CN205145283U - Prevent withdraw of needle formula vein and keep somewhere needle - Google Patents
Prevent withdraw of needle formula vein and keep somewhere needle Download PDFInfo
- Publication number
- CN205145283U CN205145283U CN201520960393.0U CN201520960393U CN205145283U CN 205145283 U CN205145283 U CN 205145283U CN 201520960393 U CN201520960393 U CN 201520960393U CN 205145283 U CN205145283 U CN 205145283U
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- needle
- puncture
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- needle handle
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Abstract
The utility model provides a prevent withdraw of needle formula vein and keep somewhere needle, including puncture assembly and pjncture needle, the puncture assembly, including the base, the base front end has the flexible sleeve pipe, the base side has the infusion tube socket, be provided with the needle handle behind the pjncture needle, characterized by: be provided with the lug outside the base, be provided with stop device on the needle handle, can be retrained by stop device after the lug is rotatory. The utility model has the advantages of the utility model discloses in use, needle handle be at rotatory in -process, under lug on it gets into the recess or bead on the needle handle, has kept the relative position of flexible sleeve pipe and pjncture needle, makes the hose cover can not produce prorsad sliding, even slight the sliding of production before the puncture is also corrected, has remained the state that exposes of needle point throughout to going on smoothly of puncture task has been guaranteed.
Description
Technical field
This utility model relates to a kind of remaining needle used of infusing.
Background technology
Venous transfusion is a kind of modal medical treatment means, and its ultimate principle is the vein blood vessel by infusion pipeline, hollow needle, liquid being inputted human body.When starting transfusion, hollow needle needs to puncture into vein blood vessel.
Because infusion process will be repeatedly, all need repeated puncture process at every turn, in order to the working strength of the misery and medical personnel that reduce patient, just there is remaining needle technology: use soft tube, drawing out type draw point is had in soft tube, first during puncture vessel, draw point is used to complete puncture task, and bring soft tube into blood vessel simultaneously, draw point is extracted out and abandons (hole after extraction relies on the elasticity of elastomeric material to be sealed), liquid enters human vein blood vessel by soft tube, and when liquid brings to a temporary a paragraph by transfusion, soft tube is retained in Ink vessel transfusing.Next time, transfusion, directly can connect the pipeline of soft tube, continued transfusion.
In above-mentioned containing needle structure, the front position of soft tube, lower than head (point) portion of draw point, could complete the task that punctures first so smoothly.
But according to the rule of operation of medical personnel, needle handle (be convenient to puncture, extraction exerts a force and arranges) and pedestal to be mediated and carry out puncture operation more together afterwards, so have a process in relative rotation between needle body and pedestal (containing Hose Jacket), this rotation process often produces the sliding motion of an axis, last result is exactly, soft tube moves up, and the distance between needle point reduces, concordant with needle point even.
Change trickle like this, is not easy to be found, and once puncture, not only can not punctures into blood vessel smoothly, also can have great damaging action to blood vessel.
Utility model content
The purpose of this utility model is to provide a kind of anti-withdrawing venous detaining needle to make up the deficiencies in the prior art,
This utility model is the technical scheme adopted that achieves the goal: anti-withdrawing venous detaining needle, comprises puncture assembly and puncture needle;
Puncture assembly, comprise pedestal, there is soft tube pedestal front end; Needle handle is provided with after puncture needle;
It is characterized in that:
Be outside equipped with projection at pedestal, needle handle is provided with stopping means, can limited device constraint after projection rotates.
Optimize: stopping means is groove.
Optimize: groove is skewed slot.
Optimize: stopping means is fin.
Optimize: fin is slant edge.
the beneficial effects of the utility model are: this utility model is in use, needle handle is in rotary course, under projection on pedestal enters groove on needle handle or fin, maintain the relative position of soft tube and puncture needle, make Hose Jacket can not produce slippage forward, even if the trickle slippage produced before puncture, also corrected, remain the coverage of sleeve pipe head end and needle point, thus ensure that carrying out smoothly of puncture task.
Accompanying drawing explanation
Fig. 1 is product structure schematic diagram in the past.
Fig. 2 is the pedestal schematic diagram of this utility model embodiment.
Fig. 3 is the needle handle schematic diagram of this utility model embodiment 1.。
Fig. 4 is the side view of Fig. 3.
Fig. 5 is pedestal and the needle handle cooperation schematic diagram of this utility model embodiment 1.
The needle handle schematic diagram of Fig. 6 this utility model embodiment 2.
Fig. 7 is the side view of Fig. 6.
Fig. 8 is pedestal and the needle handle cooperation schematic diagram of this utility model embodiment 2.
Detailed description of the invention
In the drawings, 1 is puncture needle, and 2 is pedestal, and 3 is soft tube, and 4 is plug; 5 is transfusion base, and 6 is needle handle, and 7 is projection, and 8 is groove, and 9 is fin.
Embodiment 1:
Before use, pedestal 2 and needle handle 6 engage with hands by nurse, pedestal 2 and needle handle 6 relatively rotate, in rotation process, the projection 7 on pedestal 2 enters in groove 8, and groove 8 just defines the axial displacement of pedestal 2, soft tube 3, maintain the relative position of soft tube 3 and puncture needle 1, make pedestal 2, Hose Jacket 3 can not produce slippage forward, what remained needle point exposes state, thus ensure that carrying out smoothly of puncture task.
After puncture, by normal flow operations down-stream.
Groove 8 is set to skewed slot, is to enter groove 8 smoothly in order to what allow projection 7, and along with rotation process, pedestal 2, Hose Jacket 3 have a thrust backward, to guarantee there are enough distances between soft tube 3 front end and needle point further.
Embodiment 2:
Arrange fin 9 by needle handle 6, during use, pedestal 2 and needle handle 6 relatively rotate, and the upper surface of projection 7 is retrained by the lower surface of fin 9, can play spacing effect equally.Based on aforesaid reason, fin 9 also can be set to slant edge.
Claims (5)
1. anti-withdrawing venous detaining needle, comprises puncture assembly and puncture needle;
Puncture assembly, comprise pedestal, there is soft tube pedestal front end; Needle handle is provided with after puncture needle;
It is characterized in that:
Be outside equipped with projection at pedestal, needle handle is provided with stopping means, can limited device constraint after projection rotates.
2. anti-withdrawing venous detaining needle according to claim 1, is characterized in that: stopping means is groove.
3. anti-withdrawing venous detaining needle according to claim 2, is characterized in that: groove is skewed slot.
4. anti-withdrawing venous detaining needle according to claim 1, is characterized in that: stopping means is fin.
5. anti-withdrawing venous detaining needle according to claim 4, is characterized in that: fin is slant edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520960393.0U CN205145283U (en) | 2015-11-27 | 2015-11-27 | Prevent withdraw of needle formula vein and keep somewhere needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520960393.0U CN205145283U (en) | 2015-11-27 | 2015-11-27 | Prevent withdraw of needle formula vein and keep somewhere needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205145283U true CN205145283U (en) | 2016-04-13 |
Family
ID=55681029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520960393.0U Active CN205145283U (en) | 2015-11-27 | 2015-11-27 | Prevent withdraw of needle formula vein and keep somewhere needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205145283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039468A (en) * | 2016-07-30 | 2016-10-26 | 新乡医学院第附属医院 | Intravascular indwelling catheter |
-
2015
- 2015-11-27 CN CN201520960393.0U patent/CN205145283U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039468A (en) * | 2016-07-30 | 2016-10-26 | 新乡医学院第附属医院 | Intravascular indwelling catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |