CN207734420U - A kind of injection device - Google Patents
A kind of injection device Download PDFInfo
- Publication number
- CN207734420U CN207734420U CN201720489617.3U CN201720489617U CN207734420U CN 207734420 U CN207734420 U CN 207734420U CN 201720489617 U CN201720489617 U CN 201720489617U CN 207734420 U CN207734420 U CN 207734420U
- Authority
- CN
- China
- Prior art keywords
- medicament
- pipe
- piston
- injection device
- 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
Abstract
The utility model discloses a kind of injection devices, include the medicament pipe for holding medicament and the piston for pushing medicament, the head end of the medicament pipe is provided with syringe needle, the piston is set to the tail end of the medicament pipe, the piston can be moved from tail end to head end to push medicament in the medicament pipe, the push rod for further including casing and being installed on described sleeve pipe tail end, the medicament pipe is removably installed in described sleeve pipe, the push rod can be moved along the extending direction of the medicament pipe, and the head end of the push rod and the tail end end face of the piston offset.Using rear medicament pipe automatic damage, without artificially deliberately damaging, the drawbacks of human factor participates in generating is avoided, has prevented the reuse of injection device, while simplifying the structure of medicament pipe, it is cost-effective.
Description
Technical field
The utility model is related to medical instruments fields, more particularly to a kind of injection device.
Background technology
Cross-infection occurs in order to avoid mankind or animal input or when taking out medium, syringe must disposably make
With after use i.e. as garbage disposal.Current most commonly used disposable syringe is by cavity cylinder, syringe needle and assembly
Determine journey piston and piston rod composition in cylinder.Greatest problem present in this syringe is needle after injection finishes
It is intact, and syringe body, piston and connect piston piston rod it is also all intact, therefore still can reuse.Therefore can go out
The problem of existing syringe secondary use, lead to safety problem.
Therefore, how to provide it is a kind of prevent reuse injection device be that those skilled in the art need to solve at present
Technical problem.
Utility model content
The purpose of this utility model is to provide a kind of injection device, can prevent to reuse, and improves safety.
In order to solve the above technical problems, the utility model provides a kind of injection device, include the medicament for holding medicament
Pipe and the piston for pushing medicament, the head end of the medicament pipe are provided with syringe needle, and the piston is set to the medicament pipe
Tail end, the piston can be moved from tail end to head end to push medicament in the medicament pipe, further include casing and being installed on
The push rod of described sleeve pipe tail end, the medicament pipe are removably installed in described sleeve pipe, and the push rod can be along the medicament
The extending direction of pipe moves, and the head end of the push rod and the tail end end face of the piston offset.
Preferably, the piston outer periphery is provided with annular protrusion, and annular is provided on the madial wall of the medicament pipe head end
Slot, the annular groove can be clamped with the annular protrusion and be retracted with limiting the piston.
Preferably, the piston outer periphery is disposed with multiple annular protrusions in an axial direction.
Preferably, the piston is specially rubber piston, and is provided with recess in the middle part of rubber piston tail end end face.
Preferably, the syringe needle is set to the edge of the medicament pipe head end end face.
Preferably, described sleeve pipe side is provided with the opening passed in and out for the medicament pipe, the head end setting of described sleeve pipe
It is useful for the escape groove of evacuation syringe needle, the tail end of described sleeve pipe, which is provided with, picks up the ears.
Preferably, described sleeve pipe tail end is provided with guide block, and the through-hole for coordinating the push rod, institute are provided in the middle part of the guide block
Push rod is stated to be installed in the through-hole.
Preferably, the push rod head end is connected with push rod cup.
Preferably, described sleeve pipe periphery is provided with the fixing buckle for fixing the medicament pipe.
Preferably, internal thread is provided on the inside of described sleeve pipe tail end, be provided on the outside of the medicament pipe tail end with it is above-mentioned interior
The matched external screw thread of screw thread.
The utility model provides a kind of injection device, includes the medicament pipe for holding medicament and the work for pushing medicament
Plug, the head end of medicament pipe are provided with syringe needle, and piston is set to the tail end of medicament pipe, and piston can be in medicament pipe from tail end to head
The push rod for further including casing to push medicament and being installed on cannula end is moved at end, and medicament pipe is removably installed in casing,
Push rod can be moved along the extending direction of medicament pipe, and the tail end end face of the head end of push rod and piston offsets.When injection, it will be equipped with
The medicament pipe of medicament is installed in casing, real by pushing push rod to push piston to be moved to head end by the tail end of medicament pipe
The push of existing medicament, due to push rod and piston offset and and be not connected to, therefore push rod can only be removed to the head end of medicament pipe promotion piston
When going out push rod, piston can stay in the head end of medicament pipe and can not retract, using rear medicament pipe automatic damage, without artificially deliberately damaging
It ruins, avoids the drawbacks of human factor participates in generating, prevented the reuse of injection device, while simplifying the knot of medicament pipe
Structure, it is cost-effective.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of injection device provided by the utility model；
Fig. 2 is a kind of structural representation of specific implementation mode Chinese medicine pipe of injection device provided by the utility model
Figure；
Fig. 3 is a kind of structural schematic diagram of specific implementation mode middle sleeve of injection device provided by the utility model.
Specific implementation mode
The core of the utility model is to provide a kind of injection device, can prevent to reuse, and improves safety.
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
It is a kind of knot of specific implementation mode of injection device provided by the utility model to please refer to Fig.1 to Fig. 3, Fig. 1
Structure schematic diagram；Fig. 2 is a kind of structural representation of specific implementation mode Chinese medicine pipe of injection device provided by the utility model
Figure；Fig. 3 is a kind of structural schematic diagram of specific implementation mode middle sleeve of injection device provided by the utility model.
Specific embodiment of the present invention provides a kind of injection device, including medicament pipe 1 and casing 5, medicament pipe 1 are used for
Hold medicament, and its tail end is provided with piston 2, head end is provided with syringe needle, and piston 2 can be in medicament pipe 1 from tail end to head end
Movement is to push medicament.5 tail end of casing is equipped with push rod 3, and medicament pipe 1 is removably installed in casing 5, and push rod 3 being capable of edge
The extending direction of medicament pipe 1 moves, and the head end of push rod 3 and the tail end end face of piston 2 offset.Wherein, the head end of each component is
Close to one end of syringe needle, tail end is one end far from syringe needle.
When injection, the medicament pipe 1 equipped with medicament is installed in casing 5, by push push rod 3 to push piston 2 by
The tail end of medicament pipe 1 is moved to head end, realizes the push of medicament, since push rod 3 offsets with piston 2 and and is not connected to, therefore push rod 3
Piston 2 can only be pushed to the head end of medicament pipe 1, when withdrawing from push rod 3, piston 2 can stay in the head end of medicament pipe 1 and can not retract,
The drawbacks of human factor participates in generating is avoided, note has been prevented without artificially deliberately damaging using rear 1 automatic damage of medicament pipe
The reuse of injection device, while simplifying the structure of medicament pipe, when injection, only replace medicament pipe 1, cost-effective.
In the injection device that specific embodiment of the present invention provides, 2 periphery of piston is provided with annular protrusion, medicament
Annular groove is provided on the madial wall of 1 head end of pipe, annular groove can be clamped with annular protrusion and be retracted to limit piston 2.Specifically,
2 periphery of piston is disposed with multiple annular protrusions in an axial direction, and two annular protrusions are such as arranged.When piston 2 is pushed to medicament pipe 1
, can be stuck by annular protrusion and annular groove when head end, it prevents from retracting.The number of annular protrusion and annular groove can according to circumstances be adjusted
Amount and shape, both are within the protection scope of the present invention.
Wherein, piston 2 can be to be specially rubber piston, and is provided with recess in the middle part of rubber piston tail end end face.It can root
According to need with an ordinary syringe by medicament among rubber piston recess injection enter；Can also from medicament pipe 1 with
Liquid medicine is filled in the aperture of syringe needle coupling part；Also medicament pipe 1 can be used directly as medicine bottle, pharmaceutical factory is directly in medicament pipe 1
Interior perfusion liquid medicine, reduces medicine bottle usage amount.
In order to further improve the security, syringe needle can be set to the edge of 1 head end end face of medicament pipe.When wanting to pass through needle
When head position pushes back piston 2, since stress point is located at 2 edge of piston, discontinuity leads to not push back, and further prevents weight
It is multiple to use.
On the basis of the injection device that above-mentioned each specific implementation mode provides, 5 side of casing is provided with for medicament pipe 1
The opening of disengaging, the head end of casing 5 are provided with the escape groove for avoiding syringe needle, and the tail end of casing 5, which is provided with, picks up the ears, and are convenient for medicine
The installation and dismounting of agent pipe 1.5 tail end of casing is provided with guide block 4,4 middle part of guide block is provided with the through-hole of cooperation push rod 3, push rod 3
It is installed in through-hole, ensures that push rod 3 is smoothly mobile, guide block 4 can be arranged with 5 integral type of casing, and also detachable is arranged.May be used also
To be connected with push rod cup 6 in 3 head end of push rod, offseted by push rod cup 6 and piston 2, convenient for removing and installing for push rod 3.
In order to ensure the stability of injection, can the fixing buckle 7 for fixing medicament pipe 1 be set in 5 periphery of casing, make injection
When casing 5 be relatively fixed with medicament pipe 1, or directly fixed by bayonet connection.Also it can be threadably secured connection, in casing 5
Internal thread is set on the inside of tail end, is arranged and the matched external screw thread of above-mentioned internal thread on the outside of 1 tail end of medicament pipe.
Injection device provided by the utility model is described in detail above.Specific case pair used herein
The principles of the present invention and embodiment are expounded, and the explanation of above example is only intended to help to understand that this practicality is new
The method and its core concept of type.It should be pointed out that for those skilled in the art, not departing from this practicality
Under the premise of new principle, several improvements and modifications can be made to this utility model, these improvement and modification also fall into this
In the protection domain of utility model claims.
Claims (10)
1. a kind of injection device includes the medicament pipe (1) for holding medicament and the piston (2) for pushing medicament, the medicine
The head end of agent pipe (1) is provided with syringe needle, and the piston (2) is set to the tail end of the medicament pipe (1), and the piston (2) can
It is moved from tail end to head end to push medicament in the medicament pipe (1), which is characterized in that further include casing (5) and be installed on
The push rod (3) of described sleeve pipe (5) tail end, the medicament pipe (1) are removably installed in described sleeve pipe (5), the push rod (3)
It can be moved along the extending direction of the medicament pipe (1), and the tail end end face of the head end of the push rod (3) and the piston (2)
It offsets.
2. injection device according to claim 1, which is characterized in that piston (2) periphery is provided with annular protrusion, institute
It states and is provided with annular groove on the madial wall of medicament pipe (1) head end, the annular groove can be clamped with the annular protrusion to limit
The piston (2) is retracted.
3. injection device according to claim 2, which is characterized in that piston (2) periphery is disposed in an axial direction
Multiple annular protrusions.
4. injection device according to claim 3, which is characterized in that the piston (2) is specially rubber piston, and described
It is provided with recess in the middle part of rubber piston tail end end face.
5. injection device according to claim 1, which is characterized in that the syringe needle is set to medicament pipe (1) head end
The edge of end face.
6. according to the injection device described in claim 1 to 5 any one, which is characterized in that described sleeve pipe (5) side is provided with
For the opening of the medicament pipe (1) disengaging, the head end of described sleeve pipe (5) is provided with the escape groove for avoiding syringe needle, described
The tail end of casing (5), which is provided with, picks up the ears.
7. injection device according to claim 6, which is characterized in that described sleeve pipe (5) tail end is provided with guide block (4), institute
It states and is provided with the through-hole for coordinating the push rod (3) in the middle part of guide block (4), the push rod (3) is installed in the through-hole.
8. injection device according to claim 7, which is characterized in that push rod (3) head end is connected with push rod cup (6).
9. injection device according to claim 8, which is characterized in that described sleeve pipe (5) periphery is provided with for fixing
State the fixing buckle (7) of medicament pipe (1).
10. injection device according to claim 8, which is characterized in that be provided with interior spiral shell on the inside of described sleeve pipe (5) tail end
Line, medicament pipe (1) the tail end outside are provided with and the matched external screw thread of above-mentioned internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720489617.3U CN207734420U (en) | 2017-05-04 | 2017-05-04 | A kind of injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720489617.3U CN207734420U (en) | 2017-05-04 | 2017-05-04 | A kind of injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207734420U true CN207734420U (en) | 2018-08-17 |
Family
ID=63114657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720489617.3U Expired - Fee Related CN207734420U (en) | 2017-05-04 | 2017-05-04 | A kind of injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207734420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975126A (en) * | 2017-05-04 | 2017-07-25 | 广东工业大学 | A kind of injection device |
-
2017
- 2017-05-04 CN CN201720489617.3U patent/CN207734420U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975126A (en) * | 2017-05-04 | 2017-07-25 | 广东工业大学 | A kind of injection device |
| CN106975126B (en) * | 2017-05-04 | 2023-11-07 | 广东工业大学 | Injection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX2009013201A (en) | Stopper and plunger rod for a pre-filled syringe. | |
| WO2011126764A3 (en) | Stoppers used in pre-filled syringes | |
| NZ510883A (en) | Hypodermic syringe having a selectively retractable needle, with catch to allow needle to move to retracted position | |
| MX2010008702A (en) | Injection syringe. | |
| BRPI0517177A (en) | self retracting safety syringe | |
| CN207734420U (en) | A kind of injection device | |
| CN106975126A (en) | A kind of injection device | |
| CN211327473U (en) | Syringe with a needle | |
| CN209187536U (en) | It can prevent the dispensing injector with pin of medical fluid splash | |
| CN206443985U (en) | Medical syringe | |
| CN206138487U (en) | Disposable digit subtracts shadow angiogram art with aseptic DSA syringe | |
| CN114146260A (en) | Safe type cylinder device | |
| CN209253827U (en) | A kind of division of endocrinology's injection needle | |
| CN211381960U (en) | Animal doctor is with convenient animal treatment needle tubing of dismantling | |
| CN204092689U (en) | A kind of intestine moistening gel instrument for defecation | |
| CN220025301U (en) | Long-handle injection gun with safety protection function | |
| CN210871480U (en) | Mouth mirror | |
| CN204147356U (en) | Syringe | |
| CN202236672U (en) | Hypodermic syringe | |
| CN202478312U (en) | Novel syringe | |
| CN207886487U (en) | A kind of syringe | |
| CN210056958U (en) | Stomach nursing device for general surgery department | |
| CN210813156U (en) | Syringe for fat centrifugation | |
| CN209695986U (en) | A kind of insulin injection pen is hand-held to unload needle device | |
| CN200991468Y (en) | Medicine-needle integrated syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180817 Termination date: 20210504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |