CN205073415U - Injector - Google Patents
Injector Download PDFInfo
- Publication number
- CN205073415U CN205073415U CN201520799259.7U CN201520799259U CN205073415U CN 205073415 U CN205073415 U CN 205073415U CN 201520799259 U CN201520799259 U CN 201520799259U CN 205073415 U CN205073415 U CN 205073415U
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- CN
- China
- Prior art keywords
- piston
- syringe
- injector
- crown
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides an injector's technical scheme, this scheme includes injector barrel, piston rod and piston, the injector head is provided with syringe needle portion, the injector afterbody is provided with the portion of gripping, the piston is installed on the piston rod, piston and piston rod are installed in the injector barrel, the piston comprises piston crown, hinge joint pole and piston afterbody, the circumference of piston afterbody is provided with the arch of wave type, and the bellied diameter of this wave type equals with the diameter of injector barrel, the piston crown is the protruding form of arc, and the maximum diameter of this piston crown is greater than the diameter of hinge joint pole. The utility model discloses an injector can inject that patient is internal, to reduce the liquid medicine extravagant with the liquid medicine is whole.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to a kind of syringe.
Background technology
In existing field of medical technology, a lot of medicament is to patient by injector delivery; The order of severity of general patient is different, also different to the consumption of patient injection; Owing to giving the consumption of the medicament of patient injection general all fewer, existing syringe is after injection completes, and the piston due to syringe cannot enter the needle section of syringe, so can leave a certain amount of insecticide liquid in the needle section of syringe; Owing to giving the pharmaceutical quantities of patient injection fewer, add after injection completes, the residual medicinal liquid in syringe, so medicinal liquid can not all be expelled in patient body, affects the healing cycle of disease, also add the medical cost of patient.This is the deficiencies in the prior art.
Summary of the invention
Technical problem to be solved in the utility model is exactly for the deficiency existing for prior art, and provides a kind of syringe that medicinal liquid all can be expelled in patient body, reduce liquid waste.
This programme is achieved by the following technical measures: syringe of the present utility model, comprises injector cartridge, piston rod and piston, and described injector head is provided with needle section, and described syringe afterbody is provided with grip part; Described piston is installed on the piston rod, and described piston and piston rod are arranged in injector cartridge; Described piston is made up of piston crown, piston brace rod and piston tail; The circumference of described piston tail is provided with the projection of undaform, the diameter of this undaform projection and the equal diameters of injector cartridge; Due to the diameter of undaform projection and the equal diameters of injector cartridge, the sealing of syringe can be ensured, be conducive to injection process and easily complete; The curved convex shape of described piston crown, the maximum gauge of this piston crown is greater than the diameter of piston brace rod.Due to piston by piston crown, piston brace rod and piston tail three part form, namely on the piston basis of existing syringe, piston crown and piston brace rod is provided with, add the length of piston, be conducive to remaining in the injecting liquid drug of syringe needle head in patient body, be arranged to arc convex shape at piston crown in addition, the sealing of needle section can be ensured, be more conducive to medicinal liquid and all enter in patient body, the waste of medicinal liquid can be decreased, reduce the medical cost of patient.
Syringe of the present utility model, it improves further in the maximum gauge of described piston crown and the needle section equal diameters of syringe.Due to the curved convex shape of piston crown, its maximum gauge is arranged to the needle section equal diameters with syringe, namely ensures that piston crown and piston brace rod enter the needle section of syringe, reduce the waste of medicinal liquid further.
Syringe of the present utility model, its improve further in: the length of described piston brace rod is the 1/3-2/3 of the needle section length of syringe.Although piston brace rod can increase the length of piston, but piston brace rod can not be oversize, otherwise the promotion of piston rod will be affected, the 1/3-2/3 of the needle section length length of piston brace rod being set to syringe is found by research, in above-mentioned scope, piston rod promotes smooth and easy, and whole medicinal liquid can be advanced in patient body.
Syringe of the present utility model, its improve further in: the length of described piston brace rod is 1/2 of syringe needle head length degree.Piston brace rod is set to 1/2 of the needle section length of syringe, not only piston rod promotes smooth and easy, and piston crown can enter needle section very accurately, can ensure the sealing of needle section, more most medicinal liquid can be advanced in patient body.
Syringe of the present utility model, its improve further in: one end of described injector cartridge is provided with limited impression, and this limited impression is formed by elastomeric material manufacture.Being separated of injector cartridge and piston rod can be prevented by arranging limited impression.
Syringe of the present utility model, its improve further in: described piston crown, piston brace rod and piston tail are structure as a whole, and are formed by elastomeric material manufacture.Piston crown, piston brace rod and piston tail are set to integrative-structure, and sealing is installed simple, and good seal performance.
The beneficial effect of this programme can be learnt according to describing of such scheme, due in this scenario by piston is arranged to piston crown, piston brace rod and piston tail become, add the length of piston, be conducive to remaining in the injecting liquid drug of syringe needle head in patient body, be arranged to arc convex shape at piston crown in addition be more conducive to medicinal liquid and all enter in patient body, the waste of medicinal liquid can be decreased, reduce the medical cost of patient.In addition, the length of piston brace rod is arranged to 1/2 of syringe needle head length degree.Not only piston rod promotes smooth and easy, and piston crown can enter needle section very accurately, and most medicinal liquid can be advanced in patient body.As can be seen here, this utility model compared with prior art, has substantive distinguishing features and progress, and its beneficial effect implemented also is apparent.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model detailed description of the invention.
In figure, 1-injector cartridge; 11-needle section; 12-limited impression; 13-grip part; 2-piston rod; 21-piston tail; 22-piston brace rod; 23-piston crown.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, below by a detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Can be found out by accompanying drawing, the syringe of this programme, comprise injector cartridge 1, piston rod 2 and piston, described injector head is provided with needle section 11, and described syringe afterbody is provided with grip part 13; Described piston is arranged on piston rod 2, and described piston and piston rod 2 are arranged in injector cartridge 1; Described piston is made up of piston crown 23, piston brace rod 22 and piston tail 21; The circumference of described piston tail 21 is provided with the projection of undaform, the diameter of this undaform projection and the equal diameters of injector cartridge 1; The curved convex shape of described piston crown 23, the maximum gauge of this piston crown 23 is greater than the diameter of piston brace rod 22.The maximum gauge of described piston crown 23 and needle section 11 equal diameters of syringe.The length of described piston brace rod 22 is 1/3-2/3 of needle section 11 length of syringe.Scheme as optimum is the length of piston brace rod 22 is 1/2 of syringe needle head length degree.One end of described injector cartridge is provided with limited impression 12, and this limited impression 12 is formed by elastomeric material manufacture.Described piston crown, piston brace rod and piston tail are structure as a whole, and are formed by elastomeric material manufacture.
Due in this scenario by piston is arranged to piston crown, piston brace rod and piston tail become, add the length of piston, be conducive to remaining in the injecting liquid drug of syringe needle head in patient body, be arranged to arc convex shape at piston crown in addition be more conducive to medicinal liquid and all enter in patient body, the waste of medicinal liquid can be decreased, reduce the medical cost of patient.In addition, the length of piston brace rod is arranged to 1/2 of syringe needle head length degree.Not only piston rod promotes smooth and easy, and piston crown can enter needle section very accurately, and most medicinal liquid can be advanced in patient body.As can be seen here, this utility model compared with prior art, has substantive distinguishing features and progress, and its beneficial effect implemented also is apparent.
This utility model can pass through existing techniques in realizing without the technical characteristic described, and does not repeat them here.Certainly; above-mentioned explanation is not to restriction of the present utility model; this utility model is also not limited in above-mentioned citing, the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (6)
1. a syringe, comprises injector cartridge, piston rod and piston, and described injector head is provided with needle section, and described syringe afterbody is provided with grip part; It is characterized in that: described piston is installed on the piston rod, and described piston and piston rod are arranged in injector cartridge; Described piston is made up of piston crown, piston brace rod and piston tail; The circumference of described piston tail is provided with the projection of undaform, the diameter of this undaform projection and the equal diameters of injector cartridge; The curved convex shape of described piston crown, the maximum gauge of this piston crown is greater than the diameter of piston brace rod.
2. syringe according to claim 1, is characterized in that: the maximum gauge of described piston crown and the needle section equal diameters of syringe.
3. syringe according to claim 2, is characterized in that: the length of described piston brace rod is the 1/3-2/3 of the needle section length of syringe.
4. syringe according to claim 3, is characterized in that: the length of described piston brace rod is 1/2 of syringe needle head length degree.
5. syringe according to claim 4, is characterized in that: one end of described injector cartridge is provided with limited impression, and this limited impression is formed by elastomeric material manufacture.
6. syringe according to claim 5, is characterized in that: described piston crown, piston brace rod and piston tail are structure as a whole, and is formed by elastomeric material manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520799259.7U CN205073415U (en) | 2015-10-16 | 2015-10-16 | Injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520799259.7U CN205073415U (en) | 2015-10-16 | 2015-10-16 | Injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205073415U true CN205073415U (en) | 2016-03-09 |
Family
ID=55425862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520799259.7U Expired - Fee Related CN205073415U (en) | 2015-10-16 | 2015-10-16 | Injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205073415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107875484A (en) * | 2017-11-27 | 2018-04-06 | 高玉霞 | A kind of syringe for reducing decoction residual volume |
| CN113134134A (en) * | 2021-03-31 | 2021-07-20 | 深圳安特医疗股份有限公司 | Vaccine syringe |
-
2015
- 2015-10-16 CN CN201520799259.7U patent/CN205073415U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107875484A (en) * | 2017-11-27 | 2018-04-06 | 高玉霞 | A kind of syringe for reducing decoction residual volume |
| CN113134134A (en) * | 2021-03-31 | 2021-07-20 | 深圳安特医疗股份有限公司 | Vaccine syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20191016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |