CN102921072A - Powder injection mixing and pre-encapsulating injector - Google Patents
Powder injection mixing and pre-encapsulating injector Download PDFInfo
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- CN102921072A CN102921072A CN2012104214208A CN201210421420A CN102921072A CN 102921072 A CN102921072 A CN 102921072A CN 2012104214208 A CN2012104214208 A CN 2012104214208A CN 201210421420 A CN201210421420 A CN 201210421420A CN 102921072 A CN102921072 A CN 102921072A
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- outer sleeve
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- overcoat
- solvent
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Abstract
The invention provides a powder injection mixing and pre-encapsulating injector which has the advantages of simple structure, simple encapsulation of a solute and a solvent, low production cost, and easy realization of volume production. The powder injection mixing and pre-encapsulating injector comprises a mandril, two outer sleeves and two pistons, and is characterized in that the outer sleeves comprise an inner sleeve and an outer sleeve, the pistons comprise an upper piston and a lower piston, the mandril is sleeved in the inner sleeve, the front end of the mandril is provided with the upper piston, the inner sleeve is sleeved in the outer sleeve, a cavity formed between the lower piston and the outer sleeve is a solute dissolving cavity, the center of the front end face of the inner sleeve and the center of the lower piston are provided with through closing seams, and one sides of the closing seams, which are close to the solute dissolving cavity, are provided with downwards closing tapered holes.
Description
Technical field
The present invention relates to the technical field of syringe construction, be specially the mixed medicine pre-encapsulated injector 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, the invention provides the mixed medicine pre-encapsulated injector of injectable powder, it is simple in structure, and solute and solvent fill are simple, and production cost is low, easily realizes mass production.
Injectable powder mixes the medicine pre-encapsulated injector, and its technical scheme is such: it comprises core bar, overcoat, piston, it is characterized in that: described overcoat has two, is respectively inner-outer sleeve, overcoat; Described piston has two, is respectively upper piston, lower piston, and described core bar is set in the described inner-outer sleeve, and the front end of described core bar is equipped with described upper piston, and formed cavity is the molten chamber of solvent between described upper piston and the described inner-outer sleeve; The front end sleeve of described inner-outer sleeve is equipped with lower piston, and described inner-outer sleeve is set in the described overcoat, and formed cavity is the molten chamber of solute between described lower piston and the described overcoat; The front end face center of described inner-outer sleeve, the center of lower piston have the closure seam of perforation, the molten chamber of the close described solvent of described closure seam one side arranges the taper hole of downward closing in, described taper hole is positioned at described inner-outer sleeve center, described taper hole is communicated with described closure seam, described taper hole is communicated with the molten chamber of described solvent, and described closure seam is communicated with the molten chamber of described solute; The front end place of portalling of the described overcoat stopper that has been threaded.
It is further characterized in that: the front end of described inner-outer sleeve is provided with liquid outlet, the be threaded liquid outlet outer face of described inner-outer sleeve of described lower piston, the thimble plug of described lower piston is loaded in the described liquid outlet, described closure seam runs through the center of described thimble, taper hole is opened the molten chamber of the close described solvent that is loaded on described thimble one side, the below of described taper hole is provided with cylindrical channel, the below of described cylindrical channel is provided with small taper hole, described small taper hole is communicated with described closure seam, and described closure seam is communicated with the molten chamber of described solute;
Be provided with position limiting pile between the handle upper surface that presses down cross section and described inner-outer sleeve of described core bar, the bottom of described position limiting pile is mounted on the handle upper surface of described inner-outer sleeve, and the top of described position limiting pile presses down cross section and side by what support pin was fastenedly connected described core bar.
After using structure of the present invention, 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, withstand the handle of inner-outer sleeve, the pushing core bar, the molten intracavity solvent of solvent forms certain pressure, be that the taper hole sidewall also just has certain pressure, force the closure seam that is in closure state to be opened, form unidirectional solvent passage, solvent enters rapidly the molten intracavity of solute, the molten chamber of solute is owing to there is solvent to increase, and internal pressure just increases, and forces the relative lower piston of overcoat to move forward the volume in the molten chamber of increase solute until solvent enters the molten intracavity of solute fully; 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 invention;
Fig. 2 is the A place structural representation enlarged drawing of Fig. 1;
Fig. 3 is the B place structural representation enlarged drawing of Fig. 1.
The specific embodiment
See Fig. 1, Fig. 2, Fig. 3, it comprises core bar 1, overcoat, piston, and overcoat has two, is respectively inner-outer sleeve 2, overcoat 3; Piston has two, is respectively upper piston 4, lower piston 5, and core bar 1 is set in the inner-outer sleeve 2, and the front end of core bar 1 is equipped with upper piston 4, and formed cavity is the molten chamber 6 of solvent between upper piston 4 and the inner-outer sleeve 2; The front end sleeve of inner-outer sleeve 2 is equipped with lower piston 5, and inner-outer sleeve 2 is set in the overcoat 3, and formed cavity is the molten chamber 7 of solute between lower piston 5 and the overcoat 3; The front end of inner-outer sleeve 2 is provided with liquid outlet 12, the be threaded liquid outlet outer face 13 of inner-outer sleeve 2 of lower piston 5, thimble 14 plugs of lower piston 5 are loaded in the liquid outlet 12, closure seam 8 runs through the center of thimble 14, and taper hole 9 is opened the molten chamber of the close solvent that is loaded on thimble 14 6 one sides, and taper hole 9 tops are communicated with the molten chamber 6 of solvent, the below of taper hole 9 is provided with cylindrical channel 15, the below of cylindrical channel 15 is provided with small taper hole 16, and the below of small taper hole 16 is communicated with closure seam 8, and closure seam 8 is communicated with the molten chamber 7 of solute; The front end of overcoat 3 place's 10 stoppers 11 that have been threaded that portal.
Be provided with position limiting pile 18 between handle 17 upper surfaces that press down cross section and inner-outer sleeve 2 of core bar 1, the bottom of position limiting pile 18 is mounted on handle 17 upper surfaces of inner-outer sleeve 2, and the top of position limiting pile 18 presses down cross section and side by what support pin 19 was fastenedly connected core bar 1.Before the injection, break position limiting pile 18 off with the fingers and thumb, make support pin 19 fractures, the purpose that arranges of position limiting pile 18 is to guarantee that upper piston 4 can not be arbitrarily mobile with core bar 1 when non-injection, guarantees that namely the medicinal liquid in the molten chamber 6 of solvent can not arbitrarily enter in the molten chamber 7 of solute.
Claims (3)
1. injectable powder mixes the medicine pre-encapsulated injector, and it comprises core bar, overcoat, piston, it is characterized in that: described overcoat has two, is respectively inner-outer sleeve, overcoat; Described piston has two, is respectively upper piston, lower piston, and described core bar is set in the described inner-outer sleeve, and the front end of described core bar is equipped with described upper piston, and formed cavity is the molten chamber of solvent between described upper piston and the described inner-outer sleeve; The front end sleeve of described inner-outer sleeve is equipped with lower piston, and described inner-outer sleeve is set in the described overcoat, and formed cavity is the molten chamber of solute between described lower piston and the described overcoat; The front end face center of described inner-outer sleeve, the center of lower piston have the closure seam of perforation, the molten chamber of the close described solvent of described closure seam one side arranges the taper hole of downward closing in, described taper hole is positioned at described inner-outer sleeve center, described taper hole is communicated with described closure seam, described taper hole is communicated with the molten chamber of described solvent, and described closure seam is communicated with the molten chamber of described solute; The front end place of portalling of the described overcoat stopper that has been threaded.
2. injectable powder according to claim 1 mixes the medicine pre-encapsulated injector, it is characterized in that: the front end of described inner-outer sleeve is provided with liquid outlet, the be threaded liquid outlet outer face of described inner-outer sleeve of described lower piston, the thimble plug of described lower piston is loaded in the described liquid outlet, described closure seam runs through the center of described thimble, taper hole is opened the molten chamber of the close described solvent that is loaded on described thimble one side, the below of described taper hole is provided with cylindrical channel, the below of described cylindrical channel is provided with small taper hole, described small taper hole is communicated with described closure seam, and described closure seam is communicated with the molten chamber of described solute.
3. injectable powder according to claim 2 mixes the medicine pre-encapsulated injector, it is characterized in that: be provided with position limiting pile between the handle upper surface that presses down cross section and described inner-outer sleeve of described core bar, the bottom of described position limiting pile is mounted on the handle upper surface of described inner-outer sleeve, and the top of described position limiting pile presses down cross section and side by what support pin was fastenedly connected described core bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104214208A CN102921072A (en) | 2012-10-30 | 2012-10-30 | Powder injection mixing and pre-encapsulating injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104214208A CN102921072A (en) | 2012-10-30 | 2012-10-30 | Powder injection mixing and pre-encapsulating injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102921072A true CN102921072A (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104214208A Pending CN102921072A (en) | 2012-10-30 | 2012-10-30 | Powder injection mixing and pre-encapsulating injector |
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| Country | Link |
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| CN (1) | CN102921072A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168938A (en) * | 2012-03-16 | 2014-11-26 | 卡贝欧洲有限公司 | Medicament delivery device |
| CN109394537A (en) * | 2018-12-03 | 2019-03-01 | 四川大学华西第二医院 | A kind of pre-filled pressure equilibrium syringe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008299Y (en) * | 2007-03-23 | 2008-01-23 | 林作钱 | Syringe for animals for implanting electronic identification |
| CN202236671U (en) * | 2011-09-26 | 2012-05-30 | 吴林元 | Disposable syringe capable of being prefilled with liquid medicine |
| CN202844259U (en) * | 2012-10-30 | 2013-04-03 | 无锡耐思生物科技有限公司 | Injection mixing pre-filling and pre-sealing injector |
-
2012
- 2012-10-30 CN CN2012104214208A patent/CN102921072A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008299Y (en) * | 2007-03-23 | 2008-01-23 | 林作钱 | Syringe for animals for implanting electronic identification |
| CN202236671U (en) * | 2011-09-26 | 2012-05-30 | 吴林元 | Disposable syringe capable of being prefilled with liquid medicine |
| CN202844259U (en) * | 2012-10-30 | 2013-04-03 | 无锡耐思生物科技有限公司 | Injection mixing pre-filling and pre-sealing injector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168938A (en) * | 2012-03-16 | 2014-11-26 | 卡贝欧洲有限公司 | Medicament delivery device |
| CN109394537A (en) * | 2018-12-03 | 2019-03-01 | 四川大学华西第二医院 | A kind of pre-filled pressure equilibrium syringe |
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Application publication date: 20130213 |