CN105828855B - 自动注射器 - Google Patents
自动注射器 Download PDFInfo
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- 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
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- A61M5/2466—Ampoule syringes, i.e. syringes with needle for use in combination with replaceable ampoules or carpules, e.g. automatic with sealing means to be broken or opened by piercing without internal pressure increase
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Abstract
一种笔式自动注射器,具有:外壳(12、14),具有近端(18)和远端(16);内壳(84),在其中具有药筒(74),所述药筒(74)包含药剂,并且其一端被可刺穿件(80)密封;针座(64),具有流体相通的第一和第二刺尖(68、70);致动组件(28),用于把致动装置从第一位置移动至激活位置,在该激活位置,第一刺尖(68)在近端(18)从外壳(12、14)向外伸出,并且第二刺尖(70)刺穿可刺穿件(80);位于远端(16)的第一触动开关(22),以及位于近端(18)的第二触动开关(98),该布置形式使得必须先激活第二触动开关(98)才允许激活第一触动开关(22)。
Description
技术领域
本发明涉及一种医疗器材,更确切地说,涉及称为自动注射器的输送装置,所述自动注射器用于向患者体内注射药剂。
背景技术
自动注射器在本领域中是众所周知的,正如前面提到的,自动注射器用于向患者体内注射药剂。注射通常由患者完成。某些致敏反应(例如接触花生、贝类、某些药品、毒素等)可能在一些个体中间导致过敏反应。典型情况下,过敏反应会导致过敏性休克,过敏性休克会造成血压骤降。还可能出现其它反应,例如气道收缩。
为了应对这种反应,用户可随身携带自动注射器,以注射能够减轻过敏反应的药物。典型情况下,这种注射药剂属于肾上腺素类。如上所述,自动注射器在本领域中是已知的,并有各种构造。典型情况下,用户应把第一端抵住身体表面(通常是大腿),然后激活触动开关,以开始注射过程。但是,考虑到用户当时的状况,用户在慌乱下可能把错误的一端抵在大腿上。这可能导致用户使自动注射器朝远离预定注射部位的方向动作。当然,这是非常令人讨厌的,因为用户通常仅携带单次注射计量,除非有其它的药剂来源,否则过敏反应不能得到治疗。
发明内容
因此,本发明的一个目的是提供一种自动注射器,所述自动注射器能确保一致、可靠的激活。
根据本发明的一个方面,提供一种自动注射器,包括:外壳,具有近端和远端;内壳,在内壳中具有药筒,所述药筒包含药剂,药筒的一端被可刺穿件密封;针座,针座具有第一和第二刺尖,所述第一和第二刺尖流体相通;致动组件,致动组件用于把致动装置从第一存储位置移动至激活位置,在该激活位置,所述第一刺尖在近端从所述外壳向外伸出,并且所述第二刺尖刺穿所述可刺穿件;位于远端的第一触动开关,所述触动开关在操作时导致所述致动组件的激活,以及位于近端的第二触动开关,该布置形式使得必须先激活所述第二触动开关才允许激活所述第一触动开关。
所述外壳优选由彼此锁紧在一起的两个部分形成。锁紧方式可为任何典型方式,例如利用夹子和/或紧固装置(例如螺钉)锁紧。
所述药筒可从本领域中已知的药筒选择。典型情况下,所述药筒是包含药剂的细长形容器。通过使所述药筒的至少一端被可刺穿件密封来使药剂包含在所述药筒中。所述可刺穿件可包括药筒护帽,或者,可替代地,所述可刺穿件可包括密封内部腔体的柱塞。出于本发明的实际应用的考虑,优选采用药筒护帽作为具有所述可刺穿件的部件。
所述针座优选承载植入注射针,如本领域中已知的,所述注射针具有第一和第二刺尖。所述第一和第二刺尖流体相通,这是必要的,目的是使药剂可从药筒流至注射部位。
所述致动组件优选包括上构件和下构件。术语“上”和“下”是相对的,在具体应用中,术语“上”指致动组件的最靠近自动注射器的远端的部分。与此相反,术语“下”指致动组件的更靠近自动注射器的近端的部分。
所述致动组件利用安装在所述上构件和所述下构件之间的压缩弹簧把所述上构件和所述下构件锁紧在一起。安装在远端的触动开关用于从所述上构件释放所述下构件。所述弹簧用于使用足够的力驱动所述下构件,使得针头从所述外壳向外伸出,并且所述药筒被针头刺穿。
如上所述,布置有位于远端的第一触动开关和位于近端的第二触动开关。这种布置形式使得只有在所述第二触动开关被患者激活时或者用户把所述自动注射器抵在注射部位上按压时,才会导致所述致动组件移动至可被所述第一触动开关致动的位置。
在激活后,针座会返回至使得针不再从外壳向外伸出的位置。
所述自动注射器优选具有电路板和电池。所述自动注射器可内置有许多不同的特征。因此,与所述自动注射器相关的一个主要问题是,需要使用所述自动注射器的患者可能容易忘记随时携带所述自动注射器。为了克服此问题,所述自动注射器可通过电子方式联接至用户的手机。一旦手机与所述自动注射器之间分开特定距离,就会向用户提醒,提示所述自动注射器不在身边。所述提醒可为任何适当的形式,包括听觉或视觉提醒。
其它特征可包括:一旦所述自动注射器被激活,它就会向一个或多个地点通知其已被使用。此特征可与GPS能力结合使用,以定位使用地点,并确保患者不会处于困境。例如,所述装置可具有向医生或其它医疗中心发送消息以告知其已被使用的能力。
所述装置还可用于监测该装置暴露在环境条件下的状况。对于某些对热量很敏感的药物,这可能很重要。若所述装置在足够的热量中暴露一定时间,则会发送一条消息,告知药物可能已经变质。这可用于自动地向用户转寄替代装置。
类似地,所述装置还可被编程为在到达失效日期时自动订货。
而且,如果由于某种原因需要第二次注射,可对所述装置进行编程,使其具有定位附近区域中的其它装置的能力。
用于发送关于该装置已被使用的通知消息的功能很容易内置到所述装置中。这样,在激活前,两个金属触点可处于常开位置。一旦所述致动组件移动,就能使两个电触点彼此接触,从而发送信号。
附图说明
在对本发明进行总体说明后,下面将参照示出本发明的一种实施方式的附图来说明本发明,在附图中:
图1是本发明的自动注射器的部件分解图;
图2是自动注射器处于储存位置时的截面图;
图3是示出护帽的移除方式的截面图;
图4是示出开始按压第二触动开关时的截面图;
图5是示出开始激活第一触动开关时的截面图;
图6是示出自动注射器在激活期间的截面图;
图7是示出自动注射器完全激活后的截面图;
图8是示出自动注射器在激活结束时的截面图;
图9是示出针头缩回时的截面图;
图10是示出自动注射器在用过之后盖好盖子时的截面图;
图11是自动注射器处于图3中所示的位置时的剖切透视图;
图12是自动注射器处于图4中所示的位置时的剖切透视图;
图13是自动注射器处于图5中所示的位置时的剖切透视图;
图14是自动注射器处于图6中所示的位置时的剖切透视图;和
图15是自动注射器处于图7中所示的位置时的剖切透视图。
具体实施方式
请参照附图中的标号更细致地查看附图,在附图中示出了一般以标号10标明的自动注射器。自动注射器10用于注射或输送物质。
自动注射器10具有外壳,所述的外壳的特征在于第一半外壳12和第二半外壳14。为了本公开的目的,申请人会提及总体以标号16标明的远端和总体以标号18标明的近端。在此使用的术语“远端”指远离注射部位的一端,而术语“近端”指最靠近注射部位的一端。
在远端16布置有按钮形式的触动开关22。电池24和印刷电路板26紧贴在触动开关22的下方安装,并在一定程度上安装在触动开关22之内。印刷电路板26用于控制所述装置的电子功能,如下文中所述。弹簧34使所述触动开关22偏置。一对金属触点29从印刷电路板26向下延伸。在激活前,它们是彼此分开的。
自动注射器10包括总体以标号28标明的致动组件。致动组件28包括总体以标号30标明的上构件和总体以标号32标明的下构件。
上构件30具有凹陷顶面36,所述凹陷顶面36在其中形成有多个孔口38。有四个这样的孔口38。在每一侧有一对凸耳40,每个凸耳40具有贯穿其中的通路,所述通路总体以标号42标明。
下构件32包括基部46,所述基部46具有一对向上延伸的侧壁48、50。在第一侧布置有一对支腿52,所述的一对支腿52彼此稍稍分开,并在其上端具有突舌54。类似地,在另一侧具有支腿56,每个支腿56在其上形成有突舌58。一对压缩弹簧44在下构件32和上构件30之间围绕支腿52、56延伸。在上缘上布置有凹槽31。
在上构件30和下构件32之间布置有可移动柱塞杆60,所述可移动柱塞杆60在其上具有菱形突出部62。突出部62配装在凹槽31中。
针座64具有植入注射针66,所述注射针66带有第一刺尖68和第二刺尖70。药筒74包含药剂78。药筒74在其本体内具有柱塞76,并具有可刺穿顶部80。
自动注射器10具有内壳84。内壳84具有圆筒状基部86,在其上具有突出部88。在突出部88上方布置有圆形止挡凸缘90。内壳84的上部包括凹槽92,从而把内壳84分为腿状结构。在内壳84的上部布置有突舌94,所述突舌94用于与上构件30的顶面36接合,从而把内壳84保持在位。
自动注射器10在其近端18具有触动开关98。触动开关98具有底壁100,在所述底壁100中形成有孔口102,以允许植入注射针68从其中向外伸出。触动开关98还具有前壁104和后壁106。突舌108从该处向上延伸。还布置有倒U形件110,所述倒U形件110用于与内壳84的突出部88接合,从而把两个构件互连起来。外壳114具有凸缘116和螺旋弹簧112,所述螺旋弹簧112在外壳114的上方在触动开关98和针座64之间延伸。
盖子126在触动开关98周围延伸。当需要使用自动注射器10时,可以移除盖子126。
在操作时,为了开始激活,需要按压自动注射器10,使得触动开关98抵靠身体表面的注射部位。按压触动开关98会导致致动组件28向上移动。这会使致动组件28就位,在该位置,触动开关22会起到激活所述装置的作用。此位置在图4和图5中示出。患者按压触动开关22,然后触动开关22会分别释放支腿52和56上的突舌54和58。这允许弹簧44抵着柱塞76驱动柱塞杆60。这会导致第一刺尖68从外壳向外伸出,同时会导致第二刺尖刺穿药筒74的可刺穿顶部80。然后,药剂会被注射到患者体内。
随后,在注射完成后,弹簧112会使针座64和药瓶向上运动,从而把注射针储存在自动注射器之内。
Claims (13)
1.一种自动注射器(10),包括:
外壳(12、14),具有近端(18)和远端(16);
内壳(84),在所述内壳(84)中具有药筒(74),所述药筒(74)包含药剂,并且所述药筒(74)的一端被可刺穿件(80)密封;
针座(64),所述针座(64)具有第一和第二刺尖(68、70),所述第一和第二刺尖流体相通;
致动组件(28),所述致动组件(28)能够移动至激活位置,在该激活位置,所述第一刺尖(68)在所述近端(18)从所述外壳(12、14)向外伸出,并且所述第二刺尖(70)刺穿所述可刺穿件(80);
位于所述远端(16)的第一触动开关(22),位于所述近端(18)的第二触动开关(98),所述第一触动开关(22)与所述致动组件(28)分开,从而按压所述第一触动开关(22)不会激活所述致动组件(28),所述第二触动开关(98)在被激活时使所述致动组件(28)移动,然后允许所述第一触动开关(22)激活所述致动组件(28)。
2.如权利要求1所述的自动注射器,其中,所述第二触动开关(98)由用户朝弹性表面按压所述自动注射器来激活。
3.如权利要求1所述的自动注射器,还包括用于所述近端的盖子(126)。
4.如权利要求3所述的自动注射器,还包括在所述远端处安装在所述外壳(12、14)中的印刷电路板(26)和电池(24)。
5.如权利要求4所述的自动注射器,其中,所述致动组件(28)包括上构件(30)和下构件(32),所述下构件(32)具有向上延伸的元件(52、54),所述向上延伸的元件(52、54)与所述上构件(30)锁定,压缩弹簧(44)在所述下构件(32)和所述上构件(30)之间延伸,所述第一触动开关(22)在操作时可从所述上构件(30)解锁所述向上延伸的元件(52、54)。
6.如权利要求5所述的自动注射器,其中,所述药筒具有护帽(80),所述护帽为所述可刺穿件,并且所述药筒具有布置在所述药筒中的柱塞(76),所述致动组件(28)包括柱塞杆(60),所述柱塞杆(60)与所述柱塞(76)接合,从而使所述第一刺尖(68)从所述外壳向外伸出,并且所述第二刺尖(70)刺穿所述药筒的所述护帽(80)。
7.如权利要求5所述的自动注射器,包括在所述下构件(32)和所述上构件(30)之间延伸的一对压缩弹簧(44)。
8.如权利要求7所述的自动注射器,其中,所述致动组件包括第一和第二向上延伸的元件(52、54),所述向上延伸的元件之中的每一个与所述上构件(30)锁定。
9.如权利要求8所述的自动注射器,其中,所述弹簧(44)各自围绕相应的向上延伸的元件(52、54)延伸。
10.如权利要求6所述的自动注射器,还包括用于使所述第一触动开关(22)偏置的弹簧(34)。
11.如权利要求6所述的自动注射器,还包括弹簧(112),所述弹簧(112)在其部署后使所述针座(64)偏置到缩回位置。
12.如权利要求2所述的自动注射器,还包括用于检测自动注射器的激活的检测装置(29)。
13.如权利要求12所述的自动注射器,其中,所述检测装置包括第一和第二触点(29),所述触点被保持为分开的关系,在所述致动组件激活后,所述触点彼此接触。
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CA2,833,685 | 2013-11-18 | ||
CA2833685A CA2833685A1 (en) | 2013-11-18 | 2013-11-18 | Auto-injector |
PCT/CA2014/000837 WO2015070340A1 (en) | 2013-11-18 | 2014-11-17 | Auto-injector |
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CN105828855A CN105828855A (zh) | 2016-08-03 |
CN105828855B true CN105828855B (zh) | 2019-10-25 |
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EP (1) | EP3071257B1 (zh) |
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WO2016154427A2 (en) | 2015-03-24 | 2016-09-29 | Kaleo, Inc. | Devices and methods for delivering a lyophilized medicament |
EP3341055B1 (en) * | 2015-08-26 | 2020-04-15 | SHL Medical AG | Medicament delivery device and assembly of electronic device and the medicament delivery device |
SG10201509159TA (en) * | 2015-11-05 | 2017-06-29 | Arrow-Med Design Pte Ltd | Injection device |
CA2940544A1 (en) * | 2016-08-29 | 2018-02-28 | Duoject Medical Systems Inc. | Auto-injector |
WO2018080959A1 (en) * | 2016-10-31 | 2018-05-03 | Summit Street Medical LLC | Wearable drug delivery device |
US11890456B2 (en) | 2016-11-16 | 2024-02-06 | DJ Medical, LLC | Self-administered injection device and method |
AU2017376239B2 (en) * | 2016-12-14 | 2023-07-06 | Medimmune, Llc | Embedded multiple-part sensor within a plunger rod to capture and transmit injection information |
WO2018119218A1 (en) | 2016-12-23 | 2018-06-28 | Kaleo, Inc. | Medicament delivery device and methods for delivering drugs to infants and children |
WO2019092469A1 (en) * | 2017-11-09 | 2019-05-16 | Unitract Syringe Pty Ltd | Handheld drug delivery device |
WO2019160933A1 (en) * | 2018-02-16 | 2019-08-22 | Summit Street Medical LLC | Wearable drug delivery device |
WO2019219564A1 (en) | 2018-05-15 | 2019-11-21 | Sanofi | Drive unit for a liquid handling device and liquid handling device |
EP4090399A4 (en) | 2020-01-13 | 2024-02-14 | DJ Medical, LLC | INJECTION DEVICE, SYSTEM AND METHOD OF USE |
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- 2014-11-17 US US14/392,399 patent/US10398838B2/en active Active
- 2014-11-17 BR BR112016011147A patent/BR112016011147A2/pt not_active Application Discontinuation
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NZ720182A (en) | 2020-01-31 |
EP3071257B1 (en) | 2019-11-06 |
CA2833685A1 (en) | 2015-05-18 |
CA2929883A1 (en) | 2015-05-21 |
CA2929883C (en) | 2020-07-07 |
CN105828855A (zh) | 2016-08-03 |
JP2016537114A (ja) | 2016-12-01 |
US20160287788A1 (en) | 2016-10-06 |
US10398838B2 (en) | 2019-09-03 |
EP3071257A1 (en) | 2016-09-28 |
BR112016011147A2 (pt) | 2017-09-26 |
AU2014351032A1 (en) | 2016-06-02 |
WO2015070340A1 (en) | 2015-05-21 |
AU2014351032B2 (en) | 2019-08-29 |
ES2757575T3 (es) | 2020-04-29 |
EP3071257A4 (en) | 2017-08-09 |
JP6529970B2 (ja) | 2019-06-12 |
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