column (32) movably penetrates through the extension section (43) and abuts against the outer wall of the conveying pipe (2), a plurality of adjusting blocks (321) are spirally arranged on the outer wall of the adjusting column (32), an adjusting step groove (31) corresponding to the adjusting blocks (321) is formed in the three-way seat (4), and the adjusting column (32) rotates to be used for the adjusting blocks (321) to extend into the adjusting step groove (31).
2. The single use sterile hemodialysis catheter according to claim 1, wherein: the top of the adjusting column (32) is provided with a pressing block (322).
3. The single use sterile hemodialysis catheter according to claim 2, wherein: the bottom of the adjusting column (32) is provided with an arc extrusion block (323).
4. The single use sterile hemodialysis catheter according to claim 1, wherein: a gasket (41) is arranged on the three-way seat (4).
5. The single use sterile hemodialysis catheter according to claim 4, wherein: the pad (41) is made of flexible materials and is used for being attached to the surface of the skin.
6. The single use sterile hemodialysis catheter according to claim 1, wherein: the tail end of the conveying pipe (2) is clamped with an extension pipe (5).
7. The single use sterile hemodialysis catheter according to claim 6, wherein: the end cover of the extension tube (5) is provided with an antibacterial cap (51).
8. The single use sterile hemodialysis catheter according to claim 1, wherein: the connecting pipe (1) is a polyurethane pipe or a polyethylene pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321606647.XU CN220070426U (en) | 2023-06-25 | 2023-06-25 | Disposable sterile hemodialysis catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321606647.XU CN220070426U (en) | 2023-06-25 | 2023-06-25 | Disposable sterile hemodialysis catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220070426U true CN220070426U (en) | 2023-11-24 |
Family
ID=88815273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321606647.XU Active CN220070426U (en) | 2023-06-25 | 2023-06-25 | Disposable sterile hemodialysis catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220070426U (en) |
-
2023
- 2023-06-25 CN CN202321606647.XU patent/CN220070426U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |