CN101970129A - 计量装置 - Google Patents
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Abstract
本发明涉及一种计量装置(1),用于按计量分配液体制剂,特别是用于计量医学、药学以及化妆品液体制剂,其中,能够舍弃使用防腐剂。
Description
技术领域
本发明一般涉及计量装置,用于液体制剂的按计量分配,特别是用于计量医学的、药学的和化妆用的液体制剂,其中能够舍弃使用防腐剂。该计量装置还可用于食品领域内,例如关于食品添加剂、调味剂等。
背景技术
例如在EP 0 473 892 A2中已知用于分配无菌流体的计量装置。然而,在此描述的计量装置由非常多的单个部分构成,既使得制造变得无谓地复杂和昂贵,又使得所述计量装置易出错和易受干扰。
此外,对于该已知的计量装置,不是在所有情况下都能足够精确地计量待计量的制剂。
发明内容
因此,本发明的目的在于提供一种用于按计量分配液体制剂的计量装置,该计量装置具有尽可能简单的结构,并因此避免现有技术中的缺点。
该目的通过权利要求1所述的特征实现。此外,从属权利要求描述有利的改进方案。
因此,根据本发明,提出将现有技术中的计量装置改进成使得在排出通道的端部区域内布置由弹簧驱动的排出阀,其弹簧在与排出通道连接的单独凹槽中被进行引导。
通过在排出通道的端部区域中布置排出阀,能够在所有工作条件下实现对待计量制剂的最佳计量。特别地,该解决方案有利的是,在计量装置长时间保持站立时,位于通往喷嘴的排出通道中的液体制剂不会干燥,同样地,可有效防止对位于排出通道内的液体的污染,例如由细菌造成的污染。此外,根据本发明的排出阀被构建成使得:弹簧(也就是阀弹簧)在凹槽中被进行引导(有利的是,该凹槽为与排出通道连接的沟槽)并用于驱动排出阀(也就是阀活塞)。
现在,当操作本发明的计量装置时,从计量装置的内部输送出的液体对阀弹簧和阀活塞施加压力,使得活塞在弹簧的方向上运动并且开启出口,由此,液体能够出来。由于现在阀弹簧在单独凹槽中被进行引导,所以还确保要被计量的液体制剂不与弹簧接触。
对于根据本发明的计量装置,喷嘴和排出通道从空心体(其优选被构建成空心圆柱体)被侧向引向外部,或者喷嘴经由盖被引到外面。
本发明的另一有利实施形式提出:排出通道和/或阀体具有用作杀菌剂的制剂。这可通过下述方式实现:有关部分直接由用作杀菌剂的介质(例如银)制成,或者相应的区域具有用作杀菌剂的涂层。同样地,可具有用作杀菌剂的嵌件,这能够例如以弹簧或螺旋线的形式在喷嘴开口的区域中实现,该喷嘴开口具有杀菌作用。
特别是银或者银盐(例如氯化银)可作为用作杀菌剂的介质。
根据本发明的计量装置具有的进一步区别优选在于:该计量装置具有明显简化的结构。由于盖与优选为圆柱形的空心体能够以单件形式构建,因此能够以数量明显减少的各部分制造致动体,并且因此能够降低生产成本。特别地,因此优选的是不仅所述具有空心圆柱体的盖而且泵活塞也以单件形式(也就是一体式)构建。例如,能够以注模工艺由大体上任何的塑料材料经济地制造上述各部分。另一优点在于,对于同样的容量和同样的功能,包装显著变小,这在经济以及生态方面同样是有利的。
具有喷嘴的排出通道也能够被构建成所述盖的一体的组成部分,其中在这种情况下,与泵室的连接优选通过在泵活塞中延伸的通道构建。可替选地,也能够是一种其中具有喷嘴的排出通道作为单独部件存在的结构。
在一有利实施形式中,泵室经由入口与储存容器连接。为了确保待计量的液体能有效地连续流动以及防止在计量过程中位于泵室中的液体的回流,该入口具有吸入阀。该吸入阀例如能够被构建成球形阀,并且特别地,该吸入阀可由用作杀菌剂的物质或材料制成,以及涂有用作杀菌剂的材料,该材料例如为银或者氯化银。在此,涂有银的不锈钢球特别优选作为吸入阀。
为了确保在计量过程以及将储存容器中的液体注入泵室之后恢复致动体,优选在泵室与盖之间布置机械复位装置。特别地,这可以是复位弹簧和/或伸缩管,例如设有伸缩管的复位弹簧。
此外,对于根据本发明的计量装置而言,当储存容器在其内侧上具有降低摩擦的涂覆层时是有利的。优选地,该内侧配备有聚乙烯层。对于这种情况,能够以两部件的注模工艺制造储存容器。除储存容器的内侧外,活塞也能够同时和/或与此无关地具有滑动层。在该段中描述的聚乙烯涂层不仅降低摩擦,而且也具有使得可允许用于医学目的用途的优点。
此外,优选的是计量装置在无空气平衡的情况下工作,也就是说,在计量装置致动期间不通过流入空气在储存容器内实现平衡压力。
储存容器也可具有活塞,例如拖拉活塞。储存容器的底部能够配备过滤基质,例如活性炭过滤器或者尼龙或者聚偏氟乙烯膜(PVDF),过滤基质确保例如细菌和霉菌不能借助于流入的空气而通过。
附图说明
借助于附图进一步描述本发明,但本发明并不限制于在附图中示出的具体实施例,附图中:
图1以放大视图的形式示出具有第一实施形式的排出阀的根据本发明的计量装置的致动体;
图2再次同样以放大视图的形式示出具有向外倾斜朝向的排出通道的根据本发明的计量装置的致动体;
图3再次同样以放大视图的形式示出根据本发明的计量装置的致动体,其中,排出喷嘴经由盖被引向外部;
图4在4a)中以全景方式示出包括致动体和拖拉活塞瓶(Schleppkolbenflasche)的计量装置,其中,4a)示出空置状态而4b)示出拖拉活塞瓶的装满状态;
图5在5a)和5b)中以4a)和4b)的变型形式示出具有拖拉活塞瓶的计量装置,在拖拉活塞下面为附加的压力弹簧,其中,5a)示出装满状态而5b)示出空置状态;
图6示出根据本发明的计量装置的另一实施形式,其中,储存容器配备有伸缩管;此外,6a)示出计量装置的装满状态而6b)示出清空的变型;
图7示出另一实施形式,相对于图6进行了变化,这里,在拖拉活塞下面设有附加的压力弹簧;7a)示出储存容器的装满状态而7b)示出在清空状态下的同一计量装置;
图8以局部放大视图的形式示出经涂覆的拖拉活塞的构造。
具体实施方式
现在,图1以放大视图的形式示出根据本发明的计量装置1的致动体3。在图1中,仅在图中略示储存容器2。关于储存容器的构造参考图4至图7。
在此,根据图1所示的实施形式的致动体3包括盖4和圆柱形式的空心体30以及作为单件与盖4和圆柱形空心体30连接的泵活塞5,该泵活塞5可以以形状配合的方式引入到泵室6中。现在重要的是,在排出通道8的端部区域内布置有排出阀36,该排出阀36包括压力弹簧33和阀活塞35。从而压力弹簧33被在凹槽34中引导,该凹槽34与排出通道8连接。通过用户挤压盖4而致动该盖4,现在泵活塞5运动进入泵室6,结果将位于泵室6中的液体通过排出通道8排向喷嘴7。通过由此产生的超压,克服弹簧33的、将排出阀36保持在封闭位置上的弹力而打开排出阀36,使得能够排出液体。由此,活塞5的行程容积确定排出的计量量。在计量过程结束之后,通过被置入伸缩管12中的复位弹簧11将具有所连接的活塞5的盖4自动引回到起始位置,其中,在泵室6中出现低压,使得液体通过之前被阀9封闭的开口10从储存容器2流入泵室6。阀36能够由起杀菌作用的材料制成或者由涂有起杀菌作用的物质(例如银或银盐)的材料制成,吸入阀9也是如此,使得确保有效地保持所容纳的液体制剂的无菌情形。对于上述实施形式应特别指出,因为排出阀36被构建成使得弹簧33在凹槽34中被引导,所以由于液体不与弹簧33接触,能够安全并且无菌地致动排出阀。
图2示出致动体3的另一优化实施形式,再次以放大视图的形式示出该致动体。与图1所示的实施形式相比,在根据图2所示的实施形式中,排出通道8被沿直线向外引导通过圆柱形空心体30,这在制造方面得到了简化。通过该实施形式同样确保能够降低被构建作为致动按钮的盖4的高度,使得致动体3以及整个计量装置1更加紧凑。图2所示的致动体的另一特征在于,同样也包括阀弹簧33和阀体35的排出阀36以及排出喷嘴7被安置在壳体中,该壳体被扣接在排出通道8上。由于这样的机械连接容易拆卸,所以例如在阀阻塞的情况下能够容易地实现疏通,使得能够不很复杂地清洁排出阀36。在这方面还应注意,根据本发明的计量装置的致动体3如同图1所示的实施形式一样也具有额外的密封部件39,该密封部件用于相对于储存容器2密封致动体3。
图3再次以放大视图的形式示出根据本发明的计量装置的致动体3的另一实施形式。该实施形式的致动体3也由与圆柱形空心体3一体连接的盖4构成。不同于图1和图2所示的实施形式,在这里,喷嘴7被经由盖4向外引导。从而,为了制造仅需要将升液管40与盖4集成,其中,该升液管40使两个部分排出通道8’和8”被连接成经由阀36连通。对于该实施形式,阀36也被构建成为包括弹簧33和阀活塞35。当然,本发明也包括仅设置一个排出通道8’或者设置多于两个排出通道的实施形式。其他参考标号相应于针对图1和图2所述的参考标号。
现在,图4示意性地以截面形式示出根据发明的包括致动体3和储存容器2的计量装置1的结构。由此,致动体3的结构对应于在图1中详细描述的结构。在此,储存容器2被构建成使得该储存容器具有活塞15以及过滤基质16。该过滤基质16也能够通过底部螺旋连接而可触及。
致动体3与储存容器2通过插拔连接以齿合的方式连接,然而该连接也可以是任何其他类型,例如通过螺旋连接进行连接。在图4a中,储存容器2正处于清空状态,也就是说,拖拉活塞15直接位于致动体3上,然而,图4b示出在装满状态下的储存容器2,也就是说,拖拉活塞15被置于底部上。对于图4中示出拖拉活塞瓶的最简单设计的实施形式,也能够设置成储存容器2的内表面具有附加的降低摩擦的涂层。具有聚乙烯的涂层不仅降低摩擦,而且还具有允许用于医学目的用途的优点。
现在,图5示出另一对应于图4所示实施形式的实施形式,然而,在这里,在拖拉活塞15下面另外设置压力弹簧41。图5a示出装满状态下的储存容器2,而图5b示出清空状态下的储存容器2,在这里,压力弹簧41于是向上引导拖拉活塞15。
现在,图6示出另一实施形式,其中,在储存容器2中设置伸缩管17。在此,该伸缩管17具有预张力,也就是说,该伸缩管在清空状态下被折叠在一起(图6b)。此外,在图6a中示出储存容器2被装满的状态。在该情况下,伸缩管17展开。对于在图6中示出的实施形式,该实施形式与图5所示的实施形式的不同点在于,在底部上没有设置附加的过滤装置。
最后,图7示出另一对应于图6所示实施形式的实施形式,然而,在这里,在拖拉活塞15下面又另外设置压力弹簧41。因此,在该实施形式中,除伸缩管17之外布置有另外的压力弹簧41。
现在图8示出图4、图5、图6或者图7所示的储存容器的一部分,其中,另外地,拖拉活塞15在其面对容器2内壁的侧面上配备有滑动层23,例如聚乙烯涂层。此外,储存容器2的容器内侧具有额外的滑动层22。具有聚乙烯的涂层不仅降低摩擦,而且还具有允许用于医学目的用途的优点。
Claims (17)
1.一种用于按计量分配液体制剂的计量装置(1),包括用于液体制剂的储存容器(2)以及能够与该储存容器(2)连接的致动体(3),其中,该致动体(3)具有与盖(4)连接的空心体(30)、泵活塞(5)、泵室(6)以及经由排出通道(8)与所述泵室(6)连接的喷嘴(7),其特征在于,在排出通道(8)的端部区域内布置有弹簧驱动的排出阀(36),其弹簧(33)在分立的、与所述排出通道(8)连接的凹槽(34)中被引导。
2.根据权利要求1所述的计量装置,其特征在于,所述喷嘴(7)被侧向地从所述空心体(30)引出。
3.根据权利要求1所述的计量装置,其特征在于,所述喷嘴(7)经由所述盖(4)引出。
4.根据前述权利要求中任一项所述的计量装置,其特征在于,与所述排出通道(8)连接的所述喷嘴(7)被构建成分立的部件。
5.根据前述权利要求中任一项所述的计量装置,其特征在于,所述排出阀(36)直接被布置在所述排出通道(8)的端部。
6.根据权利要求1至5中任一项所述的计量装置,其特征在于,所述排出通道(8)和/或所述排出阀(36)的阀体(35)具有用作杀菌剂的介质。
7.根据权利要求6所述的计量装置,其特征在于,所述用作杀菌剂的介质选自用作杀菌剂的涂层或者用作杀菌剂的嵌件。
8.根据权利要求6或者7所述的计量装置,其特征在于,所述用作杀菌剂的介质为银或者银盐,特别是氯化银。
9.根据前述权利要求中任一项所述的计量装置,其特征在于,与所述盖(4)连接的所述空心体(30)为圆柱形。
10.根据前述权利要求中任一项所述的计量装置,其特征在于,所述盖(4)和所述空心体(30)以单件的方式构建。
11.根据权利要求10所述的计量装置,其特征在于,所述盖(4)、所述空心体(30)和所述泵活塞(5)以单件的方式构建。
12.根据前述权利要求中任一项所述的计量装置(1),其特征在于,所述泵室(6)经由设置有吸入阀(9)的入口(10)与储存容器(2)连接。
13.根据前述权利要求中任一项所述的计量装置(1),其特征在于,在所述泵室(6)与所述盖(4)之间布置有用于复位所述盖(4)的机械复位装置,所述机械复位装置优选为复位弹簧(11)和/或伸缩管(12)。
14.根据前述权利要求中任一项所述的计量装置(1),其特征在于,所述装置被构建成其操作不需要空气平衡。
15.根据前述权利要求中任一项所述的计量装置(1),其特征在于,所述储存容器(2)具有活塞(15)和过滤基质(16)。
16.根据前述权利要求中任一项所述的计量装置(1),其特征在于,所述储存容器(2)在内侧具有降低摩擦的涂覆层(22)。
17.根据权利要求11或者12所述的计量装置,其特征在于,所述活塞(15)在其面对所述储存容器(2)内侧的侧面上具有降低摩擦的涂覆层(22)。
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CA2713119C (en) | 2016-05-17 |
PL2200752T3 (pl) | 2013-03-29 |
ES2400125T3 (es) | 2013-04-05 |
CA2713119A1 (en) | 2009-09-11 |
EP2200752A1 (de) | 2010-06-30 |
WO2009109370A1 (de) | 2009-09-11 |
JP2011513053A (ja) | 2011-04-28 |
KR20110020761A (ko) | 2011-03-03 |
KR101730388B1 (ko) | 2017-04-26 |
MX2010009759A (es) | 2010-10-04 |
DK2200752T3 (da) | 2013-02-11 |
EP2200752B1 (de) | 2012-10-31 |
AU2009221462A1 (en) | 2009-09-11 |
US20110056993A1 (en) | 2011-03-10 |
HK1141481A1 (en) | 2010-11-12 |
AU2009221462B2 (en) | 2013-03-28 |
US9238085B2 (en) | 2016-01-19 |
DE102008027987A1 (de) | 2009-09-17 |
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