CN105194765A - Prefilled syringe - Google Patents
Prefilled syringe Download PDFInfo
- Publication number
- CN105194765A CN105194765A CN201510774602.7A CN201510774602A CN105194765A CN 105194765 A CN105194765 A CN 105194765A CN 201510774602 A CN201510774602 A CN 201510774602A CN 105194765 A CN105194765 A CN 105194765A
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- China
- Prior art keywords
- block
- rotating shaft
- connection block
- puncture needle
- cylindrical shell
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Abstract
The invention belongs to the technical field of medical appliances, and particularly relates to a prefilled syringe. The prefilled syringe comprises a cylinder body, wherein a push rod capable of moving back and forth is arranged in the cylinder body; a seal cap is connected to the front end of the cylinder body; a connecting seat is arranged at the front part of the cylinder body; a passage in which a puncture needle can be accommodated is formed in the connecting seat; a stopper is arranged at one end, close to the medicine cavity inside the cylinder, of the passage, and is connected with a rotating shaft; a sealing holder is connected to the front end of the connecting seat; the sealing holder is arranged in the seal cap; a seal cover is arranged at the front end of the sealing seat; and a needle accommodating cavity is formed in the seal cover. The prefilled syringe is provided with a puncture needle, has the advantage of avoiding contact between the puncture needle and medicinal liquid in storing, and is reliable for sealing.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of pre-encapsulated injector particularly.
Background technology
Drug administration by injection refers to and is injected in vivo by sterile liquid medicine, reaches the object of prevention and therapy disease, and it has, and drug absorption is fast, blood drug level raises rapidly, the dose advantage accurately entered in body.Conventional drug administration by injection mainly contains vein, muscle and subcutaneous injection, and other also comprise lumbar injection, intraarticular, subconjunctival space and epidural injection.
Syringe for human injection successively experienced by four generation product: the first generation is nonexpondable all-glass syringe, at present less use; The second filial generation is disposable aseptic plastic syringe, at present still in generally using, has the advantage that cost is low, easy to use, but also there is the not shortcoming such as acid and alkali-resistance, not recyclable, contaminated environment simultaneously; The third generation is disposable pre-encapsulated injector, just progressively promotes the use of at developed countries and regions at present; Forth generation is nitrogen high pressure needleless injector, is also in the development stage at present.
Pre-encapsulated injector has the following advantages; One, adopt glass and the rubber assembly of high-quality, with medicine, there is the good compatibility, the stability of the medicine packed can be guaranteed; Two, reduce medicine because of the waste stored and the absorption of transfer process causes, especially for the biochemical preparation of costliness, tool is of great significance; Three, repeatedly aspirate after avoiding using diluent, reduce secondary pollution chance; Four, the mode of filling machine quantitative filling medicinal liquid is adopted, more accurate than the manual aspiration medicinal liquid of medical personnel; Five, in injection vessel, directly can indicate medicine bottle title, not easily mistake occur clinically; Six, easy and simple to handle, the clinical middle time than using ampoule to save half, be particularly suitable for Emergency Patients.Because pre-encapsulated injector has storage of pharmaceutical and normal injection two kinds effect simultaneously, and have employed material that is compatible and that have good stability, not only safe and reliable, and compare the mode of traditional " medicine bottle+syringe ", reduce to greatest extent from produce to use in spent artificial and cost, bring perhaps many-sided advantage to pharmacy corporation and Clinical practice, therefore, pre-encapsulated injector adopted by increasing pharmacy corporation at present and be applied to clinical in.
The puncture needle of pre-encapsulated injector selects metal material usually, can react after the medicinal liquid Long Term Contact of pre-embedding in itself and cylindrical shell, easily there is malpractice, in order to avoid the generation of such problem, common solution does not place puncture needle in pre-encapsulated injector, but puncture needle is placed separately, the head again puncture needle being contained in syringe during use completes injection, but there is following problem in this kind of mode: one, due to puncture needle small volume, independent storage and managenent easily causes loss, and need the sealing arranged separately again puncture needle, sterilization and disinfection device, improve production and administration cost, when two, using, in-site installation puncture needle is on syringe, adds operating procedure, and then can extend inject time, use inconvenience.
Summary of the invention
The present invention is to solve the problems of the technologies described above, and when providing one with puncture needle and can avoid storing, puncture needle and medicinal liquid come in contact, seal reliable pre-encapsulated injector.
Technical scheme of the present invention is: a kind of pre-encapsulated injector, comprise cylindrical shell, the push rod that can move forward and backward is provided with in described cylindrical shell, the front end of cylindrical shell is connected with sealing cap, the front portion of described cylindrical shell is provided with Connection Block, the passage holding puncture needle is provided with in described Connection Block, one end near inner barrel medicine chamber on described passage is provided with block, described block is connected with rotating shaft, the front end of described Connection Block is connected with seal receptacle, described seal receptacle is arranged in sealing cap, and the front end of seal receptacle is provided with seal cover, is provided with syringe needle container cavity in described seal cover.
Technical scheme of the present invention also comprises: described block is made up of polypropylene, cyclic olefin polymer or cyclic olefin copolymer.Can not react with medicinal liquid Long Term Contact, stable in properties, can guarantee use safety.
Technical scheme of the present invention also comprises: described block and rotating shaft one-body molded, described rotating shaft is positioned at Connection Block, and rotating shaft is connected with knob, and described knob is arranged on Connection Block shell, and described Connection Block shell is provided with the mark block of opening and closing.Operated according to the instruction of mark block on Connection Block by knob, easy to use and can maloperation be avoided, safe and reliable.
Technical scheme of the present invention also comprises: described block and rotating shaft one-body molded, one end of described rotating shaft is positioned at Connection Block inside, and the other end of rotating shaft is positioned at Connection Block outside, and described Connection Block shell is provided with the mark block of opening and closing.By rotating shaft, operate according to the instruction of mark block on Connection Block, structure is simple, easy to use and can avoid maloperation, safe and reliable.
Technical scheme of the present invention also comprises: described rotating shaft is positioned at Connection Block, and the below of the block of described close block and rotating shaft link is provided with spring.Spring is set below block, can avoids entering medicine intracavity downwards contact with medicinal liquid at transport, storing process peripheral object promotion puncture needle.
Technical scheme of the present invention also comprises: described seal cover is step-like, is provided with seal washer between the wide portion of described seal cover and seal receptacle, and the narrow portion of described seal cover passes the opening of sealing cap inner upper.The reliable medicinal liquid occurred due to pressure change of also can avoiding of sealing leaks.
Technical scheme of the present invention also comprises: the edge of described seal receptacle is provided with connection projection, and the medial wall of described sealing cap is provided with and the connecting groove being connected projection and matching.Sealing is reliable to utilize the cooperation of groove and projection to guarantee.
Technical scheme of the present invention also comprises: described cylindrical shell, sealing cap and seal receptacle are made by polypropylene, cyclic olefin polymer or cyclic olefin copolymer, and described puncture needle is made up of rustless steel, and described seal cover is made up of polyurethane elastomer.Material capability is stablized, it is safe and reliable to guarantee.
The invention has the beneficial effects as follows: first, be designed to the syringe with puncture needle, can avoid because puncture needle small volume, separately storage and managenent easily cause the problem of loss, eliminate the decontaminating apparatus arranging separately and puncture needle is sealed, sterilizes simultaneously, production and administration cost can be reduced, and, eliminate the operating procedure of in-site installation puncture needle, direct injection, easy to use, and the demand of Emergency Patients can be met;
Secondly, in Connection Block, the lower end of puncture needle installation passage arranges block, when transporting or store, metal puncture pin and medicine intracavity medicinal liquid effectively can be isolated, avoid both to contact the potential safety hazard caused that reacts, during use, rotating shaft drives block to rotate clockwise, by medicine chamber and puncture needle channel connection, thus make the medicinal liquid of medicine intracavity be expelled on human body by puncture needle, structure is simple, use is reliable;
Again, arrange the seal receptacle sealed Connection Block and the seal cover sealed puncture needle head again, realize dual-seal in sealing cap, sealing is reliable and can avoid the leakage that occurs due to the change of inside and outside pressure.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is black box schematic diagram of the present invention.
In figure, 1, push rod, 2, cylindrical shell, 21, medicine chamber, 22, Connection Block, 23, rotating shaft, 24, block, 3, sealing cap, 4, puncture needle, 5, seal receptacle, 51, connect projection, 6, seal cover, 61, syringe needle container cavity.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.
A kind of pre-encapsulated injector of the present invention, can will need medicinal liquid (such as coldrex, the antibiotic medicine etc.) fill in advance of injection in needle body, direct injection during use, it compares traditional " medicine bottle+syringe " mode, reduce from produce to use in spent artificial and cost, bring many-sided advantage perhaps to pharmacy corporation and Clinical practice.
As shown in Figure 1, pre-encapsulated injector of the present invention comprises the cylindrical shell 2 built with medicinal liquid, push rod 1 is installed in cylindrical shell 2, medicinal liquid can either be encapsulated in cylindrical shell by this push rod 1, (wherein, one end of puncture needle 4 is installed and is defined as front end) can be moved forward and backward again be expelled in human body from puncture needle complete injection to promote medicinal liquid in cylindrical shell.Be connected with the sealing cap 3 sealed cylindrical shell 2 front end and puncture needle 4 in the front end of cylindrical shell 2, to avoid foreign material in transport, storing process to enter in syringe, blocking pin hole or pollution medicinal liquid, improve safety in utilization.
In order to install puncture needle, Connection Block 22 is provided with in cylindrical shell 2 front portion, the passage holding puncture needle 4 is provided with in Connection Block 22, be designed to the syringe with puncture needle, can avoid because puncture needle small volume, separately storage and managenent easily cause the problem of loss, eliminate the decontaminating apparatus arranging separately and puncture needle is sealed, sterilizes simultaneously, production and administration cost can be reduced, and, eliminate the operating procedure of in-site installation puncture needle, direct injection, easy to use, and the demand of Emergency Patients can be met.
In order to avoid puncture needle contacts the potential safety hazard reacting and cause with medicinal liquid, the one end near the inner medicine chamber 21 of cylindrical shell 2 on the passage installing puncture needle 4 is provided with block 24, and this block 24 is connected with rotating shaft 23 and can rotates under the drive of rotating shaft.The benefit arranging block is, when transporting or store, metal puncture pin and medicine intracavity medicinal liquid effectively can be isolated, and avoids both to contact the potential safety hazard caused that reacts; During use, rotating shaft drives block to rotate clockwise, and by medicine chamber and puncture needle channel connection, thus makes the medicinal liquid of medicine intracavity be expelled on human body by puncture needle, and structure is simple, use is reliable.
In embodiments of the invention one, block 24 and rotating shaft 23 one adult, make by polypropylene, cyclic olefin polymer or cyclic olefin copolymer, itself and medicinal liquid Long Term Contact can not react, and stable in properties can guarantee use safety.This rotating shaft 23 is positioned at Connection Block 22 and is connected with knob, and this knob is arranged on Connection Block 22 shell, and Connection Block 22 shell is provided with the mark block of opening and closing.Operated according to the instruction of mark block on Connection Block by knob, easy to use and can maloperation be avoided, safe and reliable.
In embodiments of the invention two, block 24 and rotating shaft 23 one adult, make by polypropylene, cyclic olefin polymer or cyclic olefin copolymer, itself and medicinal liquid Long Term Contact can not react, and stable in properties can guarantee use safety.One end of this rotating shaft 23 is positioned at Connection Block 22 inside, and the other end of rotating shaft 23 is positioned at Connection Block 22 outside, and Connection Block 22 shell is provided with the mark block of opening and closing.By rotating shaft, operate according to the instruction of mark block on Connection Block, structure is simple, easy to use and can avoid maloperation, safe and reliable.
In embodiments of the invention three, rotating shaft 23 is arranged in Connection Block 22, one end of block 24 is connected with rotating shaft 23, the other end of block 24 is positioned at puncture needle passage, spring is being provided with near block 24 and the below of the block 24 of rotating shaft 23 link, can avoid entering medicine intracavity downwards contact with medicinal liquid at transport, storing process peripheral object promotion puncture needle, improve the security reliability used.
In order to improve sealing, the front end of Connection Block 22 is connected with seal receptacle 5, and sealing seat 5 is arranged in sealing cap 3, and the front end of seal receptacle 5 is provided with seal cover 6, is provided with syringe needle container cavity 61 in sealing lid 6.In sealing cap 3, arrange the seal receptacle 5 sealed Connection Block 22 and the seal cover 6 sealed puncture needle 4 head again, can realize dual-seal, sealing is reliable and can avoid due to the change of inside and outside pressure and leak.
Particularly, the edge of seal receptacle 5 is provided with and connects projection 51, and correspondingly, the medial wall of sealing cap 3 is provided with and the connecting groove being connected projection 51 and matching, and sealing is reliable to utilize the cooperation of groove and projection to guarantee.Seal cover 6 designs in step-like, is provided with seal washer between the wide portion of sealing lid 6 and seal receptacle 5, and the narrow portion of seal cover 6 passes the opening of sealing cap 3 inner upper, and it can guarantee seal reliable and the medicinal liquid due to pressure change generation can be avoided to leak.
The cylindrical shell 2 of pre-encapsulated injector of the present invention, sealing cap 3, seal receptacle 5, block 24 are made by polypropylene, cyclic olefin polymer or cyclic olefin copolymer, puncture needle 4 is made up of rustless steel, seal cover 6 is made up of polyurethane elastomer, the Material texture stable performance chosen, can guarantee safe and reliable.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (8)
1. a pre-encapsulated injector, comprise cylindrical shell (2), the push rod (1) that can move forward and backward is provided with in described cylindrical shell (2), the front end of cylindrical shell (2) is connected with sealing cap (3), it is characterized in that: the front portion of described cylindrical shell (2) is provided with Connection Block (22), the passage holding puncture needle (4) is provided with in described Connection Block (22), one end near the inner medicine chamber (21) of cylindrical shell (2) on described passage is provided with block (24), described block (24) is connected with rotating shaft (23), the front end of described Connection Block (22) is connected with seal receptacle (5), described seal receptacle (5) is arranged in sealing cap (3), the front end of seal receptacle (5) is provided with seal cover (6), syringe needle container cavity (61) is provided with in described seal cover (6).
2. a kind of pre-encapsulated injector as claimed in claim 1, is characterized in that: described block (24) is made up of polypropylene, cyclic olefin polymer or cyclic olefin copolymer.
3. a kind of pre-encapsulated injector as claimed in claim 2, it is characterized in that: described block (24) is one-body molded with rotating shaft (23), described rotating shaft (23) is positioned at Connection Block (22), rotating shaft (23) is connected with knob, described knob is arranged on Connection Block (22) shell, and described Connection Block (22) shell is provided with the mark block of opening and closing.
4. a kind of pre-encapsulated injector as claimed in claim 2, it is characterized in that: described block (24) is one-body molded with rotating shaft (23), one end of described rotating shaft (23) is positioned at Connection Block (22) inside, the other end of rotating shaft (23) is positioned at Connection Block (22) outside, and described Connection Block (22) shell is provided with the mark block of opening and closing.
5. a kind of pre-encapsulated injector as claimed in claim 2, is characterized in that: described rotating shaft (23) is positioned at Connection Block (22), and described close block (24) is provided with spring with the below of the block (24) of rotating shaft (23) link.
6. a kind of pre-encapsulated injector as described in claim as arbitrary in claim 3 to 5, it is characterized in that: described seal cover (6) is in step-like, be provided with seal washer between the wide portion of described seal cover (6) and seal receptacle (5), the narrow portion of described seal cover (6) passes the opening of sealing cap (3) inner upper.
7. a kind of pre-encapsulated injector as claimed in claim 6, is characterized in that: the edge of described seal receptacle (5) is provided with and connects projection (51), and the medial wall of described sealing cap (3) is provided with and the connecting groove being connected projection (51) and matching.
8. a kind of pre-encapsulated injector as claimed in claim 2, it is characterized in that: described cylindrical shell (2), sealing cap (3) and seal receptacle (5) are made by polypropylene, cyclic olefin polymer or cyclic olefin copolymer, described puncture needle (4) is made up of rustless steel, and described seal cover (6) is made up 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 true CN105194765A (en) | 2015-12-30 |
| CN105194765B CN105194765B (en) | 2018-05-01 |
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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 |
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| 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 | Injector 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 | Injector and method of assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105194765B (en) | 2018-05-01 |
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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 |