CN209661741U - Novel remaining needle - Google Patents
Novel remaining needle Download PDFInfo
- Publication number
- CN209661741U CN209661741U CN201821608301.2U CN201821608301U CN209661741U CN 209661741 U CN209661741 U CN 209661741U CN 201821608301 U CN201821608301 U CN 201821608301U CN 209661741 U CN209661741 U CN 209661741U
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- casing
- steel needle
- needle
- seat
- puncture
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Abstract
The utility model discloses novel remaining needles, including steel needle, casing, draw point seat, casing seat, casing one end connector sleeve tube socket, puncture portion is arranged in the other end, steel needle is by insertion casing on the outside of casing seat and passes through the puncture portion on casing, and clearance fit between steel needle and casing, the steel needle is solid steel needle, the front end of steel needle is pointed cutting tip, and the close one end side wall in distance puncture portion is equipped with the through-hole that the gap between steel needle and casing is connected in described sleeve pipe.It being punctured to vein certain depth namely through-hole after intravenously in steel needle and casing, blood via through holes are completed to puncture by the clearance backflow between steel needle and casing, vein is inserted into the secondary propulsion without casing, and it is low to puncture technique requirement, it is worthy to be popularized.
Description
Technical field
The utility model relates to remaining needles, and in particular to a kind of puncture technique requires low novel remaining needle.
Background technique
Existing remaining needle, including steel needle, casing, draw point seat, casing seat, casing one end connector sleeve tube socket, the other end are set
Set puncture portion, steel needle is by insertion casing on the outside of casing seat and passes through the puncture portion on casing, there are gap between steel needle and casing,
Steel needle front end has cutting tip, and puncturing section is sharp formula tubular structure, and recess is arranged in steel needle front end side wall, and recess passes through inside steel needle
Be connected to the pointed puncture section of steel needle front end, when puncture, blood by cutting tip through steel needle inside, then through recess, flow to steel needle with
Gap location between casing realizes reflux；It is because also being needed after reflux that casing is certain to intravenous insertion in above-mentioned remaining needle
Depth, depending on this operation process is because of individual skill degree, technical demand is high, technology it is unqualified or out of order when, often
It is too deep or too short puncture and intubation is caused to fail to there is insertion.
Summary of the invention
In view of the above technical problems, the utility model provides a kind of novel remaining needle, punctures in steel needle and casing to quiet
After arteries and veins certain depth namely through-hole are located at intravenously, blood via through holes are completed to wear by the clearance backflow between steel needle and casing
Vein is inserted into thorn, the secondary propulsion without casing, low to puncture technique requirement, is worthy to be popularized.
In order to solve the above technical problems, the technical solution that the utility model uses is:
Novel remaining needle, including steel needle, casing, draw point seat, casing seat, casing one end connector sleeve tube socket, other end setting
Puncture portion, steel needle is by insertion casing on the outside of casing seat and passes through the puncture portion on casing, clearance fit between steel needle and casing, institute
Stating steel needle is solid steel needle, and the front end of steel needle is pointed cutting tip, in described sleeve pipe on the close one end side wall in distance puncture portion
It is equipped with the through-hole that the gap between steel needle and casing is connected to.
On the basis of the above embodiments, preferably, being additionally provided with recess on steel needle, the diameter of recess and the through-hole
On the same line to axis.
On the basis of the above embodiments, preferably, casing seat outer wall is equipped with axially extending circumferentially-spaced distribution
Two baffles have interval between two plate washers, and the handgrip part in draw point seat is in the interval, the opposite face of two baffles
Between interval be slightly larger than hand-held part thickness.
The beneficial effects of the utility model are: puncturing to vein certain depth namely through-hole in steel needle and casing positioned at quiet
After in arteries and veins, blood via through holes are completed to puncture by the clearance backflow between steel needle and casing, the secondary propulsion without casing is inserted into
Vein, it is low to puncture technique requirement, it is worthy to be popularized.
Consider blood backflow efficiency, therefore design recess on steel needle, and recess is aligned with through-hole, so that blood is direct
The pressure acted on clearance plane increases, and improves back-flow velocity.
By the design of two baffles, the longitudinal axis of guarantee recess and the through-hole on the same line, avoids wearing
The rotation of Ci Shiyin draw point seat, leads to the problem of blood back effect difference.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Below with reference to embodiment, specific embodiment of the present utility model is further described.
As shown in Figure 1, novel remaining needle, including steel needle 1, casing 2, draw point seat 11, casing seat 21, casing one end connector sleeve
Puncture portion is arranged in tube socket, the other end, and steel needle is by insertion casing on the outside of casing seat and passes through the puncture portion 22 on casing, steel needle and set
Clearance fit between pipe, the steel needle are solid steel needle, and the front end of steel needle is pointed cutting tip 12, and distance is worn in described sleeve pipe
The close one end side wall in thorn portion is equipped with the through-hole 23 that the gap between steel needle and casing is connected to.
In the above-described embodiment, after steel needle and casing puncture to vein certain depth namely through-hole and be located at intravenously,
Blood via through holes are completed to puncture by the clearance backflow between steel needle and casing, vein is inserted into the secondary propulsion without casing, right
Puncture technique requirement is low, is worthy to be popularized.
It is additionally provided with recess 13 on steel needle, the longitudinal axis of recess and the through-hole on the same line, considers blood
Flow back efficiency, therefore recess is designed on steel needle, and recess is aligned with through-hole, so that blood directly acts on the pressure on clearance plane
Power increases, and improves back-flow velocity.
Casing seat outer wall is equipped with two baffles 24 of axially extending circumferentially-spaced distribution, between having between two plate washers
Every the hand-held part 14 in draw point seat is located in the interval, and the interval between the opposite face of two baffles is slightly larger than hand-held part
Thickness, because the steel needle being fixedly connected with draw point seat is therefore by the designs of two baffles, to guarantee recess as draw point seat rotates
On the same line with the longitudinal axis of the through-hole, because draw point seat rotates when avoiding puncturing, lead to asking for blood back effect difference
Topic.
For those skilled in the art, technical solution documented by foregoing embodiments can still be repaired
Change or equivalent replacement of some of the technical features, it is within the spirit and principle of the utility model, made any
Modification, equivalent replacement, improvement etc., should be included within the scope of protection of this utility model.
Claims (3)
1. novel remaining needle, including steel needle, casing, draw point seat, casing seat, casing one end connector sleeve tube socket, other end setting are worn
Thorn portion, steel needle is by insertion casing on the outside of casing seat and passes through the puncture portion on casing, and clearance fit between steel needle and casing is special
Sign is that the steel needle is solid steel needle, and the front end of steel needle is pointed cutting tip, distance puncture portion is close in described sleeve pipe one
End side wall is equipped with the through-hole that the gap between steel needle and casing is connected to.
2. novel remaining needle as described in claim 1, which is characterized in that be additionally provided with recess on steel needle, recess and described
The longitudinal axis of through-hole is on the same line.
3. novel remaining needle as claimed in claim 2, which is characterized in that casing seat outer wall is equipped with axially extending circumferentially-spaced
Two baffles of distribution have interval between two plate washers, the handgrip part in draw point seat in the interval, two baffles
Interval between opposite face is slightly larger than the thickness of hand-held part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821608301.2U CN209661741U (en) | 2018-09-30 | 2018-09-30 | Novel remaining needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821608301.2U CN209661741U (en) | 2018-09-30 | 2018-09-30 | Novel remaining needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209661741U true CN209661741U (en) | 2019-11-22 |
Family
ID=68560457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821608301.2U Active CN209661741U (en) | 2018-09-30 | 2018-09-30 | Novel remaining needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209661741U (en) |
-
2018
- 2018-09-30 CN CN201821608301.2U patent/CN209661741U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |