CN203196082U - Disposable syringe - Google Patents
Disposable syringe Download PDFInfo
- Publication number
- CN203196082U CN203196082U CN 201220626981 CN201220626981U CN203196082U CN 203196082 U CN203196082 U CN 203196082U CN 201220626981 CN201220626981 CN 201220626981 CN 201220626981 U CN201220626981 U CN 201220626981U CN 203196082 U CN203196082 U CN 203196082U
- Authority
- CN
- China
- Prior art keywords
- syringe
- rotation
- conehead
- rule
- push rod
- 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.)
- Expired - Fee Related
Links
- 241001149930 Protura <class> Species 0.000 claims description 41
- 210000002435 tendon Anatomy 0.000 claims description 14
- 210000002421 cell wall Anatomy 0.000 claims description 8
- 230000008685 targeting Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a disposable syringe including a syringe cylinder, a push rod arranged in the syringe cylinder, a fixed-stroke piston arranged in the syringe cylinder, a Luer cone arranged at the front end of the push rod, and a syringe needle inserted into the Luer cone. The front end of the Luer cone is provided with a frustum for the syringe needle to insert therein, and the tail end of the Luer cone is provided with an elastic position-specified block. The syringe is characterized in that a circular slot is arranged on the periphery of the frustum of the Luer cone, the outer slot wall of the circular slot is cooperated with the inner wall of the syringe cylinder, a plurality of rotation-proofing slots are axially distributed on the outer slot wall, and rotation-proofing convex ribs cooperated with the rotation-proofing slots are arranged on the inner wall of the syringe cylinder. Through the clamping cooperation of the rotation-proofing slots and the rotation-proofing convex ribs, the disposable syringe provided can realize circumferential position specification and prevent the Luer cone from deviation and the syringe needle from rotation, thereby improving the use safety.
Description
Technical field
This utility model relates to a kind of medical supplies, is specifically related to a kind of disposable syringe.
Background technology
Growing along with medical industry, hygienic requirements to medical apparatus and instruments is also more and more higher, syringe has accounted for a very big part in medical apparatus and instruments, for avoiding to the input of the mankind or animal or cross infection taking place when taking out medium, disposable syringe already is extensive use of at modern medicine as the medical apparatus and instruments of routine, namely handles as hospital refuse after using.
At present, disposable syringe commonly used mainly by hollow barrel, be installed in push rod in the hollow barrel, the syringe needle of deciding the journey piston and being positioned at the push rod front end that is fitted in the syringe forms, syringe needle is installed on the syringe front end by Rule conehead, the bottom of Rule conehead is arranged with two elasticity activity screens pieces, the syringe inwall at corresponding each elasticity activity screens piece place is provided with stopper slot, the top of elasticity activity screens piece, Rule conehead perimeter wall is provided with sealing ring, keep sealing with the syringe inwall, prevent leakage.During assembling, by thrust Rule conehead is pushed to the syringe front end, in elasticity activity screens piece snapped in stopper slot on the syringe inwall, the expression assembling put in place, push rod is pushed in the syringe again.In use, syringe needle is inserted on the conehead of Rule, after push rod is intact with media injections, the umbrella shape step of push rod front end is pushed in the conehead of Rule and passes the back clamping, when push rod retracts again, just can be with Rule conehead and syringe needle to withdraw in the lump in the syringe, can not reuse.
As mentioned above, between Rule conehead and the syringe by the cooperate clamping of elasticity activity screens piece with stopper slot, form axial spacing, and it is not upwards spacing in week, be that Rule conehead upwards is free state in week, after being subjected to side force, easily be offset, and the umbrella shape step of push rod front end is when passing Rule conehead clamping, when the axial force on putting on conehead meets obstructions, easily produce side force, this has made chance just for Rule conehead circumferential offset, and conehead skew in Rule represents that namely syringe needle is offset, and must bring sense of discomfort to the patient.
Summary of the invention
This utility model purpose provides a kind of disposable syringe, by the improvement of structure, reduces the subject discomfort sense, improves stability, safety that injection is used.
For achieving the above object, the technical solution adopted in the utility model is: a kind of disposable syringe, comprise syringe, be installed in the push rod in the syringe, be fitted in and decide the journey piston in the syringe, be positioned at Rule conehead of push rod front end and be plugged in syringe needle on the conehead of Rule, described Rule conehead front end is the frustum with the syringe needle plug-in mounting, tail end is provided with the elasticity screens piece that cooperates with the clamping of syringe inwall, the frustum periphery of described Rule conehead is annular slot, the outer rim cell wall of annular slot cooperates with described syringe inwall, be evenly equipped with a plurality of anti-rotation grooves of axial setting on the described outer rim cell wall, described syringe inwall is provided with the anti-rotation convex tendon that cooperates with described anti-rotation groove.
Further technical scheme is, the front end of each described anti-rotation groove is provided with the inverted cone targeting port, and the tail end of corresponding each described anti-rotation convex tendon is provided with the guiding tip.By taper targeting port and guiding the cooperating of tip, make pushing of Rule conehead more smooth, avoid stuck.
In the technique scheme, Luer taper is held end to end and is provided with elasticity screens piece, this elasticity screens piece cooperates with the clamping of syringe inwall, form axial limiting, prevent that Rule conehead is offset in the axial direction, in this utility model, be evenly equipped with axial arranged a plurality of anti-rotation grooves on the described outer rim cell wall, this anti-rotation groove cooperates with anti-rotation convex tendon clamping on the syringe inwall, form circumferentially spacing, so, when the axial force on putting on conehead meets obstructions (when push rod pushes), the side force that produces can cooperate to limit with clamping between the anti-rotation convex tendon by anti-rotation groove, avoids taking place Rule conehead shift phenomenon.
Because technique scheme is used, the advantage that this utility model compared with prior art has is:
1, because this utility model is evenly equipped with a plurality of anti-rotation grooves of axial setting at the outer rim cell wall of Rule conehead, by cooperating with anti-rotation convex tendon clamping on the syringe inwall, thereby form the circumferentially spacing of Rule conehead, with the structure of axial limiting only arranged in the past compared, make Rule conehead that circumferential offset, rotation not take place when pushing, avoid the patient to produce sense of discomfort, improved safety in utilization;
2, the anti-rotation groove front end arranges the inverted cone targeting port, and anti-rotation convex tendon tail end is provided with the guiding tip on the corresponding syringe, and both cooperate the guiding when forming anti-rotation groove and the grafting of anti-rotation convex tendon, is easier to the grafting of Rule conehead, avoids stuck;
3, this utility model is simple in structure, is easy to realize.
Description of drawings
Fig. 1 is the structural representation of this utility model embodiment one;
Fig. 2 is the structural representation of Rule conehead among this utility model embodiment one;
Fig. 3 is the perspective view of Fig. 2;
Fig. 4 is the structural representation of syringe among this utility model embodiment one.
Wherein: 1, syringe; 2, push rod; 3, decide the journey piston; 4, Rule conehead; 5, syringe needle; 6, frustum; 7, elasticity screens piece; 8, annular slot; 9, anti-rotation groove; 10, inverted cone targeting port; 11, anti-rotation convex tendon; 12, guiding tip.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment one: shown in Fig. 1～4, a kind of disposable syringe, comprise syringe 1, be installed in the push rod 2 in the syringe 1, be fitted in and decide journey piston 3 in the syringe 1, be positioned at Rule conehead 4 of push rod 2 front ends and be plugged in syringe needle 5 on Rule conehead 4, described Rule conehead 4 front ends are the frustum 6 with syringe needle 5 plug-in mountings, tail end is provided with the elasticity screens piece 7 that cooperates with syringe 1 inwall clamping, described Rule conehead 4 frustums 6 peripheries are annular slot 8, the outer rim cell wall of annular slot 8 cooperates with described syringe 1 inwall, be evenly equipped with 16 anti-rotation grooves 9 of axial setting on the described outer rim cell wall, described syringe 1 inwall is provided with the anti-rotation convex tendon 11 that cooperates with described anti-rotation groove 9.
Shown in Fig. 2,3, the front end of each described anti-rotation groove 9 is provided with inverted cone targeting port 10, and the tail end of corresponding each described anti-rotation convex tendon 11 is provided with guiding tip 12.By inverted cone targeting port 10 and guiding the cooperating of tip 12, make pushing of Rule conehead 4 more smooth, avoid stuck.
During assembling, when Rule conehead 4 pushed in the syringe 1, the anti-rotation convex tendon 11 on syringe 1 inwall cooperated with anti-rotation groove 9 clampings on Rule conehead 4, form circumferentially spacing, when Rule conehead 4 was shifted the end onto, the elasticity screens piece 7 of its tail end cooperated with syringe 1 inwall clamping, formed axial limiting.In use, after push rod 2 is intact with media injections, the umbrella shape step of push rod 2 front ends is pushed in Rule conehead 4, and be connected on the frustum 6 after passing frustum 6, in this process, by cooperating of anti-rotation groove 9 and anti-rotation convex tendon 11, prevent that Rule conehead 4 under the effect of side force shift phenomenon taking place, namely avoid the rotation of syringe needle 5, improved safety in utilization.
Claims (2)
1. disposable syringe, comprise syringe, be installed in the push rod in the syringe, be fitted in and decide the journey piston in the syringe, be positioned at Rule conehead of push rod front end and be plugged in syringe needle on the conehead of Rule, described Rule conehead front end is the frustum with the syringe needle plug-in mounting, tail end is provided with the elasticity screens piece that cooperates with the clamping of syringe inwall, it is characterized in that: the frustum periphery of described Rule conehead is annular slot, the outer rim cell wall of annular slot cooperates with described syringe inwall, be evenly equipped with a plurality of anti-rotation grooves of axial setting on the described outer rim cell wall, described syringe inwall is provided with the anti-rotation convex tendon that cooperates with described anti-rotation groove.
2. disposable syringe according to claim 1, it is characterized in that: the front end of each described anti-rotation groove is provided with the inverted cone targeting port, and the tail end of corresponding each described anti-rotation convex tendon is provided with the guiding tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626981 CN203196082U (en) | 2012-11-25 | 2012-11-25 | Disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626981 CN203196082U (en) | 2012-11-25 | 2012-11-25 | Disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203196082U true CN203196082U (en) | 2013-09-18 |
Family
ID=49140226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220626981 Expired - Fee Related CN203196082U (en) | 2012-11-25 | 2012-11-25 | Disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203196082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109331296A (en) * | 2018-11-27 | 2019-02-15 | 甘肃成纪生物药业有限公司 | An injection needle and automatic injection device |
| CN111093740A (en) * | 2017-09-14 | 2020-05-01 | 贝克顿迪金森法国公司 | Safety assembly |
-
2012
- 2012-11-25 CN CN 201220626981 patent/CN203196082U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111093740A (en) * | 2017-09-14 | 2020-05-01 | 贝克顿迪金森法国公司 | Safety assembly |
| US11413400B2 (en) | 2017-09-14 | 2022-08-16 | Becton Dickinson France | Safety assembly |
| CN115227914A (en) * | 2017-09-14 | 2022-10-25 | 贝克顿迪金森法国公司 | Safety assembly |
| CN109331296A (en) * | 2018-11-27 | 2019-02-15 | 甘肃成纪生物药业有限公司 | An injection needle and automatic injection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20131125 |