CN202982796U - Structure of mixed drug pre-filled syringe - Google Patents
Structure of mixed drug pre-filled syringe Download PDFInfo
- Publication number
- CN202982796U CN202982796U CN 201220560070 CN201220560070U CN202982796U CN 202982796 U CN202982796 U CN 202982796U CN 201220560070 CN201220560070 CN 201220560070 CN 201220560070 U CN201220560070 U CN 201220560070U CN 202982796 U CN202982796 U CN 202982796U
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- China
- Prior art keywords
- syringe
- overcoat
- piston
- plug
- solute
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Abstract
The utility model provides a structure of a mixed drug pre-filled syringe. The structure of the mixed drug pre-filled syringe comprises a solute syringe and a solvent syringe, wherein the solute syringe particularly comprises a core rod, an outer cover, a piston and a plug; an inner chamber of the outer cover is provided with the core rod; the piston is sleeved outside the front end of the core rod; an outer edge ring surface of the piston is closely attached to the inner wall of the outer cover; a solute dissolved chamber is formed between a lower end face of the piston and an inner wall chamber of the outer cover and the inner wall chamber of the outer cover is arranged on the lower portion of the lower end face of the piston; and the plug is sleeved outside an outlet of the front end of the outer cover. The structure of the mixed drug pre-filled syringe is characterized in that a liquid hole and an air hole are formed on the lateral wall of the middle of the outer cover of the solute syringe; a rubber sleeve is sleeved outside a corresponding position of the lateral wall of the outer cover and the corresponding position of the lateral wall of the outer cover is provided with the liquid hole and the air hole; and a position of the rubber sleeve, which is corresponding to the air hole, is provided with an air guiding hole. The structure of the mixed drug pre-filled syringe has the advantages of being simple in structure, simple to fill solutes and solvents, low in production cost and easy to achieve mass production.
Description
Technical field
This utility model relates to the technical field of syringe construction, is specially the syringe construction of the pre-embedding of a kind of mixed medicine.
Background technology
First to extract solvent (water for injection etc.) out with syringe 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 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, easily pollute.The most important thing is easily to occur causing the generation of malpractice because of wrong medicine, until jeopardize patient's life security.
Existing pre-encapsulated injector, they are all to be potted in syringe after medicine is prepared.Because this pre-encapsulated injector is produced patient and is used the regular hour is arranged, cause solvent and solvent hybrid reaction or solvent and solute hybrid reaction or solute and solute hybrid reaction or solute and solvent qualitative change owing to mixing in syringe for a long time after solvent and solute mixing, this also just reduces drug effect and also has simultaneously the side effect of medicine.
Existing mixed medicine pre-encapsulated injector, their structure is very complicated, solute and solvent fill trouble, before injection, mixed drug anesthesia is tired of, production cost is very high, is difficult to realize mass production.
Summary of the invention
For the problems referred to above, this utility model provides the syringe construction of the pre-embedding of a kind of mixed medicine, 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 mixed medicine pre-encapsulated injector structure, its technical scheme is such: it comprises the solute syringe, the solvent syringe, described solute syringe specifically comprises core bar, overcoat, piston, stopper, the inner chamber of described overcoat is equipped with described core bar, the front end sleeve of described core bar is equipped with described piston, the outer rim anchor ring of described piston is close to the inwall of described overcoat, the molten chamber of formation solute between the inwall of the lower surface of described piston and the described overcoat of its underpart, the front end exit of described overcoat is set with described stopper, it is characterized in that: the sidewall of the medium position of the overcoat of described solute syringe has the liquid hole, pore, gum cover is set in the corresponding described liquid hole of having, the sidewall locations of the overcoat of pore, the position corresponding to described pore of described gum cover has gas port, described gas port is communicated with described pore, described gum cover has delivery hole corresponding to the position in described liquid hole, the described delivery hole described liquid of connection hole, liquid plug plug under preservation state is loaded on described delivery hole, gas plug plug is loaded on described gas port, described gas plug is air filtering plug, described air filtering plug gas-permeable, liquid-impermeable, the tail end inwall of described overcoat is provided with spacing ring, during mixing, described liquid plug breaks away from described delivery hole, the front-end-cone screw plug of solvent syringe is loaded in described delivery hole, the liquid outlet of described solvent syringe is communicated with described delivery hole.
It is further characterized in that: described solvent syringe specifically comprises core bar, overcoat, piston, stopper, the inner chamber of described overcoat is equipped with described core bar, the front end sleeve of described core bar is equipped with described piston, the outer rim anchor ring of described piston is close to the inwall of described overcoat, the front-end-cone headgear of described overcoat is equipped with described stopper, the molten chamber of formation solvent between the inwall of the lower surface of described piston and the described overcoat of its underpart.
after using structure of the present utility model, with the solute fill in the molten intracavity of the solute of solute syringe, with the solvent fill in the solvent syringe, packaging sterilizing is waited to go on the market, when needing to use, pull out liquid plug, solvent syringe front-end-cone screw plug is loaded in described delivery hole, make the liquid outlet of solvent syringe be communicated with delivery hole, pull the core bar of solute syringe, piston is pulled to the position of the spacing ring of overcoat, the effect of spacing ring is to prevent that piston is pulled the position that surpasses restriction when pulling piston, the gas plug is by advancing, go out internal pressure and atmospheric pressure balance that gas keeps the molten chamber of solute, pushing solvent syringe, solvent enters the molten intracavity of solute smoothly, injects and pulls out the solvent syringe after completing, vibrations solute syringe 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 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 the sectional structure schematic diagram under admixture of the present utility model;
Fig. 2 is the front view structural representation of solute syringe of the present utility model;
Fig. 3 is the A-A cutaway view structural representation of Fig. 2.
The specific embodiment
see Fig. 1, Fig. 2, Fig. 3, it comprises solute syringe 1, solvent syringe 2, the solute syringe specifically comprises core bar 3, overcoat 4, piston 5, stopper 6, the inner chamber of overcoat 4 is equipped with core bar 3, the front end sleeve of core bar 3 is equipped with piston 5, the outer rim anchor ring of piston 5 is close to the inwall of overcoat 4, the molten chamber 7 of formation solute between the inwall of the lower surface of piston 5 and the overcoat of its underpart 4, the front end exit of overcoat 4 is set with stopper 6, the sidewall of medium positions of outer 4 covers of solute syringe 1 has liquid hole 8, pore 9, gum cover 10 is set in the corresponding liquid hole 8 that has, the sidewall locations of the overcoat 4 of pore 9, the position corresponding to pore 9 of gum cover 10 has gas port 11, gas port 11 is communicated with pore 9, gum cover 10 has delivery hole 12 corresponding to the position in liquid hole 8, delivery hole 12 connects liquid-through hole 8, liquid plug 13 plugs under preservation state are loaded on delivery hole 12, gas plug 14 plugs are loaded on gas port 11, gas plug 14 is air filtering plug, the air filtering plug gas-permeable, liquid-impermeable, the tail end inwall of overcoat 4 is provided with spacing ring 15, during mixing, liquid plug 13 breaks away from delivery hole 12, front end conehead 16 plugs of solvent syringe 2 are loaded in delivery hole 12, the liquid outlet 17 of solvent syringe 2 is communicated with delivery hole 12.
Claims (2)
1. the syringe construction of the pre-embedding of a mixed medicine, it comprises the solute syringe, the solvent syringe, described solute syringe specifically comprises core bar, overcoat, piston, stopper, the inner chamber of described overcoat is equipped with described core bar, the front end sleeve of described core bar is equipped with described piston, the outer rim anchor ring of described piston is close to the inwall of described overcoat, the molten chamber of formation solute between the inwall of the lower surface of described piston and the described overcoat of its underpart, the front end exit of described overcoat is set with described stopper, it is characterized in that: the sidewall of the medium position of the overcoat of described solute syringe has the liquid hole, pore, gum cover is set in the corresponding described liquid hole of having, the sidewall locations of the overcoat of pore, the position corresponding to described pore of described gum cover has gas port, described gas port is communicated with described pore, described gum cover has delivery hole corresponding to the position in described liquid hole, the described delivery hole described liquid of connection hole, liquid plug plug under preservation state is loaded on described delivery hole, gas plug plug is loaded on described gas port, described gas plug is air filtering plug, described air filtering plug gas-permeable, liquid-impermeable, the tail end inwall of described overcoat is provided with spacing ring, during mixing, described liquid plug breaks away from described delivery hole, the front-end-cone screw plug of solvent syringe is loaded in described delivery hole, the liquid outlet of described solvent syringe is communicated with described delivery hole.
2. the syringe construction of the pre-embedding of a kind of mixed medicine according to claim 1, it is characterized in that: described solvent syringe specifically comprises core bar, overcoat, piston, stopper, the inner chamber of described overcoat is equipped with described core bar, the front end sleeve of described core bar is equipped with described piston, the outer rim anchor ring of described piston is close to the inwall of described overcoat, the front-end-cone headgear of described overcoat is equipped with described stopper, the molten chamber of formation solvent between the inwall of the lower surface of described piston and the described overcoat of its underpart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220560070 CN202982796U (en) | 2012-10-30 | 2012-10-30 | Structure of mixed drug pre-filled syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220560070 CN202982796U (en) | 2012-10-30 | 2012-10-30 | Structure of mixed drug pre-filled syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202982796U true CN202982796U (en) | 2013-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220560070 Expired - Fee Related CN202982796U (en) | 2012-10-30 | 2012-10-30 | Structure of mixed drug pre-filled syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202982796U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102940918A (en) * | 2012-10-30 | 2013-02-27 | 无锡耐思生物科技有限公司 | Mixing pre-filled and sealed injector structure |
-
2012
- 2012-10-30 CN CN 201220560070 patent/CN202982796U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102940918A (en) * | 2012-10-30 | 2013-02-27 | 无锡耐思生物科技有限公司 | Mixing pre-filled and sealed injector structure |
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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: 20130612 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |