CN102935255B - Pre-filling-and-sealing syringe structure for mixing - Google Patents
Pre-filling-and-sealing syringe structure for mixing Download PDFInfo
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- CN102935255B CN102935255B CN201210421241.4A CN201210421241A CN102935255B CN 102935255 B CN102935255 B CN 102935255B CN 201210421241 A CN201210421241 A CN 201210421241A CN 102935255 B CN102935255 B CN 102935255B
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Abstract
The invention provides a pre-filling-and-sealing syringe structure for mixing, which is simple in structure, simple for filling solutes and solvents, low in production cost and easy to realize batch production. The pre-filling-and-sealing syringe structure for mixing comprises a solute syringe and a solvent syringe, wherein the solute syringe concretely comprises a core bar, a jacket, a piston and a plug; the core bar is arranged in the cavity of the jacket; the piston is sleeved at the front end of the core bar; the outer edge ring surface of the piston clings to the inner wall of the jacket; a solute dissolving cavity is formed between the lower end surface of the piston and the inner wall of the jacket at the lower part of the piston; the plug is sleeved at the front end outlet of the jacket; and the pre-filling-and-sealing syringe structure for mixing is characterized in that a piston pin hole is formed at the upper part of the center of the piston, a closing slot is formed at the lower part of the center of the piston, the piston pin hole is communicated with the closing slot, the closing slot is communicated with the solute dissolving cavity, and an inner ring clamping groove is formed at the top of the core bar of the solute syringe.
Description
Technical field
The present invention relates to the technical field of syringe construction, be specially the pre-encapsulated injector structure of mixed medicine.
Background technology
First solvent (water for injection etc.) is extracted out with syringe in traditional injector operations process, again syringe needle is penetrated solute bottle (injectable powder or aqueous injection), then release solvent to carry out mixing dissolving with solute, finally extract out again in admixing medical solutions to syringe and could to inject human body or to dosing in infusion bottle.This operational approach not only program is complicated, and nurse's amount of labour is large, and medicinal liquid through shifting several times, easily will pollute.The most important thing is the generation easily occurring causing because of wrong medicine malpractice, until jeopardize the life security of patient.
Existing pre-encapsulated injector, they are all be potted in syringe after being prepared by medicine.Produce patient's use due to this pre-encapsulated injector and have the regular hour, due to after solvent and solute mixing long-term in syringe mixing 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 still has the side effect of medicine simultaneously with regard to reduction drug effect.
Existing mixed medicine pre-encapsulated injector, their structure is very complicated, and solute and solvent fill bother, and 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, the invention provides the pre-encapsulated injector structure of mixed medicine, its structure is simple, and simply, production cost is low, easily realizes mass production for solute and solvent fill.
The pre-encapsulated injector structure of mixed medicine, its technical scheme is such: it comprises solute syringe, vehicle injections device, 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 solute is formed 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 central upper of described piston is provided with piston pin hole, bottom is provided with closure seam, described piston pin hole is communicated with described closure seam, described closure seam is communicated with the molten chamber of described solute, the top of the core bar of described solute syringe is provided with internal ring draw-in groove, the lower end of spiral base is fastened in described internal ring draw-in groove, the upper cap of the described spiral base under preservation state is equipped with block, the central upper portion of described spiral base is provided with taper hole chamber, the below in described taper hole chamber is base, the center of described base is provided with pin hole, described taper hole chamber is communicated with described pin hole, pin runs through described core bar, its two ends are communicated with described pin hole respectively, piston pin hole, during mixing, described block departs from described spiral base, the front end conehead of described vehicle injections device is plugged in the taper hole intracavity of described spiral base, the liquid outlet of described vehicle injections device is communicated with described taper hole chamber.
It is further characterized in that: described vehicle injections implement body 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, forms the molten chamber of solvent between the inwall of the lower surface of described piston and the described overcoat of its underpart;
The upper outer end of described spiral base is provided with external screw thread, and the installation anchor ring inwall of the front end conehead of described vehicle injections device is provided with female thread, and the installation anchor ring of described vehicle injections device is threaded described spiral base.
After using structure of the present invention, by the solute molten intracavity of solute fill in solute syringe, by solvent fill in vehicle injections device, packaging sterilizing is waited to go on the market, when needing to use, pull out block, the front end conehead of vehicle injections device is inserted the taper hole chamber of spiral base, the liquid outlet of vehicle injections device is made to be communicated with taper hole chamber, promote vehicle injections device, solvent passes piston through pin, because solvent has certain pressure, strut the closure seam of piston, solute molten chamber solvent constantly increases, be enclosed within outward under the internal pressure of solute molten chamber, molten chamber for enlarging volume and relatively core bar move forward, vehicle injections device is pulled out after having injected, cover block, vibrations solute syringe makes solvent and solute at mixed medicine pre-encapsulated injector mix homogeneously, spin off stopper, promote core bar to drain the gas in the molten chamber of solute, injector is injected at once, throw away after injection at once, its structure is simple, solute and solvent fill simple, production cost is low, easily realize mass production.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram under admixture of the present invention;
Fig. 2 is the front view structural representation of solute syringe of the present invention.
Detailed description of the invention
See Fig. 1, Fig. 2, it comprises solute syringe 1, vehicle injections device 2, solute syringe 1 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 solute is formed between the inwall of the lower surface of piston 5 and the overcoat 4 of its underpart, the front end exit of overcoat 4 is set with stopper 6, the central upper of piston 5 is provided with piston pin hole 8, bottom is provided with closure seam 9, piston pin hole 8 is communicated with closure seam 9, closure seam 9 is communicated with the molten chamber 7 of solute, the top of the core bar 3 of solute syringe 1 is provided with internal ring draw-in groove 10, the lower end of spiral base 11 is fastened in internal ring draw-in groove 10, the upper cap of the spiral base 11 under preservation state is equipped with block 12, the central upper portion of spiral base 11 is provided with taper hole chamber 13, the below in taper hole chamber 13 is base 14, the center of base 14 is provided with pin hole 15, taper hole chamber 13 is communicated with pin hole 15, pin 24 runs through core bar 3, its two ends are communicated with pin hole 15 respectively, piston pin hole 8, during mixing, block 12 departs from spiral bases 11, the front end conehead 16 of vehicle injections device 2 is plugged in the taper hole chamber 13 of spiral base 11, the liquid outlet 17 of vehicle injections device 2 is communicated with taper hole chamber 13.
Vehicle injections device 2 specifically comprises core bar 18, overcoat 19, piston 20, stopper are (not shown in FIG., belong to existing mature structure), the inner chamber of overcoat 19 is equipped with core bar 18, the front end sleeve of core bar 18 is equipped with piston 20, the outer rim anchor ring of piston 20 is close to the inwall of overcoat 19, the front end conehead 16 of overcoat 19 is set with stopper, forms the molten chamber 21 of solvent between the inwall of the lower surface of piston 20 and the overcoat 19 of its underpart;
The upper outer end of spiral base 11 is provided with external screw thread 22, and installation anchor ring 23 inwall of the front end conehead 16 of vehicle injections device 2 is provided with female thread, and the installation anchor ring 23 of vehicle injections device 2 is threaded spiral base 11.
Claims (3)
1. the pre-encapsulated injector structure of mixed medicine, it comprises solute syringe, vehicle injections device, described solute syringe specifically comprises the first core bar, first overcoat, first piston, first stopper, the inner chamber of described first overcoat is equipped with described first core bar, the front end sleeve of described first core bar is equipped with described first piston, the outer rim anchor ring of described first piston is close to the inwall of described first overcoat, the molten chamber of solute is formed between the inwall of the lower surface of described first piston and described first overcoat of its underpart, the front end exit of described first overcoat is set with described first stopper, it is characterized in that: the central upper of described first piston is provided with piston pin hole, bottom is provided with closure seam, described piston pin hole is communicated with described closure seam, described closure seam is communicated with the molten chamber of described solute, the top of the first core bar of described solute syringe is provided with internal ring draw-in groove, the lower end of spiral base is fastened in described internal ring draw-in groove, the upper cap of the described spiral base under preservation state is equipped with block, the central upper portion of described spiral base is provided with taper hole chamber, the below in described taper hole chamber is base, the center of described base is provided with pin hole, described taper hole chamber is communicated with described pin hole, pin runs through described first core bar, its two ends are communicated with described pin hole respectively, piston pin hole, during mixing, described block departs from described spiral base, the front end conehead of described vehicle injections device is plugged in the taper hole intracavity of described spiral base, the liquid outlet of described vehicle injections device is communicated with described taper hole chamber.
2. the pre-encapsulated injector structure of mixed medicine according to claim 1, it is characterized in that: described vehicle injections implement body comprises the second core bar, the second overcoat, the second piston, the second stopper, the inner chamber of described second overcoat is equipped with described second core bar, the front end sleeve of described second core bar is equipped with described second piston, the outer rim anchor ring of described second piston is close to the inwall of described second overcoat, the front-end-cone headgear of described second overcoat is equipped with described second stopper, forms the molten chamber of solvent between the inwall of the lower surface of described second piston and described second overcoat of its underpart.
3. the pre-encapsulated injector structure of mixed medicine according to claim 1 and 2, it is characterized in that: the upper outer end of described spiral base is provided with external screw thread, the installation anchor ring inwall of the front end conehead of described vehicle injections device is provided with female thread, and the installation anchor ring of described vehicle injections device is threaded described spiral base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210421241.4A CN102935255B (en) | 2012-10-30 | 2012-10-30 | Pre-filling-and-sealing syringe structure for mixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210421241.4A CN102935255B (en) | 2012-10-30 | 2012-10-30 | Pre-filling-and-sealing syringe structure for mixing |
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| Publication Number | Publication Date |
|---|---|
| CN102935255A CN102935255A (en) | 2013-02-20 |
| CN102935255B true CN102935255B (en) | 2015-01-21 |
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| CN201210421241.4A Active CN102935255B (en) | 2012-10-30 | 2012-10-30 | Pre-filling-and-sealing syringe structure for mixing |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645458A (en) * | 2015-03-06 | 2015-05-27 | 苏州贝尔一锋医疗器械有限公司 | Medicament-mixing syringe |
| CN109350515B (en) * | 2018-11-16 | 2024-05-14 | 阳普医疗（湖南）有限公司 | Injection syringe |
| CN110201268B (en) * | 2019-06-26 | 2021-08-20 | 吉林大学 | Anesthetic needle convenient to control dose |
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 |
| CN2843488Y (en) * | 2005-11-04 | 2006-12-06 | 王建 | Syringe with medicament |
| CN200951241Y (en) * | 2006-07-07 | 2007-09-26 | 中山博泰药械有限公司 | Double blocking type bottle aqueous powder injector |
| CN202982811U (en) * | 2012-10-30 | 2013-06-12 | 无锡耐思生物科技有限公司 | Pre-filling syringe structure for medicine mixing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4838955B2 (en) * | 2001-08-21 | 2011-12-14 | 武田薬品工業株式会社 | Two-chamber prefilled syringe |
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2012
- 2012-10-30 CN CN201210421241.4A patent/CN102935255B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2843488Y (en) * | 2005-11-04 | 2006-12-06 | 王建 | Syringe with medicament |
| 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 |
| CN200951241Y (en) * | 2006-07-07 | 2007-09-26 | 中山博泰药械有限公司 | Double blocking type bottle aqueous powder injector |
| CN202982811U (en) * | 2012-10-30 | 2013-06-12 | 无锡耐思生物科技有限公司 | Pre-filling syringe structure for medicine mixing |
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| Publication number | Publication date |
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| CN102935255A (en) | 2013-02-20 |
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Address after: No. 530, Xida Road, Meicun Industrial Park, Xinwu District, Wuxi City, Jiangsu Province, 214112 Patentee after: Wuxi Naisi Life Technology Co.,Ltd. Address before: No. 230, Xida Road, Meicun Industrial Park, New District, Wuxi City, Jiangsu Province, 214000 Patentee before: NEST BIOTECHNOLOGY Co.,Ltd. |