CN102961803A - Disposable prefilled syringe - Google Patents
Disposable prefilled syringe Download PDFInfo
- Publication number
- CN102961803A CN102961803A CN201210421699XA CN201210421699A CN102961803A CN 102961803 A CN102961803 A CN 102961803A CN 201210421699X A CN201210421699X A CN 201210421699XA CN 201210421699 A CN201210421699 A CN 201210421699A CN 102961803 A CN102961803 A CN 102961803A
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- passage
- female thread
- cap
- core bar
- screw
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Abstract
The invention provides a disposable prefilled syringe which makes ensure liquid medicine is mixed uniformly and is not polluted. The disposable prefilled syringe comprises a mandrel and an outer cover; the mandrel is sleeved in an inner hole of the outer cover; the front end of the mandrel is sleeved with a piston head; the front end of the outer cover is provided with a vent hole; the liquid medicine is loaded between the piston head and the vent hole; the disposable prefilled syringe is characterized in that the vent hole is wrapped in a conical structure which is closed outwards; the vent hole is a conical hole which is flared outwards; the front end of the outer cover is also provided with an internal thread connecting end; the internal thread connecting end is sleeved outside the conical structure; an installation cavity is formed between the internal thread of the internal thread connecting end and the outer conical surface of the conical structure; a spiral cap is in threaded connection with the internal thread on the internal thread connecting end through an external thread of the spiral cap, and is stuffed in the installation cavity; and a through hole is arranged in the center of the central wall of the spiral cap.
Description
Technical field
The present invention relates to the technical field of syringe construction, be specially disposable use pre-encapsulated injector.
Background technology
Pre-encapsulated injector is a kind of drug packaging form of the nineties exploitation, and through promoting the use of for many years, the development for the propagation that keeps off infection and medical industry plays a good role.Pre-encapsulated injector is mainly used in the packing and storing of high-grade medicine and is directly used in injection or is used for the surgery washings such as ophthalmology, otology, orthopaedics.Prefilled syringe has been avoided: because wrong medicine causes the generation of malpractice, until jeopardize patient's life security.
Existing prefilled syringe has some shortcomings: prefilled syringe (not being with pin) overcoat front end has an aperture, the aperture front end is blocked by the Capsule of vice, this syringe is behind the fill medicine, medicine also is full of aperture, medical personnel want whipping several lower before use usually, allow again mix homogeneously of liquid medicine, because aperture is too tiny, the liquid medicine in the aperture is difficult to participate in mixing; Its pin hole of prefilled syringe (band pin) is more tiny, and the more difficult participation of liquid medicine in the pin hole mixes again, also has needle tubing to be inserted in the Capsule of front end and is easy to buffings in liquid medicine.
Summary of the invention
For the problems referred to above, the invention provides disposable use pre-encapsulated injector, it guarantees the liquid medicine mix homogeneously, and contamination phenomenon can not occur.
Disposable use pre-encapsulated injector, its technical scheme is such: it comprises core bar, overcoat, described core bar is set in the endoporus of described overcoat, the leading section of described core bar is set with piston head, the leading section of described overcoat is provided with passage, between described piston head and the described passage liquid medicine is housed, it is characterized in that: described passage is wrapped in the conical structure of outside closing in, described passage is outside enlarging conical bore, the leading section of described overcoat also is provided with the female thread link, it is outside that described female thread link is set in described conical structure, form between the female thread of described female thread link and the outer conical surface of described conical structure cavity is installed, screw-cap is by the be threaded female thread of described female thread link of its external screw thread, and plug is loaded in the described installation cavity, the center of the center wall of described screw-cap is provided with through hole, the top cylinder of stopper runs through the center wall of described screw-cap, the top of described top cylinder is provided with sealing ring, the afterbody of stopper is anchored in the fastening cavity of afterbody of described screw-cap by gland, described top plunger is loaded in the described passage, the sealing ring of described top cylinder and described passage interference fit.
It is further characterized in that: an end of the close described core bar of described passage is cylindrical hole, be outside enlarging conical bore away from an end of described core bar.
After using structure of the present invention, the afterbody of stopper is anchored in the fastening cavity of afterbody of described screw-cap by gland, thereby so that stopper and screw-cap are connected as a single entity, when screw-cap connects the female thread link of overcoat leading section by its external screw thread, the top plunger of stopper is loaded in the passage, until the sealing ring of top cylinder and described passage interference fit, finish sealing, because passage can be enough large, it guarantees the liquid medicine mix homogeneously, and contamination phenomenon can not occur.
Description of drawings
Fig. 1 is the front view sectional structure sketch map of embodiments of the invention one;
Fig. 2 is the structural representation of the passage of embodiments of the invention two.
The specific embodiment
See Fig. 1, Fig. 2, it comprises core bar 1, overcoat 2, core bar 1 is set in the endoporus 3 of overcoat 2, the leading section of core bar 1 is set with piston head 4, the leading section of overcoat 2 is provided with passage 5, between piston head 4 and the passage 5 liquid medicine is housed, passage 5 is wrapped in the conical structure 6 of outside closing in, the leading section of overcoat 2 also is provided with female thread link 7, female thread link 7 is set in conical structure 6 outsides, form between the female thread 8 of female thread link 7 and the outer conical surface of conical structure 6 cavity 11 is installed, screw-cap 9 is by the be threaded female thread 8 of female thread link 7 of its external screw thread 10, and plug is loaded in the installation cavity 11, the center of the center wall 12 of screw-cap 9 is provided with through hole 13, the top cylinder 15 of stopper 14 runs through the center wall 12 of screw-cap 9, the top of top cylinder 15 is provided with sealing ring 16, the afterbody of stopper 14 is anchored in the fastening cavity 18 of afterbody of screw-cap 9 by gland 17, cylinder 15 plugs in top are loaded in the passage 5 sealing ring 16 of top cylinder 15 and passage 5 interference fit.
Specific embodiment one, see Fig. 1: passage 5 is outside enlarging conical bore;
Specific embodiment two, see Fig. 2: an end of the close core bar 1 of passage 5 is cylindrical hole 18, be outside enlarging conical bore 19 away from an end of core bar 1.
Claims (2)
1. disposable use pre-encapsulated injector, it comprises core bar, overcoat, described core bar is set in the endoporus of described overcoat, the leading section of described core bar is set with piston head, the leading section of described overcoat is provided with passage, between described piston head and the described passage liquid medicine is housed, it is characterized in that: described passage is wrapped in the conical structure of outside closing in, described passage is outside enlarging conical bore, the leading section of described overcoat also is provided with the female thread link, it is outside that described female thread link is set in described conical structure, form between the female thread of described female thread link and the outer conical surface of described conical structure cavity is installed, screw-cap is by the be threaded female thread of described female thread link of its external screw thread, and plug is loaded in the described installation cavity, the center of the center wall of described screw-cap is provided with through hole, the top cylinder of stopper runs through the center wall of described screw-cap, the top of described top cylinder is provided with sealing ring, the afterbody of stopper is anchored in the fastening cavity of afterbody of described screw-cap by gland, described top plunger is loaded in the described passage, the sealing ring of described top cylinder and described passage interference fit.
2. disposable use pre-encapsulated injector according to claim 1 is characterized in that: an end of the close described core bar of described passage is cylindrical hole, be outside enlarging conical bore away from an end of described core bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210421699.XA CN102961803B (en) | 2012-10-30 | 2012-10-30 | Disposable prefilled syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210421699.XA CN102961803B (en) | 2012-10-30 | 2012-10-30 | Disposable prefilled syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102961803A true CN102961803A (en) | 2013-03-13 |
| CN102961803B CN102961803B (en) | 2015-01-21 |
Family
ID=47792418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210421699.XA Active CN102961803B (en) | 2012-10-30 | 2012-10-30 | Disposable prefilled syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102961803B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020000132A1 (en) * | 2018-06-25 | 2020-01-02 | 江苏采纳医疗科技有限公司 | Pre-filling type catheter flusher cap and pre-filling type catheter flusher using same |
| CN111278492A (en) * | 2017-10-31 | 2020-06-12 | 泰尔茂株式会社 | Syringe and prefilled syringe |
| KR20210078853A (en) * | 2019-12-19 | 2021-06-29 | 김우택 | Disposable syringe for preventing reuse |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5135513A (en) * | 1987-02-05 | 1992-08-04 | Medicorp Holding S.A. | Connector for liquid transfer device |
| CN1162269A (en) * | 1994-11-03 | 1997-10-15 | 阿斯特拉制药有限公司 | Plastic syringe with overcap |
| CN1176605A (en) * | 1995-02-24 | 1998-03-18 | 考陶尔德航空股份有限公司 | Combination closure and syringe |
| US6440101B1 (en) * | 2000-05-31 | 2002-08-27 | Abbott Laboratories | Syringe systems for lyophilized drugs and methods for making the same |
| CN1422167A (en) * | 2000-04-03 | 2003-06-04 | 阿斯特拉曾尼卡英国有限公司 | Pre-filled syringe |
| US20040116858A1 (en) * | 2002-10-15 | 2004-06-17 | Transcoject Gesellschaft Fur Medizinische Gerate Mbh & Co. Kg | Tamper-evident closure for a syringe |
| CN202844253U (en) * | 2012-10-30 | 2013-04-03 | 无锡耐思生物科技有限公司 | Disposable pre-filled injector |
-
2012
- 2012-10-30 CN CN201210421699.XA patent/CN102961803B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5135513A (en) * | 1987-02-05 | 1992-08-04 | Medicorp Holding S.A. | Connector for liquid transfer device |
| CN1162269A (en) * | 1994-11-03 | 1997-10-15 | 阿斯特拉制药有限公司 | Plastic syringe with overcap |
| CN1176605A (en) * | 1995-02-24 | 1998-03-18 | 考陶尔德航空股份有限公司 | Combination closure and syringe |
| CN1422167A (en) * | 2000-04-03 | 2003-06-04 | 阿斯特拉曾尼卡英国有限公司 | Pre-filled syringe |
| US6440101B1 (en) * | 2000-05-31 | 2002-08-27 | Abbott Laboratories | Syringe systems for lyophilized drugs and methods for making the same |
| US20040116858A1 (en) * | 2002-10-15 | 2004-06-17 | Transcoject Gesellschaft Fur Medizinische Gerate Mbh & Co. Kg | Tamper-evident closure for a syringe |
| CN202844253U (en) * | 2012-10-30 | 2013-04-03 | 无锡耐思生物科技有限公司 | Disposable pre-filled injector |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111278492A (en) * | 2017-10-31 | 2020-06-12 | 泰尔茂株式会社 | Syringe and prefilled syringe |
| KR20200083466A (en) * | 2017-10-31 | 2020-07-08 | 테루모 가부시키가이샤 | Syringe and pre-filled syringe |
| EP3689396A4 (en) * | 2017-10-31 | 2020-08-19 | Terumo Kabushiki Kaisha | Syringe and prefilled syringe |
| US11660402B2 (en) | 2017-10-31 | 2023-05-30 | Terumo Kabushiki Kaisha | Syringe and prefilled syringe |
| KR102571984B1 (en) | 2017-10-31 | 2023-08-29 | 테루모 가부시키가이샤 | Syringes and Prefilled Syringes |
| WO2020000132A1 (en) * | 2018-06-25 | 2020-01-02 | 江苏采纳医疗科技有限公司 | Pre-filling type catheter flusher cap and pre-filling type catheter flusher using same |
| KR20210078853A (en) * | 2019-12-19 | 2021-06-29 | 김우택 | Disposable syringe for preventing reuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102961803B (en) | 2015-01-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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. |
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| CP03 | Change of name, title or address |