CN209004980U - Through periphery venipuncture central vein catheter - Google Patents
Through periphery venipuncture central vein catheter Download PDFInfo
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- CN209004980U CN209004980U CN201721345754.6U CN201721345754U CN209004980U CN 209004980 U CN209004980 U CN 209004980U CN 201721345754 U CN201721345754 U CN 201721345754U CN 209004980 U CN209004980 U CN 209004980U
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- plug
- fine crack
- merging
- central vein
- vein catheter
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Abstract
The utility model discloses a kind of through periphery venipuncture central vein catheter, merging pipe including being suitable for being placed in human body, it is described merging pipe front end be for by it is described merging pipe port sealing plug, the merging, which is managed, has the first fine crack along axial delineating close to its front end, the distalmost end of the plug is equipped with the second fine crack, and second fine crack passes through the endpoint of the distalmost end of the plug.The beneficial effects of the utility model are mainly reflected in: simple and ingenious structure, guiding function can be played in insertion living tissue by the plug in bullet-shaped setting, with good guiding performance；There is the first fine crack along axial delineating close to merging pipe front end, plug is equipped with the second fine crack, the two be not in closed state by external force always, liquid can neither be conveyed at this time, it can not draw blood, it can prevent backflow of blood from forming thrombus, meanwhile, transfusion speed can greatly be promoted by also forming openings at two.
Description
Technical field
The utility model relates to a kind of medical devices, specifically, more particularly to a kind of through calm in periphery venipuncture
Arteries and veins sets pipe.
Background technique
It is to be punctured using conduit from the vein of periphery arm through periphery venipuncture central vein catheter (PICC),
The through big vein close to heart of conduit, avoids chemotherapeutics from contacting with the direct of arm vein, in addition the Hemodynamic environment of big vein
Degree quickly, can rush rapidly dilute chemotherapeutics, prevent stimulation of the drug to blood vessel, thus can effective protection veins of upper extremity, subtract
The generation of few phlebitis, mitigates the pain of patient, improves the quality of life of patient.It simplify central venous puncture process and
The risk for reducing central venous puncture extends the indwelling time of conduit.The central vein silica gel being placed in through peripheral vein is set
Pipe, is to set pipe by periphery venipuncture, its silica gel pipe end is made to be located at a kind of tube indwelling technology of central vein.Clinically for needing
The patient for wanting long-term intravenous infusion, inputting blood product, the acquisition of blood specimen, measurement of chemotherapy, central venous pressure etc. repeatedly.Usually
It is nutrient solution or medical fluid to be directly delivered to the central vein that blood flow is big, flow velocity is fast in chemicotherapy, thus can avoid to blood
The peripheral vein stimulation that flow is small, flow velocity is slow.
It is traditional through periphery venipuncture central vein catheter, such as United States Patent (USP) US4801297, be in the side of pipeline
One is opened up on face through fine crack, when in pipeline nutrient solution or medical fluid reach the tension giving its pressure and being greater than at fine crack
When, nutrient solution or medical fluid can just be flowed out out of fine crack and the rate of outflow is extremely slow influences normal therapeutic.Currently, being in industry
It will pass through fine crack to be lengthened, to accelerate the output speed of nutrient solution or medical fluid, but due to the lengthening of fine crack, cause be infused
After seamless can not be closed through fine crack, cause blood to will do it in the pipeline of silicone tube, thrombus formed, to the life of people
Safety causes greatly to threaten.
Utility model content
The purpose of the utility model is to overcome the shortcomings of the prior art, provide a kind of through calm in periphery venipuncture
Arteries and veins sets pipe.
The purpose of this utility model is achieved through the following technical solutions:
It is a kind of through periphery venipuncture central vein catheter, the merging pipe including being suitable for being placed in human body, in the merging pipe
Equipped with the fluid channel for trandfer fluid, the front end of the merging pipe is for blocking up the port sealing of the merging pipe
Head, the merging, which is managed, has the first fine crack for not being in closed state always by external force, institute along axial delineating close to its front end
The distalmost end for stating plug is equipped with second fine crack for not being in closed state always by external force, and second fine crack passes through
The endpoint of the distalmost end of the plug.
Preferably, the length of first fine crack and the second fine crack is between 0.5 ~ 3cm.
Preferably, the plug is identical as the merging outer diameter of pipe, and the internal diameter of the plug is greater than or equal to described set
Enter the internal diameter of pipe.
Preferably, the plug is in bullet-shaped, and its side wall is smooth sphere.
Preferably, first fine crack and the plane where the second fine crack are overlapped.
Preferably, the merging pipe and plug are made of silica gel or polyurethane or macromolecular material.
Preferably, the merging pipe and plug form for integrated through injection molding.
The beneficial effects of the utility model are mainly reflected in: simple and ingenious structure, pass through the plug in bullet-shaped setting
Guiding function can be played in insertion living tissue, with good guiding performance；In close merging pipe front end along axial delineating
There is the first fine crack, plug is equipped with the second fine crack, and the two be not in closed state by external force always, at this time can neither be defeated
Liquor charging body can not draw blood, can prevent backflow of blood formed thrombus, meanwhile, also formed openings at two can greatly be promoted it is defeated
Liquid speed degree.
Detailed description of the invention
Technical solutions of the utility model are described further with reference to the accompanying drawing:
Fig. 1: the structural schematic diagram of the utility model；
The enlarged drawing of part A in Fig. 2: Fig. 1.
Specific embodiment
The utility model is described in detail below with reference to specific embodiment shown in the drawings.But these embodiment party
Formula is not limited to the utility model, structure that those skilled in the art are made according to these embodiments, method or
Transformation functionally is all contained in the protection scope of the utility model.
As depicted in figs. 1 and 2, the utility model discloses a kind of through periphery venipuncture central vein catheter, including suitable
In being equipped with the fluid channel 2 for trandfer fluid in the merging pipe 1 of merging human body, the merging pipe 1, before the merging pipe 1
End be equipped with for by it is described merging pipe 1 port sealing plug 3.The plug 3 is identical as the merging outer diameter of pipe 1, institute
State plug 3 internal diameter be greater than or equal to it is described merging pipe 1 internal diameter, with to avoid because junction transition it is unsmooth, cause again
Injure patient.It is, of course, preferable to which embodiment is the merging pipe 1 and plug 3 using silica gel or polyurethane or macromolecular material
Integrated through injection molding forms.
The merging pipe 1 has close to its front end along axial delineating be not in closed state always by external force first thin
Seam 11.The plug 3 is equipped with second fine crack 31 for not being in closed state always by external force, 3 petition of plug
Warhead shape, side wall are smooth sphere 32.Second fine crack 31 passes through the endpoint of the distalmost end of the plug 3.Described first
Plane where fine crack 11 and the second fine crack 31 is overlapped.The length of first fine crack 11 and the second fine crack 31 between 0.5 ~ 5cm,
It is preferred that 0.5 ~ 3cm, the length to avoid first fine crack 11 and the second fine crack 31 is too long and can not accomplish seamless well
It is close to.
When needing to be infused, pressure is applied to the interior medical fluid of the fluid channel 2, medical fluid can be generated to the dynamic of distal end traveling
Power, at this point, there is second fine crack 31 to be located at distalmost end, deformation occurs first and opens, and forms medicine liquid channel.At this point,
During continuous boosting, in order to accelerate the flow velocity of medical fluid, under a certain pressure, first fine crack 11 also can deformation occurs
And open, medical fluid can flow out from two, increase speed.
After infusion, inside deformation pressure of second fine crack 31 by smooth sphere 32 is allowed to restore.By
Be in closed state in first fine crack 11 and the second fine crack 31, and the two length compared with the prior art for contract significantly
It is short, seamless abutting can be formed at this time.
When forming negative pressure in fluid channel 2, first fine crack 11 can deformation occurs first and opens, carefully due to second
The effect of the power of the smooth sphere 32 of seam 31, second fine crack 31 are difficult that deformation occurs and opens.
So the second fine crack 31 is as just the outlet of medical fluid, and the first fine crack 11 can be used as medical fluid in the utility model
Outlet, can also be used as the extraction entrance of blood.
The utility model simple and ingenious structure can be risen in insertion living tissue by the plug in bullet-shaped setting and be drawn
Effect is led, with good guiding performance；There is the first fine crack along axial delineating close to merging pipe front end, plug is equipped with the
Two fine cracks, the two be not in closed state by external force always, can neither convey liquid at this time, can not draw blood, can prevent
Hemostatic Oral Liquid flows backwards to form thrombus, meanwhile, openings can greatly promote transfusion speed at the first fine crack and the second fine crack two.
It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book
With the other embodiments of understanding.
Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model
Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model
Equivalent implementations or change should be included within the scope of protection of this utility model.
Claims (7)
1. the merging pipe (1) including being suitable for being placed in human body, the merging is managed in (1) through periphery venipuncture central vein catheter
Equipped with the fluid channel (2) for trandfer fluid, the front end of the merging pipe (1) is the port for the merging to be managed to (1)
The plug (3) of sealing, it is characterised in that: the merging pipe (1) has not by external force always close to its front end along axial delineating
The first fine crack (11) in closed state, the distalmost end of the plug (3) is not in always equipped with one by external force closes
The second fine crack (31) of conjunction state, second fine crack (31) pass through the endpoint of the distalmost end of the plug (3).
2. according to claim 1 through periphery venipuncture central vein catheter, it is characterised in that: first fine crack
(11) and the length of the second fine crack (31) is between 0.5 ~ 3cm.
3. according to claim 1 through periphery venipuncture central vein catheter, it is characterised in that: the plug (3) with
The outer diameter of the merging pipe (1) is identical, and the internal diameter of the plug (3) is greater than or equal to the internal diameter of the merging pipe (1).
4. according to claim 1 through periphery venipuncture central vein catheter, it is characterised in that: the plug (3) is in
Bullet-shaped, and its side wall is smooth sphere (32).
5. according to claim 1 through periphery venipuncture central vein catheter, it is characterised in that: first fine crack
(11) plane and where the second fine crack (31) is overlapped.
6. according to any one of claims 1 to 5 through periphery venipuncture central vein catheter, it is characterised in that: described to set
Enter pipe (1) and plug (3) to be made of silica gel or polyurethane or macromolecular material.
7. according to claim 6 through periphery venipuncture central vein catheter, it is characterised in that: (1) is managed in the merging
It is formed with plug (3) for integrated through injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345754.6U CN209004980U (en) | 2017-10-19 | 2017-10-19 | Through periphery venipuncture central vein catheter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345754.6U CN209004980U (en) | 2017-10-19 | 2017-10-19 | Through periphery venipuncture central vein catheter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209004980U true CN209004980U (en) | 2019-06-21 |
Family
ID=66827124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721345754.6U Active CN209004980U (en) | 2017-10-19 | 2017-10-19 | Through periphery venipuncture central vein catheter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209004980U (en) |
-
2017
- 2017-10-19 CN CN201721345754.6U patent/CN209004980U/en active Active
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