CN202844260U - Injection mixing pre-filling and pre-sealing injector structure - Google Patents
Injection mixing pre-filling and pre-sealing injector structure Download PDFInfo
- Publication number
- CN202844260U CN202844260U CN 201220560565 CN201220560565U CN202844260U CN 202844260 U CN202844260 U CN 202844260U CN 201220560565 CN201220560565 CN 201220560565 CN 201220560565 U CN201220560565 U CN 201220560565U CN 202844260 U CN202844260 U CN 202844260U
- Authority
- CN
- China
- Prior art keywords
- piston
- cavity
- upper piston
- overcoat
- lower piston
- 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
Links
Images
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides an injection mixing pre-filling and pre-sealing injector structure which is of simple structure, simple filling of solute and solvent, low production cost and easy realization of mass production. The injection mixing pre-filling and pre-sealing injector structure comprises a core bar, a sleeve and pistons. The injection mixing pre-filling and pre-sealing injector structure is characterized in that the pistons are divided into two pistons of an upper piston and a lower piston, the sleeve is divided into two parts of a front portion smaller-caliber cavity and a back portion bigger-caliber cavity, the upper piston is sleeved in the lower portion of the core bar, a torus of the upper piston is closely attached to an inner wall of the back portion bigger-caliber cavity, the upper piston is connected with the lower piston through a connecting bar, a torus of the lower piston is closely attached to an inner wall of the front portion smaller-caliber cavity, a circle diameter of the lower piston is smaller than a inner diameter of the back portion bigger-caliber cavity.
Description
Technical field
This utility model relates to the technical field of syringe construction, is specially the mixed medicine pre-encapsulated injector structure of a kind of injectable powder.
Background technology
To extract solvent (water for injection etc.) out with syringe first in traditional injector operations process, again syringe needle is penetrated solute bottle (injectable powder or aqueous injection), then release solvent and mix with solute and dissolve, extract again at last admixing medical solutions out and could inject or to dosing in the infusion bottle human body in the syringe.This operational approach not only program is complicated, and nurse's amount of labour is large, and medicinal liquid will through shifting several times, pollute easily.The most important thing is to occur easily causing the generation of malpractice because of wrong medicine, until jeopardize patient's life security.
Existing pre-encapsulated injector, they all are to be potted in the syringe after medicine is prepared.Because this pre-encapsulated injector is produced patient's use there is the regular hour, because mix in syringe for a long time after solvent and solute mix and cause solvent and solvent hybrid reaction or solvent and solute hybrid reaction or solute and solute hybrid reaction or solute and solvent qualitative change, this also just reduces the side effect that drug effect also has medicine simultaneously.
Existing injectable powder mixes the medicine pre-encapsulated injector, and their structure is very complicated, solute and solvent fill trouble, and mixed drug anesthesia is tired of that production cost is very high before the injection, is difficult to realize mass production.
Summary of the invention
For the problems referred to above, this utility model provides a kind of injectable powder to mix medicine pre-encapsulated injector structure, and it is simple in structure, and solute and solvent fill are simple, and production cost is low, easily realizes mass production.
A kind of injectable powder mixes medicine pre-encapsulated injector structure, its technical scheme is such: it comprises core bar, overcoat, piston, it is characterized in that: described piston has two, be respectively upper piston, lower piston, described overcoat is divided into two parts: anterior small-bore cavity, rear portion heavy caliber cavity, the bottom of described core bar is set with described upper piston, the anchor ring of described upper piston is close to the inwall of described rear portion heavy caliber cavity, described upper piston connects lower piston by connecting rod, the anchor ring of described lower piston is close to the inwall of described anterior small-bore cavity, the circle diameter of described lower piston is less than the internal diameter of described rear portion heavy caliber cavity, the formed cavity of the small-bore cavity inner wall of the lower surface of described lower piston and described front portion is the molten chamber of solute, the upper surface of described lower piston, the lower surface of upper piston, and the formed cavity of the inwall of overcoat between the two is the molten chamber of solvent, the tail end inwall of described overcoat is provided with spacing ring, the front end place of portalling of the described overcoat stopper that has been threaded.
It is further characterized in that: described upper piston is threaded connection the lower end of described core bar.
After using structure of the present utility model, with the solute fill in the molten intracavity of solute, with the solvent fill in the molten intracavity of solvent, so just form the mixed medicine pre-encapsulated injector of injectable powder, packaging sterilizing is waited to go on the market, when needing to use, the pulling core bar, upper piston is pulled to the position of the spacing ring of overcoat, and the effect of spacing ring is to prevent from that upper piston is pulled when the pulling piston to surpass the position that limits that lower piston also was pulled mobile backward when upper piston was pulled; Be pulled to the position of spacing ring when upper piston, lower piston also enters in the heavy caliber cavity of rear portion, lower piston and rear portion heavy caliber cavity inner wall form the slit, the molten chamber of solvent, the molten chamber of solute is interconnected by this slit, the solvent of the molten intracavity of solvent enters into the molten chamber of solute smoothly, core bar pushes lower piston in the inwall of anterior small-bore cavity of overcoat afterwards, the mixed medicine pre-encapsulated injector of vibrations makes solvent and solute at mixed medicine pre-encapsulated injector mix homogeneously, spin off stopper, promote the drain gas in the molten chamber of solute of core bar, the injector is injected at once, throw away after the injection, it is simple in structure, and solute and solvent fill are simple at once, production cost is low, easily realizes mass production.
Description of drawings
Fig. 1 is front view sectional structure sketch map of the present utility model.
The specific embodiment
See Fig. 1, it comprises core bar 1, overcoat 2, piston, piston has two, be respectively upper piston 3, lower piston 4, overcoat is divided into two parts: anterior small-bore cavity 5, rear portion heavy caliber cavity 6, the bottom of core bar 1 is set with upper piston 3, the anchor ring of upper piston 3 is close to the inwall of rear portion heavy caliber cavity 6, upper piston 3 connects lower piston 4 by connecting rod 7, the anchor ring of lower piston 4 is close to the inwall of anterior small-bore cavity 5, the circle diameter of lower piston 4 is less than the internal diameter of rear portion heavy caliber cavity 6, the lower surface of lower piston 4 and the formed cavity of anterior small-bore cavity 5 inwalls are the molten chamber 8 of solute, the upper surface of lower piston 4, the lower surface of upper piston 3, and the formed cavity of the inwall of overcoat between the two 2 is the molten chamber 9 of solvent, and the tail end inwall of overcoat 2 is provided with spacing ring 10.The front end of overcoat 2 place's 11 stoppers 12 that have been threaded that portal.Upper piston 3 is threaded connection the lower end of core bar 1.
Claims (2)
1. an injectable powder mixes medicine pre-encapsulated injector structure, it comprises core bar, overcoat, piston, it is characterized in that: described piston has two, be respectively upper piston, lower piston, described overcoat is divided into two parts: anterior small-bore cavity, rear portion heavy caliber cavity, the bottom of described core bar is set with described upper piston, the anchor ring of described upper piston is close to the inwall of described rear portion heavy caliber cavity, described upper piston connects lower piston by connecting rod, the anchor ring of described lower piston is close to the inwall of described anterior small-bore cavity, the circle diameter of described lower piston is less than the internal diameter of described rear portion heavy caliber cavity, the formed cavity of the small-bore cavity inner wall of the lower surface of described lower piston and described front portion is the molten chamber of solute, the upper surface of described lower piston, the lower surface of upper piston, and the formed cavity of the inwall of overcoat between the two is the molten chamber of solvent, the tail end inwall of described overcoat is provided with spacing ring, the front end place of portalling of the described overcoat stopper that has been threaded.
2. a kind of injectable powder according to claim 1 mixes medicine pre-encapsulated injector structure, and it is characterized in that: described upper piston is threaded connection the lower end of described core bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220560565 CN202844260U (en) | 2012-10-30 | 2012-10-30 | Injection mixing pre-filling and pre-sealing injector structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220560565 CN202844260U (en) | 2012-10-30 | 2012-10-30 | Injection mixing pre-filling and pre-sealing injector structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202844260U true CN202844260U (en) | 2013-04-03 |
Family
ID=47975506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220560565 Expired - Fee Related CN202844260U (en) | 2012-10-30 | 2012-10-30 | Injection mixing pre-filling and pre-sealing injector structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202844260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102940921A (en) * | 2012-10-30 | 2013-02-27 | 无锡耐思生物科技有限公司 | Powder-injection mixing pre-filled and sealed injector structure |
| WO2018227838A1 (en) * | 2017-06-13 | 2018-12-20 | 江苏奥康尼医疗科技发展有限公司 | Cartilage repair instrument |
-
2012
- 2012-10-30 CN CN 201220560565 patent/CN202844260U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102940921A (en) * | 2012-10-30 | 2013-02-27 | 无锡耐思生物科技有限公司 | Powder-injection mixing pre-filled and sealed injector structure |
| WO2018227838A1 (en) * | 2017-06-13 | 2018-12-20 | 江苏奥康尼医疗科技发展有限公司 | Cartilage repair instrument |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102274087B (en) | Fixed-quantity injector | |
| CN201283143Y (en) | Medicament injection apparatus for chemotherapy | |
| CN103285454A (en) | Double-chamber multifunctional pre-encapsulation injector | |
| CN202844260U (en) | Injection mixing pre-filling and pre-sealing injector structure | |
| CN202844259U (en) | Injection mixing pre-filling and pre-sealing injector | |
| CN102935255B (en) | Pre-filling-and-sealing syringe structure for mixing | |
| CN102940920B (en) | Mixing pre-filled and sealed injector | |
| CN202982810U (en) | Structure of mixed drug pre-filled syringe | |
| CN202844257U (en) | Mixed medicine pre-filling syringe | |
| CN202844258U (en) | Pre-filled injector for blending drugs | |
| CN203235096U (en) | Combined type injector | |
| CN202982811U (en) | Pre-filling syringe structure for medicine mixing | |
| CN102921072A (en) | Powder injection mixing and pre-encapsulating injector | |
| CN202982796U (en) | Structure of mixed drug pre-filled syringe | |
| CN102940921A (en) | Powder-injection mixing pre-filled and sealed injector structure | |
| CN102205155A (en) | Doser for transfusion | |
| CN203075364U (en) | Injection syringe | |
| CN201200683Y (en) | Powder injection sterilized injection syringe for mixing and pre-encapsulating medicament | |
| CN102921071A (en) | Mixing and prefilling syringe structure | |
| CN102940922B (en) | Mixing pre-filled and sealed injector | |
| CN202844253U (en) | Disposable pre-filled injector | |
| CN102961803A (en) | Disposable prefilled syringe | |
| CN102940918A (en) | Mixing pre-filled and sealed injector structure | |
| CN102921070B (en) | Combined type injection syringe | |
| CN202490266U (en) | Double-chamber multifunctional prefilled injector |
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: 20130403 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |