CN2860501Y - 一次性注射器 - Google Patents

一次性注射器 Download PDF

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Publication number
CN2860501Y
CN2860501Y CN 200520007690 CN200520007690U CN2860501Y CN 2860501 Y CN2860501 Y CN 2860501Y CN 200520007690 CN200520007690 CN 200520007690 CN 200520007690 U CN200520007690 U CN 200520007690U CN 2860501 Y CN2860501 Y CN 2860501Y
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syringe
disposable
rubber piston
syringe cylinder
utility
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王念景
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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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
    • A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston

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  • 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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

一种新型一次性注射器，它是一种医疗器械。它是由推拉杆与橡胶活塞嵌入相连接，橡胶活塞与注射器筒滑动相连接，针头与注射器筒挤压相连接，其特征是：在注射器筒前端内壁上，设置几个一次性使用限制点，这几个一次性使用限制点体积较小，不影响橡胶活塞的向前通过，但能阻挡橡胶活塞的反向通过，使一次性注射器只能一次性使用，是真正意义上的一次性使用注射器。为人们注射药液时，完全避免了病毒的交叉感染，且有结构简单、制造容易等优点。

Description

一次性注射器
技术领域  本实用新型是一种一次性注射装置，是一种医疗器械，是真正意义上的一次性使用注射器。
背景技术  众所周知，目前的一次性注射器是由针头、注射器筒、橡胶活塞、推拉杆组合而成。使用时，把针头插入药液，向后拉动推拉杆，带动橡胶活塞向后运动，药液就会进入注射器筒中，而后进行常规注射即可。现在常用的一次性注射器，虽然外包装上都印有一次性注射器，可是一次性注射器二次使用的现象仍然存在，这样就会出现病毒交叉感染，对人们产生巨大的危害。
发明内容  为了克服现在的一次性注射器存在二次使用的现象，本实用新型提供的一次性注射器，不但可以为人们注射药液，而且实现真正意义上的一次性使用。
本实用新型一次性注射器解决其技术问题所采取的技术方案是：推拉杆与向橡胶活塞嵌入相连接，橡胶活塞与注射器筒滑动相连接，针头与注射器筒挤压相连接。这里最关键的是在注射器筒前端内壁上，设置几个一次性使用限制点，这些点体积较小，呈三棱锥形，他们在注射器筒的同一横截面上，它们到注射器筒前端里面的距离要比橡胶活塞的厚度长0.5～1mm，它们前面的一个面所在的平面要与注射器筒的轴线相垂直。一次性使用限制点的大小不能影响注射药物时橡胶活塞向前通过，但能使推到注射器筒前端的橡胶活塞不被拉出来，刚生产出来的注射器，橡胶活塞不能推到注射器筒的前端，橡胶活塞的前端最多推到一次性使用限制点处，否则，注射器就不能用了。使用时，将针头插入药液中，向外拉动推拉杆，吸入药液，再排出注射器筒中的空气，再吸药液，直到达到要求，再进行注射。注射后，橡胶活塞已推到注射器筒的前端，当向外拉动拉杆时，橡胶活塞受到一次性使用限制点的阻碍作用，推拉杆的前端将从橡胶活塞中拉出来，而橡胶活塞就留在了注射器筒的前端，从而达到一次性注射器只能一次性使用的目的，实现了真正意义上的一次性使用。
本实用新型一次性注射器的有益效果是：它可以为人们注射药液，并且只能一次性使用，本实用新型是在注射器筒内上设置几个一次性限制点，结构简单，制造方便。
附图说明  下面结合附图和实施例对本实用新型作进一步说明。
图1是本实用新型一次性注射器的纵剖面结构图。
图2是图1中(2)上(5)处的横剖图面
图中，1、推拉杆，2、注射器筒，3、橡胶活塞，4、针头，5、一次性使用限制点。具体实施方式如图所示的实施例中，图1中推拉杆(1)的前端与橡胶活塞(3)嵌入相连接，橡胶活塞(3)与注射器筒(2)滑动相连接，注射器筒(2)与针头(4)挤压相连接，一次性使用限制点(5)与注射器筒(2)固定相连接(整体相连接)。这里主要是一次性使用限制点(5)体积较小，呈三棱锥形，它们到注射器筒(2)前端里面的距离要比橡胶活塞(3)厚度长0.5～1mm，一次性使用限制点(5)左边的一个面要与注射器筒(2)的轴线相垂直，注射药物时，一次性使用限制点(5)的大小不能影响具体有弹性的橡胶活塞(3)向前通过，但必须能阻挡住橡胶活塞(3)的反向通过。

Claims (1)

  1. 一种一次性注射器，由推拉杆与橡胶活塞嵌入相联接，橡胶活塞与注射器筒滑动相连接，注射器筒与针头挤压相连接，其特征是：在注射器筒前端内壁上，设置几个一次性使用限制点，这些点体积较小，呈三棱锥形，它们在注射器筒的同一横截面上，他们到注射器筒前端里面的距离要比橡胶活塞的厚度长0.5～1mm，他们的前面一个面所在的平面要与注射器筒的轴线相垂直。
CN 200520007690 2005-03-10 2005-03-10 一次性注射器 Expired - Fee Related CN2860501Y (zh)

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Cited By (17)

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Publication number Priority date Publication date Assignee Title
CN105263461A (zh) * 2013-03-15 2016-01-20 拉尼医疗有限公司 用于治疗化合物的口服递送的装置
US10252039B2 (en) 2009-12-24 2019-04-09 Rani Therapeutics, Llc Therapeutic agent preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US10300010B2 (en) 2010-12-23 2019-05-28 Rani Therapeutics, Llc Methods for delivering entanercept preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US10307579B2 (en) 2010-12-23 2019-06-04 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10314891B2 (en) 2010-12-23 2019-06-11 Rani Therapeutics, Llc Method for delivering pramlintide into a lumen of the intestinal tract using a swallowable drug delivery device
US10314892B2 (en) 2010-12-23 2019-06-11 Rani Therapeutics, Llc Method of delivering a somatostatin compound into a lumen of the intestinal tract using a swallowable drug delivery device
US10322167B2 (en) 2010-12-23 2019-06-18 Rani Therapeutics, Llc Method of delivering gonadotropin releasing hormone or an analogue thereof into a lumen of the intestinal tract using a swallowable drug delivery device
US10335463B2 (en) 2010-12-23 2019-07-02 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10350163B2 (en) 2010-12-23 2019-07-16 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10478396B2 (en) 2010-12-23 2019-11-19 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10487145B2 (en) 2010-12-23 2019-11-26 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10548850B2 (en) 2010-12-23 2020-02-04 Rani Therapeutics, Llc Therapeutic composition comprising insulin prepared for delivery into an intestinal tract
US10632251B2 (en) 2010-12-23 2020-04-28 Rani Therapeutics, Llc Device, system and methods for the oral delivery of therapeutic compounds
US10639272B2 (en) 2010-12-23 2020-05-05 Rani Therapeutics, Llc Methods for delivering etanercept preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US10752681B2 (en) 2010-12-23 2020-08-25 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10874840B2 (en) 2010-12-23 2020-12-29 Rani Therapeutics, Llc Preparation comprising exanatide for delivery into a lumen of the intestinal tract
US11439817B2 (en) 2009-08-03 2022-09-13 Incube Labs, Llc Swallowable capsule and method for stimulating incretin production within the intestinal tract

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US11872396B2 (en) 2009-08-03 2024-01-16 Incube Labs, Llc Swallowable capsule and method for stimulating incretin production within the intestinal tract
US11439817B2 (en) 2009-08-03 2022-09-13 Incube Labs, Llc Swallowable capsule and method for stimulating incretin production within the intestinal tract
US10493253B2 (en) 2009-12-24 2019-12-03 Rani Therapeutics, Llc Therapeutic agent preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US10252039B2 (en) 2009-12-24 2019-04-09 Rani Therapeutics, Llc Therapeutic agent preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US11376405B2 (en) 2009-12-24 2022-07-05 Rani Therapeutics, Llc Therapeutic agent preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US11338118B2 (en) 2009-12-24 2022-05-24 Rani Therapeutics, Llc Swallowable drug delivery device and methods of drug delivery
US11253686B2 (en) 2009-12-24 2022-02-22 Rani Therapeutics, Llc Swallowable drug delivery device and methods of drug delivery
US10987499B2 (en) 2009-12-24 2021-04-27 Rani Therapeutics, Llc Swallowable drug delivery device and method of delivery
US10603475B2 (en) 2009-12-24 2020-03-31 Rani Therapeutics, Llc Swallowable drug delivery device and methods of drug delivery
US10596359B2 (en) 2009-12-24 2020-03-24 Rani Therapeutics, Llc Therapeutic agent preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US10487145B2 (en) 2010-12-23 2019-11-26 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US11229684B2 (en) 2010-12-23 2022-01-25 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10478396B2 (en) 2010-12-23 2019-11-19 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10548850B2 (en) 2010-12-23 2020-02-04 Rani Therapeutics, Llc Therapeutic composition comprising insulin prepared for delivery into an intestinal tract
US10300010B2 (en) 2010-12-23 2019-05-28 Rani Therapeutics, Llc Methods for delivering entanercept preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US10350163B2 (en) 2010-12-23 2019-07-16 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10632251B2 (en) 2010-12-23 2020-04-28 Rani Therapeutics, Llc Device, system and methods for the oral delivery of therapeutic compounds
US10639272B2 (en) 2010-12-23 2020-05-05 Rani Therapeutics, Llc Methods for delivering etanercept preparations into a lumen of the intestinal tract using a swallowable drug delivery device
US10752681B2 (en) 2010-12-23 2020-08-25 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10864254B2 (en) 2010-12-23 2020-12-15 Rani Therapeutics, Llc Method of delivering gonadotropin releasing hormone or an analogue thereof into a lumen of the intestinal tract using a swallowable drug delivery device
US10874840B2 (en) 2010-12-23 2020-12-29 Rani Therapeutics, Llc Preparation comprising exanatide for delivery into a lumen of the intestinal tract
US10888517B2 (en) 2010-12-23 2021-01-12 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
US10926073B2 (en) 2010-12-23 2021-02-23 Rani Therapeutics, Llc Therapeutic agent preparations for delivery into a lumen of the intestinal tract using a swallowable drug delivery device
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US10314891B2 (en) 2010-12-23 2019-06-11 Rani Therapeutics, Llc Method for delivering pramlintide into a lumen of the intestinal tract using a swallowable drug delivery device
US11419812B2 (en) 2010-12-23 2022-08-23 Rani Therapeutics, Llc Methods for delivering etanercept preparations into a lumen of the intestinal tract using a swallowable drug delivery device
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