CN104436375A - 一种注射笔 - Google Patents
一种注射笔 Download PDFInfo
- Publication number
- CN104436375A CN104436375A CN201410844694.7A CN201410844694A CN104436375A CN 104436375 A CN104436375 A CN 104436375A CN 201410844694 A CN201410844694 A CN 201410844694A CN 104436375 A CN104436375 A CN 104436375A
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- CN
- China
- Prior art keywords
- described screw
- screw thread
- screw mandrel
- injection pen
- buckle
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31533—Dosing mechanisms, i.e. setting a dose
- A61M5/31545—Setting modes for dosing
- A61M5/31548—Mechanically operated dose setting member
- A61M5/3155—Mechanically operated dose setting member by rotational movement of dose setting member, e.g. during setting or filling of a syringe
- A61M5/31551—Mechanically operated dose setting member by rotational movement of dose setting member, e.g. during setting or filling of a syringe including axial movement of dose setting member
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/24—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic
- A61M2005/2403—Ampoule inserted into the ampoule holder
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
本发明涉及一种注射笔,包括螺纹按钮、丝杆、卡扣,所述螺纹按钮为一端开口的中空状设计,在其内壁设置有螺纹;所述丝杆表面具有螺纹,其一端螺旋***所述螺纹按钮内部,另一端外露,用于推进药瓶进行注射;所述卡扣设置于所述螺纹按钮开口端,嵌套于所述丝杆上,其主体结构为相对所述丝杆对称的两个倒钩。本发明结构简单,注射量可任意调节,使用携带方便。
Description
技术领域
本发明涉及医疗器械领域,具体公开一种注射笔。
背景技术
目前市场上存在的注射笔种类繁多,结构多变,主要存在以下几点不足:
1、现有注射器多为内置式药瓶,一次性使用,不能实现多次循环利用,不利于回收;
2、产品的生产成本较高,给消费者带来更大的经济负担;
3、产品零部件多样,装配工艺过于复杂;
4、现有产品尺寸较大,不易携带。
发明内容
本发明的目的在于:为解决以上问题提供一种结构简单、体积小便于携带、使用方便、可多次循环利用的注射笔。
本发明所采用的技术方案是这样的:
一种注射笔,包括螺纹按钮、丝杆、卡扣,所述螺纹按钮为一端开口的中空状设计,在其内壁设置有螺纹;所述丝杆表面具有螺纹,其一端螺旋***所述螺纹按钮内部,另一端外露,用于推进药瓶进行注射;所述卡扣设置于所述螺纹按钮开口端,嵌套于所述丝杆上,其主体结构为相对所述丝杆对称的两个倒钩。
进一步地,所述螺纹按钮内壁螺纹长度为1~3cm。
进一步地,所述丝杆沿长度方向对称分布有斜面导向结构,所述卡扣上倒钩与所述斜面导向结构处相抵接。
进一步地,所述螺纹按钮和所述丝杆均可相对自由旋转。
进一步地,所述丝杆的螺距为0.5~1.5mm。
综上所述,由于采用上述技术方案,本发明的有益效果是:
1、本发明各零部件结构简单,便于制造;
2、用户可根据自己的需求调节任意注射量;
3、本发明中卡扣和丝杆的设计,可以使得本产品重复多次使用,而且拆卸简单,便于使用;
4、本发明结构小巧,便于携带。
附图说明
图1为本发明的结构示意图;
图2为图1沿A-A方向剖视图;
图3为本发明螺纹按钮结构示意图;
图4为本发明丝杆结构示意图;
图5为本发明卡扣结构示意图。
具体实施方式
下面结合附图对本发明作进一步详细说明。
如图1~5所示,一种注射笔,包括螺纹按钮1、丝杆2、卡扣3,所述螺纹按钮1为一端开口的中空状设计,在其内壁设置有螺纹,螺纹长度为2cm;所述丝杆2表面具有螺纹,其一端螺旋***所述螺纹按钮1内部,另一端外露,用于推进药瓶4进行注射;所述卡扣3设置于所述螺纹按钮1开口端,嵌套于所述丝杆2上,其主体结构为相对所述丝杆2对称的两个倒钩。
所述丝杆2沿长度方向对称分布有斜面导向结构,所述卡扣3上倒钩与斜面导向结构处相抵接;所述螺纹按钮1和所述丝杆2均可相对自由旋转;所述丝杆2的螺距为1mm。
工作原理:
在没有装入药瓶4前,丝杆2和螺纹旋钮1都可自由旋转,装入药瓶4以后,药瓶4内壁会迫使卡扣3将丝杆2卡住(卡住丝杆2斜面导向结构);由于丝杆2被卡住,且丝杆2上面有斜面导向设计,因此在使用时用户只能将螺纹旋钮1旋转升起,由于螺纹作用,螺纹旋钮1可以根据用户意愿升起任意高度。调好后,将螺纹旋钮1直接按下,完成注射,由于卡扣3卡住丝杆2斜面导向结构而不是螺纹处,因此丝杆2很容易穿过卡扣3进行注射推进;需要换药时,直接将药瓶4拿下,则卡扣3会恢复到最初状态,此时即可将丝杆2反向旋转回退回去,以便下次使用。
以上所述仅为本发明的具体实施例而已,并不用于限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (5)
1.一种注射笔,其特征在于:包括螺纹按钮、丝杆、卡扣,所述螺纹按钮为一端开口的中空状设计,在其壁设置有螺纹;所述丝杆表面具有螺纹,其一端螺旋***所述螺纹按钮内部,另一端外露,用于推进药瓶进行注射;所述卡扣设置于所述螺纹按钮开口端,嵌套于所述丝杆上,其主体结构为相对所述丝杆对称的两个倒钩。
2.根据权利要求1所述的一种注射笔,其特征在于:所述螺纹按钮内壁螺纹长度为1~3cm。
3.根据权利要求1所述的一种注射笔,其特征在于:所述丝杆沿长度方向对称分布有光滑的斜面导向结构,所述卡扣上倒钩与所述斜面导向结构处相抵接。
4.根据权利要求1所述的一种注射笔,其特征在于:所述螺纹按钮和所述丝杆均可相对自由旋转。
5.根据权利要求1或2所述的一种注射笔,其特征在于:所述丝杆的螺距为0.5~1.5mm。
Priority Applications (1)
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CN201410844694.7A CN104436375A (zh) | 2014-12-30 | 2014-12-30 | 一种注射笔 |
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CN201410844694.7A CN104436375A (zh) | 2014-12-30 | 2014-12-30 | 一种注射笔 |
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Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0178023A2 (fr) * | 1984-10-08 | 1986-04-16 | Echangex S.A. | Dispositif pour l'administration de substances liquides ou solides |
EP0058536B1 (en) * | 1981-02-12 | 1986-04-16 | Robert Charles Turner | Dose metering plunger devices for use with syringes |
WO1988007874A1 (en) * | 1987-04-07 | 1988-10-20 | D.C.P. Af 1988 A/S | A dosage unit for dosing a number of measured quantities of a liquid, such as an insulin preparation, from a container, preferably a cartridge |
CN1035055A (zh) * | 1988-02-10 | 1989-08-30 | D.C.Paf1988有限公司 | 用于施以定量液体的剂量装置 |
CN1055668A (zh) * | 1990-04-04 | 1991-10-30 | 伊莱利利公司 | 指示剂量的注射笔 |
WO1996007443A1 (en) * | 1994-09-08 | 1996-03-14 | Owen Mumford Limited | Improvements relating to injection devices |
WO1996039214A1 (en) * | 1993-12-07 | 1996-12-12 | N.E. Holm A/S | A dosage unit for dosing measured amounts of a fluid |
WO2004064902A1 (de) * | 2003-01-21 | 2004-08-05 | Tecpharma Licensing Ag | Vorrichtung zur verabreichung einer vorgebbaren dosis eines flüssigen produkts |
CN101479003A (zh) * | 2006-05-11 | 2009-07-08 | 欧文蒙福德有限公司 | 注射装置 |
CN102325562A (zh) * | 2008-12-23 | 2012-01-18 | 赛诺菲-安万特德国有限公司 | 具有可重新设定的驱动机构的固定剂量注射装置 |
CN204582176U (zh) * | 2014-12-30 | 2015-08-26 | 江苏华阳电器有限公司 | 一种注射笔 |
-
2014
- 2014-12-30 CN CN201410844694.7A patent/CN104436375A/zh active Pending
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0058536B1 (en) * | 1981-02-12 | 1986-04-16 | Robert Charles Turner | Dose metering plunger devices for use with syringes |
EP0178023A2 (fr) * | 1984-10-08 | 1986-04-16 | Echangex S.A. | Dispositif pour l'administration de substances liquides ou solides |
WO1988007874A1 (en) * | 1987-04-07 | 1988-10-20 | D.C.P. Af 1988 A/S | A dosage unit for dosing a number of measured quantities of a liquid, such as an insulin preparation, from a container, preferably a cartridge |
CN1035055A (zh) * | 1988-02-10 | 1989-08-30 | D.C.Paf1988有限公司 | 用于施以定量液体的剂量装置 |
CN1055668A (zh) * | 1990-04-04 | 1991-10-30 | 伊莱利利公司 | 指示剂量的注射笔 |
WO1996039214A1 (en) * | 1993-12-07 | 1996-12-12 | N.E. Holm A/S | A dosage unit for dosing measured amounts of a fluid |
WO1996007443A1 (en) * | 1994-09-08 | 1996-03-14 | Owen Mumford Limited | Improvements relating to injection devices |
WO2004064902A1 (de) * | 2003-01-21 | 2004-08-05 | Tecpharma Licensing Ag | Vorrichtung zur verabreichung einer vorgebbaren dosis eines flüssigen produkts |
CN101479003A (zh) * | 2006-05-11 | 2009-07-08 | 欧文蒙福德有限公司 | 注射装置 |
CN102325562A (zh) * | 2008-12-23 | 2012-01-18 | 赛诺菲-安万特德国有限公司 | 具有可重新设定的驱动机构的固定剂量注射装置 |
CN204582176U (zh) * | 2014-12-30 | 2015-08-26 | 江苏华阳电器有限公司 | 一种注射笔 |
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Application publication date: 20150325 |