CN207886484U - A kind of syringe - Google Patents
A kind of syringe Download PDFInfo
- Publication number
- CN207886484U CN207886484U CN201721196243.2U CN201721196243U CN207886484U CN 207886484 U CN207886484 U CN 207886484U CN 201721196243 U CN201721196243 U CN 201721196243U CN 207886484 U CN207886484 U CN 207886484U
- Authority
- CN
- China
- Prior art keywords
- nipple
- piston
- core bar
- pintle
- syringe
- 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 built-in needle applicators, belong to medical instruments field, it is intended to provide a kind of syringe needle for being not required to find adaptation when in use, and the syringe of energy Fast Installation syringe needle, it is characterized in that, a kind of syringe, including injection tube, push rod, the piston being fixedly connected with push rod one end, nipple, syringe needle；It is equipped in the push rod and extends to through-hole of the piston far from push rod one end, the through-hole internal thread is connected with core bar；The syringe needle is located in through-hole and far from core bar, and the syringe needle is made of needle body and pintle；The nipple and through-hole diameter are equal, and the pintle outer diameter is equal to nipple internal diameter；The nipple is located at injection tube bottom end, and the nipple inner wall surrounding is equipped with limiting slot；The pintle side wall is equipped with circular groove, is equipped with limited post in the circular groove, spring is equipped between the limited post and the slot bottom of circular groove；When piston base and injection tube bottom are touched, the core bar is threaded to piston bottom end, and the limited post is embedded in limiting slot.
Description
Technical field
The utility model is related to a kind of medical instrument, more particularly to a kind of syringe.
Background technology
Syringe is one of most common treatment tool of nurse.It, should be according to injection when clinically using syringe and syringe needle
Liquid type, liquid measure and injecting method used and position come determine syringe capacity used size and syringe needle thickness it is long
It is short.The quality of injection tube and syringe needle quality, whether cooperation is proper when use, is usually ignored by people and affects treatment, formation
Time and waste economically.
The Chinese patent of Publication No. CN102247639A discloses a kind of disposable syringe, it includes carrying syringe needle
Syringe, the inner cavity of syringe are equipped with the push rod with piston, are characterized in that between push rod and piston that be equipped with one section same with piston
The cylinder of diameter carries embedded groove on cylinder, syringe internal chamber wall inner circumferential, be equipped with close to the position of syringe needle and be in needle syringe
Elastic telescopic body in internal chamber wall, the elastic telescopic body are used with the cylinder engagement with embedded groove on push rod.
Above-mentioned this disposable syringe needs, first from syringe needle is taken out elsewhere, syringe needle to be mounted on syringe in injection
On could carry out injection work, during this just had more find with installation syringe needle time, affect working efficiency.
Utility model content
The purpose of this utility model is to provide a kind of built-in needle applicator, has to save when using syringe and finds needle
The time of head, and energy Fast Installation syringe needle, improve the effect of injection efficiency.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of syringe, including injection tube, push rod, the piston being fixedly connected with push rod one end, nipple, syringe needle；
It being equipped in the push rod and extends to through-hole of the piston far from push rod one end, the through-hole internal thread is connected with core bar,
The core bar length is more than through-hole length；
The syringe needle is located in through-hole and far from core bar, and the syringe needle is made of needle body and pintle, the pintle and needle body
One end is fixedly connected；
The nipple is located at injection tube bottom end, and the nipple inner wall surrounding is equipped with limiting slot, the pintle, nipple, through-hole
It is coaxially disposed；
The papilla diameter is equal with through-hole diameter, and the outer diameter of the pintle is equal to nipple internal diameter；
The pintle side wall is equipped with circular groove, is equipped with limited post in the circular groove, the limited post and circle are recessed
Spring is equipped between the slot bottom of slot；
When spring is in compressive state, the limited post is in circular groove；
When piston base and injection tube bottom are touched, the core bar is threaded to piston bottom end, and the limited post is embedded in limit
In the slot of position.
By using above-mentioned technical proposal, the bottom for first pushing push rod that piston is made to be pushed into injection tube, then rotating core bar makes
It contradicts with pintle and pushes pintle, so that pintle is embedded in nipple by the cooperation of limited post and limiting slot.Since syringe needle is advance
It is located in channel, syringe needle need to only be released to when injection injection tube, it is easy to operate, while being not required to spend over head time to find again
The installation syringe needle of adaptation, has saved the treatment time.
Further, the side wall of the core bar bottom end, which is equipped with, is surrounded with groove one, and adaptation is equipped in the groove one
Sealing ring；
When core bar is threaded to piston bottom end, the sealing ring is clipped between core bar and piston.
By using above-mentioned technical proposal, sealing ring can be sealed the gap between piston and core bar bottom, make
Air or liquid are not easy to penetrate or flow out from through hole.
Further, the pintle side wall is equipped with around groove two is equipped with, and has the sealing ring of adaptation in the groove two；
When limited post is in limiting slot, the sealing ring is clipped between pintle and nipple side wall.
By using above-mentioned technical proposal, sealing ring can be sealed the gap between pintle and nipple, make air
Or liquid is not easy to penetrate or flow out from through hole.
Further, the one end of the nipple far from injection tube is equipped with film.
By using above-mentioned technical proposal, film can stop that the infectious agents such as extraneous dust, bacterium enter in injection tube, protect
Sanitation and hygiene in injection tube are held, prevent from making the wound of patient be infected when injection.
Further, the one end of the core bar far from embedded through-hole is fixedly installed fixed block.
By using above-mentioned technical proposal, fixed block can facilitate carries out relevant operation to core bar, enables core bar logical
The adjusting of position is quickly and easily carried out in hole.
Further, the side of the fixed block is uniformly provided with antiskid groove.
By using above-mentioned technical proposal, antiskid groove can increase the friction between fixed block and finger, to revolve
It is not susceptible to slipping phenomenon when entering core bar.
Further, the needle guard of adaptation is arranged on the syringe needle, the needle guard diameter is less than papilla diameter.
By using above-mentioned technical proposal, when syringe needle stretches out nipple, removes needle guard and can be used；After the completion of injection,
Needle guard, which is sleeved on syringe needle, can make syringe needle not direct and external, reduction syringe needle accidental injury the human body even possibility of generation cross-infection
Property.
Further, one end side wall of the push rod far from piston is provided with plectrum along its axisymmetrical.
By using above-mentioned technical proposal, medical worker can push push rod that it is made to be moved in injection tube by plectrum,
Keep operation more convenient.
In conclusion the utility model has the advantages that：
1. rotation core bar can push pintle that it is made to be embedded in nipple, pintle can be fixed by limited post and limiting slot
Position makes syringe needle be not easy by outer force effect and in retraction nipple when being injected；
2. core bar bottom is flushed with piston base, liquid is not easy to be pumped into through-hole when injection tube can be made to extract liquid, and
So that pharmaceutical quantities are as accurate as possible in injection tube；
3. the setting of sealing ring can make to keep certain leakproofness between nipple and pintle so that liquid or air are not easy
Into in injection tube；
4. the setting of film can be such that extraneous infectious agent is not easily accessible in injection tube, injection tube is made to keep safety and sanitation.
Description of the drawings
Fig. 1 is the overall structure sectional view for embodying injection tube when syringe needle is not embedded into nipple in the present embodiment；
Fig. 2 is the overall structure sectional view for embodying injection tube when syringe needle is embedded in nipple in the present embodiment；
Fig. 3 is the portions A enlarged drawing in Fig. 2；
Fig. 4 is the portions B enlarged drawing in Fig. 2.
In figure, 1, injection tube；2, push rod；21, through-hole；22, plectrum；3, piston；4, nipple；41, limiting slot；42, film；
5, syringe needle；51, needle body；52, pintle；521, circular groove；5211, limited post；5212, spring；522, groove two；5221, close
Seal ring；6, core bar；61, groove one；611, sealing ring；62, fixed block；621, antiskid groove；7, needle guard.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
A kind of syringe, as shown in Figure 1, including injection tube 1, push rod 2, piston 3, syringe needle 5 and nipple 4.3 internal diameter of piston
Identical as 1 outer diameter of injection tube, piston 3 is fixedly connected with one end of push rod 2 and is inserted into injection tube 1 jointly with push rod 2；Nipple 4
It is located at the bottom end of injection tube 1, is equipped with film 42 in the one end of nipple 4 far from injection tube 1, film 42 can make bacterium, impurity etc.
Infectious agent is not easily accessible in injection tube 1, and injection tube 1 is made to keep health.
As shown in Figure 1, being provided with the plectrum 22 along its axisymmetrical, push rod 2 in one end side wall of the push rod 2 far from piston 3
It is interior to be equipped with the through-hole 21 for extending to 3 bottom end of piston.It is connected with core bar 6 in 21 internal thread of through-hole, the length of core bar 6 is more than through-hole 21
Length；Syringe needle 5 is arranged in through-hole 21 and positioned at the lower section of core bar 6.
As shown in Fig. 2, syringe needle 5 includes needle body 51 and the pintle 52 being fixedly connected with 51 one end of needle body.The internal diameter of nipple 4
Equal to the diameter of through-hole 21, the outer diameter of pintle 52 is equal to the internal diameter of nipple 4；The needle guard 7 being adapted to it is arranged on syringe needle 5.
As shown in Figures 2 and 3, the outer wall of pintle 52 is symmetrically arranged with circular groove 521 along its axis direction, in circular groove
Limited post 5211 is equipped in 521, the length of limited post 5211 is less than the groove depth of circular groove 521.In limited post 5211 and circle
Spring 5212 is equipped between the slot bottom of groove 521, when compressed spring 5212, limited post 5211 can bounce back to circular groove 521
It is interior.The inner wall surrounding of nipple 4 is provided with limiting slot 41, when pushing push rod 2 that 3 bottom of piston is made to be touched with 1 bottom of injection tube,
Rotation core bar 6 makes it be moved toward close to the side of nipple 4, and pushes pintle 52 that it is made to be embedded in nipple 4, needle body 51 and needle guard 7
It is pierced by outside nipple 4.During pintle 52 is embedded in nipple 4, since limited post 5211 is acted on by 5212 counter-force of spring,
When circular groove 521 is moved to limiting slot 41, limited post 5211 by appliance for releasing single to limiting slot 41, to fixed pintle 52 with
The position of nipple 4, at this time the bottom end of core bar 6 flushed with the bottom end of piston 3.
As shown in figure 3, the side wall in 6 bottom end of core bar is equipped with and is surrounded with groove 1, adaptation is equipped in groove 1
Sealing ring 611.
As shown in figure 4, being equipped in 52 side wall of pintle around groove 2 522 is equipped with, there is the sealing ring of adaptation in groove 2 522
5221。
As shown in Figure 1, being fixedly installed fixed block 62 on the top of core bar 6, the side wall of fixed block 62 is equipped with anti-skidding recessed
Slot 621.Antiskid groove 621 can increase the contact area between core bar 6 and finger, so as to it is convenient to core bar 6 into line position
The adjustment set.
Specific implementation process：First limited post 5211 is compressed in circular groove 521, so that pintle 52 is smoothly put into logical
In hole 21.It pushes push rod 2 that piston 3 is made to be pushed into the bottom of injection tube 1 by plectrum 22, then rotates core bar 6 and be allowed to support with pintle 52
It touches, and pushes pintle 52 that it is made to be embedded in nipple 4, film 42 is punctured at this time, and needle guard 7 is pierced by nipple 4 with syringe needle 5.Remove needle
Set 7 pulls push rod 2 that injection tube 1 is made to start to draw liquid, since 3 bottom end of piston keeps flushing with 6 bottom end of core bar, to make medicine
Liquid is not easily accessible in through-hole 21, and the dosage of 1 inner liquid medicine of injection tube can be made as accurate as possible.Sealing ring 611 being capable of needle seal
Gap between bolt 52 and nipple 4, the gap that sealing ring 5221 can be between sealing core bar 6 and piston 3, in injection tube 1
When extracting liquid, liquid or air are not easily accessible in injection tube 1.
It is sleeved on syringe needle 5 after injecting liquid drug, then by needle guard 7, completes whole operation.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of syringe, including injection tube (1), push rod (2), piston (3), the nipple being fixedly connected with push rod (2) one end
(4), syringe needle (5), it is characterized in that：
The through-hole (21) for extending to separate push rod (2) one end of piston (3), the interior spiral shell of the through-hole (21) are equipped in the push rod (2)
Line is connected with core bar (6), and core bar (6) length is more than through-hole (21) length；
The syringe needle (5) is located in through-hole (21) and far from core bar (6), and the syringe needle (5) is by needle body (51) and pintle (52) structure
At the pintle (52) is fixedly connected with needle body (51) one end；
The nipple (4) is located at injection tube (1) bottom end, and nipple (4) inner wall surrounding is equipped with limiting slot (41), the pintle
(52), nipple (4), through-hole (21) are coaxially disposed；
Nipple (4) internal diameter is equal with through-hole (21) diameter, and the outer diameter of the pintle (52) is equal to nipple (4) internal diameter；
Pintle (52) side wall is equipped with circular groove (521), and limited post (5211), institute are equipped in the circular groove (521)
It states and is equipped with spring (5212) between limited post (5211) and the slot bottom of circular groove (521)；
When spring (5212) is in compressive state, the limited post (5211) is in circular groove (521)；
When piston (3) bottom and injection tube (1) bottom are touched, the core bar (6) is threaded to piston (3) bottom end, the limited post
(5211) it is embedded in limiting slot (41).
2. a kind of syringe according to claim 1, it is characterized in that：The side wall of core bar (6) bottom end is equipped with to surround and set
It is equipped with groove one (61), the sealing ring (611) of adaptation is equipped in the groove one (61)；
When core bar (6) is threaded to piston (3) bottom end, the sealing ring (611) is clipped between core bar (6) and piston (3).
3. a kind of syringe according to claim 2, it is characterized in that：Pintle (52) side wall is equipped with around equipped with groove
Two (522), the interior sealing ring (5221) for having adaptation of the groove two (522)；
When limited post (5211) is interior embedded in limiting slot (41), the sealing ring (5221) is clipped in pintle (52) and nipple (4) side
Between wall.
4. a kind of syringe according to claim 1, it is characterized in that：The one end of the nipple (4) far from injection tube (1) is set
There is film (42).
5. a kind of syringe according to claim 1, it is characterized in that：The one of the separate embedded through-hole (21) of the core bar (6)
End is fixedly installed fixed block（62）.
6. a kind of syringe according to claim 5, it is characterized in that：The fixed block（62）Side be uniformly provided with it is anti-skidding
Groove（621）.
7. a kind of syringe according to claim 1, it is characterized in that：The needle guard of adaptation is arranged on the syringe needle (5)
(7), needle guard (7) diameter is less than nipple (4) diameter.
8. a kind of syringe according to claim 1, it is characterized in that：One end side wall of the push rod (2) far from piston (3)
Its axisymmetrical is provided with plectrum (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196243.2U CN207886484U (en) | 2017-09-15 | 2017-09-15 | A kind of syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196243.2U CN207886484U (en) | 2017-09-15 | 2017-09-15 | A kind of syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207886484U true CN207886484U (en) | 2018-09-21 |
Family
ID=63547557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721196243.2U Expired - Fee Related CN207886484U (en) | 2017-09-15 | 2017-09-15 | A kind of syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207886484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112624A (en) * | 2021-12-23 | 2022-03-01 | 盐城工学院 | Improved soil leaching equipment and use method |
-
2017
- 2017-09-15 CN CN201721196243.2U patent/CN207886484U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114112624A (en) * | 2021-12-23 | 2022-03-01 | 盐城工学院 | Improved soil leaching equipment and use method |
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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: 20180921 Termination date: 20190915 |