CN206198394U - Anti-blood back remaining needle - Google Patents
Anti-blood back remaining needle Download PDFInfo
- Publication number
- CN206198394U CN206198394U CN201620921486.7U CN201620921486U CN206198394U CN 206198394 U CN206198394 U CN 206198394U CN 201620921486 U CN201620921486 U CN 201620921486U CN 206198394 U CN206198394 U CN 206198394U
- Authority
- CN
- China
- Prior art keywords
- catheter
- catheter block
- sealing
- rotating seal
- plug
- 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
- 239000008280 blood Substances 0.000 title claims abstract description 22
- 238000001802 infusion Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims description 6
- 210000004369 blood Anatomy 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 4
- 239000000284 extract Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000023555 blood coagulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model is related to a kind of anti-blood back remaining needle, it includes inlying catheter, catheter block, sealing-plug, puncture needle, needle handle, infusion connecting tube, install and be connected on catheter block in the inlying catheter rear end, sealing-plug is arranged in catheter block, puncture needle hermetically passes through sealing-plug, through in inlying catheter, one rotating seal is installed in the catheter block lateral port, the rotating seal is cylinder, its inner end is provided with a radial direction through hole, center is provided with the axially extending bore connected with infusion connecting tube, rotating seal is fitted close with catheter block inner chamber, and can be rotated in catheter block inner chamber.Its is rational in infrastructure, easy to use, can effectively close infusion channel, prevents the backflow of blood.
Description
Technical field
The utility model is related to a kind of single use iv cannule, specifically a kind of resistant to blood remaining needle.
Background technology
Iv cannule is a kind of medicine equipment for arteriovenous retention transfusion.Whenever after infusion-completed, remaining needle
Can be retained in patient vessel, give over to the infusion channel of next time.Current remaining needle is very universal in Clinical practice, but when
Often there is remaining needle that blood backflow phenomenon occurs during indwelling, remaining needle plugging is caused after blood clotting, it is impossible to ensure next time
That infuses is normally carried out.
The content of the invention
Technical problem to be solved in the utility model is to overcome existing deficiency, there is provided a kind of rational in infrastructure, is made
With convenient, infusion channel can be effectively closed, it is to avoid the anti-blood back remaining needle of remaining needle blood back during indwelling.
The utility model solves the technical scheme that is used of above-mentioned technical problem：A kind of anti-blood back remaining needle, it includes
There are inlying catheter, catheter block, sealing-plug, puncture needle, needle handle, infusion connecting tube, the inlying catheter rear end is installed to be connected to and led
On base, sealing-plug is arranged in catheter block, and puncture needle hermetically passes through sealing-plug, and through in inlying catheter, its feature exists
In：One rotating seal is installed, the rotating seal is cylinder, and its inner end is provided with a footpath in the catheter block lateral port
To through hole, center is provided with the axially extending bore connected with infusion connecting tube, and rotating seal is fitted close with catheter block inner chamber, and
Can be rotated in catheter block inner chamber.Work as infusion-completed, rotating seal is rotated, in the radial direction through hole and catheter block of rotating seal
Chamber closes, and blocks infusion channel, prevents the blood of indwelling process from flowing back.
The utility model uses above-mentioned composition structure, by rotating rotating seal, realizes conducting and the pass of infusion channel
Close.After liquid of being totally lost, it is only necessary to rotate rotating seal, it is possible to close infusion channel.Against existing technologies, its structure is closed
Reason, it is easy to use, infusion channel can be effectively closed, so as to effectively prevent the backflow of blood, it is to avoid the hair of plugging phenomenon
It is raw, it is a kind of preferable anti-blood back remaining needle.Without blood backflow, there will be no the generation of plugging, it is ensured that next time defeated
Liquid pipeline it is unobstructed.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the utility model composition structural representation.
Fig. 2 is that the utility model puncture needle extracts transfusion conducting state schematic diagram.
Fig. 3 is that the utility model puncture needle extracts transfusion closed mode schematic diagram.
Fig. 4 is the structural representation of rotating seal in the utility model.
Label in figure is：1. needle handle, 2. sealing-plug, 3. rotating seal, 4. infusion connecting tube, 5. catheter block, 6. stays
Conduit is put, 7. puncture needle, 31. axially extending bores, 32. radial direction through hole.
Specific embodiment
From figure 1 it appears that a kind of anti-blood back remaining needle of the utility model, it includes that needle handle 1, sealing-plug 2, rotation are close
Sealing 3, infusion connecting tube 4, catheter block 5, inlying catheter 6, puncture needle 7 etc..Install and be connected to conduit in the rear end of the inlying catheter 6
On seat 5, sealing-plug 2 is arranged in catheter block 5, and needle handle 1 drives puncture needle 7 hermetically to pass through sealing-plug 2, through inlying catheter
In 6, sealing-plug 2 is assemblied in catheter block 5, and can be by the port sealing.Rotatory sealing is installed in the lateral port of the catheter block 5
Part 3.
Figure 4, it is seen that the rotating seal 3 is cylinder, rotating seal 3 is tight with the inner chamber of catheter block 5
Coordinate, and can be rotated in the inner chamber of catheter block 5.It is mutually closely sealed in use not leak.The inner end of rotating seal 3 is provided with
One radial direction through hole 32, the inner chamber of the connecting tube of radial direction through hole 32 seat 5, and connect inlying catheter 6.The center of rotating seal 3 sets
There is the axially extending bore 31 connected with infusion connecting tube.The one end of axially extending bore 31 is connected with infusion connecting tube 4, the other end with rotation
One radial direction through hole 32 of seal 3 is turned on, and when rotating seal 3 is on position, the rotating seal radial direction through hole 32 can
With inlying catheter 6 catheter block 5 inner chamber mutual conduction.When rotating seal 3 is in the closed position, rotating seal 3
Radial direction through hole 32 is mutually closed with the inwall of catheter block 5.
Fig. 2 is that the utility model puncture needle extracts transfusion conducting state schematic diagram.The liquid being now transfused is by the company of transfusion
Adapter 4 forms transfusion logical into intravasation after inlying catheter 6 is flowed through behind the inner chamber for entering catheter block 5 after rotating seal 3
Road.
Fig. 3 is that the utility model puncture needle extracts transfusion closed mode schematic diagram.Work as infusion-completed, rotate rotatory sealing
Part, radial direction through hole and the catheter block inner chamber of rotating seal close, and block infusion channel, prevent the blood of indwelling process from flowing back.
Now the inner chamber of catheter block 5 is blocked by rotating seal 3, and inlying catheter 6 is separated with the inner chamber of rotating seal 3, and blood is not
Can be back in infusion connecting tube 4, effectively prevent blood to flow back, it is therefore prevented that due to plugging phenomenon caused by blood backflow
Occur.
The utility model uses above-mentioned composition structure, by rotating rotating seal, realizes conducting and the pass of infusion channel
Close.After liquid of being totally lost, it is only necessary to rotate rotating seal, it is possible to close infusion channel.Its is rational in infrastructure, easy to use, can
Infusion channel is effectively closed, so as to effectively prevent the backflow of blood, it is to avoid the generation of plugging phenomenon, be it is a kind of preferably
Anti-blood back remaining needle.Without blood backflow, there will be no the generation of plugging, it is ensured that infusion pipeline is unobstructed next time.
Claims (1)
1. a kind of anti-blood back remaining needle, it includes inlying catheter, catheter block, sealing-plug, puncture needle, needle handle, infusion connecting tube,
The inlying catheter rear end is installed and is connected on catheter block, and sealing-plug is arranged in catheter block, and puncture needle is hermetically through sealing
Plug, through in inlying catheter, it is characterised in that：One rotating seal, the rotation are installed in the catheter block lateral port
Seal is cylinder, and its inner end is provided with a radial direction through hole, and center is provided with the axially extending bore connected with infusion connecting tube, rotates close
Sealing is fitted close with catheter block inner chamber, and can be rotated in catheter block inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620921486.7U CN206198394U (en) | 2016-08-23 | 2016-08-23 | Anti-blood back remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620921486.7U CN206198394U (en) | 2016-08-23 | 2016-08-23 | Anti-blood back remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206198394U true CN206198394U (en) | 2017-05-31 |
Family
ID=58760344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620921486.7U Active CN206198394U (en) | 2016-08-23 | 2016-08-23 | Anti-blood back remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206198394U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939206A (en) * | 2018-08-06 | 2018-12-07 | 江苏省人民医院（南京医科大学第附属医院） | Easily fixed aseptic anti-reflux remaining needle |
-
2016
- 2016-08-23 CN CN201620921486.7U patent/CN206198394U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108939206A (en) * | 2018-08-06 | 2018-12-07 | 江苏省人民医院（南京医科大学第附属医院） | Easily fixed aseptic anti-reflux remaining needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |