CN2875468Y - Safety injector - Google Patents
Safety injector Download PDFInfo
- Publication number
- CN2875468Y CN2875468Y CN 200620008656 CN200620008656U CN2875468Y CN 2875468 Y CN2875468 Y CN 2875468Y CN 200620008656 CN200620008656 CN 200620008656 CN 200620008656 U CN200620008656 U CN 200620008656U CN 2875468 Y CN2875468 Y CN 2875468Y
- Authority
- CN
- China
- Prior art keywords
- needle stand
- needle
- stage clip
- syringe
- syringe cylinder
- 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 - Lifetime
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 208000005189 Embolism Diseases 0.000 claims description 30
- 208000001435 Thromboembolism Diseases 0.000 claims description 30
- 238000002347 injection Methods 0.000 claims description 23
- 239000007924 injection Substances 0.000 claims description 23
- 230000037431 insertion Effects 0.000 claims description 14
- 238000003780 insertion Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 241000967821 Barbus trevelyani Species 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 230000001141 propulsive effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229960005486 vaccine Drugs 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000000642 iatrogenic effect Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a safe syringe, which comprises a protective cover, a syringe needle tube, a syringe needle cylinder and a cylindrical push rod, wherein, the cylindrical push rod is inserted into a seal rubber ring which is arranged at one end of the inner part of the syringe needle cylinder and is closely combined with the inner wall of the syringe needle cylinder, and the utility model is provided with a piston that can be retracted to the inner part of the cylindrical push rod under the reverse thrust, while the other end extends to the outside of the syringe needle cylinder, the utility model is also provided with a push end, at the front end of the syringe needle cylinder is sealed and fixed with a needle base cover, the syringe needle tube is fixed on a needle base directly, the needle base is sealedly combined with the inner part of the needle base cover through a seal ring, at the front end of the needle base cover is fixedly provided with a compress-spring plug, between the compress-spring plug and the needle base is provided with a compress-spring, the utility model is characterized in that: between the needle base cover and the compress-spring plug is provided with at least one group of fixed reversed hooks which can lock with each other. The syringe has the advantages of that, the use is more secure, and fastness and the assemblage is more convenient.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, more particularly, and the safety injector of using when relating to liquid medicine injection and vaccine in a kind of medicine and hygiene fields.
Background technology
Disposable in recent years asepsis injector is widely used when liquid medicine injection and vaccine, for the iatrogenic infectious disease of control, avoid cross infection etc. to play more positive effect.But, the disposable sterilized injector that uses in use also has defective at present: the promptly present disposable sterilized injector (comprising injection needle interior) that uses, after use, still remain intact, this takes advantage of the occasion to reclaim for some lawless persons and provides convenience, promptly, sold again after the repacking, caused the cross infection of communicate illness cleaning a little with depleted disposable syringe after crossing, brought the factor of being absolutely unsafe to the patient, very difficult realization disposable use truly.
Applicant in this utility model once designed the safety injector that a kind of syringe needle can bounce back automatically for this reason, and this safety injector is after having injected medicinal liquid, and injection needle can enter barrel type push bar inside automatically, had to prevent the function that is repeated to use.But this syringe in use also has certain hidden danger, as shown in Figure 1, injection needle 1 is fixed in the needle stand 2, needle stand 2 is positioned on the needle stand cover 4 by O RunddichtringO 6, being provided with the compression spring 8 that needle stand 2 and injection needle 1 can be pushed barrel type push bar inside at needle stand 2 between stage clip thromboembolism 3, is stair-stepping tight fit between needle stand cover 4 and the stage clip thromboembolism 3.Owing between needle stand cover 4 and stage clip thromboembolism 3, only is connected, so compresses spring 8 and might destroy this connection by tight fit, separate even stage clip thromboembolism 3 overlaps 4 with needle stand, thereby injection needle 1 is flown out, have certain danger.And owing to is connected, and there is the problem that makes things convenient for inadequately and have hidden danger during installation of installing between needle stand cover 4 and the stage clip thromboembolism 3 by tight fit.
Summary of the invention
The purpose of this utility model is to provide a kind of safety injector, and this syringe is realized using more safety and assembled convenient problem by the structure of improving needle stand cover and stage clip thromboembolism.
Safety injector in this utility model includes protective sleeve; injection needle; syringe cylinder; barrel type push bar; the end that described barrel type push bar extends into described syringe cylinder inside is set with the sealed rubber ring of combining closely with the inwall of syringe cylinder; and be provided with a piston that under the propulsive thrust effect, can bounce back to barrel type push bar inside; the other end stretches out the outside of described syringe cylinder; and be provided with one and push away end; the forward end seal of described syringe cylinder is fixed with a needle stand cover; described injection needle directly is fixed on the needle stand; this needle stand combines with described needle stand cover inner sealing by means of sealing ring; front end at described needle stand cover is set with a stage clip thromboembolism; between this stage clip thromboembolism and needle stand, be provided with a stage clip, between described needle stand cover and stage clip thromboembolism, be provided with one group of barb that can be fastened mutually at least.
The lateral border that described needle stand is enclosed within its top is equipped with a circle barb.
Described stage clip thromboembolism include insert the inner insertion section of described needle stand cover and ring be located at the outside, described insertion section can with the fixed location division of described needle stand cover lateral border barb fastener, described insertion section and location division are integrally formed, and are useful on the through hole that places described needle stand and injection needle at described insertion section intermediate formation.
At least be provided with a suitable sheet on the described location division, be provided with the clasp that can hook together with described barb in suitable sheet inside.
The top of described through hole is provided with the flange that is used to fix described spring toward in.
Syringe in this utility model is owing to the structure of having improved between needle stand cover and the stage clip thromboembolism, no matter when the stage clip thromboembolism can not broken away from the needle stand cover, has the safer advantage of use, and, make that the needle stand cover is very convenient with the assembling of stage clip thromboembolism owing to adopt fastener structure.
Description of drawings
Fig. 1 is the part cross-sectional schematic of existing safe disposable syringe;
Fig. 2 is the cross-sectional schematic of syringe in this utility model;
Fig. 3 is the schematic side view of stage clip thromboembolism in this utility model;
Fig. 4 is the schematic top plan view of stage clip thromboembolism in this utility model;
Fig. 5 is the cross-sectional schematic of the thromboembolism of stage clip shown in Fig. 4 along the A-A line;
Fig. 6 is the cross-sectional schematic of the thromboembolism of stage clip shown in Fig. 4 along the B-B line;
Fig. 7 is stage clip thromboembolism and the fashionable cross-sectional schematic of needle stand noose in this utility model.
The specific embodiment
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 2, the syringe in this utility model includes injection needle 10, is used to protect protective sleeve 20, syringe cylinder 11 and the barrel type push bar 12 of injection needle 10.
One end of barrel type push bar 12 stretches into syringe cylinder 11 inside, the other end extends the outside of syringe cylinder 11, be provided with one at an end that extends syringe cylinder 11 and push away end 17, stretching out the intrinsic sealed rubber ring 18 of an end periphery sealing shroud of syringe cylinder 11 inside, sealing glue ring 18 can move and can prevent that medicinal liquid from refluxing in that syringe cylinder 11 is inner under the promotion of push rod 12, is provided with a piston 19 that can bounce back to barrel type push bar 12 inside with the retraction of injection needle 10 at the inner tubal wall front end.
As shown in Figure 7, needle stand cover 13 is the cylinder of a hollow, be equipped with a circle barb 130 at cylindrical top outer edge, be provided with in cylindrical middle part outer rim and be used for and fixed flange of syringe cylinder 11 forward end seal or groove 131, be provided with flange (not shown) with O RunddichtringO 16 sealing and fixing at cylinder bottom inner edge, because this part-structure is a prior art, also it doesn't matter with goal of the invention of the present utility model, therefore explanation no longer separately, but, can under without any creative work, finish for those skilled in the art.
Extremely shown in Figure 7 as Fig. 3, stage clip thromboembolism 14 includes the insertion needle stand and overlaps the insertion section 140 of 13 inside and overlap the bonded location division 141 of 13 outer rim barbs, 130 fasteners with needle stand, wherein insertion section 140 is integrally formed with location division 141, and one of 140 intermediate formation are used to penetrate the through hole 142 of needle stand 21 and injection needle 10 in the insertion section, flange 143 with fixing compression spring 15 is set in the inboard of these through hole 142 front ends, utilize this flange 143 can be to compression spring 15, needle stand 21, sealing ring 16 positions with fixing.146 be provided with three and be the angular distribution suitable sheet 144 of 120 degree by slotting on the location division 141, and this suitable sheet 144 towards the insertion section 140 the integrally formed fastener 145 of a side.When stage clip thromboembolism 14 combines with needle stand cover 13, insertion section 140 is inserted the inside of needle stand cover 13, and location division 141 is by the outside of inserting needle stand cover 13, make by means of the elasticity of suitable sheet 144 that barb 130 fastens mutually on fastener 145 and the needle stand cover 13, have firm, safe advantage, and install very simple.
The logical structure of improving stage clip thromboembolism 14 and needle stand cover 13 of safety injector in this utility model, thereby improved in the existing product between stage clip thromboembolism 14 and the needle stand cover 13 by friction tight annexation, make injection needle, needle stand cover, stage clip thromboembolism, and the compression spring between installation more convenient, and more firmly and safety.
Claims (5)
1. safety injector; include protective sleeve; injection needle; syringe cylinder; barrel type push bar; the end that described barrel type push bar stretches into described syringe cylinder inside is set with the sealed rubber ring of combining closely with the inwall of syringe cylinder; and be provided with a piston that under the propulsive thrust effect, can bounce back to barrel type push bar inside; the other end stretches out the outside of described syringe cylinder; and be provided with one and push away end; the forward end seal of described syringe cylinder is fixed with a needle stand cover; described injection needle directly is fixed on the needle stand; this needle stand combines with described needle stand cover inner sealing by means of sealing ring; front end at described needle stand cover is set with a stage clip thromboembolism; between this stage clip thromboembolism and needle stand, be provided with a stage clip, it is characterized in that: between described needle stand cover and stage clip thromboembolism, be provided with one group of barb that can be fastened mutually at least.
2. according to the safety injector described in the claim 1, it is characterized in that: the lateral border that described needle stand is enclosed within its top is equipped with a circle barb.
3. according to the safety injector described in the claim 2, it is characterized in that: described stage clip thromboembolism include insert the inner insertion section of described needle stand cover and ring be located at the outside, described insertion section can with the fixed location division of described needle stand cover lateral border barb fastener, described insertion section and location division are integrally formed, and are useful on the through hole that places described needle stand and injection needle at described insertion section intermediate formation.
4. according to the safety injector described in the claim 3, it is characterized in that: be provided with a suitable sheet on the described location division at least, be provided with the clasp that can hook together with described barb in suitable sheet inside.
5. according to the safety injector described in claim 3 or 4, it is characterized in that: the top of described through hole is provided with the flange that is used to fix described spring toward in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620008656 CN2875468Y (en) | 2006-03-08 | 2006-03-08 | Safety injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620008656 CN2875468Y (en) | 2006-03-08 | 2006-03-08 | Safety injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2875468Y true CN2875468Y (en) | 2007-03-07 |
Family
ID=37818712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620008656 Expired - Lifetime CN2875468Y (en) | 2006-03-08 | 2006-03-08 | Safety injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2875468Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010088845A1 (en) * | 2009-02-08 | 2010-08-12 | 浙江康康医疗器械有限公司 | Disposable safety syringe with automatically retractable needle head |
-
2006
- 2006-03-08 CN CN 200620008656 patent/CN2875468Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010088845A1 (en) * | 2009-02-08 | 2010-08-12 | 浙江康康医疗器械有限公司 | Disposable safety syringe with automatically retractable needle head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENJIANG CITY JINFENG MEDICAL TECHNOLOGY CO., LT Free format text: FORMER OWNER: XU HAOHUA Effective date: 20080314 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080314 Address after: Jiangsu province Zhenjiang City Jingkou Technology Industrial Park, zip code: 212006 Patentee after: Zhenjiang Jinfeng Medical Technology Co., Ltd. Address before: Room three, unit 40, building 201, Fenghuang village, Jiangsu, Danyang Province, 212300 Patentee before: Xu Haohua |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING JINGJING MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: ZHEJIANG JINFENG MEDICAL TECHNOLOGY CO., LTD. Effective date: 20130805 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 212006 ZHENJIANG, JIANGSU PROVINCE TO: 100176 DAXING, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130805 Address after: 100176 No. 11 Wanyuan street, Beijing economic and Technological Development Zone, Beijing Patentee after: Jingjing Medical Equipment Co., Ltd., Beijing Address before: 212006 Zhenjiang City, Jiangsu province Jingkou Technology Industrial Park Patentee before: Zhenjiang Jinfeng Medical Technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Jiang Wenjun Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070307 |
|
| EXPY | Termination of patent right or utility model |