CN208017875U - A kind of disposable syringe - Google Patents
A kind of disposable syringe Download PDFInfo
- Publication number
- CN208017875U CN208017875U CN201720619647.1U CN201720619647U CN208017875U CN 208017875 U CN208017875 U CN 208017875U CN 201720619647 U CN201720619647 U CN 201720619647U CN 208017875 U CN208017875 U CN 208017875U
- Authority
- CN
- China
- Prior art keywords
- needle
- syringe
- injection
- piston head
- shrapnel
- 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 discloses a kind of disposable syringes, including injection needle, syringe needle and piston rod, the syringe needle includes shank and the pintle for being fixed on shank end, the syringe needle is socketed on by pintle on injection needle, the inner wall bottom of the injection needle is provided at least one shrapnel needle, the piston rod includes the body of rod and is fixed on the piston head of rod end, and the bottom of the piston head is provided with an air bag with piston head with diameter, and the utility model advantageous effect is：In injection process, it can will remain on the drug in syringe needle shank and pintle and carry out injection utilization completely, avoid the waste of drug.
Description
Technical field
The utility model is related to intravenous injector technical fields, and in particular to a kind of disposable syringe.
Background technology
When we are in use syringe, pull piston rod sucking liquid medicine is typically first passed through, needle is now placed in
Air in head can enter inside needle tubing, at this time when being injected intravenously, to prevent air from entering blood vessel, and often medical care people
Member needs syringe being inverted, and gently pushes piston rod, until syringe needle liquid discharge, can be just injected intravenously at this time,
But after being injected intravenously, often the meeting residual fraction liquid in syringe needle, cannot be injected into people by piston rod compressing completely
Body, final syringe are dropped, and on the one hand can cause the waste of liquid, and the drug on the other hand remained in syringe needle also can be to ring
Border pollutes.
Utility model content
（One）Technical problems to be solved
In order to overcome the shortage of prior art, it is proposed that a kind of disposable syringe can incite somebody to action in injection process
The drug remained in syringe needle shank and pintle carries out injection utilization completely, avoids the waste of drug.
（Two）Technical solution
The utility model is achieved through the following technical solutions：The utility model proposes a kind of disposable syringe,
Including injection needle, syringe needle and piston rod, the syringe needle includes shank and the pintle for being fixed on shank end, the syringe needle
It is socketed on injection needle by pintle, the inner wall bottom of the injection needle is provided at least one shrapnel needle, the piston
Bar includes the body of rod and is fixed on the piston head of rod end, and it is big with diameter with piston head that the bottom of the piston head is provided with one
Small air bag.
Further, the shrapnel needle is to include using two syringe needles V-shaped made of spring steel, one of syringe needle
It is fixedly installed on injection needle interior.
Further, the piston head and air bag can overlay shrapnel needle on injection needle inner wall.
Further, full of physiological saline and the physiological saline volume in air bag and the volume phase in syringe needle in the air bag
Together.
（Three）Advantageous effect
The utility model compared with the existing technology, has the advantages that：
A kind of disposable syringe that the utility model is mentioned, when carrying out injecting liquid drug, when piston head promotes
When to injection needle bottom, shrapnel needle can puncture air bag, and the physiological saline in air bag continues to squeeze out, just can be by position
It is injected again in the drug in shank and pintle and enters human vas, avoid the waste of liquid.
Description of the drawings
Fig. 1 is that the utility model extracts liquid pre-structure schematic diagram.
Fig. 2 is structural schematic diagram when the utility model extracts liquid.
1- injection needles；2- syringe needles；3- piston rods；4- shrapnel needles；21- shanks；22- pintles；The 31- bodies of rod；32- pistons
Head；33- air bags.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
A kind of disposable syringe as depicted in figs. 1 and 2, including injection needle 1, syringe needle 2 and piston rod 3,
The syringe needle 2 includes that shank 21 and the pintle 22 for being fixed on 21 end of shank, the syringe needle 2 are socketed on injection by pintle 22
On needle tubing 1, the inner wall bottom of the injection needle 1 is provided at least one shrapnel needle 4, the piston rod 31 include the body of rod 3 with
And it is fixed on the piston head 32 of 31 end of the body of rod, the bottom of the piston head 32 is provided with one with piston head 32 with diameter
Air bag 33.
Wherein, the shrapnel needle 4 is to include using V-shaped two syringe needles made of spring steel, and one of syringe needle is solid
Surely it is set to 1 interior of injection needle；The piston head 32 and air bag 33 can overlay shrapnel needle 4 in injection needle 1
On inner wall；It is identical as the volume in syringe needle 2 full of the physiological saline volume in physiological saline and air bag in the air bag 33.
A kind of disposable syringe that the utility model is mentioned, when specifically used, syringe is being drawn first
Before liquid, remains in 3 lowermost end air bag 33 of piston rod and contacted with 1 bottom of injection needle, at this time piston head 32 and air bag 33
4 deformation of compressing shrapnel needle simultaneously makes shrapnel needle 4 tightly fit in the inner wall of injection needle 1, and shrapnel needle 4 is in spring energy storage at this time
State, syringe needle 2 are socketed on 1 end nozzle of injection needle by pintle 22, shank 21 are inserted into the liquid, and pull is located at piston rod
The body of rod 1 of 3 ends, 1 inside of injection needle forms negative pressure, and liquid is sucked from shank 21 inside injection needle 1, with work
The movement backward of stopper rod 3, air bag 33 and piston head 32 are detached from shrapnel needle 4, the release of 4 elastic potential energy of shrapnel needle, and shrapnel needle 4 is in
It is skewed, when being injected, injection needle 1 is inverted first, syringe needle 2 upward, gently pushes piston rod 3, Zhi Daozhen
At first 2 be discharged liquid, this step be in order to empty the air in injection needle 1, then by shank 21 be inserted into human vas in into
Row vein is injected, and piston rod 3 is promoted towards 1 bottom of injection needle, and drug enters blood vessel by slowly injection, when air bag 33 is touched
To after shrapnel needle 4, air bag 33 will be punctured, and the physiological saline in air bag 33 is discharged, which can be straight
Connect liquid of the impact in shank 21 and pintle 22 so that the part residual liquor as much as possible can be again injected
Into human vas, the waste of drug is avoided.
It is worth mentioning, piston head 32 is formed using rubber is made, when piston rod 3 is advanced into 1 bottom of injection needle, bullet
Piece needle 4 punctures air bag, and the final meeting of shrapnel needle 4 intercalation enters in piston head 32.
Embodiment described above is only that preferred embodiments of the present invention are described, not to this practicality
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, all record in detail in the claims.
Claims (4)
1. a kind of disposable syringe, including injection needle（1）, syringe needle（2）And piston rod（3）, it is characterised in that：Institute
State syringe needle（2）Including shank（21）And it is fixed on shank（21）The pintle of end（22）, the syringe needle（2）Pass through pintle（22）
It is socketed on injection needle（1）On, the injection needle（1）Inner wall bottom be provided at least one shrapnel needle（4）, the piston
Bar（3）Including the body of rod（31）And it is fixed on the body of rod（31）The piston head of end（32）, the piston head（32）Bottom setting
There are one and piston head（32）With the air bag of diameter（33）.
2. a kind of disposable syringe according to claim 1, it is characterised in that：The shrapnel needle（4）It is to include
Using two syringe needles V-shaped made of spring steel, one of syringe needle is fixedly installed on injection needle（1）Interior.
3. a kind of disposable syringe according to claim 1, it is characterised in that：The piston head（32）And gas
Capsule（33）It can be by shrapnel needle（4）It overlays in injection needle（1）On inner wall.
4. a kind of disposable syringe according to claim 1, it is characterised in that：The air bag（33）It is interior to be full of life
Reason brine and the physiological saline volume in air bag and syringe needle（2）Interior volume is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720619647.1U CN208017875U (en) | 2017-05-31 | 2017-05-31 | A kind of disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720619647.1U CN208017875U (en) | 2017-05-31 | 2017-05-31 | A kind of disposable syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208017875U true CN208017875U (en) | 2018-10-30 |
Family
ID=63897591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720619647.1U Expired - Fee Related CN208017875U (en) | 2017-05-31 | 2017-05-31 | A kind of disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208017875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731183A (en) * | 2019-03-22 | 2019-05-10 | 上海市东方医院（同济大学附属东方医院） | Thrombolytic drug injector |
-
2017
- 2017-05-31 CN CN201720619647.1U patent/CN208017875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109731183A (en) * | 2019-03-22 | 2019-05-10 | 上海市东方医院（同济大学附属东方医院） | Thrombolytic drug injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 Termination date: 20190531 |