CN207041707U - A kind of syringe - Google Patents
A kind of syringe Download PDFInfo
- Publication number
- CN207041707U CN207041707U CN201721165703.5U CN201721165703U CN207041707U CN 207041707 U CN207041707 U CN 207041707U CN 201721165703 U CN201721165703 U CN 201721165703U CN 207041707 U CN207041707 U CN 207041707U
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- CN
- China
- Prior art keywords
- piston
- syringe
- handle
- hole
- bellmouth
- 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 syringe, is related to medical treatment and nursing apparatus field, including syringe needle, needle tubing and piston apparatus；The piston apparatus includes piston handle, upper piston and lower piston, and the piston handle includes the handle of upper end and the support disk of lower end, and the upper piston is arranged on the disk；The lower piston is cylinder, and its outside sets sealing ring, and through hole is set among the cylinder, the through hole includes the circular hole of upper end and the bellmouth of lower end, Open Side Down for the bellmouth, and groove is set at its cone point, the ball made of water swelling rubber is set in groove.The utility model is coordinated using double-piston absorbs rubber, gas is separated with liquid, has reached easy to operate, safe and efficient effect.
Description
Technical field
Medical treatment and nursing apparatus field is the utility model is related to, more particularly, to a kind of syringe.
Background technology
Syringe is a kind of common medical instruments, by the foraminate syringe of front end band and matching piston core pin
Composition, syringe be used for by a small amount of liquid or its be injected into region that other methods can not approach or taken out from those places
Go out, liquid or gas suck from syringe front end aperture when core bar is extracted, when core bar is pushed into by liquid or gas
Extrusion, extracted with syringe and syringe needle and either inject this process of gas or liquid and be called injection, mainly injecting
Decoction or drawing liquid.At present, the syringe of in the market, it includes syringe, syringe piston, syringe needle and needle cover.This syringe
Although make it is simple, it is easy to use, it is net, it is necessary to pushing syringe piston in order to which the gas in syringe is drained when in use,
, could be by remaining injecting liquid drug to human body or animal after decoction projects from syringe needle, this process can cause the decoction projected
Waste, medicine is more valuable, and loss is more.
China Patent Publication No. CN204050536U discloses a kind of syringe, including syringe, syringe piston, syringe needle and
Needle cover, the needle cover include liquid collector, and the liquid collector is provided with through hole, and through hole one end is stifled to be provided with rubber stopper, the through hole
The other end be provided with aqueous vapor seperation film, form liquid collecting cavity between aqueous vapor seperation film and rubber stopper.During using the syringe, by syringe needle
In the medicine bottle of injection needed for insertion, syringe piston is pulled, decoction can be pumped in needle tubing, then pull out syringe needle from medicine bottle
Go out, be now inserted into syringe needle in liquid collecting cavity from the rubber stopper end of liquid collector, pushing syringe piston, the air in syringe needle and
Decoction enters liquid collecting cavity, continues to press on syringe piston, and the air in liquid collecting cavity can pass through aqueous vapor seperation film and be discharged from outlet chamber,
Syringe piston is pulled after it can not promote piston, liquid collecting cavity inner liquid medicine is pumped into needle tubing, pulled out after decoction is drained again
Go out syringe, now just only decoction in syringe and syringe needle, in the absence of gas, can directly be injected.In existing syringe
On the basis of, it is improved, introduces limit purchase plug and steam barrier film, solve the problems, such as air in syringe be present.
But there are still have open defect in existing syringe, on the one hand, due to the characteristic of aqueous vapor seperation film, is pressurized
During may cause portion gas enter solution in, cause gas separation it is not thorough；On the other hand, because operating personnel exert oneself
Bad control, cause injection progradation medium velocity irregular, injection speed inequality, cause the uncomfortable aggravation of injection process.
Utility model content
In view of this, the purpose of this utility model is in view of the shortcomings of the prior art, there is provided a kind of syringe, using dual-active
Plug, which coordinates, absorbs rubber, gas is separated with liquid, has reached easy to operate, safe and efficient effect.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of syringe, including syringe needle, needle tubing and piston apparatus；The piston apparatus include piston handle, upper piston and under
Piston, the piston handle include the handle of upper end and the support disk of lower end, and the upper piston is arranged on the disk；It is described
Lower piston is cylinder, and its outside sets sealing ring, sets through hole among the cylinder, the through hole includes the circular hole of upper end
With the bellmouth of lower end, Open Side Down for the bellmouth, and groove is set at its cone point, is set in groove by water swelling rubber
Ball made of glue.
As further improvement of the utility model, check valve is set in the circular hole.
As further improvement of the utility model, the needle tubing lower end sets choke valve.
As further improvement of the utility model, the upper piston and the lower piston set bracing wire.
As further improvement of the utility model, the sealing ring is multiple.
The beneficial effects of the utility model are：
The utility model includes syringe needle, needle tubing and piston apparatus；The piston apparatus includes piston handle, upper piston and lower work
Plug, the lower piston is cylinder, and its outside sets sealing ring, and through hole is set among the cylinder, and the through hole includes upper
The circular hole at end and the bellmouth of lower end, Open Side Down for the bellmouth, and groove is set at its cone point, is set in groove by inhaling
Ball made of water-expansible rubber.Because atmospheric density is small, syringe is in water absorption course, and air is always topmost, and lead to
Bellmouth collection is crossed, after its all enters upper chamber by through hole, starts to contact ball containing water liquid, utilizes ball water-swellable
Characteristic, ensure the separating effect of aqueous vapor.
Check valve is set in the circular hole, and check valve can only be such that a fluid passes through from a direction；Treat gas from unidirectional
Press upper piston after valve enters upper chamber, during injection, closed check valve, prevented gas and entered decoction to be injected, initiation need not
Want medical care problem.
The needle tubing lower end sets choke valve, and choke valve can be avoided due to operating personnel by controlling the flow velocity of decoction
Firmly inequality, cause injection speed uneven, cause the uncomfortable aggravation in injection process.
The upper piston and the lower piston set bracing wire, and the purpose of bracing wire is to make the direction of motion of upper piston and lower piston
Unanimously, prevent that the accident that upset causes syringe to fail in needle tubing occurs lower piston due to unbalance stress.
Brief description of the drawings
Fig. 1 is the main structure diagram of embodiment one of the present utility model.
Fig. 2 is the main structure diagram of the lower piston of embodiment one of the present utility model.
Fig. 3 is the main structure diagram of the lower piston of embodiment two of the present utility model.
In figure：1- needle tubings, 2- lower pistons, 2.1- bellmouths, 2.2- circular holes, 2.2- depressions, 2.4- check valves, 3- bracing wires,
4- upper pistons, 5- handles, 6- piston handles, 7- support disks, 8- balls, 9- sealing rings, 10- choke valves, 11- syringe needles.
Embodiment
The utility model is further described with reference to the accompanying drawings and examples.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of syringe, including syringe needle 11, needle tubing 1 and piston apparatus；The piston apparatus includes living
Handle 6, upper piston 4 and lower piston 2 are filled in, the piston handle 6 includes the handle 5 of upper end and the support disk 7 of lower end, the upper piston
4 are arranged on the support disk 7；The lower piston 2 is cylinder, and its outside sets sealing ring 9, and the sealing ring 9 is more
It is individual.Through hole is set among the cylinder of lower piston 2, the through hole includes the circular hole 2.2 of upper end and the bellmouth 2.1 of lower end,
Open Side Down for the bellmouth 2.1, and groove 2.2 is set at its cone point, sets in groove 2.2 and is made up of water swelling rubber
Ball 8.
Water swelling rubber is succeeded in developing the 1980s as a kind of new watertight rubber material and launches city
The great advantage of field water swelling rubbers is exactly to have excellent sealing leak stopping function.Once being contacted with water, rubber volume is rapid
Increase.So as to fill all spaces in gap, play sealing and plugging.Water swelling rubber can commensurate structure deformation, rise
Elastic packing acts on, and has water swelling again, with the special efficacy of water sealing.Its operation principle is, when malformation exceedes
During the elastic recovery capability of material, volume may expand 1 times or several times after water swelling rubber meets water, so as to block the water of seepage,
Reach the purpose of waterproof.Especially in terms of stoppage engineering, effect protrudes.
In actual mechanical process, because atmospheric density is small, syringe in water absorption course, air always topmost, and
Upper chamber is entered by the collection of bellmouth 2.1, space of the upper chamber between upper piston 4 and lower piston 2, treats that its whole passes through
After through hole enters upper chamber, start to contact ball 8 containing water liquid, using the characteristic of the water-swellable of ball 8, the separation for reaching aqueous vapor is imitated
Fruit.
The lower end of needle tubing 1 sets choke valve 10, and choke valve 10 is to control by changing throttling section or chock length
The valve of fluid flow.Choke valve can avoid the firmly inequality due to operating personnel, cause to note by controlling the flow velocity of decoction
Firing rate degree is uneven, causes the uncomfortable aggravation in injection process.
The upper piston 4 and the lower piston 2 set bracing wire 3, and the purpose of bracing wire 3 is to make the fortune of upper piston 4 and lower piston 2
Dynamic direction is consistent, prevents that the accident that upset causes syringe to fail in needle tubing 1 occurs lower piston 2 due to unbalance stress.
Embodiment 2
The present embodiment is similar to the general structure of embodiment 1, and its difference is：As shown in figure 3, set in the circular hole 2.2
Check valve 2.4, check valve 2.4 can only be such that a fluid passes through from a direction；After gas from after check valve 2.4 enters upper chamber,
Upper piston 4 is pressed during injection, check valve 2.4 is closed, prevented gas and entered decoction to be injected, the unnecessary medical treatment of initiation is asked
Topic.
Finally illustrate, above example only to illustrate the technical solution of the utility model and unrestricted, this area
Other modifications or equivalent substitution that those of ordinary skill is made to the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme, it all should cover among right of the present utility model.
Claims (5)
1. a kind of syringe, including syringe needle, needle tubing and piston apparatus；It is characterized in that：The piston apparatus include piston handle, on
Piston and lower piston, the piston handle include the handle of upper end and the support disk of lower end, and the upper piston is arranged on the circle
On piece；The lower piston is cylinder, and its outside sets sealing ring, sets through hole among the cylinder, the through hole includes
The circular hole of upper end and the bellmouth of lower end, Open Side Down for the bellmouth, and groove is set at its cone point, set in groove by
Ball made of water swelling rubber.
A kind of 2. syringe according to claim 1, it is characterised in that：Check valve is set in the circular hole.
A kind of 3. syringe according to claim 1, it is characterised in that：The needle tubing lower end sets choke valve.
A kind of 4. syringe according to claim 1, it is characterised in that：The upper piston and the lower piston, which are set, to be drawn
Line.
A kind of 5. syringe according to claim 1, it is characterised in that：The sealing ring is multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721165703.5U CN207041707U (en) | 2017-09-12 | 2017-09-12 | A kind of syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721165703.5U CN207041707U (en) | 2017-09-12 | 2017-09-12 | A kind of syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207041707U true CN207041707U (en) | 2018-02-27 |
Family
ID=61503552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721165703.5U Expired - Fee Related CN207041707U (en) | 2017-09-12 | 2017-09-12 | A kind of syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207041707U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108888835A (en) * | 2018-09-17 | 2018-11-27 | 上海市东方医院 | Safety injector |
| CN109498458A (en) * | 2018-11-30 | 2019-03-22 | 南京医科大学附属逸夫医院 | A kind of novel infant medicine-feeding device |
| CN110448766A (en) * | 2019-08-30 | 2019-11-15 | 深圳安特医疗股份有限公司 | Syringe |
| CN110448765A (en) * | 2019-08-30 | 2019-11-15 | 深圳安特医疗股份有限公司 | Piston component and syringe |
-
2017
- 2017-09-12 CN CN201721165703.5U patent/CN207041707U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108888835A (en) * | 2018-09-17 | 2018-11-27 | 上海市东方医院 | Safety injector |
| CN109498458A (en) * | 2018-11-30 | 2019-03-22 | 南京医科大学附属逸夫医院 | A kind of novel infant medicine-feeding device |
| CN109498458B (en) * | 2018-11-30 | 2024-03-26 | 南京市浦口医院 | Novel medicine feeder for infants |
| CN110448766A (en) * | 2019-08-30 | 2019-11-15 | 深圳安特医疗股份有限公司 | Syringe |
| CN110448765A (en) * | 2019-08-30 | 2019-11-15 | 深圳安特医疗股份有限公司 | Piston component and syringe |
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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: 20180227 Termination date: 20180912 |