CN102470227B - 吸入器 - Google Patents

吸入器 Download PDF

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CN102470227B
CN102470227B CN201080034592.9A CN201080034592A CN102470227B CN 102470227 B CN102470227 B CN 102470227B CN 201080034592 A CN201080034592 A CN 201080034592A CN 102470227 B CN102470227 B CN 102470227B
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inhaler
housing
flexible partition
blade
barrier film
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CN102470227A (zh
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亚历克斯·赫恩
I·麦克德门特
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Kind Consumer Ltd
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48Fluid transfer means, e.g. pumps
    • A24F40/485Valves; Apertures
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/20Devices without heating means
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/60Constructional details
    • 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
    • A61M15/00Inhalators
    • A61M15/0091Inhalators mechanically breath-triggered
    • 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
    • A61M15/00Inhalators
    • A61M15/0091Inhalators mechanically breath-triggered
    • A61M15/0093Inhalators mechanically breath-triggered without arming or cocking, e.g. acting directly on the delivery valve
    • 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
    • A61M15/00Inhalators
    • A61M15/06Inhaling appliances shaped like cigars, cigarettes or pipes
    • 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • A61M16/202Controlled valves electrically actuated
    • A61M16/203Proportional
    • A61M16/205Proportional used for exhalation control
    • 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
    • A61M16/00Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20Valves specially adapted to medical respiratory devices
    • A61M16/201Controlled valves
    • A61M16/207Membrane valves with pneumatic amplification stage, i.e. having master and slave membranes
    • 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/82Internal energy supply devices
    • A61M2205/8218Gas operated
    • A61M2205/8225Gas operated using incorporated gas cartridges for the driving gas

Abstract

一种吸入器,该吸入器包括可吸入组合物的储存器(5)。壳体(1)容纳所述储存器并且具有出口端和相对端。用于使所述组合物流动的组合物流路(13)从所述储存器沿着该流路延伸,并且从位于所述壳体的所述出口端(11)的组合物出口离开。位于所述壳体内的柔性隔膜(16)限定从空气入口(25)至位于所述壳体的所述出口端的空气出口(9)的空气流路,所述隔膜经过所述空气流入口朝向所述相对端延伸,从而使位于所述隔膜的一侧的所述空气流路与所述壳体的位于该隔膜的相反侧的其余部分分离。阀元件(15)能够随所述隔膜(16)一起移动。

Description

吸入器
本发明涉及一种吸入器。 
本发明已被特别地设计为用于具有大体上的香烟状主体的模拟香烟装置。然而,本发明涉及对于这样的装置的出口阀的改进,该装置在吸入器领域内具有更广泛的应用,例如,用于口服给药的医疗吸入器,诸如哮喘吸入器。 
在香烟替代品的领域中,已具有许多提议来制造模拟香烟。这种装置具有超出诸如贴片和口香糖之类的传统的尼古丁替代疗法的许多优点,因为这种装置再现了对于吸烟者的心理重要的吸烟的物理动作,并且还能够输送作为剂量的尼古丁,所述尼古丁更加接近地复制顽固吸烟者期望的香烟的药物动力学效果。因此,吸烟者能够获得从香烟熟知的“剂量(hit)”,而不是必须处理从贴片或口香糖的缓慢释放,该缓慢释放不产生这样的剂量,该剂量导致不可预知的剂量给药以及差的渴求评分和戒烟率。 
模拟香烟具有可吸入组合物的储存器和出口阀,所述出口阀例如能够通过推动按钮或者咬在香烟一端上而被触发。然而,用于打开阀的优选机构是提供呼吸致动阀,因为该呼吸致动阀确保香烟将仅在使用者以常规香烟的方式在装置上吮吸时才分配。 
US 4,393,884公开了一种这样的装置,该装置具有大的弹性“舌”,其中流路穿过该弹性舌。该舌被偏压至第一位置,在该第一位置,该舌不与香烟的出口对准,并且该舌能够被吸入第二位置,在该第二位置,该舌与香烟的出口对准以提供从储存器到出口的流路。这样的装置在第一位置难以密封。还将需要相当大的力以便克服止动弹簧的作用将舌吸到打开位置,并且舌的相对大的质量意味着其难以返回到关闭位置,从而意味着在吸力被去除之后分配将继续。 
US6,889,687公开了一种具有呼吸致动阀的模拟香烟的另一实施例。其公开了大量示例。其中一个示例具有一对磁体,其中一个磁体由柔性膜保持,在向装置施加吸力时,该柔性膜允许磁体被分开移动。这打开了来自储存器的流路。然而,该机构相当复杂,并且具有很可能妨碍来自储存器的组合物的输送的曲折流路。第二示例是弹簧偏压的柱塞,该柱塞被轴向移动以打开中心杆中的通路。这种轴向可移动柱塞在实践中是不合需要的,因为已发现克服弹簧偏压力所需要的吸力水平太高以致不能在实 践中使用。而且,处于打开位置的流路位于杆外,进入柱塞然后回到杆中,使得该路径再次略微曲折。第三示例依赖于磁性界面,其中,磁性界面上的力由绕装置的轴线旋转的叶片系统克服,由此沿凸轮面移动以将电磁阀元件拉离其阀座。再者,这遭受复杂、缺乏控制和曲折流路的问题。 
US5,027,808公开了一种吸入器,在该吸入器中,烟嘴上的吸力拉紧柔性隔膜上,使得所述隔膜朝向烟嘴被吸进吸入器中。这进而使释放弹簧加载机构的连杆机构移动,所述弹簧提供推靠罐的力以分配所述材料。所述连杆机构给分配机构带来相当大的复杂性和体积。分配器不提供可变控制,因为其能开或关并且其需要通过使用者推动按钮而重设。 
WO2009/001082是申请人自己早前的申请,其公开了两个不同的呼吸致动装置。这两个呼吸致动装置中的第一个装置具有一对叶片系统,该对叶片系统能绕与装置的主轴线垂直的轴线旋转,以使孔与来自储存器的出口孔对准,从而能够进行分配。这两个呼吸致动装置中的第二个装置具有一对铰接片,该对铰接片克服复位弹簧的作用而被向下吸,以便打开流路。尽管该申请因其提供了简单的机构和轴向流路而解决了一些问题,但因抽吸以触发装置所需要的力相当大,结果使用者在系统上能施加较小的控制来释放根据吸入口的大小而可变的剂量。 
本发明旨在提供一种用于吸入器,并且具体地是用于模拟香烟装置的改进的呼吸致动阀。 
根据本发明,提供了一种吸入器,该吸入器包括: 
用于可吸入组合物的储存器; 
壳体,该壳体容纳所述储存器并且具有出口端和相对端; 
组合物流路,该流路用于使所述组合物从所述储存器沿该流路流动,并且从位于所述壳体的所述出口端的组合物出口流出; 
柔性隔膜,该柔性隔膜位于所述壳体内,以限定从空气入口至位于所述壳体的所述出口端的空气出口的空气流路,所述隔膜经过所述空气流入口朝向所述相对端延伸,从而使位于所述隔膜的一侧的所述空气流路与所述壳体的位于该隔膜的相反侧的其余部分分离; 
阀元件,该阀元件能够随所述隔膜一起移动,并且借助偏压力被偏压到关闭所述组合物流路的位置; 
其中,所述出口端上的吸力降低空气流路中的压力,由此克服所述偏压力而升起所述阀元件,以打开所述组合物流路;并且 
所述偏压力被设置成一旦所述吸力中断就关闭所述组合物流路。 
延伸超过所述空气流入口并且限定空气流路的隔膜(其在负压下移动)的使用提供了可靠的、简单的以及灵敏的阀机构。 
此外,测试已显示,该布置能够被构造成需要比现有技术设计更小的力来由使用者操作,以赋予使用者对整个装置的更大的控制度以及更快的响应,由此提供与传统香烟更类似的体验。 
优选地,所述组合物流路是无弯曲的基本笔直路径。这提供了向所述组合物出口的更有效的组合物传送。 
为了最有效地操作,所述柔性隔膜应该在邻近于所述空气入口的区域中尤其具有柔性并且沿其长度的其余部分更具有刚性。这可通过使所述柔性隔膜在所述空气入口的区域中更薄并且在其长度上的其余部分更厚来简单地实现。其可以横跨其整个宽度上较厚,或者可以模制有纵向延伸肋。然而,优选地,沿所述隔膜的长度提供一些附加的增强。该附加的增强可采取内部加强肋的形式,但是优选地是沿着所述柔性隔膜的大部分长度延伸的叶片。 
所述阀元件可以与所述叶片分离,但是方便地与所述叶片是一体的,并且能够共模制以确保简单的组件。 
所述叶片在两端处可以是自由的,从而其从一个位置向另一个位置简单地平移。然而,优选地,所述叶片在远离所述空气入口的一端被枢转安装,从而其在打开位置和关闭位置之间移动。这允许所述叶片施加绕枢轴的最大的切向力,这影响其转矩并且因此提高对使用者呼吸的响应性。 
所述装置的灵敏性很大程度上由暴露于所述空气流路的隔膜(如果存在叶片则包括所述叶片)的表面积决定。因此所述隔膜优选地延伸所述吸入器的总长的至少四分之一并且优选地至少三分之一。 
所述可动阀元件可以以任何方式构造,其中,当该阀借助所述隔膜移动时该阀能够选择性地打开和关闭所述组合物流路。该阀可以是磁性的或者电磁装置,或者可简单地具有与所述组合物流路选择性地对准的通孔。然而,优选地,所述组合物流路的至少一部分是可变形管,该可变形管被所述阀元件选择性地挤压和释放。 
尽管单个隔膜和相关联的阀元件是优选的,但本发明还可以被执行为具有一对相对的隔膜和阀元件,当在所述出口端处施加吸力时,所述一对相对的隔膜和阀元件相互移离,以便打开所述组合物通路。 
优选地,所述柔性隔膜被构造成使得所需要的致动力在2N至20N之间,更优选地从2N至10N之间,并且最优选地基本上为5N。 
在平面中暴露于所述空气流路的所述柔性隔膜(包括由所述叶片覆盖的任何部分,但不包括被夹紧到周围壳体的任何部分)的总面积在100mm2至500mm2之间,更优选地为150mm2至250mm2之间,并且最优选地基本上为200mm2。该面积有效地是减小的压力作用在所述隔膜(包括所述叶片(如果存在))上的面积。提供相当大的面积降低了打开所述阀所需的吸力。 
优选地,所述叶片的高度为5mm至10mm,最优选地为8mm,并且长度为10mm至40mm,最优选地为25mm。 
在其最窄点处,所述隔膜的厚度优选地可以小于1mm,更优选地在0.1mm至0.4mm之间,并且最优选地为0.1mm。所述隔膜的相对刚性和挠性也需要被校准,以便使该装置的压降和阻力与吸烟相等。优选地,所述材料的邵氏硬度A额定值为20A至80A,最优选地为30A至40A。 
所述吸入器可以是用于任何可吸入药物组合物的给药吸入器。然而,所述吸入器优选地是具有大体上香烟状主体的模拟香烟装置。在该情况下,所述可吸入组合物优选地包括尼古丁或尼古丁衍生物或尼古丁盐。另一方面,所述吸入器可以是这样的模拟香烟,该模拟香烟复制吸烟的物理动作,而无需在所述组合物中具有尼古丁。另选地,所述组合物可包括患者控制镇痛药、消炎药、支气管扩张药、防痉挛剂、抗病毒剂或者鸦片剂。 
现在将参照附图描述根据本发明的吸入器的实施例,附图中: 
图1是处于关闭位置的第一吸入器的立体图的剖面; 
图2是处于打开位置的类似视图;以及 
图3是图1和图2的吸入器的分解立体图。 
本发明涉及用于呼吸致动香烟的出口阀的改进,并且仅本发明的该方面将在这里被具体地描述。对于香烟装置的其余部分的构造和其再填充机构的细节,参照WO2009/001078。 
在图1至图3中示出了根据本发明的吸入器的第一实施例。 
如图1所示,该装置具有由主底盘2和封闭元件3组成的壳体1。该壳体通过标签4保持就位。在壳体内,存在容纳可吸入组合物的储存器5。该储存器优选地被加压,但还可以在非加压储存器的情况下工作,该非加压储存器与文丘里喷嘴结合以在储存器上产生增强的吸力,或者还可以在容纳易于在室温下蒸发的物质的非加压储存器的情况下工作。如在WO 2009/001082中描述的那样,该储存器可以通过填充阀6而可再填充,或者该装置可以是一次性装置,或者可以被布置成使储存器5是可替换部件。 
呼吸致动阀7定位于出口端8和储存器5之间。该呼吸致动阀布置成使得当使用者在出口端8上吮吸时,呼吸致动阀7打开以允许吸入来自储存器5的可吸入组合物。 
壳体在出口端处具有两个孔。这两个孔中的第一个孔是吸入孔9,如以下将更详细地描述的,该吸入孔9与室10连通,并且第二个孔是出口孔,如以下也将更详细地描述的,可吸入组合物从该出口孔分配。如从图3清楚的,出口孔11设置在单独部件12上。 
在储存器5和出口孔11之间限定出口路径13。 
出口路径13的一部分由可变形管状元件14提供。该管状元件通过现在将描述的机构在图1所示的关闭位置和图2所示的打开位置之间移动。 
该机构包括枢转安装的叶片15和膜16。膜优选地例如由TPU(热塑性聚氨酯弹性体)或TPE(热塑性弹性体)材料注射成型,所述TPU或TPE例如是Kraiburg的药品级TPE,或者Mediprene、Santoprene或者氯丁二烯橡胶。枢转安装的叶片具有位于最靠近出口端8的端部的枢轴17以及沿该叶片的长度延伸并远离出口端逐渐变细的中央加强肋18。另选地,可具有两个或更多个隔开的肋。在中点附近,叶片15设置有用于接收弹簧20的凹部19,该弹簧20将叶片15偏压至图1所示的关闭位置。在凹部19下方的是具有三角形截面的爪21,该爪21构造成在窄的区域上将从叶片15提供的力施加到可变形管14。借助通过隔膜16中的孔装配爪21并借助于隔膜上的装配在叶片15上的孔中的凸起部16A,使叶片15由隔膜16支撑。该隔膜16在其端部22、23处被密封到壳体。这密封了除吸入孔9之外的室10。在端部23处,该隔膜16起皱以适应该端部在打开位置和关闭位置之间的运动。 
膜16的下侧24对大气压力开放,这是因为通过壳体1存在图中未示出的泄漏路 径,因为该泄漏路径绕出口路径13延伸,因此未在图1和图2的平面中示出。 
当使用者利用图1所示的构造中的装置在出口端8上吮吸时,空气经由入口孔25被吸入室10中并且被吸出吸入孔9,由此相对于隔膜16下方的压力降低该室中的压力。在隔膜16上产生的压差足以关闭流路。例如,该压差能克服弹簧20的作用将叶片15升起到图2所示的位置。这使隔膜变形为图2所示的构造,并且将爪21升起以允许可变形的管打开,由此允许来自储存器5的可吸入组合物沿出口路径13通过可变形的管14并且通过出口孔11离开。由使用者施加的吸力程度将决定叶片15移动的程度并且因此决定使用者接收的组合物的量。使用者一停止吮吸,大气压力就将经由吸入孔9返回至室10,并且弹簧20将使叶片返回到图1的位置,由此挤压管14关闭。 

Claims (17)

1.一种吸入器,该吸入器包括:
用于可吸入组合物的储存器;
壳体,该壳体容纳所述储存器并且具有出口端和相对端;
组合物流路,该流路用于使所述组合物从所述储存器沿该流路流动,并且从位于所述壳体的所述出口端的组合物出口流出;
柔性隔膜,该柔性隔膜位于所述壳体内,以限定从空气入口至位于所述壳体的所述出口端的空气出口的空气流路,所述隔膜经过所述空气入口朝向所述相对端延伸,从而使位于所述隔膜的一侧的所述空气流路与所述壳体的位于该隔膜的相反侧的其余部分分离;
阀元件,该阀元件能够随所述隔膜一起移动,并且借助偏压力被偏压到关闭所述组合物流路的位置;
其中,所述出口端上的吸力降低所述空气流路中的压力,由此克服所述偏压力而升起所述阀元件,以打开所述组合物流路;并且
其中所述偏压力被设置成一旦所述吸力中断则关闭所述组合物流路。
2.根据权利要求1所述的吸入器,其中,所述组合物流路是无弯曲的基本笔直路径。
3.根据权利要求1或2所述的吸入器,该吸入器还包括叶片,该叶片沿着所述柔性隔膜的大部分长度延伸。
4.根据权利要求3所述的吸入器,其中,所述叶片在远离所述空气入口的一端被枢转安装。
5.根据权利要求3所述的吸入器,其中,所述阀元件和所述叶片是一体的。
6.根据权利要求1或2所述的吸入器,其中,所述隔膜延伸过所述吸入器的总长的至少四分之一。
7.根据权利要求1或2所述的吸入器,其中,所述隔膜延伸过所述吸入器的总长的至少三分之一。
8.根据权利要求1或2所述的吸入器,其中,所述组合物流路的至少一部分是可变形管,该可变形管被所述阀元件选择性地挤压和释放。
9.根据权利要求1或2所述的吸入器,其中,所述柔性隔膜被构造成使得所需要的致动力在2N至20N之间。
10.根据权利要求1或2所述的吸入器,其中,所述柔性隔膜被构造成使得所需要的致动力在7N至10N之间。
11.根据权利要求1或2所述的吸入器,其中,所述柔性隔膜被构造成使得所需要的致动力基本上为5N。
12.根据权利要求1或2所述的吸入器,其中,所述柔性隔膜的邵氏硬度A为20A至80A。
13.根据权利要求1或2所述的吸入器,其中,所述柔性隔膜的邵氏硬度A为30A至40A。
14.根据权利要求3所述的吸入器,其中,在平面中所述柔性隔膜暴露于所述空气流路的总面积在100mm2至150mm2之间,这包括由所述叶片覆盖的任何部分但不包括被夹紧到周围壳体的任何部分。
15.根据权利要求3所述的吸入器,其中,在平面中所述柔性隔膜暴露于所述空气流路的总面积在150mm2至250mm2之间,这包括由所述叶片覆盖的任何部分但不包括被夹紧到周围壳体的任何部分。
16.根据权利要求3所述的吸入器,其中,在平面中所述柔性隔膜暴露于所述空气流路的总面积基本上为200mm2,这包括由所述叶片覆盖的任何部分但不包括被夹紧到周围壳体的任何部分。
17.根据权利要求1或2所述的吸入器,其中,所述吸入器是模拟香烟。
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