CN2930735Y - Self-destroyed safety syringe - Google Patents
Self-destroyed safety syringe Download PDFInfo
- Publication number
- CN2930735Y CN2930735Y CN 200520143392 CN200520143392U CN2930735Y CN 2930735 Y CN2930735 Y CN 2930735Y CN 200520143392 CN200520143392 CN 200520143392 CN 200520143392 U CN200520143392 U CN 200520143392U CN 2930735 Y CN2930735 Y CN 2930735Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- needle
- self
- destructing safety
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a self-destroying safe injector consisting of a needle tube, a needle base, a barb, a syringe, a piston and a pushing rod. After the injection of the self-destroying safe injector, a back tapered elastic clamping sheet of the barb penetrates the weak area of the piston to clamp the lower step of the back tapered elastic clamping sheet inside the inner clasp hole at the upper part of the pushing rod, thereby reducing the upper step width of the back tapered elastic clamping sheet. The pushing rod is pulled back to pull the needle tube and the barb into the syringe and the needle tube is inclined in the syringe. The self-destroying safe injector can protect the needle point after used. Even if the pushing rod is pushed back, the needle tube will not be exposed out of the syringe as the tube is inclined, thereby avoiding accidental injury to medical workers by the needle point. The utility model has simple structure, convenient production and manufacture and suitability for large scale production.
Description
Technical field
This utility model relates to a kind of destructing safety syringe, belongs to medicine and hygiene fields.
Background technology
For fear of the cross infection that causes virus in injection process, disposable syringe is extensive use of by medical field.But after use, the syringe needle that is exposing can often be stabbed medical worker and discarded syringe processor, just might cause of the cross infection of patient's virus, especially those are used for the syringe that serious epidemic victim uses, have great medical hidden danger the user of service.
Summary of the invention
The utility model proposes a kind of structure of the destructing safety syringe that after use, has Tip protection newly.
The purpose of this utility model reaches by implementing following technical scheme: a kind of destructing safety syringe, form by needle tubing, needle stand, agnail body, syringe, piston, push rod.The needle tubing bottom is fixed on the agnail body, and communicates with the endoporus of agnail body; Needle tubing passes needle stand, and the cylinder on agnail body top and needle stand endoporus interference fit make it sealing; Needle stand is engaged on the conehead of syringe front end; Conehead endoporus bottom is provided with the top shoulder, and top shoulder internal diameter is less than conehead endoporus internal diameter; Push rod top has interior snap ring hole, pierces into piston, and closely cooperates with plug;
Above-mentioned agnail body top is cylinder, and is connected with needle tubing.The bottom is two back taper elastic cards, and two relative steps are respectively arranged on the back taper elastic card, the width of width greater than the top shoulder of conehead endoporus bottom of topping bar.The plane of getting out of a predicament or an embarrassing situation of two back taper elastic cards tilts or two shoulder height differences in the same way, and one high, and another is low.
The top shoulder of above-mentioned conehead endoporus bottom is one-body molded with syringe.
This utility model adopts above technical scheme, and the destructing safety syringe is when puncture, and topping bar on the back taper elastic card sticks the top shoulder of conehead endoporus, thereby the interior snap ring hole on push rod top makes needle tubing can not slip into syringe.After injection finished, the back taper elastic card of agnail body punctured the weak area that passes piston, and getting out of a predicament or an embarrassing situation on the back taper elastic card is stuck in the interior snap ring hole on push rod top.Thereby the width of topping bar on the back taper elastic card is diminished, the push rod of pulling back, needle tubing and agnail body can be drawn in syringe, after drawing in syringe, because the plane of getting out of a predicament or an embarrassing situation of two back taper elastic cards tilts in the same way, or two shoulder height differences, one high, and another is low, thereby needle tubing pin in syringe is tilted.
The destructing safety syringe is protected needle point after use, even push back push rod, needle tubing can not expose outside the syringe owing to tilt.Thereby can avoid the medical worker by the unexpected injury of needle point; This utility model is simple in structure, and it is convenient to manufacture, and is convenient to large-scale production.
Description of drawings
Structural representation before the destructing safety syringe that Fig. 1 provides for this utility model does not use.
After the destructing safety syringe that Fig. 2 provides for this utility model used, needle point was drawn into the sketch map in the syringe barrel.
The piston structure sketch map of the destructing safety syringe that Fig. 3 provides for this utility model.
The push rod front portion structure sketch map of the destructing safety syringe that Fig. 4 provides for this utility model.
The agnail body structure sketch map of the destructing safety syringe that Fig. 5 provides for this utility model.
The specific embodiment
As shown in Figure 1, 2, the destructing safety syringe that this utility model provides is made up of needle tubing 1, needle stand 2, agnail body 3, syringe 4, piston 5, push rod 6.Needle tubing 1 is fixed on the agnail body 3.The top interference fit of agnail body 3 is on needle stand 2.Agnail body 3 bottoms are two elastic cards 31, and elastic card 31 is provided with tops bar 33 and get out of a predicament or an embarrassing situation 32.32 planes tilt in the same way (or two shoulder height differences, one high another is low) of getting out of a predicament or an embarrassing situation.Syringe 4 front ends are provided with dogging shoulder 42, and the rear portion is provided with bulge loop 41 one, is the inverted triangle shape.Piston 5 is assemblied in push rod 6 heads.Piston 5 front ends are provided with weak area 51.Card bulge loop 61 in push rod 6 heads are provided with.
Above-mentioned syringe 4, dogging shoulder 42 and bulge loop 41 are one-body molded.
Above-mentioned agnail body 3, two elastic cards 31, top bar 33 and get out of a predicament or an embarrassing situation 32 one-body molded.
Operation principle of the present utility model is as follows:
When clinical use, extract medicinal liquid routinely and inject, because topping bar on the elastic card 31 of agnail body 3 33 is stuck on the dogging shoulder 42 of syringe 4 front ends, can prevent to contract in the needle tubing 1.After injection was finished, the elastic card 31 of agnail body 3 punctured and passes the weak area 51 of piston 5, and making gets out of a predicament or an embarrassing situation 32 is stuck in the interior card bulge loop 61 on push rod 6 tops, thereby 33 width of topping bar on the elastic card 31 are diminished.The push rod 6 of pulling back is drawn in needle tubing 1 and agnail body 3 in the syringe 4.Because 32 planes of getting out of a predicament or an embarrassing situation of two back taper elastic cards 31 tilt in the same way, or two shoulder height differences, one high, and another is low, thereby agnail body 3 and needle tubing 1 pin in syringe 4 is tilted, even push back push rod 6, needle tubing 1 can not expose outside the syringe owing to tilt; Because syringe 4 rear portions are provided with and are inverted triangle shape bulge loop 41 together, even pull back push rod 6, push rod 6 is stuck on the bulge loop 41 and can't pulls out again.Thereby can avoid the medical worker by the unexpected injury of needle point.
Claims (4)
1, a kind of destructing safety syringe, form by needle tubing, needle stand, agnail body, syringe, piston, push rod, it is characterized in that described destructing safety injector syringe front end is provided with dogging shoulder, the rear portion is provided with bulge loop one, top land is provided with weak area, and agnail body bottom is provided with two elastic cards.
2, a kind of destructing safety syringe according to claim 1 is characterized in that the bulge loop that is provided with in described destructing safety injector syringe rear portion is a del.
3, a kind of destructing safety syringe according to claim 1 is characterized in that on two elastic cards that agnail body bottom is provided with two steps being arranged respectively, and the plane of getting out of a predicament or an embarrassing situation tilts or two shoulder height differences in the same way, and one high, and another is low.
4, a kind of destructing safety syringe according to claim 1, it is characterized in that the push rod head be provided with in the card bulge loop, and link to each other with weak area that top land is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143392 CN2930735Y (en) | 2005-12-14 | 2005-12-14 | Self-destroyed safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143392 CN2930735Y (en) | 2005-12-14 | 2005-12-14 | Self-destroyed safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2930735Y true CN2930735Y (en) | 2007-08-08 |
Family
ID=38347237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143392 Expired - Fee Related CN2930735Y (en) | 2005-12-14 | 2005-12-14 | Self-destroyed safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2930735Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824673A (en) * | 2012-09-04 | 2012-12-19 | 广东顺德全能医事工业有限公司 | Pullback type self-destruction injecting device |
| CN103157159A (en) * | 2011-12-19 | 2013-06-19 | 陈道申 | Safe needle head |
| CN109187090A (en) * | 2018-08-24 | 2019-01-11 | 广州万孚生物技术股份有限公司 | Automatic puncturing sampling apparatus and the system for applying it |
-
2005
- 2005-12-14 CN CN 200520143392 patent/CN2930735Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103157159A (en) * | 2011-12-19 | 2013-06-19 | 陈道申 | Safe needle head |
| CN102824673A (en) * | 2012-09-04 | 2012-12-19 | 广东顺德全能医事工业有限公司 | Pullback type self-destruction injecting device |
| CN109187090A (en) * | 2018-08-24 | 2019-01-11 | 广州万孚生物技术股份有限公司 | Automatic puncturing sampling apparatus and the system for applying it |
| CN109187090B (en) * | 2018-08-24 | 2024-05-31 | 广州万孚生物技术股份有限公司 | Automatic puncture sampling device and system using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |