CN106975126A - A kind of injection device - Google Patents
A kind of injection device Download PDFInfo
- Publication number
- CN106975126A CN106975126A CN201710308535.9A CN201710308535A CN106975126A CN 106975126 A CN106975126 A CN 106975126A CN 201710308535 A CN201710308535 A CN 201710308535A CN 106975126 A CN106975126 A CN 106975126A
- Authority
- CN
- China
- Prior art keywords
- medicament
- pipe
- piston
- injection device
- tail end
- 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.)
- Granted
Links
- 239000007924 injection Substances 0.000 title claims abstract description 39
- 238000002347 injection Methods 0.000 title claims abstract description 39
- 239000003814 drug Substances 0.000 claims abstract description 90
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 210000005069 ears Anatomy 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
Abstract
The invention discloses a kind of injection device, including for holding the medicament pipe of medicament and piston for pushing medicament, the head end of the medicament pipe is provided with syringe needle, the piston is arranged at the tail end of the medicament pipe, the piston from tail end to head end movement can push medicament in the medicament pipe, also include sleeve pipe and be installed on the push rod of described sleeve pipe tail end, the medicament pipe is removably installed in described sleeve pipe, the push rod can be moved along the bearing of trend of the medicament pipe, and the tail end end face of the head end of the push rod and the piston offsets.Using rear medicament pipe automatic damage, without artificially deliberately damaging, it is to avoid the drawbacks of human factor participates in producing, prevent the reuse of injection device, while simplify the structure of medicament pipe, it is cost-effective.
Description
Technical field
The present invention relates to medical instruments field, more particularly to a kind of injection device.
Background technology
Occurs cross-infection in order to avoid the mankind or animal input or when taking out medium, syringe must disposably make
With, after use i.e. be used as garbage disposal.The use of most disposable syringe is at present by cavity cylinder, syringe needle and assembling
Determine journey piston and piston rod composition in cylinder.Greatest problem present in this syringe is its pin after injection is finished
It is intact, and syringe body, piston and connect piston piston rod it is also all intact, therefore still can reuse.Therefore it can go out
Show the problem of syringe is secondary to be used, cause safety problem.
Therefore, how to provide a kind of injection device for preventing to reuse is that those skilled in the art need solution at present
Technical problem.
The content of the invention
It is an object of the invention to provide a kind of injection device, it can prevent to reuse, improve security.
In order to solve the above technical problems, the present invention provides a kind of injection device, including for hold medicament medicament pipe and
Piston for pushing medicament, the head end of the medicament pipe is provided with syringe needle, and the piston is arranged at the tail end of the medicament pipe,
The piston can push medicament in the medicament pipe from tail end to head end movement, in addition to sleeve pipe and be installed on the set
The push rod of pipe tail end, the medicament pipe is removably installed in described sleeve pipe, and the push rod being capable of prolonging along the medicament pipe
Direction movement is stretched, and the tail end end face of the head end of the push rod and the piston offsets.
Preferably, the piston outer periphery is provided with annular protrusion, the madial wall of the medicament pipe head end and is provided with annular
Groove, the annular groove can be retracted with the annular protrusion clamping with limiting the piston.
Preferably, the piston outer periphery is disposed with multiple annular protrusions vertically.
Preferably, the piston is specially to be provided with depression in the middle part of rubber piston, and the rubber piston tail end end face.
Preferably, the syringe needle is arranged at 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, and the head end of described sleeve pipe is set
There is the escape groove for avoiding 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 the middle part of guide block, the guide block and is provided with the through hole for coordinating the push rod, institute
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 clip for fixing the medicament pipe.
Preferably, be provided with the inside of described sleeve pipe tail end on the outside of internal thread, the medicament pipe tail end be provided with it is above-mentioned interior
The external screw thread of screw thread matching.
The present invention provides a kind of injection device, including for holding the medicament pipe of medicament and piston for pushing medicament,
The head end of medicament pipe is provided with syringe needle, and piston is arranged at the tail end of medicament pipe, and piston can be in medicament pipe from tail end to head end
Movement is to push medicament, in addition to sleeve pipe and the push rod for being installed on cannula end, and medicament pipe is removably installed in sleeve pipe, pushed away
Bar can be moved along the bearing of trend of medicament pipe, and the head end of push rod and the tail end end face of piston offset.During injection, medicine will be equipped with
The medicament pipe of agent is installed in sleeve pipe, by promoting push rod so as to promote piston to be moved to head end by the tail end of medicament pipe, is realized
The push of medicament, due to push rod and piston offset and and be not connected to, therefore push rod can only to medicament pipe head end promote piston, withdraw from
During 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
Ruin, it is to avoid the drawbacks of human factor participates in producing, prevented the reuse of injection device, while simplifying the knot of medicament pipe
Structure, it is cost-effective.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of injection device provided by the present invention；
Fig. 2 is a kind of structural representation of embodiment Chinese medicine pipe of injection device provided by the present invention；
Fig. 3 is a kind of structural representation of embodiment middle sleeve of injection device provided by the present invention.
Embodiment
The core of the present invention is to provide a kind of injection device, can prevent to reuse, improve security.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 1 to Fig. 3 is refer to, Fig. 1 shows for a kind of structure of embodiment of injection device provided by the present invention
It is intended to；Fig. 2 is a kind of structural representation of embodiment Chinese medicine pipe of injection device provided by the present invention；Fig. 3 is
A kind of structural representation of embodiment middle sleeve of injection device provided by the present invention.
The specific embodiment of the invention provides a kind of injection device, including medicament pipe 1 and sleeve pipe 5, and medicament pipe 1 is used to hold
Medicament, and its tail end is provided with piston 2, head end is provided with syringe needle, and piston 2 can be moved in medicament pipe 1 from tail end to head end
To push medicament.The tail end of sleeve pipe 5 is provided with push rod 3, and medicament pipe 1 is removably installed in sleeve pipe 5, and push rod 3 can be along medicament
The bearing of trend of pipe 1 is moved, and the head end of push rod 3 offsets with the tail end end face of piston 2.Wherein, the head end of each part is close
One end of syringe needle, tail end is one end away from syringe needle.
During injection, the medicament pipe 1 that will be equipped with medicament is installed in sleeve pipe 5, by promote push rod 3 so as to promote piston 2 by
The tail end of medicament pipe 1 is moved to head end, realizes the push of medicament, because push rod 3 and piston 2 offset and and are not connected to, therefore push rod 3
Piston 2 can only be promoted 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,
Using the rear automatic damage of medicament pipe 1, without artificially deliberately damaging, it is to avoid the drawbacks of human factor participates in producing, note is prevented
The reuse of injection device, while simplifying the structure of medicament pipe, only changes medicament pipe 1 during injection, cost-effective.
In the injection device that the specific embodiment of the invention is provided, the periphery of piston 2 is provided with annular protrusion, medicament pipe 1
Annular groove is provided with the madial wall of head end, annular groove can limit piston 2 with annular protrusion clamping and retract.Specifically, it is living
Fill in 2 peripheries and be disposed with multiple annular protrusions vertically, two annular protrusions are such as set.When piston 2 is pushed to the head of medicament pipe 1
, can be stuck by annular protrusion and annular groove during end, prevent from retracting.The quantity of annular protrusion and annular groove can according to circumstances be adjusted
And shape, within protection scope of the present invention.
Wherein, piston 2 can be specially rubber piston, and rubber piston tail end end face middle part is provided with depression.Can root
According to need with an ordinary syringe by medicament from the middle of 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 security, syringe needle can be arranged to the edge of the head end end face of medicament pipe 1.When wanting by pin
When head position pushes back piston 2, because stress point is located at the edge of piston 2, discontinuity leads to not push back, and further prevents weight
Use again.
On the basis of the injection device that above-mentioned each embodiment is provided, the side of sleeve pipe 5 is provided with for medicament pipe 1
The opening of turnover, the head end of sleeve pipe 5 is provided with the escape groove for avoiding syringe needle, and the tail end of sleeve pipe 5, which is provided with, picks up the ears, and is easy to medicine
The installation and dismounting of agent pipe 1.The tail end of sleeve pipe 5 is provided with guide block 4, the middle part of guide block 4 is provided with the through hole for coordinating push rod 3, push rod 3
It is installed in through hole, it is ensured that push rod 3 is smoothly mobile, guide block 4 can be set with the integral type of sleeve pipe 5, also detachable is set.May be used also
To be connected with push rod cup 6 in the head end of push rod 3, offseted by push rod cup 6 with piston 2, be easy to removing and installing for push rod 3.
In order to ensure the stability of injection, it can be provided for fixing the clip 7 of medicament pipe 1 in the periphery of sleeve pipe 5, make injection
When sleeve pipe 5 be relatively fixed with medicament pipe 1, or directly fixed by bayonet connection.Also connection can be threadably secured, in sleeve pipe 5
The external screw thread for setting and being matched with above-mentioned internal thread on the outside of internal thread, the tail end of medicament pipe 1 is set on the inside of tail end.
Injection device provided by the present invention is described in detail above.Specific case used herein is to this hair
Bright principle and embodiment is set forth, the explanation of above example be only intended to help to understand the present invention method and its
Core concept.It should be pointed out that for those skilled in the art, not departing from the premise of the principle of the invention
Under, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the protection of the claims in the present invention
In the range of.
Claims (10)
1. a kind of injection device, including for holding the medicament pipe (1) of medicament and piston (2) for pushing medicament, the medicine
The head end of agent pipe (1) is provided with syringe needle, and the piston (2) is arranged at the tail end of the medicament pipe (1), and the piston (2) can
From tail end to head end movement to push medicament in the medicament pipe (1), it is characterised in that also including sleeve pipe (5) and be installed on
The push rod (3) of described sleeve pipe (5) tail end, the medicament pipe (1) is removably installed in described sleeve pipe (5), the push rod (3)
It can be moved along the bearing of trend of the medicament pipe (1), and the tail end end face of the head end and the piston (2) of the push rod (3)
Offset.
2. injection device according to claim 1, it is characterised in that piston (2) periphery is provided with annular protrusion, institute
Annular groove is provided with the madial wall for stating medicament pipe (1) head end, the annular groove can be limited with the annular protrusion clamping
The piston (2) is retracted.
3. injection device according to claim 2, it is characterised in that piston (2) periphery is disposed with vertically
Multiple annular protrusions.
4. injection device according to claim 3, it is characterised in that the piston (2) is specially rubber piston, and described
Depression is provided with the middle part of rubber piston tail end end face.
5. injection device according to claim 1, it is characterised in that the syringe needle is arranged at medicament pipe (1) head end
The edge of end face.
6. the injection device according to claim 1 to 5 any one, it is characterised in that described sleeve pipe (5) is provided with sideways
The opening passed in and out for the medicament pipe (1), the head end of described sleeve pipe (5) is provided with the escape groove for avoiding syringe needle, described
The tail end of sleeve pipe (5), which is provided with, picks up the ears.
7. injection device according to claim 6, it is characterised in that described sleeve pipe (5) tail end is provided with guide block (4), institute
State and be 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, it is characterised in that push rod (3) head end is connected with push rod cup (6).
9. injection device according to claim 8, it is characterised in that described sleeve pipe (5) periphery is provided with for fixing institute
State the clip (7) of medicament pipe (1).
10. injection device according to claim 8, it is characterised in that be provided with interior spiral shell on the inside of described sleeve pipe (5) tail end
The external screw thread matched with above-mentioned internal thread is provided with the outside of line, medicament pipe (1) tail end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710308535.9A CN106975126B (en) | 2017-05-04 | 2017-05-04 | Injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710308535.9A CN106975126B (en) | 2017-05-04 | 2017-05-04 | Injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106975126A true CN106975126A (en) | 2017-07-25 |
| CN106975126B CN106975126B (en) | 2023-11-07 |
Family
ID=59341015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710308535.9A Active CN106975126B (en) | 2017-05-04 | 2017-05-04 | Injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106975126B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174730A (en) * | 2017-07-27 | 2017-09-19 | 深圳开立生物医疗科技股份有限公司 | Couplant extrusion device and ultrasonic diagnostic equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2910235Y (en) * | 2006-05-12 | 2007-06-13 | 李�根 | Safety syringe |
| CN201012196Y (en) * | 2007-01-19 | 2008-01-30 | 中山博泰药械有限公司 | Clip type bottle water injection pre-pouring injection syringe |
| CN201361324Y (en) * | 2009-03-19 | 2009-12-16 | 牛俐 | Disposable injector |
| CN201492763U (en) * | 2009-09-27 | 2010-06-02 | 郝杰 | Disposable self-locking type syringe |
| CN203815993U (en) * | 2014-04-29 | 2014-09-10 | 周学锋 | Recycling-prevention injector with multisection-separated pushing rod |
| CN105339027A (en) * | 2013-06-28 | 2016-02-17 | 群康生技股份有限公司 | Syringe |
| CN207734420U (en) * | 2017-05-04 | 2018-08-17 | 广东工业大学 | A kind of injection device |
-
2017
- 2017-05-04 CN CN201710308535.9A patent/CN106975126B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2910235Y (en) * | 2006-05-12 | 2007-06-13 | 李�根 | Safety syringe |
| CN201012196Y (en) * | 2007-01-19 | 2008-01-30 | 中山博泰药械有限公司 | Clip type bottle water injection pre-pouring injection syringe |
| CN201361324Y (en) * | 2009-03-19 | 2009-12-16 | 牛俐 | Disposable injector |
| CN201492763U (en) * | 2009-09-27 | 2010-06-02 | 郝杰 | Disposable self-locking type syringe |
| CN105339027A (en) * | 2013-06-28 | 2016-02-17 | 群康生技股份有限公司 | Syringe |
| CN203815993U (en) * | 2014-04-29 | 2014-09-10 | 周学锋 | Recycling-prevention injector with multisection-separated pushing rod |
| CN207734420U (en) * | 2017-05-04 | 2018-08-17 | 广东工业大学 | A kind of injection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174730A (en) * | 2017-07-27 | 2017-09-19 | 深圳开立生物医疗科技股份有限公司 | Couplant extrusion device and ultrasonic diagnostic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106975126B (en) | 2023-11-07 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant |