WO2013185380A1 - 卡式全自动注射笔 - Google Patents

卡式全自动注射笔 Download PDF

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Publication number
WO2013185380A1
WO2013185380A1 PCT/CN2012/077665 CN2012077665W WO2013185380A1 WO 2013185380 A1 WO2013185380 A1 WO 2013185380A1 CN 2012077665 W CN2012077665 W CN 2012077665W WO 2013185380 A1 WO2013185380 A1 WO 2013185380A1
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Prior art keywords
needle
injection
pen body
push rod
pen
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PCT/CN2012/077665
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English (en)
French (fr)
Inventor
张有平
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甘肃成纪生物药业有限公司
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Publication of WO2013185380A1 publication Critical patent/WO2013185380A1/zh
Priority to IN270DEN2015 priority Critical patent/IN2015DN00270A/en

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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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • 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
    • A61M5/20—Automatic syringes, e.g. with automatically actuated piston rod, with automatic needle injection, filling automatically
    • A61M5/2033—Spring-loaded one-shot injectors with or without automatic needle insertion
    • 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
    • A61M5/32—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
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps

Definitions

  • the utility model belongs to the technical field of medical instruments, and relates to a card type automatic injection pen.
  • Automatic injection technology refers to an injection technique that is performed by non-medical personnel such as soldiers on the battlefield and patients who are injecting themselves inside and outside the hospital without medical staff.
  • non-medical personnel such as soldiers on the battlefield and patients who are injecting themselves inside and outside the hospital without medical staff.
  • automatic injection needles have been equipped in small batches for professional units engaged in chemical, anti-bacterial, and anti-atomic weapons, and are used for temporary emergency rescue on the battlefield.
  • the application to the general medical field is limited to the injection of insulin or a polypeptide drug.
  • the syringe Due to the structural limitation of the syringe, it is limited to a micro injection having a dose of less than 0.5 ml, so the use range of the syringe is greatly limited. It is suitable for a small number of drugs and local areas, and the structure of this automatic injection needle is very complicated, and the production cost is high. The domestic sales price of an automatic injection needle is 200-500 yuan.
  • the existing automatic injection needle is too complicated to be processed and manufactured, and is not convenient to use.
  • a similar syringe cannot be opened in the actual manufacturing process; in addition, it is important that a similar syringe may also be used.
  • the trace air remaining in the injection needle is injected into the human body to form a gas plug, which damages the human body.
  • the utility model aims to provide a card type automatic injection pen, which solves the problem that the structural design existing in the prior art is too complicated and difficult to process and manufacture; and it is also possible to inject a trace amount of air remaining in the injection needle into the human body, thereby damaging human health. problem.
  • the technical scheme adopted by the utility model is a card type automatic injection pen, which comprises a pen body and an outer sheath of the needle, the pen body and the outer sheath of the needle are connected by a screw, and a button is installed in the through hole at the bottom end of the pen body;
  • the needle outer sheath and the inner cavity of the pen body are provided with a drug-containing card type bottle, the double-blade injection needle is installed at the mouth end of the medicine-containing bottle type bottle, the outer edge set of the double-edged injection needle has a venting needle sleeve, and the needle outer sheath is provided.
  • a cap is provided at the top;
  • the inner surface of the bottom end of the pen body has an annular rib, and the inner diameter of the port of the button is consistent with the inner diameter of the annular rib; the inner cavity of the pen body is provided with a hook and a lock push rod, and the lower end of the hook is hinged with the lock push rod, and the lock push rod and the medicine are contained.
  • a rubber plug is connected at the bottom end of the bottle, a button spring is arranged between the button and the annular rib, and a lock push rod spring is arranged between the lock push rod and the annular rib.
  • the utility model has the beneficial effects that the intramuscular injection liquid medicine is used for multiple injections, the structure is simplified, the preparation is easy, and the trace air in the needle tube can be discharged, and the use is safer and more convenient.
  • Figure 1 is a front elevational view of the outer surface structure of the present invention
  • Figure 2 is a side view of the outer surface structure of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 4 is a schematic view showing the structure of the injection finished state of the present invention.
  • the card type automatic injection pen structure of the present invention comprises an upper half pen body 5 and a lower half needle outer sheath 9 , and the pen body 5 and the needle outer sheath 9 pass through Threaded connection, the button 1 is installed in the through hole at the bottom end of the pen body 5, and the pen holder 4 is mounted on the outer edge surface of the pen body 5; the needle outer cover 9 and the inner cavity of the pen body 5 are installed with the drug-containing bottle type 8
  • the top end of the drug-containing bottle 8 (bottle end) is equipped with a double-edged injection needle 10, and the double-edged injection needle 10 is provided with a venting needle cover 11 on the outer circumference.
  • the double-edged injection needle 10 before injection does not pierce the drug-containing cartridge. 8 bottle rubber plug, pressing the venting sleeve 11 at the time of injection, so that the double-edged injection needle 10 pierces the 8-port rubber plug of the medicated cassette, and the top of the outer sheath 9 is provided with a protective cap 13 and a protective cap 13 a contact surface with the venting sleeve 11 is provided with a cushion 12;
  • the inner surface of the bottom end of the pen body 5 is provided with an annular rib for positioning the hook 3, and the inner diameter of the port of the button 1 is identical to the inner diameter of the annular rib; the inner cavity of the pen body 5 is provided with the hook 3 and the lock push rod 7
  • the hook-shaped protrusion of the outer edge of the upper end of the hook 3 can be hooked on the annular rib, the lower end of the hook 3 is hinged with the lock push rod 7, and the lock push rod 7 is used for connecting with the rubber plug 14 at the bottom end of the medicated bottle 8 .
  • a button spring 2 is disposed between the button 1 and the annular rib, and a lock lever spring 6 is disposed between the lock push rod 7 and the annular rib.
  • the lower end of the lock push rod 7 is connected to the bottom end rubber plug of the medicated cartridge 8 by a screw.
  • the button 1 and the bottom end of the pen body 5 are sleeved according to the required mounting position through the positioning groove, that is, the slot position and the locking slot position are opened, the opening slot is connected with the locking slot, but the position is different, and the control of the button 1 and the pen body 5 is controlled. The effect is different.
  • the card type automatic injection pen of the utility model rotates the button 1 to the open state during use, and the needle is vertically aligned with the injection part to maintain stability.
  • the button 1 When the button 1 is pressed, the needle of the lock push rod 7 is injected into the human body, and after the liquid medicine is completely injected into the human body, the double-edged injection needle 10 is pulled out, and the needle insertion and the injection are automatically completed. It is easy to reset when used again, and it is convenient to load and unload the drug-containing bottle.
  • the venting sleeve 11 has an exhaust function, and the venting needle sleeve 11 is pushed to drive the double-blade injection needle 10 to pierce the rubber stopper.
  • the liquid medicine will squeeze a small amount of air in the needle tube with a slight pressure to prevent the air from entering the human body. Human body damage.
  • the use method of the card type automatic injection pen of the utility model is:
  • the preparation work Prepare the following items before injection: card-type automatic injection pen, the corresponding specification of the drug-containing bottle, disposable double-blade injection needle.
  • the button 1 is pressed, the hook 3 is disengaged from the annular rib, the lock push rod spring 6 is stretched, and the lock push rod 7 is pushed downward, and the bottom of the drug-containing bottle 8 is contained.
  • the rubber stopper 14 at the end moves, and after the medical liquid is completely injected into the human body, the double-edged injection needle 10 is pulled out.
  • the venting needle cover of the sterile double-edged injection needle is used for one time to prevent stab wounds.
  • Unscrew the card-type automatic injection needle outer sheath 9 take out the used drug-containing bottle and the disposable sterile double-blade injection needle and dispose according to the regulations, and install the needle outer sheath 9.

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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

一种卡式全自动注射笔，包括笔身（5）和针外护套（9），笔身（5）底端安装有按钮（3）；针外护套（9）与笔身（5）内部空腔安装有含药卡式瓶（8），含药卡式瓶瓶口端安装的双刃注射针头（10）外周套装有排气针套（11）；笔身（5）内部空腔安装有挂钩（3）和锁推杆（7），笔身（5）底端内表面开有环形凸棱用于对挂钩（3）的钩挂定位，锁推杆（7）用于与含药卡式瓶（8）底端的胶塞连接，按钮（3）与环形凸棱之间设置有按钮弹簧（2），锁推杆（7）与环形凸棱之间设置有锁推杆弹簧（6）。该卡式全自动注射笔能够多次注射使用，使用方便。

Description

卡式全自动注射笔 技术领域
本实用新型属于医疗器械技术领域，涉及一种卡式全自动注射笔。
 背景技术
在医疗机构，给患者注射往往是由医护人员来完成，其注射的操作过程繁杂，用时较长，但在某些急救领域，时间往往就是生命，所以，自动进针而自动推药的注射技术应运而生。“自动注射技术”是指不经医务工作者操作或指导，由非医务人员如士兵在战场、患者在医院内外自行进行注射的注射技术。自动注射针在瑞典、美国、法国、俄罗斯等少数国家已小批量装备于从事防化学、防细菌、防原子武器杀伤的专业部队，用于战场临时急救。应用于普通医疗领域的还只限于胰岛素或多肽类药物的注射，由于这种注射器的结构限制，其只局限于给药量小于0.5ml的微量注射，所以这种注射器的使用范围受到大大限制，适用于少数药品和局部领域，且这种自动注射针的结构非常复杂，生产成本很高，一支自动注射针的国内销售价格在200～500元人民币。
现有的自动注射针，由于其结构过于复杂，难以加工制造，使用起来也不太方便，类似的注射器在实际生产制造中，无法开模具制造；另外，很重要的一点是类似的注射器还可能将注射针管内残存的微量空气注入人体，形成气栓，损害人体。
 技术问题
本实用新型的目的是提供一种卡式全自动注射笔，解决了现有技术中存在的结构设计过于复杂，难以加工制造；还可能将注射针管内残存的微量空气注入人体，损害人体健康的问题。
技术解决方案
本实用新型所采用的技术方案是，一种卡式全自动注射笔，包括笔身和针外护套，笔身和针外护套通过螺纹连接，笔身底端通孔中安装有按钮；针外护套与笔身内部空腔安装有含药卡式瓶，含药卡式瓶瓶口端安装有双刃注射针头，双刃注射针头外周套装有排气针套，针外护套的顶端设置有护帽；
笔身底端内表面开有环形凸棱，按钮的端口内径与环形凸棱内径一致；笔身内部空腔安装有挂钩和锁推杆，挂钩下端与锁推杆铰接，锁推杆与含药卡式瓶底端的胶塞连接，按钮与环形凸棱之间设置有按钮弹簧，锁推杆与环形凸棱之间设置有锁推杆弹簧。
 有益效果
本实用新型的有益效果是，用于肌肉注射药液，实现了多次注射使用，结构简化，容易制作，能够排出针管内微量空气，使用更加安全、方便。
附图说明
图1是本实用新型外表面结构的前视图；
图2是本实用新型外表面结构的侧视图；
图3是图1中的A-A截面示意图；
图4是本实用新型注射完毕状态的结构示意图。
图中，1.按钮，2.按钮弹簧，3.挂钩，4.笔挂，5.笔身，6.锁推杆弹簧，7.锁推杆，8.卡式瓶，9.针外护套，10.双刃注射针头，11.排气针套，12.缓冲垫，13.护帽，14.胶塞。
 本发明的实施方式
下面结合附图和具体实施方式对本实用新型进行详细说明。
参照图1、图2、图3，本实用新型的卡式全自动注射笔结构是，包括上半截的笔身5和下半截的针外护套9，笔身5和针外护套9通过螺纹连接，笔身5底端通孔中安装有按钮1，笔身5底端外沿表面安装有笔挂4；针外护套9与笔身5内部空腔安装有含药卡式瓶8，含药卡式瓶8顶端（瓶口端）安装有双刃注射针头10，双刃注射针头10外周套装有排气针套11，注射前双刃注射针头10没有刺穿含药卡式瓶8瓶口胶塞，注射时压迫排气针套11才使得双刃注射针头10刺穿含药卡式瓶8瓶口胶塞，针外护套9的顶端设置有护帽13，护帽13与排气针套11的接触面设置有缓冲垫12；
笔身5底端内表面设置有一环形凸棱，用于对挂钩3的钩挂定位，按钮1的端口内径与环形凸棱内径一致；笔身5内部空腔安装有挂钩3和锁推杆7，挂钩3上端外沿的钩形凸块能够钩挂在环形凸棱上，挂钩3下端与锁推杆7铰接，锁推杆7用于与含药卡式瓶8底端的胶塞14连接，按钮1与环形凸棱之间设置有按钮弹簧2，锁推杆7与环形凸棱之间设有锁推杆弹簧6。
锁推杆7的下端与含药卡式瓶8底端胶塞通过螺旋方式连接。
按钮1与笔身5底端通过定位槽根据需要的安装位置套接，即开启槽位置和锁闭槽位置，开启槽与锁闭槽联通，但位置不同，对按钮1与笔身5的控制效果不同。
本实用新型的卡式全自动注射笔，使用时将按钮1旋至开启状态，针头垂直对准注射部位，保持稳定。按下按钮1，锁推杆7针头注入人体后，保证药液全部注入人体后，拔出双刃注射针头10，即可自动完成进针和注药。再次使用时复位简单，含药卡式瓶装卸方便。
排气针套11带有排气功能，推动排气针套11，会带动双刃注射针头10刺穿胶塞，药液会随微量压力挤出针管内微量的空气，避免了空气进入人体对人体的伤害。
本实用新型的卡式全自动注射笔的使用方法是：
一、准备工作：注射前准备好以下物品：卡式全自动注射笔，相应规格的含药卡式瓶，一次性使用无菌双刃注射针头。
二、卡式全自动注射笔安装：
1、取下排气针帽11，旋开针外护套9；
2、将按钮1旋至自锁状态（按钮弹簧处于压缩状态）；
3、取一支待用的含药卡式瓶8，将锁推杆7前端与含药卡式瓶8底端的活塞连接好，并用力向锁推杆7方向推动含药卡式瓶8，挂钩3上端外沿的钩形凸块钩挂在环形凸棱上，锁推杆弹簧6处于压缩状态；
4、取一次性使用无菌双刃注射针头10，将其安装在含药卡式瓶8瓶口的铝盖上，推动排气针帽11使得双刃注射针头10刺穿含药卡式瓶8的瓶口胶塞，直到双刃注射针头10有少许药液流出；旋上针外护套9。
三、注射操作过程，参照图4：
1、拔下排气针套11。
2、将按钮1旋至开启状态，针头垂直对准注射部位，保持稳定。
3、将双刃注射针头10注入人体后，按下按钮1，挂钩3从环形凸棱上脱开，锁推杆弹簧6伸张，用力向下推动锁推杆7，含药卡式瓶8底端的胶塞14移动，等药液全部注入人体后，拔出双刃注射针头10。
注射完毕后，将一次性使用无菌双刃注射针头的排气针套盖上，以防止刺伤。旋开卡式全自动注射笔针外护套9，将用完的含药卡式瓶和一次性使用无菌双刃注射针头取出并按规定处理，装上针外护套9。用75%酒精棉球擦拭卡式全自动注射笔外壁消毒，下次备用。

Claims (5)

  1. 一种卡式全自动注射笔，其特征在于：包括笔身（5）和针外护套（9），笔身（5）和针外护套（9）通过螺纹连接，笔身（5）底端通孔中安装有按钮（1）；针外护套（9）与笔身（5）内部空腔安装有含药卡式瓶（8），含药卡式瓶（8）瓶口端安装有双刃注射针头（10），双刃注射针头（10）外周套装有排气针套（11），针外护套（9）的顶端设置有护帽（13）；
    笔身（5）底端内表面开有环形凸棱，按钮（1）的端口内径与环形凸棱内径一致；笔身（5）内部空腔安装有挂钩（3）和锁推杆（7），挂钩（3）下端与锁推杆（7）铰接，锁推杆（7）与含药卡式瓶（8）底端的胶塞（14）连接，按钮（1）与环形凸棱之间设置有按钮弹簧（2），锁推杆（7）与环形凸棱之间设置有锁推杆弹簧（6）。
  2. 根据权利要求1所述的卡式全自动注射笔，其特征在于：所述的护帽（13）与排气针套（11）的接触面设置有缓冲垫（12）。
  3. 根据权利要求1所述的卡式全自动注射笔，其特征在于：所述的双刃注射针头（10）在注射前没有刺穿含药卡式瓶（8）瓶口胶塞，注射时双刃注射针头（10）才刺穿含药卡式瓶（8）瓶口胶塞。
  4. 根据权利要求1所述的卡式全自动注射笔，其特征在于：所述的挂钩（3）在注射前上端外沿的钩形凸块钩挂在环形凸棱上，注射时挂钩（3）的钩形凸块与环形凸棱脱开。
  5. 根据权利要求1所述的卡式全自动注射笔，其特征在于：所述的笔身（5）底端外沿表面安装有笔挂（4）。
PCT/CN2012/077665 2012-06-14 2012-06-27 卡式全自动注射笔 WO2013185380A1 (zh)

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