CN220558352U - Central venous catheter for blood purification - Google Patents
Central venous catheter for blood purification Download PDFInfo
- Publication number
- CN220558352U CN220558352U CN202321735649.9U CN202321735649U CN220558352U CN 220558352 U CN220558352 U CN 220558352U CN 202321735649 U CN202321735649 U CN 202321735649U CN 220558352 U CN220558352 U CN 220558352U
- Authority
- CN
- China
- Prior art keywords
- catheter
- central
- branch pipe
- luer connector
- blood purification
- Prior art date
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- 239000008280 blood Substances 0.000 title claims abstract description 21
- 210000004369 blood Anatomy 0.000 title claims abstract description 21
- 238000000746 purification Methods 0.000 title claims abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 4
- 238000000429 assembly Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000012567 medical material Substances 0.000 claims description 3
- 238000002627 tracheal intubation Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010001526 Air embolism Diseases 0.000 description 1
- 206010016717 Fistula Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003191 femoral vein Anatomy 0.000 description 1
- 230000003890 fistula Effects 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 210000004731 jugular vein Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 210000001321 subclavian vein Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model relates to the technical field of catheters for blood purification, in particular to a central venous catheter for blood purification, which comprises a central catheter, wherein the central catheter is communicated with a triangular base, two ends of the triangular base are respectively provided with a branch pipe interface, the branch pipe interfaces are respectively provided with a luer lock catch assembly, the other ends of the luer lock catch assemblies are provided with branch pipes corresponding to the central catheter, and the problems that the branch pipes in the prior art are damaged and inconvenient to replace and the pain of secondary intubation of patients is increased are effectively solved.
Description
Technical Field
The utility model relates to the technical field of catheters for blood purification, in particular to a central venous catheter for blood purification.
Background
Central venous catheterization is an important method for clinically establishing vascular access at present, and the catheterization route of the central venous catheterization mainly comprises internal jugular vein, femoral vein and subclavian vein, so that the central venous catheterization is a life line for patients who need temporary hemodialysis treatment for various reasons or cannot establish internal fistula.
The arterial and venous end (branch pipe) of the central venous catheter is positioned outside a patient body, and the arterial and venous end wall (branch pipe) is easily damaged due to frequent nursing operation, violent pulling, extrusion and other improper operations caused by treatment requirements, once the arterial and venous end wall (branch pipe) is damaged, the patient has the risks of infection and air embolism, and the central venous catheter must be pulled out to carry out intubation operation again in order to ensure the treatment requirements of the patient and avoid adverse reactions.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the central venous catheter for blood purification, which effectively solves the problems of inconvenient replacement of broken branch pipes and increased pain of secondary intubation of patients in the prior art.
In order to solve the problems, the utility model adopts the following technical scheme:
the central venous catheter for purifying blood includes central catheter, triangular base, and branch pipe interfaces with luer lock assembly and branch pipes corresponding to the central catheter.
Further, the luer lock catch assembly comprises a first luer connector connected with the branch pipe connector, a second luer connector is arranged at one end of the branch pipe, the first luer connector and the second luer connector are detachably connected through threads, and the inner cavities of the first luer connector and the second luer connector are smooth.
Further, a pair of liquid through cavities which are respectively communicated with the branch pipe connectors are arranged in the triangular base, and the liquid through cavities are communicated with the central catheter.
Further, two ends of the triangular base are respectively provided with a needle wing, and the needle wings are provided with needle penetrating holes.
Furthermore, the central catheter and the branch pipes are made of the same elastic medical material.
Further, umbrella handles are respectively arranged on two sides of the second luer connector.
The utility model has novel structure, ingenious conception and simple and convenient operation, and has the following advantages compared with the prior art:
the first luer connector is connected with the branch pipe connector, the second luer connector is connected with the branch pipe, and the first luer connector is detachably connected with the second luer connector, so that the sealing performance is good, the inner cavities of the first luer connector and the second luer connector are smooth, the situation of blood blockage can be avoided, when the branch pipe is damaged, the branch pipe at the outer end of the central catheter can be detached and separated, the re-drawing of a pipe for placing a pipe is not needed, the pain of a patient is greatly relieved, and the occurrence of medical accidents is avoided.
Drawings
FIG. 1 is an isometric view of a central venous catheter for blood purification according to the present utility model;
FIG. 2 is a front view of a central venous catheter for purifying blood according to the present utility model;
fig. 3 is a schematic view showing the structure of a second luer fitting of the central venous catheter for blood purification according to the present utility model;
reference numerals in the drawings: 1. a central conduit; 2. a triangular base; 3. a needle wing; 4. a branch pipe interface; 5. a first luer fitting; 6. an umbrella handle; 7. a second luer fitting; 8. a branch pipe; 9. and (5) penetrating through the needle hole.
Detailed Description
The following are specific embodiments of the present utility model, and the technical solutions of the present utility model are further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
The central venous catheter for blood purification comprises a central catheter 1, wherein the central catheter 1 is communicated with a triangular base 2, two ends of the triangular base 2 are respectively provided with a branch pipe 8 connector 4, the branch pipe 8 connectors 4 are respectively provided with a luer lock catch assembly, and the other ends of the luer lock catch assemblies are provided with branch pipes 8 corresponding to the central catheter 1.
When the utility model is used, the triangular base 2 plays a role in bearing, the central catheter 1 is placed into a patient, the branch pipe 8 is connected with the branch pipe 8 interface 4 on the triangular base 2 through the luer lock catch assembly, and the luer lock catch assembly has a detachable function, so that the branch pipe 8 can be directly replaced from the front end, and the problem of secondary pain of the patient caused by re-intubation in the prior art is effectively solved.
As shown in fig. 2 and 3, the luer lock assembly comprises a first luer connector 5 connected with a connector 4 of a branch pipe 8, a second luer connector 7 is arranged at one end of the branch pipe 8, the first luer connector 5 and the second luer connector 7 are detachably connected through threads, and the inner cavities of the first luer connector 5 and the second luer connector 7 are smooth.
Preferably, the first luer connector 5 is connected with the branch pipe 8 interface 4, the second luer connector 7 is connected with the branch pipe 8, the first luer connector 5 is detachably connected with the second luer connector 7, and due to threaded connection, the sealing performance is good, the inner cavities of the first luer connector 5 and the second luer connector 7 are smooth, the condition of blood blockage can be avoided, when the branch pipe 8 is broken, the branch pipe 8 at the outer end of the central catheter 1 can be detached and separated, the tube is not required to be pulled out again, the pain of a patient is greatly relieved, and the occurrence of medical accidents is avoided.
As shown in fig. 1 and 2, a pair of liquid through cavities which are respectively communicated with the connectors 4 of the branch pipes 8 are arranged in the triangular base 2, and the liquid through cavities are communicated with the central catheter 1.
Preferably, the triangular seat 2 plays a role of bearing, and the branch pipe 8 is communicated with the central catheter 1 through the liquid through cavity in the triangular seat 2.
As shown in fig. 1 and 2, two ends of the triangular base 2 are respectively provided with a needle wing 3, and the needle wing 3 is provided with a needle penetrating hole 9.
Preferably, the wings 3 are sutured to the patient's skin through the needle penetration holes 9 in the wings 3, avoiding loosening of the central catheter 1.
As shown in fig. 1, the central catheter 1 and the branch pipes 8 are made of the same elastic medical material.
Preferably, the consistency of the connection of the central conduit 1 and the branch pipe 8 is ensured, and the tightness of the interface and the smoothness of the inner cavity surface can be ensured.
As shown in fig. 1 and 2, both sides of the second luer fitting 7 are respectively provided with an umbrella handle 6.
Preferably, the second luer connector 7 is conveniently rotated through the umbrella handle 6 and detached, so that looseness of the central catheter 1 and the skin implantation position can be effectively avoided.
The working process of the utility model is as follows: when the central catheter is used, the central catheter 1 is placed in a patient, the first luer connector 5 is connected with the branch pipe 8 connector 4, the second luer connector 7 is connected with the branch pipe 8, and the first luer connector 5 is detachably connected with the second luer connector 7, so that the sealing performance is good, the inner cavities of the first luer connector 5 and the second luer connector 7 are smooth, the condition of blood blockage can be avoided, when the branch pipe 8 is damaged, the branch pipe 8 at the outer end of the central catheter 1 can be detached and separated, the tube is not required to be pulled out again for placing a tube, the pain of the patient is greatly reduced, and the occurrence of medical accidents is avoided.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions, without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. A central venous catheter for blood purification, characterized in that: the device comprises a central catheter (1), wherein the central catheter (1) is communicated with a triangular base (2), two ends of the triangular base (2) are respectively provided with a branch pipe (8) connector (4), luer lock catch assemblies are respectively arranged on the branch pipe (8) connectors (4), and the other ends of the luer lock catch assemblies are provided with branch pipes (8) corresponding to the central catheter (1).
2. A central venous catheter for blood purification as claimed in claim 1, wherein: the luer lock catch assembly comprises a first luer connector (5) connected with a branch pipe (8) connector (4), a second luer connector (7) is arranged at one end of the branch pipe (8), the first luer connector (5) and the second luer connector (7) are detachably connected through threads, and the inner cavities of the first luer connector (5) and the second luer connector (7) are smooth.
3. A central venous catheter for blood purification as claimed in claim 1, wherein: a pair of liquid through cavities which are respectively communicated with the connectors (4) of the branch pipes (8) are arranged in the triangular base (2), and the liquid through cavities are communicated with the central catheter (1).
4. A central venous catheter for blood purification as claimed in claim 3, wherein: needle wings (3) are respectively arranged at two ends of the triangular base (2), and needle penetrating holes (9) are formed in the needle wings (3).
5. A central venous catheter for blood purification as claimed in claim 1, wherein: the central catheter (1) and the branch pipes (8) are made of the same elastic medical material.
6. A central venous catheter for blood purification as claimed in claim 2, wherein: umbrella handles (6) are respectively arranged on two sides of the second luer connector (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321735649.9U CN220558352U (en) | 2023-07-04 | 2023-07-04 | Central venous catheter for blood purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321735649.9U CN220558352U (en) | 2023-07-04 | 2023-07-04 | Central venous catheter for blood purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220558352U true CN220558352U (en) | 2024-03-08 |
Family
ID=90092067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321735649.9U Active CN220558352U (en) | 2023-07-04 | 2023-07-04 | Central venous catheter for blood purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220558352U (en) |
-
2023
- 2023-07-04 CN CN202321735649.9U patent/CN220558352U/en active Active
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| GR01 | Patent grant |