CN201631868U - Peripherally vein inserted central venous catheter - Google Patents
Peripherally vein inserted central venous catheter Download PDFInfo
- Publication number
- CN201631868U CN201631868U CN2010201406700U CN201020140670U CN201631868U CN 201631868 U CN201631868 U CN 201631868U CN 2010201406700 U CN2010201406700 U CN 2010201406700U CN 201020140670 U CN201020140670 U CN 201020140670U CN 201631868 U CN201631868 U CN 201631868U
- Authority
- CN
- China
- Prior art keywords
- catheter
- joint
- cutting
- liquid medicine
- conduit
- 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.)
- Expired - Fee Related
Links
- 210000003462 vein Anatomy 0.000 title claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 238000001802 infusion Methods 0.000 claims description 24
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000008280 blood Substances 0.000 abstract description 12
- 210000004369 blood Anatomy 0.000 abstract description 12
- 239000003814 drug Substances 0.000 abstract description 10
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 206010027535 Microcheilia Diseases 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000002512 chemotherapy Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 235000016236 parenteral nutrition Nutrition 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 210000002620 vena cava superior Anatomy 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a peripherally vein inserted central venous catheter comprising a catheter and a closed needle-free liquid medicine transfusion joint, wherein the catheter is connected with the closed needle-free liquid medicine transfusion joint through a connecting device; the catheter wall is provided with a catheter cutting joint deviating the central axial surface of the catheter; the catheter cutting joint is at the natural closed state when not being conducted drawing return blood and transfusing and injecting the liquid medicine, and when a medical worker draws the return blood, the inner cavity of the catheter form negative pressure and the large lip of the catheter cutting joint is sunken inwards; and when the medical worker transfuses and injects the liquid medicine, the inner cavity of the catheter form positive pressure, and the large lip of the catheter cutting joint protrudes outwards; therefore, the catheter cutting joint has the function of a bidirectional catheter valve, as an inlet and an outlet of the transfused and injected liquid medicine, the catheter cutting joint can form an effective opening, thus facilitating the transfusion and injection of the liquid medicine. The central venous catheter has reasonable structure, convenient use and good liquid medicine transfusion and injection controllability, and can effectively prevent the catheter from being blocked.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, and specifically a kind of peripheral vein is inserted central venous catheter.
Background technology
We know, through central venous catheter (PICC) that peripheral vein puncture is inserted as art in monitoring, blood transfusion, fluid infusion, the various medicines for treatment of postoperative and cancer patient's chemotherapy, the path of parenteral nutrition, become the central vein catheter technology of a kind of maturation, safety, popularized gradually at home in recent years.At present, the central venous catheter that can keep somewhere lastingly comprises inlying catheter, airtight needleless infusion medicinal liquid joint, and inlying catheter is connected with airtight needleless infusion medicinal liquid joint by connecting device.Inlying catheter is positioned superior vena cava, is used to the patient that the venous transfusion treatment of medium to long term is provided.Central vein catheter is in the long periods of treatment process, not only solved the misery that patient punctures every day, can not cause local pain in some medicine for treatment of infusion (as potassium) yet, and improved nurse's work efficiency, but along with the popularization of central venous catheter clinical practice, many problems also come out gradually.It is the major issue that prolonged application vein treatment or nutrition patient run into that conduit stops up, and usually so more replace tubes or puncture again, it is generally acknowledged that to cause that conduit stops up former because clot, cellulose thrombosis or drug deposition.U.S. Pat 4671769 discloses a kind of venous duct, and it is at catheter wall upper edge central axis joint-cutting, and two lip limits of conduit joint-cutting are symmetry fully.The conduit joint-cutting is in the natural enclosing state when not drawing back blood and defeated, injection liquid.Conduit cavity formed negative pressure when medical personnel drew back blood, and two lip limits of conduit joint-cutting concave simultaneously; And conduit cavity forms malleation when medical personnel's infusion medicinal liquid, and two lip limits of conduit joint-cutting are simultaneously to evagination, and like this, joint-cutting is imported and exported as the infusion medicinal liquid, also plays valve simultaneously.But because two lip limits of joint-cutting are symmetrical fully, it is difficult to form effective vent, causes infusion medicinal liquid difficulty.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of rational in infrastructure, easy to use, has potential two-way conduit valve, and infusion medicinal liquid controllability is good, and the peripheral vein of avoiding conduit to stop up is inserted central venous catheter.
The technical scheme in the invention for solving the above technical problem is: a kind of peripheral vein is inserted central venous catheter, comprise conduit, airtight needleless infusion medicinal liquid joint, inlying catheter is connected with airtight needleless infusion medicinal liquid joint by connecting device, it is characterized in that departing from the catheter wall catheter center's axial plane and is provided with a conduit joint-cutting.
The said conduit joint-cutting of this utility model departs from the distance of catheter center's axial plane between the 0.2-0.6 millimeter.
Also be provided with a groove on the pipe inner wall of the big lip of the said conduit joint-cutting of this utility model limit one side along axis.
This utility model is provided with a conduit joint-cutting owing to depart from catheter center's axial plane on catheter wall, this conduit joint-cutting is in the natural enclosing state when not drawing back blood and defeated, injection liquid, and conduit cavity forms negative pressure when medical personnel draw back blood, and the big lip of conduit joint-cutting limit concaves; Conduit cavity forms malleation when medical personnel's infusion medicinal liquid, and the big lip of conduit joint-cutting limit is to evagination, and like this, the conduit joint-cutting has the effect of two-way conduit valve, imports and exports as the infusion medicinal liquid, can form effective vent, makes things convenient for the infusion medicinal liquid.Against existing technologies, this utility model is rational in infrastructure, and is easy to use, and infusion medicinal liquid controllability is good, can effectively avoid conduit to stop up.
Description of drawings
Below in conjunction with accompanying drawing this utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is this utility model conduit partial schematic diagram.
Fig. 3 is that the A-A of Fig. 2 is to cutaway view.
Fig. 4 be this utility model conduit when drawing back blood and forming negative pressure joint-cutting A-A to cross section deformation sketch map.
Fig. 5 is that this utility model conduit is defeated, when injection liquid forms malleation joint-cutting A-A to cross section deformation sketch map.
1. airtight needleless infusion medicinal liquid joints among the figure, 2. connecting device, 3. conduit, 4. conduit cavity, the 5. big lip of conduit joint-cutting 6. conduit joint-cuttings limit, 7. conduit joint-cutting microcheilia limit, 8. groove.
The specific embodiment
As can be seen from Figure 1, a kind of peripheral vein is inserted central venous catheter, comprises conduit 3, airtight needleless infusion medicinal liquid joint 1, and inlying catheter 3 is connected with airtight needleless infusion medicinal liquid joint 1 by connecting device 2.Tube material is biocompatible materialses such as silica gel, softness, and good springiness also is marked with scale mark on the conduit.Described airtight needleless infusion medicinal liquid joint 1 is identical with prior art with connecting device 2, repeats no more.
Characteristics of the present utility model are: depart from catheter center's axial plane on conduit 3 walls and be provided with a conduit joint-cutting 5.Said conduit joint-cutting 5 departs from the distance of catheter center's axial plane between the 0.2-0.6 millimeter.The both sides of conduit joint-cutting 5 form conduit joint-cutting big lip limit 6 and conduit joint-cutting microcheilia limit 7.As Fig. 2, shown in Figure 3.Conduit joint-cutting 5 is potential two way valves.This conduit joint-cutting 5 is in the natural enclosing state when not drawing back blood and defeated, injection liquid, stop the blood of human body outflow of driving in the wrong direction.And when medical personnel drew back blood, conduit cavity 4 formed negative pressure, and the big lip of conduit joint-cutting limit 6 is stressed greater than conduit joint-cutting microcheilia limit 7, the big lip of conduit joint-cutting limit 6 concaves, and conduit joint-cutting 5 potential valve slits enlarge, and forms opening, blood just can pass through smoothly, as shown in Figure 4.Conduit cavity forms malleation when medical personnel's infusion medicinal liquid, manifold pressure has surpassed the pressure beyond the predetermined number conduit, the big lip of conduit joint-cutting limit 6 is stressed greater than conduit joint-cutting microcheilia limit 7, the big lip limit of conduit joint-cutting is to evagination, conduit joint-cutting 5 potential valve slits enlarge, form opening, as shown in Figure 5.Medicinal liquid just can be realized therapeutic purposes through opening smoothly.
Also be provided with a groove 8 on the pipe inner wall of the big lip of the said conduit joint-cutting of this utility model limit 6 one sides along axis.Can make the big lip of conduit joint-cutting limit 6 self support force less than conduit joint-cutting microcheilia limit 7 like this, be convenient to its smooth distortion, form opening.
This utility model is provided with a conduit joint-cutting owing to depart from catheter center's axial plane on catheter wall, and it is a potential two way valve, and the conduit joint-cutting has the effect of two-way conduit valve, imports and exports as the infusion medicinal liquid, can form effective vent, makes things convenient for the infusion medicinal liquid.This utility model is rational in infrastructure, and is easy to use, and infusion medicinal liquid controllability is good, can effectively avoid conduit to stop up.
Claims (3)
1. a peripheral vein is inserted central venous catheter, comprises conduit, airtight needleless infusion medicinal liquid joint, and inlying catheter is connected with airtight needleless infusion medicinal liquid joint by connecting device, it is characterized in that departing from the catheter wall catheter center's axial plane and is provided with a conduit joint-cutting.
2. peripheral vein according to claim 1 is inserted central venous catheter, it is characterized in that said conduit joint-cutting departs from the distance of catheter center's axial plane between the 0.2-0.6 millimeter.
3. peripheral vein according to claim 1 is inserted central venous catheter, it is characterized in that also being provided with a groove along axis on the pipe inner wall of the big lip of said conduit joint-cutting limit one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201406700U CN201631868U (en) | 2010-03-25 | 2010-03-25 | Peripherally vein inserted central venous catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201406700U CN201631868U (en) | 2010-03-25 | 2010-03-25 | Peripherally vein inserted central venous catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201631868U true CN201631868U (en) | 2010-11-17 |
Family
ID=43076342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201406700U Expired - Fee Related CN201631868U (en) | 2010-03-25 | 2010-03-25 | Peripherally vein inserted central venous catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201631868U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785897A (en) * | 2010-03-25 | 2010-07-28 | 山东威高集团医用高分子制品股份有限公司 | Peripherally inserted central catheter |
| CN104147682A (en) * | 2014-08-08 | 2014-11-19 | 厦门大学附属中山医院 | Central venous catheter capable of preventing thrombus |
| CN108498934A (en) * | 2018-04-18 | 2018-09-07 | 山东吉威医疗制品有限公司 | Glomus pulmonale ductus bursae |
-
2010
- 2010-03-25 CN CN2010201406700U patent/CN201631868U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101785897A (en) * | 2010-03-25 | 2010-07-28 | 山东威高集团医用高分子制品股份有限公司 | Peripherally inserted central catheter |
| CN104147682A (en) * | 2014-08-08 | 2014-11-19 | 厦门大学附属中山医院 | Central venous catheter capable of preventing thrombus |
| CN108498934A (en) * | 2018-04-18 | 2018-09-07 | 山东吉威医疗制品有限公司 | Glomus pulmonale ductus bursae |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20120325 |