CN102921071A - Mixing and prefilling syringe structure - Google Patents
Mixing and prefilling syringe structure Download PDFInfo
- Publication number
- CN102921071A CN102921071A CN2012104210828A CN201210421082A CN102921071A CN 102921071 A CN102921071 A CN 102921071A CN 2012104210828 A CN2012104210828 A CN 2012104210828A CN 201210421082 A CN201210421082 A CN 201210421082A CN 102921071 A CN102921071 A CN 102921071A
- Authority
- CN
- China
- Prior art keywords
- piston
- overcoat
- upper piston
- slotted hole
- inwall
- 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.)
- Pending
Links
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 239000003814 drug Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010923 batch production Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000008155 medical solution Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008215 water for injection Substances 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention provides a mixing and prefilling syringe structure with simple structure, simple solute and solvent filling, low production cost and easy implementation of batch production. The mixing and prefilling syringe structure comprises a core pin, a sleeve and pistons, and is characterized in that upper and lower pistons are arranged; the upper piston is sleeved on the lower part of the core pin, and connected with the lower piston through a connecting rod; a long hole is formed in the lateral wall in the middle of the sleeve; a rubber casing is covered on the corresponding wall of the long hole; the long hole is positioned between the upper piston and the lower piston; and the upper piston and the lower piston are closely attached to the inner wall of the sleeve.
Description
Technical field
The present invention relates to the technical field of syringe construction, be specially mixed medicine pre-encapsulated injector structure.
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, 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 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 mixed medicine pre-encapsulated injector, their structure is very complicated, solute and solvent fill trouble, mixed drug anesthesia is tired of before the injection, production cost is very high, is difficult to realize mass production.
Summary of the invention
For the problems referred to above, the invention provides mixed medicine pre-encapsulated injector structure, it is simple in structure, and solute and solvent fill are simple, and production cost is low, easily realizes mass production.
Mixed 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, the bottom of described core bar is set with described upper piston, described upper piston connects lower piston by connecting rod, the medium position sidewall of described overcoat has slotted hole, the corresponding outer wall place of described slotted hole has mounted cover gum cover, the position of described slotted hole is positioned at described upper piston, between the lower piston, described upper piston, lower piston all is close to the inwall of described overcoat, the formed cavity of the inwall of the lower surface of described lower piston and the described overcoat of its underpart 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: the be threaded lower end of described core bar of described upper piston;
Described slotted hole is two, and two described slotted holes are arranged symmetrically with about the central shaft of described overcoat, and described gum cover correspondence mounts cover in described slotted hole outer wall.
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, the pulling core bar, upper piston is pulled to the position of the spacing ring of overcoat, the effect of spacing ring is to prevent that upper piston is pulled the position that surpasses restriction when the pulling piston, and lower piston also was pulled and moves up when upper piston was pulled; Be pulled to the position of spacing ring when upper piston, the position of lower piston is positioned at the slotted hole place, form the slit between the corresponding gum cover of lower piston and slotted hole, 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 overcoat slotted hole below afterwards, the mixed medicine pre-encapsulated injector of vibrations makes solvent and solute at mixed medicine pre-encapsulated injector mix homogeneously, spins off stopper, the drain gas in the molten chamber of solute of promotion 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 schematic diagram of the present invention.
The specific embodiment
See Fig. 1, it comprises core bar 1, overcoat 2, piston, and piston has two, is respectively upper piston 3, lower piston 4, the bottom of core bar 1 is set with upper piston 3, upper piston 3 connects lower piston 4 by connecting rod 5, and the medium position sidewall of overcoat 2 has slotted hole 6, and the corresponding outer wall place of slotted hole 6 has mounted cover gum cover 7, the position of slotted hole 6 is between upper piston 3, lower piston 4, slotted hole 6 is two, and two slotted holes 6 are arranged symmetrically with about the central shaft of overcoat 2, and gum cover 7 correspondences mount cover in slotted hole 6 outer walls.Upper piston 3, lower piston 4 all are close to the inwall of overcoat 2, the formed cavity of the inwall of the lower surface of lower piston 4 and the overcoat of its underpart 2 is the molten chamber 8 of solute, the formed cavity of the inwall of the lower surface of the upper surface of lower piston 4, upper piston 3 and overcoat between the two 2 is the molten chamber 9 of solvent, 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.The be threaded lower end of core bar 1 of upper piston 3.
Claims (3)
1. mix 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, the bottom of described core bar is set with described upper piston, described upper piston connects lower piston by connecting rod, the medium position sidewall of described overcoat has slotted hole, the corresponding outer wall place of described slotted hole has mounted cover gum cover, the position of described slotted hole is positioned at described upper piston, between the lower piston, described upper piston, lower piston all is close to the inwall of described overcoat, the formed cavity of the inwall of the lower surface of described lower piston and the described overcoat of its underpart 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. mixed medicine pre-encapsulated injector structure according to claim 1 is characterized in that: the be threaded lower end of described core bar of described upper piston.
3. mixed medicine pre-encapsulated injector structure according to claim 2, it is characterized in that: described slotted hole is two, and two described slotted holes are arranged symmetrically with about the central shaft of described overcoat, and described gum cover correspondence mounts cover in described slotted hole outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104210828A CN102921071A (en) | 2012-10-30 | 2012-10-30 | Mixing and prefilling syringe structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104210828A CN102921071A (en) | 2012-10-30 | 2012-10-30 | Mixing and prefilling syringe structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102921071A true CN102921071A (en) | 2013-02-13 |
Family
ID=47636087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104210828A Pending CN102921071A (en) | 2012-10-30 | 2012-10-30 | Mixing and prefilling syringe structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102921071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092462A (en) * | 2014-05-21 | 2015-11-25 | 深圳市芭田生态工程股份有限公司 | Quick testing method and device for fertilizer agglomeration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775317A (en) * | 2005-11-30 | 2006-05-24 | 湖南千山制药机械股份有限公司 | Two-chamber prefilled syringe and its prefilling method |
| CN1792391A (en) * | 2005-12-31 | 2006-06-28 | 湖南千山制药机械股份有限公司 | Pre-filled injector for mixing injection medicines with easy broken rod |
| CN2880117Y (en) * | 2005-11-30 | 2007-03-21 | 湖南千山制药机械股份有限公司 | Double-chamber perfilling injector with sealing cap |
| CN202982810U (en) * | 2012-10-30 | 2013-06-12 | 无锡耐思生物科技有限公司 | Structure of mixed drug pre-filled syringe |
-
2012
- 2012-10-30 CN CN2012104210828A patent/CN102921071A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775317A (en) * | 2005-11-30 | 2006-05-24 | 湖南千山制药机械股份有限公司 | Two-chamber prefilled syringe and its prefilling method |
| CN2880117Y (en) * | 2005-11-30 | 2007-03-21 | 湖南千山制药机械股份有限公司 | Double-chamber perfilling injector with sealing cap |
| CN1792391A (en) * | 2005-12-31 | 2006-06-28 | 湖南千山制药机械股份有限公司 | Pre-filled injector for mixing injection medicines with easy broken rod |
| CN202982810U (en) * | 2012-10-30 | 2013-06-12 | 无锡耐思生物科技有限公司 | Structure of mixed drug pre-filled syringe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092462A (en) * | 2014-05-21 | 2015-11-25 | 深圳市芭田生态工程股份有限公司 | Quick testing method and device for fertilizer agglomeration |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130213 |