CN1585657A - 牙科注射器 - Google Patents
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- 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
- A61M5/32—Needles; 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
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
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- 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
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- 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
- A61M5/3129—Syringe barrels
- A61M5/3137—Specially designed finger grip means, e.g. for easy manipulation of the syringe rod
- A61M2005/3139—Finger grips not integrally formed with the syringe barrel, e.g. using adapter with finger grips
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- 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
- A61M5/002—Packages specially adapted therefor, e.g. for syringes or needles, kits for diabetics
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- 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
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- General Health & Medical Sciences (AREA)
- Public Health (AREA)
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
一种牙科注射器或注射器(200),用于注射容纳在药物管状瓶(230)中的麻醉剂。上述注射器(200)包括:一个套管(202),上述套管具有通过一个本体相连接的一个注射针末端和一个柱塞末端;一个柱塞组件(204),其附着在上述套管上,在柱塞末端设置有柱塞;设置在上述套管上的一个管状瓶槽(218),上述槽的尺寸恰能接收药物管状瓶(230)。一个注射针组件槽(222),位于本体内注射针末端,用于接收来自本体侧的注射针组件。一个位于套管注射针末端的座,接收并定位套管(202)内相应的注射针组件(208)的座部分(244)。通过向套管内压下柱塞,以注射针组件(208)的穿透器(236)刺穿管状瓶(230),并牢固地定位组件。
Description
技术领域
本发明涉及一种新型牙科注射器。
背景技术
在牙科注射器技术中,传统的注射器适于允许牙医将其拇指伸入注射器的拇指环中,在注射器最初刺入后回缩注射器柱塞,向后拉柱塞并观察麻醉剂管状瓶以判断是否有血入抽到注射器中,以确定他没有碰到血管。如果有血,表明牙医必须再找一块新地方作为注射点,其目的是避免将麻醉剂顺着血管注入血流。这样做有两个原因:
1、麻醉剂通常含有肾上腺素,其可能会对心率产生不利影响;
2、如果麻醉剂被血管从注射地方带走,将会使该地方失去麻醉效果。
这样,与医生通常使用的整体一次性药物注射器相反,牙科注射器具有可重复使用的金属框架。
图1显示了现有技术中注射器,包括一个金属主体,其一侧开口,以容纳一个透明的塑料麻醉剂管状瓶,其以圆筒形式盛有局部麻醉剂;在注射针的末端以能够穿透的形式进行密封的密封垫,以及位于注射器柱塞的末端的弹性密封垫。柱塞包括一个拇指环,一个轴杆,一个位于轴杆末端管状瓶的叉部。操作时,管状瓶插入到金属本体中。金属本体在一个表面上设置螺钉端。在拇指环上施加压力,将叉部推进到弹性橡胶密封垫中。沿着在注射器末端形成的螺钉端上面的螺纹拧入注射针,从而使药物穿透器,主要是短的注射针,穿透管状瓶的末端密封垫。这时可以注射药物,或是可以向回拉柱塞倒钩,牙医通过看到是否有血抽入到药物管状瓶中以测试针尖与血管的距离。
现有技术存在的问题是注射针的螺纹必须紧密配合,使得很难从金属本体的螺纹上取下注射针。在实际操作中,注射针是粘着血液并且锋利的物体,其包含人体的血液,并且如果操作者被上述注射针刺破的话会出现生物危害,因而很难实现取下针头。操作者通常必须施加很大的力从金属本体上取下注射针,操作者的手非常接近危险的锋利物体。
Baldwin的美国专利US3848593涉及一种可更换的注射针固定装置,但是仍然需要在注射针上施加很大旋转扭矩。
发明内容
本发明寻求通过一种非螺纹的注射针固定装置消除上述问题。
本发明的目的之一是提供一种注射器,其能不需要在注射针附近消除施加旋松力,上述旋松力有可能超过锋利的污染注射针的断裂强度,本发明提供一种容易侧装的注射器,可以很容易地去除注射针装置。
附图说明
图1是现有技术中注射器的正面图;
图2是本发明注射器各独立部分的分解正面图;
图3是注射本体组装后的类似正面图;
图4是注射针组件插入注射器本体的放大正面图;
图4(a)是注射器本体的仰视图;
图4(b)是注射针组件的仰视图;
图5是注射针组件滑入注射器的注射器的正面图;
图6是细颈瓶压下注射针组件,进入工作状态的类似正面图;
图7是具有保护性消毒帽的注射针组件的附图;
图8是示出有注射针组件的注射器本体的剖面图,设置在其中的注射针组件为非剖面图。
具体实施方式
通过公开了本发明一个实施例的附图,可以更加清楚地描述本发明的其他目的和特征。然而,应当理解,附图的设计仅是为了说明的目的,而不是限制本发明的范围。
在所提供的优选实施例中,如图2所示,注射器,通常指200,包括一个新型的套管202,常规的柱塞组件204通过螺纹206拧入套管202。如图7所示消毒包装中的注射针组件208包括一个穿透器保护装置210和一个注射针保护装置212。
如图3所示,柱塞组件204拧在套管202上,柱塞214向外拉回,从而使叉部216插入套管202内的开口218。然后,从注射针组件208上取下穿透器帽210,轴杆220插入在套管的槽222中(图3、4)。如图5所示,开口224足够大,以使凸缘226通畅不受阻碍地进入。
接下来,将药物管状瓶230插入开口218,向内部推拇指环214(图6),叉部216接合在活塞232上,并将整个药物管状瓶230推进到注射针组件208。药物穿透器236刺透橡胶膜234,然后将管状瓶末端238压向凸缘226,推动注射针组件到挡件241、242后面,如剖切掉挡件的图8所示,直到圆锥形凸缘表面244吻合圆锥形套管底面246,以牢固地使注射针就位。
图4A是套管202的仰视图。图4B是注射针组件208显示了从轴杆220中间剖开的仰视图。斜面223(图4A)有助于引导轴杆220(图4B)进入槽222(图4A)。图5显示了在柱塞214推进到活塞232之前,药物管状瓶230位于注射针组件208上面,且注射针组件208推进至挡件241、242后面,直到圆锥形凸缘表面244与套管202的内部圆锥端面246相吻合,图8显示了从其中心线的剖面图。
如图6所示,可以设置如250所示的锁扣装置,其能在恰当位置锁定药物管状瓶,从而将针头组件208牢固地固定在管套202上。去除药物管状瓶时,按压插销250上的拉手252,以使棘爪254从管状瓶230的头部脱离。
完全收回柱塞214后,叉部从活塞232上分离,药物管状瓶230从注射器套管202中拉出,为该病人换入另外一种管状瓶。或是,在去除药物管状瓶230后,不用施加很大的力就能去除注射针组件208,处理注射针组件208后,整个管套202高压蒸汽消毒。为了去除注射针组件,向上推动图6所示的下部凸缘260,然后使注射针组件滑出槽。如果同一病人允许继续使用同一注射针组件,而只更换药物管状瓶230。使用后,管状瓶230和注射针组件208丢弃,套管202和柱塞组件204拧下进行高压蒸汽消毒。
因而,虽然显示并描述了本发明的一些实施例,应当理解在不背离如后附权利要求限定的保护范围和精神的情况下,可以做多种变化和修饰。
Claims (3)
1.一种注射器,用于注射容纳在药物管状瓶中的麻醉剂,所述注射器包括:
一个套管,上述套管具有通过一个本体相连接的一个注射针末端和一个柱塞末端;
一个柱塞组件,其附着在上述套管上,在柱塞末端设置有柱塞;
一个设置在上述套管内的管状瓶槽,上述槽的尺寸恰能接收药物管状瓶;
一个注射针组件槽,位于本体内靠近注射针末端,用于从本体侧面接收注射针组件;
一个位于上述注射针末端的座,用于接收并定位套管内相应的注射针组件的座部分;
通过向套管内压下柱塞,以注射针组件的穿透器刺穿管状瓶,并牢固地定位该组件。
2.一种牙科注射器,用于注射存储在药物管状瓶内的麻醉剂,上述注射器包括:
一个套管,上述套管具有通过一个本体相连接的一个注射针末端和一个柱塞末端;
一个柱塞组件,其附着在上述套管上,在柱塞末端设置有柱塞;
一个设置在上述套管内的管状瓶槽,上述槽的尺寸恰能接收药物管状瓶;
一个注射针组件,上述注射针组件包括:
一个注射针,
一个锥形的注射针座,
一个与注射针方向相背设置的穿透器,
一个穿透器盖,
及一个注射针盖,可连接在穿透器盖上,以完全封闭并保护注射针组件,
一个注射针组件槽,位于本体上靠近注射针末端,用于从本体侧面接收注射针组件;
一个位于上述注射针末端的座,用于接收并定位套管内相应的注射针组件的座部分;
通过向套管内压下柱塞,以注射针组件的穿透器刺穿管状瓶,并牢固地定位该组件。
3.一种使用牙科注射针的方法,包括下述步骤:
握住一个用于注射存储在药物管状瓶内的麻醉剂的牙科注射器,上述注射器包括:一个套管,上述套管具有通过一个本体相连接的一个注射针末端和一个柱塞末端;一个柱塞组件,其附着在上述套管上,在柱塞末端设置有柱塞;设置在上述套管上的一个管状瓶槽,上述槽的尺寸恰能接收药物管状瓶;
拉出柱塞至活动极限,
去除注射针组件座的穿透器盖,以露出注射针组件座;
通过套管内的注射针组件槽滑入注射针组件座;
通过位于注射针组件座和套管座上的相互配合的圆锥面,注射针组件座靠在套管座上,使注射针组件牢固地定位在套管上;
通过形成在套管上的管状瓶槽插入药物管状瓶;
推压柱塞以使穿透器穿透药物管状瓶;
去除注射针盖;
注射药物管状瓶内的药物;
拉出注射针;并
将药物管状瓶向柱塞侧滑动,以将柱塞和注射针组件一起去除抛弃。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/008,373 | 2001-11-13 | ||
US10/008,373 US6764471B2 (en) | 2000-11-13 | 2001-11-13 | Dental syringe |
Publications (2)
Publication Number | Publication Date |
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CN1585657A true CN1585657A (zh) | 2005-02-23 |
CN1304065C CN1304065C (zh) | 2007-03-14 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CNB028225317A Expired - Fee Related CN1304065C (zh) | 2001-11-13 | 2002-11-13 | 牙科注射器 |
Country Status (10)
Country | Link |
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US (1) | US6764471B2 (zh) |
EP (1) | EP1443993B1 (zh) |
JP (1) | JP2005508713A (zh) |
KR (1) | KR100808768B1 (zh) |
CN (1) | CN1304065C (zh) |
AT (1) | ATE552022T1 (zh) |
CA (1) | CA2466507A1 (zh) |
ES (1) | ES2384961T3 (zh) |
RU (1) | RU2004115638A (zh) |
WO (1) | WO2003041769A1 (zh) |
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DE1069835B (de) * | 1954-09-16 | 1959-11-26 | S. ß- R. J. Everett & Co. Limited, Thornton Heath, Surrey, und Bernard Camber, London (Großbritannien) | Spritzengestell für eine durch eine seitliche Gestellöffnung einführbare Ampulle |
US3848593A (en) | 1970-10-09 | 1974-11-19 | Affiliated Hospital Prod | Side loading disposable carpule syringe |
US4931040A (en) * | 1988-04-13 | 1990-06-05 | Habley Medical Technology | Safety syringe having a combination needle cannula and articulating hub for retracting said cannula into a medication carpule |
JPH02297342A (ja) * | 1988-09-28 | 1990-12-07 | Terumo Corp | 両刀針形の医療用針とホルダーを用いる採血及び/又は注射装置、並びに該装置に用いる両刀針形の医療用針及びホルダー |
US5997512A (en) * | 1998-03-04 | 1999-12-07 | Shaw; Thomas J. | Retractable dental syringe |
CN2350068Y (zh) * | 1998-12-09 | 1999-11-24 | 文彰烈 | 牙科麻药注射器 |
-
2001
- 2001-11-13 US US10/008,373 patent/US6764471B2/en not_active Expired - Lifetime
-
2002
- 2002-11-13 CN CNB028225317A patent/CN1304065C/zh not_active Expired - Fee Related
- 2002-11-13 JP JP2003543656A patent/JP2005508713A/ja active Pending
- 2002-11-13 AT AT02789604T patent/ATE552022T1/de active
- 2002-11-13 WO PCT/US2002/036329 patent/WO2003041769A1/en active Application Filing
- 2002-11-13 KR KR1020047007082A patent/KR100808768B1/ko active IP Right Grant
- 2002-11-13 EP EP02789604A patent/EP1443993B1/en not_active Expired - Lifetime
- 2002-11-13 ES ES02789604T patent/ES2384961T3/es not_active Expired - Lifetime
- 2002-11-13 CA CA002466507A patent/CA2466507A1/en not_active Abandoned
- 2002-11-13 RU RU2004115638/14A patent/RU2004115638A/ru not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106421990A (zh) * | 2016-08-05 | 2017-02-22 | 宁波口腔医院有限公司 | 角度可调节碧兰麻剂注射器 |
Also Published As
Publication number | Publication date |
---|---|
US20030069544A1 (en) | 2003-04-10 |
CN1304065C (zh) | 2007-03-14 |
EP1443993A4 (en) | 2009-09-16 |
ES2384961T3 (es) | 2012-07-16 |
ATE552022T1 (de) | 2012-04-15 |
US6764471B2 (en) | 2004-07-20 |
RU2004115638A (ru) | 2005-03-10 |
KR100808768B1 (ko) | 2008-02-29 |
JP2005508713A (ja) | 2005-04-07 |
EP1443993B1 (en) | 2012-04-04 |
EP1443993A1 (en) | 2004-08-11 |
KR20040065558A (ko) | 2004-07-22 |
CA2466507A1 (en) | 2003-05-22 |
WO2003041769A1 (en) | 2003-05-22 |
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Granted publication date: 20070314 Termination date: 20171113 |