CN105194765B - A kind of pre-encapsulated injector - Google Patents
A kind of pre-encapsulated injector Download PDFInfo
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- CN105194765B CN105194765B CN201510774602.7A CN201510774602A CN105194765B CN 105194765 B CN105194765 B CN 105194765B CN 201510774602 A CN201510774602 A CN 201510774602A CN 105194765 B CN105194765 B CN 105194765B
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Abstract
The invention belongs to the field of medical instrument technology, more particularly to a kind of pre-encapsulated injector, including cylinder, the push rod that can be moved back and forth is equipped with the cylinder, the front end of cylinder is connected with seal cap, the front portion of the cylinder is equipped with connecting seat, the passage for accommodating puncture needle is equipped with the connecting seat, on the passage block is equipped with close to one end of inner barrel medicine cavity, the block is connected with shaft, the front end of the connecting seat is connected with seal receptacle, the seal receptacle is installed in seal cap, the front end of seal receptacle is provided with sealing cover, syringe needle accommodating chamber is equipped with the sealing cover.The present invention have the advantages that with puncture needle can simultaneously avoid storage when puncture needle and liquid be in contact, sealed reliable.
Description
Technical field
The invention belongs to the field of medical instrument technology, more particularly to a kind of pre-encapsulated injector.
Background technology
Drug administration by injection refers to sterile liquid medicine being injected in vivo, and achievees the purpose that to prevent and treat disease, it is inhaled with medicine
Receive fast, blood concentration rise is rapid, into internal dose it is accurate the advantages of.Common drug administration by injection mainly has vein, muscle
And hypodermic injection, other further include intraperitoneal injection, intra-articular, subconjunctival space and epidural injection.
Syringe for human injection successively experienced four generation products：The first generation is nonexpondable full Glass syringe
Device, at present less use；The second generation is disposable aseptic plastic syringe, at present still universal in use, having
The advantages of cost is low, easy to use, but at the same time there is also not acid and alkali-resistance, it is not recyclable, pollution environment the shortcomings of；The third generation
It is disposable pre-encapsulated injector, currently developed countries and regions are progressively promoted the use of；Forth generation is nitrogen high pressure needleless
Syringe, at present also in the stage of development.
Pre-encapsulated injector has the following advantages；First, using the glass and rubber assembly of high-quality, have with medicine good
Compatibility, it can be ensured that the stability of the medicine of packaging；2nd, medicine wave caused by storage and the absorption of transfer process is reduced
Take, particularly with expensive biochemical preparation, tool is of great significance；3rd, avoid aspirating repeatedly after using dilution, reduce
Secondary pollution chance；4th, it is more accurate than medical staff's craft aspiration medicinal liquid by the way of bottle placer quantitative filling liquid；
5th, medicine bottle title can be directly indicated in injection vessel, is clinically not susceptible to mistake；6th, it is easy to operate, compare in clinical and use
Ampoule saves the time of half, is particularly suitable for Emergency Patients.Since pre-encapsulated injector has storage medicine and common note at the same time
Two kinds of effects are penetrated, and employ compatibility and the material having good stability, not only securely and reliably, and compare traditional " medicine
The mode of bottle+syringe ", reduces from the production artificial and cost spent into use, to pharmacy corporation to greatest extent
Perhaps many advantages are brought with Clinical practice, therefore, pre-encapsulated injector has been adopted by more and more pharmacy corporations at present
With and be applied in clinic.
The puncture needle of pre-encapsulated injector usually selects metal material, after its liquid Long Term Contact with pre- embedding in cylinder
It can react, malpractice easily occur, in order to avoid the generation of such problem, common solution method is noted in pre- embedding
Puncture needle is not placed in emitter, but puncture needle is individually placed, when use again completes puncture needle mounted in the head of syringe
Injection, but there are problems with for this kind of mode：First, since puncture needle small volume, independent storage and managenent be easy to cause loss,
And need to be separately provided sealing to puncture needle, sterilization and disinfection device again, improve production and management cost；Show when the 2nd, using
Puncture needle is installed to syringe in field, adds operating procedure, and then can extend injection time, inconvenient to use.
The content of the invention
The present invention is in order to solve the above-mentioned technical problem, and to provide a kind of puncture needle when can simultaneously avoid storage with puncture needle
It is in contact with liquid, the pre-encapsulated injector of sealed reliable.
The technical scheme is that：A kind of pre-encapsulated injector, including cylinder, interior be equipped with of the cylinder can move back and forth
Push rod, the front end of cylinder is connected with seal cap, and the front portion of the cylinder is equipped with connecting seat, is worn in the connecting seat equipped with receiving
The passage of pricker, is equipped with block on the passage, the block is connected with shaft, the company close to one end of inner barrel medicine cavity
The front end of joint chair is connected with seal receptacle, and the seal receptacle is installed in seal cap, and the front end of seal receptacle is provided with sealing cover, described
Syringe needle accommodating chamber is equipped with sealing cover.
Technical scheme further includes：The block is total to by polypropylene, cyclic olefin polymer or cyclic olefin
Polymers is made.It will not react with liquid Long Term Contact, property is stablized, it can be ensured that safe to use.
Technical scheme further includes：The block is integrally formed with shaft, and the shaft is located in connecting seat, is turned
Axis connection has knob, and the knob is installed on connecting seat shell, and the connecting seat shell is equipped with the sign opened and closed
Block.Operated by knob according to the instruction of mark block on connecting seat, it is easy to use and maloperation can be avoided, securely and reliably.
Technical scheme further includes：The block is integrally formed with shaft, and one end of the shaft is positioned at connection
Seat is internal, and the other end of shaft is located at outside connecting seat, and the connecting seat shell is equipped with the mark block opened and closed.Pass through
Rotating shaft, is operated according to the instruction of mark block on connecting seat, simple in structure, easy to use and can avoid maloperation, is pacified
It is complete reliable.
Technical scheme further includes：The shaft is located in connecting seat, the close block and shaft connecting pin
The lower section of block be equipped with spring.Spring is set below block, the external object promotion in transport, storing process can be avoided to wear
Pricker is downwardly into medicine cavity and is contacted with liquid.
Technical scheme further includes：The sealing cover in step-like, the wide portion and seal receptacle of the sealing cover it
Between be provided with seal washer, the narrow portion of the sealing cover passes through the opening of seal cap inner upper.Sealed reliable can simultaneously avoid by
Leak in the liquid that pressure change occurs.
Technical scheme further includes：The edge of the seal receptacle be equipped with connection convex block, the seal cap it is interior
Side wall is equipped with the connecting groove to match with being connected convex block.Cooperation using groove and convex block ensures sealed reliable.
Technical scheme further includes：The cylinder, seal cap and seal receptacle polymerize by polypropylene, cyclic olefin
Thing or cyclic olefin copolymer are made, and the puncture needle is made of stainless steel, and the sealing cover is made of polyurethane elastomer.
Material capability is stable, it is safe and reliable to ensure.
The beneficial effects of the invention are as follows：First, the syringe of puncture needle is designed with, can be avoided due to puncturing needle body
The problem of smaller, the independent storage and managenent of product be easy to cause loss, while eliminate to be separately provided and puncture needle is sealed, is sterilized
Chlorination equipment, production and management cost can be reduced, also, eliminate the operating procedure of in-site installation puncture needle, direct injection
, it is easy to use, and can meet the needs of Emergency Patients；
Secondly, the lower end of puncture needle installation passage sets block in connecting seat, can be by metal when transport or storage
Puncture needle is effectively isolated with medicine cavity inner liquid medicine, avoid both contact react caused by security risk, in use, rotating shaft
Drive block to rotate clockwise, medicine cavity is connected with puncturing needle passageway, so that the liquid in medicine cavity is expelled to by puncture needle
It is simple in structure, using reliable on human body；
Again, the seal receptacle sealed to connecting seat is set again in seal cap and puncture needle head is sealed
Sealing cover, realizes dual-seal, and sealed reliable can simultaneously avoid the leakage occurred due to inside and outside pressure change.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is seal assembly schematic diagram of the present invention.
In figure, 1, push rod, 2, cylinder, 21, medicine cavity, 22, connecting seat, 23, shaft, 24, block, 3, seal cap, 4, puncture
Pin, 5, seal receptacle, 51, connection convex block, 6, sealing cover, 61, syringe needle accommodating chamber.
Embodiment
Technical scheme is described in detail below in conjunction with the accompanying drawings.
A kind of pre-encapsulated injector of the present invention, the liquid that needs can be injected（Such as cold drug, antiphlogistic etc.）In advance
It is filling that direct injection during use, it compares traditional " medicine bottle+syringe " mode in needle body, reduce from production to
Spent artificial and cost, perhaps many advantages are brought to pharmacy corporation and Clinical practice in use.
As shown in Figure 1, the pre-encapsulated injector of the present invention includes the interior cylinder 2 that liquid is housed, it is provided with and pushes away in cylinder 2
Bar 1, which can either be encapsulated in liquid in cylinder, and can be moved back and forth in cylinder（Wherein, puncture needle 4 is installed
One end is defined as front end）Injection is completed into the human body to promote liquid to be injected from puncture needle.It is connected with the front end of cylinder 2 pair
The seal cap 3 that 2 front end of cylinder and puncture needle 4 are sealed, enters in syringe to avoid debris in transport, storing process, blocks up
Pin hole or pollution liquid are filled in, improves safety in utilization.
In order to install puncture needle, connecting seat 22 is equipped with the front portion of cylinder 2, is equipped with connecting seat 22 and accommodates puncture needle 4
Passage, is designed with the syringe of puncture needle, can avoid since puncture needle small volume, independent storage and managenent are be easy to cause
The problem of loss, while the chlorination equipment for being separately provided and being sealed, being sterilized to puncture needle is eliminated, production and management can be reduced
Cost, also, the operating procedure of in-site installation puncture needle is eliminated, direct injection is easy to use, and can meet that emergency treatment is suffered from
The demand of person.
In order to avoid puncture needle contact with liquid react caused by security risk, on the passage of installation puncture needle 4
Block 24 is equipped with close to one end of 2 inside medicine cavity 21 of cylinder, which is connected with shaft 23 and can turn under the drive of shaft
It is dynamic.Set block to be advantageous in that, when transport or storage, metal puncture pin and medicine cavity inner liquid medicine can be effectively isolated, kept away
Exempt from security risk caused by both contacts react；In use, rotating shaft drives block to rotate clockwise, by medicine cavity with wearing
Lancet channel connects, simple in structure, using reliable so that the liquid in medicine cavity is expelled on human body by puncture needle.
In the embodiment of the present invention one, the integral adult of block 24 and shaft 23, by polypropylene, cyclic olefin polymer or
Person's cyclic olefin copolymer is made, it will not react with liquid Long Term Contact, and property is stablized, it can be ensured that safe to use.Should
Shaft 23 is located in connecting seat 22 and is connected with knob, which is installed on 22 shell of connecting seat, on 22 shell of connecting seat
Mark block equipped with opening and closing.Operated by knob according to the instruction of mark block on connecting seat, it is easy to use and can
Maloperation is avoided, securely and reliably.
In the embodiment of the present invention two, the integral adult of block 24 and shaft 23, by polypropylene, cyclic olefin polymer or
Person's cyclic olefin copolymer is made, it will not react with liquid Long Term Contact, and property is stablized, it can be ensured that safe to use.Should
One end of shaft 23 is located inside connecting seat 22, and the other end of shaft 23 is located at outside connecting seat 22, on 22 shell of connecting seat
Mark block equipped with opening and closing.By rotating shaft, operated according to the instruction of mark block on connecting seat, structure letter
It is single, easy to use and maloperation can be avoided, securely and reliably.
In the embodiment of the present invention three, shaft 23 is installed in connecting seat 22, and one end of block 24 is connected with shaft 23, gear
The other end of block 24 is being equipped with bullet positioned at puncturing in needle passageway close to block 24 and the lower section of the block 24 of 23 connecting pin of shaft
Spring, can avoid in transport, external object promotes puncture needle to be downwardly into medicine cavity and contacted with liquid in storing process, improve and use
Security reliability.
In order to improve leakproofness, the front end of connecting seat 22 is connected with seal receptacle 5, which is installed in seal cap 3,
The front end of seal receptacle 5 is provided with sealing cover 6, and syringe needle accommodating chamber 61 is equipped with the sealing cover 6.Set again in seal cap 3 to even
Seal receptacle 5 that joint chair 22 is sealed and the sealing cover 6 that is sealed to 4 head of puncture needle are, it can be achieved that dual-seal, sealing can
Lean on and be avoided that due to inside and outside pressure change and leak.
Specifically, the edge of seal receptacle 5 is equipped with connection convex block 51, and correspondingly, the madial wall of seal cap 3 is equipped with connecting
The connecting groove that convex block 51 matches is connect, the cooperation using groove and convex block ensures sealed reliable.The design of sealing cover 6 is in step
Shape, is provided with seal washer between the wide portion of the sealing cover 6 and seal receptacle 5, the narrow portion of sealing cover 6 is passed through on 3 inside of seal cap
The opening of side, it can ensure that sealed reliable and is avoided that the liquid occurred due to pressure change leaks.
The cylinder 2 of pre-encapsulated injector of the present invention, seal cap 3, seal receptacle 5, block 24 are by polypropylene, cyclic olefin
Polymer or cyclic olefin copolymer are made, and puncture needle 4 is made of stainless steel, and sealing cover 6 is made of polyurethane elastomer, choosing
The Material texture performance taken is stablized, it can be ensured that safe and reliable.
Although the foregoing describing the embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is to be defined by the appended claims.Those skilled in the art without departing substantially from
On the premise of the principle of the present invention and essence, various changes or modifications can be made to these embodiments, but these changes and
Modification each falls within protection scope of the present invention.
Claims (8)
1. a kind of pre-encapsulated injector, including cylinder（2）, the cylinder（2）It is interior equipped with the push rod that can be moved back and forth（1）, cylinder
（2）Front end be connected with seal cap（3）, it is characterised in that：The cylinder（2）Front portion be equipped with connecting seat（22）, the connection
Seat（22）Interior be equipped with accommodates puncture needle（4）Passage, close to cylinder on the passage（2）Internal medicine cavity（21）One end be equipped with gear
Block（24）, the block（24）It is connected with shaft（23）, the connecting seat（22）Front end be connected with seal receptacle（5）, it is described close
Seal seat（5）Installed in seal cap（3）It is interior, seal receptacle（5）Front end be provided with sealing cover（6）, the sealing cover（6）It is interior to be equipped with pin
Head accommodating chamber（61）.
A kind of 2. pre-encapsulated injector as claimed in claim 1, it is characterised in that：The block（24）By polypropylene, ring-type
Olefin polymer or cyclic olefin copolymer are made.
A kind of 3. pre-encapsulated injector as claimed in claim 2, it is characterised in that：The block（24）With shaft（23）One
Shaping, the shaft（23）Positioned at connecting seat（22）It is interior, shaft（23）Knob is connected with, the knob is installed on connecting seat（22）
On shell, the connecting seat（22）Shell is equipped with the mark block opened and closed.
A kind of 4. pre-encapsulated injector as claimed in claim 2, it is characterised in that：The block（24）With shaft（23）One
Shaping, the shaft（23）One end be located at connecting seat（22）Inside, shaft（23）The other end be located at connecting seat（22）Outside,
The connecting seat（22）Shell is equipped with the mark block opened and closed.
A kind of 5. pre-encapsulated injector as claimed in claim 2, it is characterised in that：The shaft（23）Positioned at connecting seat（22）
It is interior, the close block（24）With shaft（23）The block of connecting pin（24）Lower section be equipped with spring.
A kind of 6. pre-encapsulated injector as described in claim 3 to 5 any claim, it is characterised in that：The sealing cover
（6）In step-like, the sealing cover（6）Wide portion and seal receptacle（5）Between be provided with seal washer, the sealing cover（6）'s
Narrow portion passes through seal cap（3）The opening of inner upper.
A kind of 7. pre-encapsulated injector as claimed in claim 6, it is characterised in that：The seal receptacle（5）Edge be equipped with
Connect convex block（51）, the seal cap（3）Madial wall be equipped with being connected convex block（51）The connecting groove to match.
A kind of 8. pre-encapsulated injector as claimed in claim 2, it is characterised in that：The cylinder（2）, seal cap（3）With it is close
Seal seat（5）It is made by polypropylene, cyclic olefin polymer or cyclic olefin copolymer, the puncture needle（4）By stainless steel
It is made, the sealing cover（6）It is made of polyurethane elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774602.7A CN105194765B (en) | 2015-11-13 | 2015-11-13 | A kind of pre-encapsulated injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774602.7A CN105194765B (en) | 2015-11-13 | 2015-11-13 | A kind of pre-encapsulated injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105194765A CN105194765A (en) | 2015-12-30 |
| CN105194765B true CN105194765B (en) | 2018-05-01 |
Family
ID=54942936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510774602.7A Active CN105194765B (en) | 2015-11-13 | 2015-11-13 | A kind of pre-encapsulated injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105194765B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671431A (en) * | 2002-05-27 | 2005-09-21 | Mb因诺瓦蒂翁公司 | Disposable injection device designed to be pre-filled |
| CN102068735A (en) * | 2011-02-25 | 2011-05-25 | 山东威高集团医用高分子制品股份有限公司 | Pre-filled glass syringe |
| CN102905743A (en) * | 2010-03-25 | 2013-01-30 | 赛诺菲-安万特德国有限公司 | Medicated module with user selection |
| CN103930142A (en) * | 2011-10-14 | 2014-07-16 | 安姆根有限公司 | Syringe and method of assembly |
-
2015
- 2015-11-13 CN CN201510774602.7A patent/CN105194765B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1671431A (en) * | 2002-05-27 | 2005-09-21 | Mb因诺瓦蒂翁公司 | Disposable injection device designed to be pre-filled |
| CN102905743A (en) * | 2010-03-25 | 2013-01-30 | 赛诺菲-安万特德国有限公司 | Medicated module with user selection |
| CN102068735A (en) * | 2011-02-25 | 2011-05-25 | 山东威高集团医用高分子制品股份有限公司 | Pre-filled glass syringe |
| CN103930142A (en) * | 2011-10-14 | 2014-07-16 | 安姆根有限公司 | Syringe and method of assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105194765A (en) | 2015-12-30 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200518 Address after: Room 1, No.99 Houde Road, Jinling Town, Zhaoyuan City, Yantai City, Shandong Province Patentee after: Yantai Cheung Kei Medical Equipment Co., Ltd Address before: 265400 Shandong city of Yantai province Zhaoyuan city jinlingzhen Tak Road No. 97 Patentee before: SHANDONG KAILI MEDICAL APPARATUS Co.,Ltd. |
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| TR01 | Transfer of patent right |