CN208574087U - A kind of secondary filter remaining needle - Google Patents
A kind of secondary filter remaining needle Download PDFInfo
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- CN208574087U CN208574087U CN201720947102.3U CN201720947102U CN208574087U CN 208574087 U CN208574087 U CN 208574087U CN 201720947102 U CN201720947102 U CN 201720947102U CN 208574087 U CN208574087 U CN 208574087U
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- needle
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- filter
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- blood back
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Abstract
The utility model discloses a kind of secondary filter remaining needles, including positive pressure infusion connector, positive pressure infusion connector bottom end is connected by conduit with needle stand, the conduit is equipped with clip, the top of the needle stand is equipped with Needlestick prevention device, the Needlestick prevention device is equipped with puncture needle, and the Needlestick prevention device top is connected with blood back flowing device, and the top and bottom end of the puncture needle extend through the cavity of cavity and needle stand in blood back flowing device.The utility model can facilitate medical staff to observe vein blood back in time the utility model has the advantages that passing through blood back flowing device, help accurately to improve puncture success rate.
Description
Technical field
The utility model relates to medical instruments, it particularly relates to a kind of secondary filter remaining needle.
Background technique
Because the inlying catheter softness of remaining needle can be arbitrarily bent with the activity of patient, material biocompatibility used is excellent
Can extended stationary periods in vivo, so pain caused by can be reduced patient due to venipuncture repeatedly and because patient activity causes to rouse
Needle and to the fear having an injection, clinical dosing at any time of being more convenient for mitigates the workload of nurse, reduces patient pain, at present market
On remaining needle it is varied, have common, have positive pressure, there is counterflow-preventing, have safe, but medical staff is wearing
When thorn, since the pressure in needle cavity is unchanged, there are problems that being not readily observed blood back, especially long-term anaemia and low albumen
Mass formed by blood stasis leads to the patient of edema, due to circulating blood volume deficiency, fills the blood vessel of patient not, causes to be not easy when disposing remaining needle
It observes blood back, influences puncture success rate.
For the problems in the relevant technologies, currently no effective solution has been proposed.
Utility model content
For above-mentioned technical problem in the related technology, the utility model proposes a kind of secondary filter remaining needles, facilitate doctor
Shield personnel observe vein blood back in time, help accurately to improve puncture success rate.
To realize the above-mentioned technical purpose, the technical solution of the utility model is achieved in that a kind of secondary filter indwelling
Needle, including positive pressure infusion connector, positive pressure infusion connector bottom end are connected by conduit with needle stand, and the conduit is equipped with folder
Son, the top of the needle stand are equipped with Needlestick prevention device, and the Needlestick prevention device is equipped with puncture needle, the Needlestick prevention device top
It is connected with blood back flowing device, the top and bottom end of the puncture needle extend through the cavity of cavity and needle stand in blood back flowing device.
Further, filter is equipped between the positive pressure infusion connector and needle stand, the filter is located at the upper of clip
Side, the filter includes shell, and the interior of shell is equipped with several layers filter membrane.
Further, the material of the filter membrane is poly (ether sulfone) film.
Further, the aperture of the filter membrane is 0.03um-10um.
The utility model has the beneficial effects that medical staff can be facilitated to observe vein blood back in time by blood back flowing device, have
Help accurately improve puncture success rate.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of structural schematic diagram of secondary filter remaining needle according to the utility model embodiment；
Fig. 2 is the front view of the filter according to the utility model embodiment；
Fig. 3 is the side view of the filter according to the utility model embodiment.
In figure:
1, positive pressure infusion connector；2, filter；3, clip；4, puncture needle；5, blood back flowing device；6, Needlestick prevention device；7, it leads
Pipe；8, needle stand；9, shell；10, filter membrane.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
As shown in Figure 1-3, a kind of secondary filter remaining needle according to the utility model embodiment, including positive pressure infuser
Connector 1,1 bottom end of positive pressure infusion connector are connected by conduit 7 with needle stand 8, and the conduit 7 is equipped with clip 3, the needle
The top of seat 8 is equipped with Needlestick prevention device 6, and the Needlestick prevention device 6 is equipped with puncture needle 4,6 top of the Needlestick prevention device connection
There is blood back flowing device 5, the top and bottom end of the puncture needle 4 extend through the cavity of cavity and needle stand 8 in blood back flowing device 5.
In a specific embodiment of the utility model, filter is equipped between the positive pressure infusion connector 1 and needle stand 8
2, the filter 2 is located at the top of clip 3, and the filter 2 includes shell 9, is equipped with several layers inside the shell 9 and filters
Film 10 realizes multilayer stereo structure by filter membrane 10, precisely filters rubber particle, glass fibre and insoluble drug particle
Enter human vas Deng with medical fluid, observe infusion last line of defense, ensure that patient's is healthy and safe.
In a specific embodiment of the utility model, the material of the filter membrane 10 is poly (ether sulfone) film, using this material
Material, can not only guarantee filter efficiency, and possess ultra high rate and superpower pollutant carrying capacity.
In a specific embodiment of the utility model, the aperture of the filter membrane 10 is 0.03um, 2 um, 2.5
Um, 3 um and 10um, this aperture will not change during filtration, and multilayer stereo filter type is greatly improving particle
Interception capacity does not have any membrane body while reducing Drug absorbability rate and falls off, and effectively prevent clinical vein inflammation, blood vessel electrochromic variable
Firmly, the adverse reactions such as localized plug and scleroma sufficiently ensure clinical transfusion safety.
In order to facilitate the above-mentioned technical proposal for understanding the utility model, below by way of practical new to this in specifically used mode
The above-mentioned technical proposal of type is described in detail.
When specifically used, according to a kind of secondary filter remaining needle described in the utility model, before puncture, clip 3 is opened,
So that medical fluid is flowed into the cavity of needle stand, the gas in cavity is ejected, when puncturing, after puncture needle 4 is pierced into blood vessel, due to blood
Pressure in pipe is greater than the pressure of blood back flowing device 5, and blood is quickly back to by blood along the cavity and Needlestick prevention device 6 of needle stand
In blood back flowing device 5, medical staff observes blood back by blood back flowing device 5, observes blood back then by puncture needle 4, Needlestick prevention device 6
Needle stand 8 is detached with blood back flowing device 5.
In conclusion medical staff can be facilitated by blood back flowing device 5 by means of the above-mentioned technical proposal of the utility model
Observation vein blood back in time, helps accurately to improve puncture success rate, realizes multilayer stereo structure by filter 2, precisely
Filtering rubber particle, glass fibre and insoluble drug particle etc. enter human vas with medical fluid, and it is last anti-together to observe infusion
Line ensure that patient's is healthy and safe.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of secondary filter remaining needle, including positive pressure infusion connector (1), positive pressure infusion connector (1) bottom end passes through conduit
(7) it is connected with needle stand (8), the conduit (7) is equipped with clip (3), which is characterized in that the top of the needle stand (8) is equipped with
Needlestick prevention device (6), the Needlestick prevention device (6) are equipped with puncture needle (4), and Needlestick prevention device (6) top is connected with back
Blood device (5), the top and bottom end of the puncture needle (4) extend through the sky of cavity and needle stand (8) in blood back flowing device (5)
Chamber.
2. secondary filter remaining needle according to claim 1, which is characterized in that the positive pressure infusion connector (1) and needle stand
(8) filter (2) are equipped between, the filter (2) is located at the top of clip (3), and the filter (2) includes shell (9),
Several layers filter membrane (10) are equipped with inside the shell (9).
3. secondary filter remaining needle according to claim 2, which is characterized in that the material of the filter membrane (10) is polyethers
Sulfone film.
4. secondary filter remaining needle according to claim 2 or 3, which is characterized in that the aperture of the filter membrane (10) is
0.03um-10um。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947102.3U CN208574087U (en) | 2017-08-01 | 2017-08-01 | A kind of secondary filter remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720947102.3U CN208574087U (en) | 2017-08-01 | 2017-08-01 | A kind of secondary filter remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208574087U true CN208574087U (en) | 2019-03-05 |
Family
ID=65498379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720947102.3U Active CN208574087U (en) | 2017-08-01 | 2017-08-01 | A kind of secondary filter remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208574087U (en) |
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2017
- 2017-08-01 CN CN201720947102.3U patent/CN208574087U/en active Active
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