CN206239736U - A kind of needle for dispensing medicine with long and narrow side opening - Google Patents
A kind of needle for dispensing medicine with long and narrow side opening Download PDFInfo
- Publication number
- CN206239736U CN206239736U CN201620447869.5U CN201620447869U CN206239736U CN 206239736 U CN206239736 U CN 206239736U CN 201620447869 U CN201620447869 U CN 201620447869U CN 206239736 U CN206239736 U CN 206239736U
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- side opening
- needle
- needle tubing
- long
- dispensing medicine
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Abstract
The utility model discloses a kind of needle for dispensing medicine with long and narrow side opening, including needle tubing and needle stand, the needle point of the needle tubing is the cone tip of closing, a long and narrow side opening is provided with the tube wall of needle tubing, the side opening is arranged along the axial direction of needle tubing, the front port of side opening opens the connection transition position to needle point circular conical surface and the needle tubing face of cylinder, and the proportionate relationship of side opening length L1 and needle tubing diameter D is：The proportionate relationship of L1=3D~6D, side opening width D 1 and needle tubing diameter D is：D1=0.3D~0.5D.Because the front port position of side opening is reasonable, it is easy to liquid suction when using totally, and rubber particle will not be cut.Because the length of side opening is enough and narrower width, when cillin bottle is aspirated, operator need not be aspirated while outwards extracting syringe needle out, and inspiratory phenomenon is less likely to occur during suction, high efficiency can be maintained to aspirate, glass chip will not be pumped into during suction ampoule bottle, it is more safe and reliable.
Description
Technical field
The utility model is related to a kind of needle for dispensing medicine, specifically a kind of needle for dispensing medicine with long and narrow side opening to belong to medical treatment
Technique with the apparatus field.
Background technology
The syringe needle of dispensing needle be generally divided into bevel needle and side-hole needle first two, the dispensing needle of bevel needle is in insertion XiLin
Easily rubber particle is cut and brought into needle tubing liquid during bottle plug, will easily be produced during corkage when ampoule bottle is aspirated being stretched into
Glass chip particulate be pumped into needle tubing liquid in, during intravenous injection, these particulates can by syringe needle enter blood circulation formed blood
Bolt, causes serious consequence, therefore in recent years, dispensing needle is more side-hole pinhead using obtaining.However, side-hole pinhead on the market
Because the shape of its side opening is unreasonable, in actual use, there is following a few point defects：
1st, the position that side opening is opened up is unreasonable, mainly side opening from needle point too away from, cause aspirate ampoule bottle liquid medicine when not
Easily suction is clean.
2nd, the length of side opening is too short, aspirate cillin bottle when, with the reduction of liquid, operator need aspirate while
Outwards extract syringe needle out, be adapted with the liquid level in the side opening and bottle that maintain syringe needle, this undoubtedly increased the use difficulty of operator,
Also it is not easy to operation.
3rd, the width of side opening is too wide, in order to solve above-mentioned 2nd point defect, also there is the dispensing needle of part side opening long on the market
Head, but the side opening width design of such syringe needle obtains too wide, and side opening width long is excessive, and part side opening exposes in atmosphere during suction,
Inspiratory phenomenon is susceptible to, pumping efficiency is influenceed, the easy suction part cullet when ampoule bottle is aspirated, cause the accident in addition.
Utility model content
The purpose of this utility model is to provide a kind of needle for dispensing medicine, and it has a long and narrow side opening, and side opening front end
Mouth is close to needle point, by the change in side opening position and structure, while solving above-mentioned existing for conventional side opening needle for dispensing medicine
Multiple defects.
The concrete technical scheme that the utility model is used is as follows：
A kind of needle for dispensing medicine with long and narrow side opening, including needle tubing and needle stand, it is characterized in that：The needle point of the needle tubing is envelope
The cone tip closed, is provided with a long and narrow side opening on the tube wall of needle tubing, the side opening is arranged along the axial direction of needle tubing, side opening
Front port opens the connection transition position to needle point circular conical surface and the needle tubing face of cylinder, the proportionate relationship of side opening length L1 and needle tubing diameter D
For：The proportionate relationship of L1=3D~6D, side opening width D 1 and needle tubing diameter D is：D1=0.3D~0.5D.
Preferably, the needle tubing diameter D is 1.4mm, and side opening length L1 is 7mm, and side opening width D 1 is 0.55mm.
Preferably, the needle tubing diameter D is 1.6mm, and side opening length L1 is 8mm, and side opening width D 1 is 0.65mm.
Preferably, the rear and front end mouthful of the side opening is ellipse arc port or circular arc port or flush end mouthful.
The advantage of needle for dispensing medicine of the present utility model is as follows：
1st, because the front port of side opening opens the connection transition position to needle point circular conical surface and the needle tubing face of cylinder, in suction ampoule bottle
During liquid, the front port of side opening is sufficiently low, it is easy to which liquid suction is clean, and side opening does not reach the circular conical surface of needle point
On, rubber particle will not be cut when syringe needle inserts XiLin bottle plug.
2nd, because the length of side opening is enough and narrower width, when cillin bottle is aspirated, the rear port position of side opening can just
In the bottom of liquid level, operator need not be aspirated while outwards extract syringe needle out, simplify operating process, reduce work strong
Degree.
3rd, due to the narrower width of side opening, inspiratory phenomenon is less likely to occur during suction, high efficiency can be maintained to aspirate, and suction
Glass chip will not be pumped into during ampoule bottle, it is more safe and reliable.
Brief description of the drawings
Fig. 1 is the structural representation of conventional structure side opening needle for dispensing medicine.
Fig. 2 is the structural representation of the utility model needle for dispensing medicine.
In figure：1- needle points, 2- needle tubings, 3- needle stands, 4- side openings, D- needle tubing diameters, L1- side opening length, D1- side opening width.
Specific embodiment
The utility model is described further with reference to specific embodiment.
As shown in figure 1, the position that opens up of its side opening is unreasonable, mainly side opening is from pin for the side opening needle for dispensing medicine of conventional structure
Point is too remote, and the length of side opening is too short, and width is too wide, influences operating characteristics and security performance.
Needle for dispensing medicine of the present utility model is as shown in Fig. 2 originally include needle tubing 2 and needle stand 3, the needle point 1 of the needle tubing 2 is envelope
The cone tip closed, is provided with a long and narrow side opening 4 on the tube wall of needle tubing 2, the side opening 4 is arranged along the axial direction of needle tubing 2, side
The front port in hole 4 opens the connection transition position to the circular conical surface of needle point 1 and the face of cylinder of needle tubing 2, the ratio of side opening length L1 and needle tubing diameter D
Example relation be：The proportionate relationship of L1=3D~6D, side opening width D 1 and needle tubing diameter D is：D1=0.3D~0.5D.Side opening it is front and rear
Two-port is ellipse arc port or circular arc port or flush end mouthful.
When the needle tubing diameter D of needle for dispensing medicine is 1.4mm, side opening length L1 is 7mm, and side opening width D 1 makes for 0.55mm's
Use best results.When the needle tubing diameter D of needle for dispensing medicine is 1.6mm, side opening length is 8mm, and side opening width D 1 is 0.65mm's
Using effect is optimal.
Above-mentioned legend is only exemplary embodiments of the present utility model, is not limited to the utility model, all in this practicality
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (4)
1. a kind of needle for dispensing medicine with long and narrow side opening, including needle tubing and needle stand, it is characterized in that：The needle point of the needle tubing is closing
Cone tip, be provided with a long and narrow side opening on the tube wall of needle tubing, the side opening is arranged along the axial direction of needle tubing, before side opening
The connection transition position to needle point circular conical surface and the needle tubing face of cylinder is opened in port, and the proportionate relationship of side opening length L1 and needle tubing diameter D is：
The proportionate relationship of L1=3D~6D, side opening width D 1 and needle tubing diameter D is：D1=0.3D~0.5D.
2. needle for dispensing medicine according to claim 1, it is characterized in that：The needle tubing diameter D is 1.4mm, and side opening length L1 is
7mm, side opening width D 1 is 0.55mm.
3. needle for dispensing medicine according to claim 1, it is characterized in that：The needle tubing diameter D is 1.6mm, and side opening length L1 is
8mm, side opening width D 1 is 0.65mm.
4. needle for dispensing medicine according to claim 1, it is characterized in that：The rear and front end mouthful of the side opening is ellipse arc port
Or circular arc port or flush end mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620447869.5U CN206239736U (en) | 2016-05-17 | 2016-05-17 | A kind of needle for dispensing medicine with long and narrow side opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620447869.5U CN206239736U (en) | 2016-05-17 | 2016-05-17 | A kind of needle for dispensing medicine with long and narrow side opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206239736U true CN206239736U (en) | 2017-06-13 |
Family
ID=58997563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620447869.5U Active CN206239736U (en) | 2016-05-17 | 2016-05-17 | A kind of needle for dispensing medicine with long and narrow side opening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206239736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112618361A (en) * | 2020-12-08 | 2021-04-09 | 河南曙光汇知康生物科技股份有限公司 | Universal dispensing needle and universal dispensing needle head |
-
2016
- 2016-05-17 CN CN201620447869.5U patent/CN206239736U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112618361A (en) * | 2020-12-08 | 2021-04-09 | 河南曙光汇知康生物科技股份有限公司 | Universal dispensing needle and universal dispensing needle head |
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