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CN104436369A - 一种注射器隐针机构 - Google Patents

一种注射器隐针机构 Download PDF

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Publication number
CN104436369A
CN104436369A CN201410844547.XA CN201410844547A CN104436369A CN 104436369 A CN104436369 A CN 104436369A CN 201410844547 A CN201410844547 A CN 201410844547A CN 104436369 A CN104436369 A CN 104436369A
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CN
China
Prior art keywords
syringe needle
syringe
inner cap
injector
described syringe
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
Application number
CN201410844547.XA
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English (en)
Inventor
李荣毓
王少锋
许云初
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU HUAYANG ELECTRICAL APPLIANCES Co Ltd
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JIANGSU HUAYANG ELECTRICAL APPLIANCES Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201410844547.XA priority Critical patent/CN104436369A/zh
Publication of CN104436369A publication Critical patent/CN104436369A/zh
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3202Devices for protection of the needle before use, e.g. caps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321Means for protection against accidental injuries by used needles
    • A61M5/3213Caps placed axially onto the needle, e.g. equipped with finger protection guards

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

本发明涉及一种注射器隐针机构,包括注射器,在所述注射器一端设置有药瓶和针头,该机构包括与所述注射器一端、所述针头设置端连接的针头外盖,嵌套于所述针头外盖内部的针头内盖,设置于所述针头内盖内、环绕所述药瓶端盖的弹簧;所述针头内盖依靠所述弹簧,可相对于所述针头外盖自由伸缩复位;在所述针头内盖端部设置有针头出孔。本发明将注射器针头隐藏于一空间内部,有效的避免病人在使用时产生的恐惧感,提高注射准确性,同时也可避免针头外露带来的不必要的伤害。

Description

一种注射器隐针机构
技术领域
本发明涉及一种注射器,具体公开一种注射器隐针机构。
背景技术
现有注射器多采用直接进针,针头裸露在外面,在病人使用时容易引起恐惧感,造成心理压力,从而可能导致注射不准确。同时由于针头在外,没有任何保护装置,病人在使用时,容易造成其他不必要的伤害。
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的注射器隐针机构,可有效避免病人在使用时产生的心理压力,提高注射准确性,同时可避免因注射器针头外漏产生的不必要伤害。
本发明所采用的技术方案是这样的:
一种注射器隐针机构,包括注射器,在所述注射器一端设置有药瓶和针头,该机构还包括与所述注射器一端、所述针头设置端连接的针头外盖,嵌套于所述针头外盖内部的针头内盖,设置于所述针头内盖内、环绕所述药瓶端盖的弹簧;所述针头内盖依靠所述弹簧,可相对于所述针头外盖自由伸缩复位;在所述针头内盖端部设置有针头出孔。
进一步地,所述针头内盖缩回所述针头外盖内部的极限距离大于所述针头的有效注射长度。
进一步地,在所述弹簧与所述药瓶端盖抵接处设置有环状弹簧压片,所述弹簧一端与所述针头内盖相抵接,另一端与所述弹簧压片相抵接。
综上所述,由于采用上述技术方案,本发明的有益效果是:
1、安装有该隐针机构的注射器,病人在使用过程中完全看不到针头,整个进针、注射以及拔出过程都是在本机构内部完成的,会大大降低病人看到针头时带来的恐惧感,从而更加有利于注射。同时隐针内盖与外盖的配合以及弹簧压片的行进深度都大大提高了产品在使用过程中的安全性。
2、本发明使得注射器针头不外露,使用过程中能有效避免不必要的伤害。
3、从结构上讲,本发明采用隐针内盖与隐针外盖分离的结构,同时隐针外盖与注射器之间通过卡接连接,这样使得装配与拆卸是更加方便。
附图说明
图1为本发明的结构示意图;
图2为本发明的隐针内盖结构图;
图3为本发明的隐针外盖结构图;
图4为本发明一种实施例结构图。
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1~4所示,一种注射器隐针机构,包括注射器,在所述注射器一端设置有药瓶5和针头2,该机构还包括与所述注射器一端、所述针头2设置端连接的针头外盖6,嵌套于所述针头外盖6内部的针头内盖1,设置于所述针头内盖1内、环绕所述药瓶5端盖的弹簧3;在所述弹簧3与所述药瓶5端盖抵接处设置有环状弹簧压片4,所述弹簧3一端与所述针头内盖1相抵接,另一端与所述弹簧压片4相抵接;所述针头内盖1依靠所述弹簧3,可相对于所述针头外盖6自由伸缩复位;所述针头2位于所述针头外盖6和所述针头内盖1围成的空间内,在所述针头内盖1端部设置有针头出孔。
所述针头内盖1缩回所述针头外盖6内部的极限距离大于所述针头2的有效注射长度,一来可保证针头2不外露,二来可保证有效注射。
在所述针头外盖6下端设置有倒扣结构,在所述注射器本体的内部设置有与所述倒扣结构相匹配的卡口,使所述针头外盖6与所述注射器本体之间刚好卡接,使得该注射器隐针机构安装拆卸更加方便,更有利于更换药瓶。
在所述针头外盖6下端内侧边缘设置有环绕其内壁的凸棱,在所述注射器本体与所述针头外盖6接触处设置有与所述凸棱相匹配的凹槽,使所述针头外盖6与所述注射器本体之间刚好卡接,使得该注射器隐针机构安装拆卸更加方便,更有利于更换药瓶。
在使用过程中,隐针内盖1与皮肤接触,然后将注射器前压,则完成进针动作,而在推动过程中针头外盖6和针头2都会前进,针头内盖1会在弹簧3作用下不会前进,始终与皮肤接触,待注射完成后,拔出针头2,针头内盖1亦会在弹簧3作用下复位。
所述针头内盖1和所述针头外盖6均类似圆台状,所述针头内盖1的底端大小大于所述针头外盖6的顶端大小且小于所述针头外盖6的底端大小,使得所述针头内盖1可嵌入所述针头外盖6内部而不滑出,两者结合有效的保证隐针注射器的正常注射使用。
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 (3)

1.一种注射器隐针机构,包括注射器,在所述注射器一端设置有药瓶和针头,其特征在于:该机构还包括与所述注射器一端、所述针头设置端连接的针头外盖,嵌套于所述针头外盖内部的针头内盖,设置于所述针头内盖内、环绕所述药瓶端盖的弹簧;所述针头内盖依靠所述弹簧,可相对于所述针头外盖自由伸缩复位;在所述针头内盖端部设置有针头出孔。
2.根据权利要求1所述的一种注射器隐针机构,其特征在于:所述针头内盖缩回所述针头外盖内部的极限距离大于所述针头的有效注射长度。
3.根据权利要求1所述的一种注射器隐针机构,其特征在于:在所述弹簧与所述药瓶端盖抵接处设置有环状弹簧压片,所述弹簧一端与所述针头内盖相抵接,另一端与所述弹簧压片相抵接。
CN201410844547.XA 2014-12-30 2014-12-30 一种注射器隐针机构 Pending CN104436369A (zh)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105944187A (zh) * 2016-05-25 2016-09-21 江苏德尔福医疗器械有限公司 一种注射进针深度可调的隐针机构
CN107405460A (zh) * 2015-10-17 2017-11-28 梅德塞尔有限公司 设置有安全保护系统的笔针
CN109078242A (zh) * 2018-09-30 2018-12-25 江苏德尔福医疗器械有限公司 用于预灌封注射器的注射装置
CN109414543A (zh) * 2016-05-06 2019-03-01 赛诺菲-安万特德国有限公司 注射器组件
CN110384841A (zh) * 2018-04-18 2019-10-29 贝克顿·迪金森公司 笔式针组件装置

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US5658259A (en) * 1995-10-19 1997-08-19 Meridian Medical Technologies, Inc. Dental cartridge assembly auto-injector with protective needle cover
US5984899A (en) * 1993-02-11 1999-11-16 Beech Medical Products, Inc. Needle protector device having a lockable protective cover which is unlockable during actuation
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CN1713930A (zh) * 2002-11-25 2005-12-28 特克法马许可公司 包括针保护设备的注射装置
CN1867368A (zh) * 2003-10-16 2006-11-22 特克法马许可公司 包括针头盖的注射装置
US20080167611A1 (en) * 2007-01-04 2008-07-10 Miller Stuart H Enveloping needle stick protection device
US20100298770A1 (en) * 2008-06-02 2010-11-25 Sta-Med, Llc Needle cover
CN204446812U (zh) * 2014-12-30 2015-07-08 江苏华阳电器有限公司 一种注射器隐针机构

Patent Citations (8)

* Cited by examiner, † Cited by third party
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US5984899A (en) * 1993-02-11 1999-11-16 Beech Medical Products, Inc. Needle protector device having a lockable protective cover which is unlockable during actuation
US5658259A (en) * 1995-10-19 1997-08-19 Meridian Medical Technologies, Inc. Dental cartridge assembly auto-injector with protective needle cover
CN1596138A (zh) * 2001-11-30 2005-03-16 诺沃挪第克公司 安全针组件
CN1713930A (zh) * 2002-11-25 2005-12-28 特克法马许可公司 包括针保护设备的注射装置
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US20080167611A1 (en) * 2007-01-04 2008-07-10 Miller Stuart H Enveloping needle stick protection device
US20100298770A1 (en) * 2008-06-02 2010-11-25 Sta-Med, Llc Needle cover
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107405460A (zh) * 2015-10-17 2017-11-28 梅德塞尔有限公司 设置有安全保护系统的笔针
CN109414543A (zh) * 2016-05-06 2019-03-01 赛诺菲-安万特德国有限公司 注射器组件
CN109414543B (zh) * 2016-05-06 2021-06-25 赛诺菲-安万特德国有限公司 注射器组件
US11103648B2 (en) 2016-05-06 2021-08-31 Sanofi-Aventis Deutschland Gmbh Injector assembly
CN105944187A (zh) * 2016-05-25 2016-09-21 江苏德尔福医疗器械有限公司 一种注射进针深度可调的隐针机构
CN110384841A (zh) * 2018-04-18 2019-10-29 贝克顿·迪金森公司 笔式针组件装置
CN109078242A (zh) * 2018-09-30 2018-12-25 江苏德尔福医疗器械有限公司 用于预灌封注射器的注射装置
CN109078242B (zh) * 2018-09-30 2024-05-14 江苏德尔福医疗器械有限公司 用于预灌封注射器的注射装置

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