CN101309719A - 压力启动的近端阀 - Google Patents
压力启动的近端阀 Download PDFInfo
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Abstract
公开了一种医疗装置,其包括其中设置了至少一个狭口阀的膜片,以及构造成在所述膜片的周边部分处固定该膜片的阀壳,其中所述膜片的中央部分相对于该膜片的周边部分定位,使得作用在该膜片周边部分上的压缩力产生将所述狭口阀偏压到关闭位置的力矩。公开了与联合导管使用所述装置来调节流体进出患者的方法。
Description
背景技术
在医学中,当物体(栓子,多个栓子)从身体的一个部分迁移(通过循环)并引起身体的另一个部分中血管的阻塞时发生栓塞。血凝块形成通常的拴子材料。其它可能的栓子材料包括脂肪球(脂肪栓塞),气泡(空气栓塞),脓毒性栓子(包含脓和细菌),或者羊水。当栓子在身体中没有富余血供的所谓“末梢循环”区域中出现时,诸如脑部、心脏、和肺,它们通常具有更严重的后果。假设是正常的循环,在全身静脉中形成的血栓或者其他栓子将总是在经过心脏的右侧之后挤入肺中。这形成肺栓塞,其可以是深部静脉血栓的并发症。
栓塞可以与“血栓”对照,“血栓”是在血管中形成的凝块,而不是从其它地方带来的。血栓,或者血凝块,是止血中凝血步骤的最终产物。它通过形成血小板栓的血小板聚集、以及体液凝固系统(即凝血因子)的启动而实现。血栓在受伤的情况下是生理性的,但是在血栓症的情况下是病理性的。在大血管中的血栓会降低通过该血管的血流。在小血管中,可能会完全切断血流,导致由该血管供应的组织的死亡。如果血栓离开原位并变为自由漂浮,则它成为栓子。
形成血凝块的一些情况包括心房纤维颤动(心脏心律失常的一种形式),心脏瓣膜置换,近期心脏病发作,长时间不活动(参见深静脉血栓症)以及遗传或者与疾病相关的凝血能力的缺陷。
防止血凝块降低了中风、心脏病发作和肺栓塞的风险。通常使用肝素和华发林来抑制已有的血凝块的形成和成长,从而允许身体通过通常的方法缩小并溶解血凝块(参见抗凝血剂)。通过导管调节液体流动可以有助于使栓塞和与其相关联的健康风险最小化。
发明内容
本发明的一个方面公开了一种医疗装置,包括其中设有至少一个狭口阀的膜片以及至少一个阀控构件。这里使用的术语“膜片”可以定义为分开或者隔开的任何膜状部件。阀控构件可以构造成覆盖膜片的至少一部分,而不覆盖狭口阀的任何部分,并且可以进一步构造成控制膜片的偏移。在本发明的另一个方面,该阀控构件包括至少一个臂,所述臂从该阀控构件的外部延伸到该阀控构件的内部。在本发明的再另一个方面中,该阀控构件包括多个臂,所述臂从该阀控构件的外部延伸到该阀控构件的中央部分。此外,该医疗装置可以包括其中有膜片的阀壳,该阀壳构造成连接到伸长的管状构件,该伸长的管状构件构造得至少部分放置到患者的部位中。在本发明的另一个方面,该狭口阀的至少一部分具有非直线的取向。在本发明的另一个方面,该狭口阀还包括取向为不同方向的多个相互连接的直线狭口。
在另一个实施例中,一种用于调节液体流的医疗装置包括其中设有狭口阀的膜片,以及构造成将该膜片在膜片的周边部分处固定的阀壳。该阀壳的远端可以进一步构造成连接到诸如导管的伸长的管状部件的近端。该膜片的中央部分相对于该膜片的周边部分定位,使得作用在该膜片的周边部分上的压缩力产生将该狭口阀偏压到中性位置的力矩。在本发明的一个方面,该膜片的外部比该膜片的内部厚。或者,在本发明的另一个方面,该膜片的外部比该膜片的内部薄。在本发明的还另一个方面,该膜片可以基本圆形或者基本椭圆形。在本发明的另一个实施例中,该膜片的至少一部分近似拱顶结构的形状。在一个方面,该膜片还包括外接于该拱顶结构的凹或凸环形构件。在一个实施例中,该膜片基本垂直于通过阀壳的流动方向取向。在另一个实施例中,该膜片相对于通过阀壳的流动方向成一钝角取向。在一个方面,该膜片从该膜片的横向部分到该膜片相对横向部分变窄。在还有另一个方面,在该膜片的相对两侧上安装了至少两个狭口阀。
在另一个实施例中,该医疗装置的膜片还包括位于该膜片近端上的至少一个突出构件,构造用于帮助该狭口阀返回到偏压的中性位置。在一个方面,该膜片还包括在该膜片近端上的一对位于中央的相对的突出构件,构造用于帮助该狭口阀回到偏置的中性位置。
本发明的一个实施例计划一种医疗装置,包括其中设置了至少一个狭口阀的膜片。该膜片的近端表面和远端表面近似拱顶结构。构造该膜片使得该膜片与该狭口阀相接的近端部分薄于膜片的相邻部分。在一个方面,该膜片被阀壳在周边部分处固定,该阀壳的远端构造成连接到伸长的管状构件的近端部分。在另一个方面,该膜片的周边部分的高度大于该膜片在该膜片的拱顶结构的顶点处的拱顶结构高度。在还有另一方面,该膜片的周边部分的高度为该膜片的周边部分的宽度的大约两倍。在另一个实施例中,该膜片的该周边部分被阀壳压缩大约5-15%。在另一个实施例中,该膜片的中央部分受到来自该膜片的周边部分的压缩的力矩,从而将该狭口阀偏压到中性位置。在还有另一个实施例中,该膜片的中央部分位于该膜片的周边部分的近端。
在发明的另一个实施例中,一种医疗装置包括圆柱形构件,所述构件具有构造成被阀壳在周边部分处固定的近端,其中该周边部分具有的周长大于主圆柱形构件的周长。该医疗装置还包括至少一个狭口阀,该狭口阀位于该圆柱形构件的外壁上。该狭口阀平行于该圆柱形构件的纵轴线取向。在一个方面,该阀壳的远端构造成连接到伸长的管状构件的近端,其中该伸长的管状部件的远部分被构造用于放入患者的部位中。
在还有的实施例中,一种医疗装置包括压力启动阀,所述压力启动阀具有开放的圆柱形近端和至少部分封闭的远端。进一步构造该医疗装置,使得该远端至少包括部分平坦的表面,该部分平坦的表面其中设置了至少两个以不同方向取向的狭口。这些狭口具有至少一个公共交点并且构造成响应第一压力差在远端方向致动。进一步构造该医疗装置,使得该阀的远端部分由相交的狭口的内角限定,该阀远端的外部从该阀的远端朝着该阀的近端逐渐变细,从而在该阀远端的外部上形成沟道。在一个方面,该医疗装置还包括安装在远端上的至少一个近端致动的狭口阀。该狭口阀构造成响应第二压力差在近端方向致动。在这个方面,第二压力差高于第一压力差。在另一个方面,设置在该阀的远端中的这些狭口取向为近似十字形,从而将该阀的远端分成扇形体。在一个方面,进一步构造该阀,使得该十字形的中心与该阀的圆形近端的中心近似共线。在还有另一方面,该至少一个近端致动的狭口阀位于该沟道的底部。
在另一个实施例中,公开了一种方法,包括将导管的远端放入患者的脉管系统中的步骤,其中该导管的近端具有与其连接的医疗装置。该医疗器件包括其中设置了至少一个狭口阀的膜片,以及构造成在该膜片的周边部分处固定该膜片的阀壳。该膜片的中央部分相对于该膜片的周边部分定位,使得作用在该膜片的周边部分上的压缩力产生将该狭口阀偏压到中性位置的力矩。该方法还包括形成跨狭口阀的第一液体压力差从而将液体注入患者以及形成跨狭口阀的第二液体压力差从而从患者吸出液体的步骤。
根据本公开内容,来自任意的上述实施例的特征可以相互结合地使用。此外,通过考虑接下来的说明,附图,以及所附的权利要求,本公开内容的其他特征和优点对于本领域技术人员将变得明显。
附图说明
本发明的优点将通过参照下文的详细说明和附图将变得明显,附图中示出了本发明的各种实施例的代表(不一定按比例绘制),其中:
图1是在患者的脉管系统内放置有导管组件的患者的正视图;
图2是其中设置有狭口阀的膜片以及阀控构件的透视图;
图3是彼此邻近的图2的膜片和阀控构件的透视图;
图4是示出阀在远端方向致动的图3的膜片和阀控构件的透视图;
图5是狭口阀的一个实施例的透视图;
图6是狭口阀的一个实施例的透视图;
图7是处于远端开放位置的图6的狭口阀的透视图;
图8是阀组件的一个实施例的横截面图;
图9是狭口阀的一个实施例的横截面图;
图10是图9的狭口阀的底视图;
图11是狭口阀的一个实施例的横截面图;
图12是图11的狭口阀的底视图;
图13是狭口阀的一个实施例的横截面图;
图14是狭口阀的一个实施例的横截面图;
图15是阀组件的一个实施例的横截面图;
图16是狭口阀的一个实施例的顶视图;
图17是图16的狭口阀的横截面图;
图18是狭口阀的一个实施例的透视图;
图19是图18的狭口阀的横截面图;
图20是狭口阀的一个实施例的透视图;
图21是狭口阀的一个实施例的横截面图;
图22是狭口阀的一个实施例的横截面图;
图23是狭口阀的一个实施例的横截面图;
图24是狭口阀的一个实施例的横截面图;
图25是狭口阀的一个实施例的横截面图;以及
图26是狭口阀的一个实施例的横截面图。
具体实施方式
本公开内容的一个方面涉及用于与医疗装置一起使用的压力启动阀的装置和系统。具体的,本公开内容计划将狭口阀设置在诸如导管的医疗装置内,用于通过该导管并在患者中选择性注入和吸出流体。
参照图1,导管组件10可以是可以设置在体腔、管腔或脉管内的任何类型。这样的导管的实例包括,不是限制性地,外周插入中心静脉导管,中心静脉导管,静脉内导管,泌尿导管,以及用于换气、胸膜引流、血管成形、或者肠道喂养的导管。图1示出了经由锁骨下静脉12外周置入的导管14。然而,导管14可以设置在需要引流、注入或吸出流体、手术器械可接近等的患者的任何部位。导管14包括第一部分15,具有构造用于放置到患者25的一部分中的远端20,以及构造用于连接到阀组件35的近端30。导管组件10还包括第二部分40,具有构造用于连接到阀组件35的远端41,和构造用于连接到流体源43以及去除流体和注入流体的位置44的近端42。
在一个实施例中,可以经由连接到导管组件10的近端部分的静脉输注袋(IV bag)通过导管组件10向患者25输送流体,其中该流体是基本上由重力流到患者25的。在另一个实施例中,可以通过将导管组件10的第二部分40的近端连接到动力注入系统,经由导管组件10将流体动力注入患者25。在本发明的另一方面,可以通过将注射器连接到流体去除位置44并对导管组件10施加负压来吸出流体。
一般地,本发明的一个方面计划了位于插入患者的导管的流体通路中的压力启动阀。该阀可以由第一压力差在远端方向致动,该第一压力差例如来自诸如静脉输注袋的流体源的重力引起的压力。该阀也可以例如通过将造影剂动力注入患者在远端方向致动。该阀还可以由第二压力差在近端方向致动,例如由来自注射器的负压,从而可以从患者抽血。在一个实施例中,第一压力差低于第二压力差。然而,可以使这里公开的任何压力启动阀反向,从而改变压力差模式(例如,第一压力差高于第二压力差)。
现在参照图1到4,在一个实施例中,阀组件35可以包括其中设置了至少一个狭口阀50的膜片45以及相邻膜片45设置的阀控构件55。该狭口阀50独立地构造成响应近端压力或者远端压力,分别在近端方向和远端方向致动。阀控构件55构造成控制膜片45在近端方向的变位(deflection),从而限制狭口阀50在近端方向57的致动。结果是,当阀控构件55相邻于膜片45定位时,在远端方向致动狭口阀50的压力差低于在近端方向致动狭口阀50所需的压力差。在一个实施例中,膜片45是圆形的并且阀控构件55也对应地为圆形。然而,膜片45和阀控构件55可以是椭圆形、矩形或者任何其他适合的形状。阀控构件55可以设置在膜片45的远端上,膜片45的近端上,或者膜片45的两端上。
在本发明的一个方面,阀控构件55包括至少一个臂60,所述臂从阀控构件55的外部65延伸到阀控构件55的内部66。在本发明的这个方面,该臂可以横向延伸地跨过膜片面的一部分或者任何其他带角度的方向。在另一个实施例中,阀控构件55包括多个臂60,所述臂从阀控构件55的外部65延伸到阀控构件55的中心部分66。在一个实施例中,单个狭口阀50基本设置在膜片45的中心75内并且基本是直线的。在另一个实施例中,可以将几个狭口阀设置在膜片的中心或者周边附近。此外,狭口阀可以具有非线性取向或者可以包括在不同方向取向的多个相互连接的直线狭口。
现在参照图1、5、6和7,在一个实施例中,阀组件35可以包括压力启动阀80,所述压力启动阀80具有开放的圆形近端85和至少部分地封闭的远端90。总体参照图5,阀80的远端90包括至少一部分平坦的表面82,该表面82具有在不同方向取向的狭口阀95。狭口95具有至少一个共同交点100,并且构造成响应第一压力差(例如,低于或等于大约2psi)在远端方向致动。阀80的远端90的部分105由至少两个上述狭口95的内角110限定。阀80的远端90的外部115从阀80的远端90朝着阀80的近端85逐渐变细。逐渐变细的阀80的外部115,在相交的狭口95的内角110限定的区域中,在阀80的远端90的外部115上,形成沟道120。
如图6所示,在一个实施例中,可以在阀80的远端90上提供至少一个近端致动的狭口阀125。该近端致动的狭口阀125可以构造成响应第二压力差(例如,高于或等于大约2psi)在近端方向致动,其中第二压力差高于第一压力差。如图7所示,通过阀80的流体的输注引起远端致动阀80变位。在一个实施例中,阀80在远端方向的变位封闭了近端致动阀125。当压力梯度反向时(例如进行吸出),近端致动阀125被封闭。在另一个方面,可以将多个近端致动的狭口95设置在阀90的近端上,取向为近似十字形。因此,阀80的近端90由狭口阀分为扇形体。在本发明的一个方面,可以在阀80的每个扇形体上形成沟道120。此外,可以用阀80的沟道120设置近端致动的狭口125。在另一实施例中,构造阀80使得十字形的中心100与阀80的圆形近端85的中心近似共线。在另一实施例中,每个扇形体的弧长130的和等于阀80的近端85的周长。例如,如果一个扇形体的弧长130等于0.5英寸,那么阀80的近端85的周长大约是2英寸。
现在参照图8到图10,在一个实施例中,公开了一种用于调节流体流动的医疗装置,包括构造成与导管的近端连接的阀壳150。该医疗装置还包括其中设置了至少一个双向狭口阀160的膜片155,其中该膜片近似拱顶结构165。狭口阀160可以具有线性或者非线性的取向。阀壳150还构造成在膜片155的周边部分170处固定该膜片155。膜片155的中央部分175相对于膜片155的周边部分170定位,使得当周边部分170由阀壳150固定时,作用在周边部分170上的压缩力产生将狭口阀160偏压到中性位置的力矩。尽管有将狭口阀160偏压到中性位置的力矩,狭口阀160构造成响应压力(例如,重力引起的液压)在远端方向弯曲。在一个实施例中,膜片的周边部分170的高度为膜片155的转折部171的宽度的至少两倍。在另一个实施例中,周边部分170的高度大致为周边部分的宽度的两倍。在还有另一个实施例中,周边部分170被阀壳压缩大约5-15%。在一个实施例中,膜片155的周边部分170的高度范围从大约0.005英寸到0.075英寸,膜片155的中央部分175的厚度范围从大约0.001英寸到0.003英寸。
总体参考图1和8到12,在一个实施例中,阀壳150包括具有中空部分190的远端185,该中空部分构造成连接导管组件10的第一部分的近端,导管组件10的第一部分15的远端20构造用于放入患者20的脉管系统中。阀壳150还包括具有中空部分200的近端部195,该中空部分200构造成连接到导管10的第二部分40的远端41。导管组件10的第二部分40的近端42构造成连接到流体源43并且还连接到流体去除和流体注入位置44。阀壳150的远端部185和近端部195在互补的切除区域205处相配,将模片155固定在其间。根据所需的从周边部分170的压缩得到的力矩,可以由阀壳150固定膜片155的周边部分170的全部或者一部分。阀壳155的远端部185和近端部195可以通过任何适当的方法(例如粘合或者焊接)固定在一起。在一个实施例中,如同图8中所示,膜片155固定,使得其垂直于通过阀壳150的流体流。膜片155可以为大致圆形,椭圆形,矩形,或者任何其他适合的形状。
在另一个实施例中,膜片155还包括至少一个臂或者突出210。该突出210可以位于膜片155的近端以帮助狭口阀160在吸取之后回到中性位置。当狭口阀160在吸取期间打开时,突出210接触阀壳150,从而形成与接触方向相反的力矩以帮助狭口阀160在吸取之后回到中性位置。在不同的实施例中,可以在膜片155的远端和/或近端两者上添加多个突出以优化阀功能。
在另一个实施例中,构造膜片155使得膜片的近端与狭口阀相接的部分薄于膜片的相邻部分。狭口阀160附近较薄的区域215在通过膜片155的液流的重力流动期间帮助狭口阀160的致动以及狭口阀性能。在膜片较薄的区域中,可以如图9所示地加固膜片。加固的区域220通过分配来自突起210的力矩帮助将狭口阀160返回到中性位置。此外,加固的区域220在狭口阀160不能回到中性位置的情况下,为相对的阀面230提供二次密封表面(secondary sealing surface)225。在另一个方面,构造膜片155使得阀转折部171薄于膜片155的相邻部分。阀转折部171附近的较薄区域促进了转折部在较低压力(例如重力引起的压力)下的活动。
如同图11和图12中所示,在一个实施例中,膜片155包括多个单向的狭口阀。膜片155可以具有设置在膜片155的中心位置的远端致动的狭口阀240以及设置在膜片155的横向部分上的至少一个近端致动的狭口阀245。远端致动的狭口阀240响应输注引起的压力弯曲而在吸取期间保持封闭。该至少一个近端致动的狭口阀245响应吸取引起的压力弯曲而在输注期间保持封闭。
参照图13和图14,在本发明的一个实施例中,公开了其中设置了至少一个双向狭口阀255的膜片250。该膜片250近似拱顶结构260。该膜片250还包括外接该拱顶结构260的环形构件265。在一个实施例中,环形构件265以其顶点270在近端方向取向。在另一个实施例中,环形构件265以其顶点275在远端方向取向。
现在参照图1和15到17,在一个实施例中,公开了一种阀组件,包括构造成在膜片305的周边部分310处固定膜片305的阀壳300。膜片305具有设置在其中的至少一个狭口阀315,并且在阀壳300内以相对于通过该阀壳300的流体流的方向成一钝角的方向取向。该阀壳300包括具有中空部分325的远端320,所述中空部分325构造成连接导管组件10的第一部分15的近端30。导管组件10的第一部分15的远端20构造用于放入患者25的脉管系统12中。阀壳300还包括具有中空部分335的近部330,所述中空部分335构造成连接导管组件10的第二部分40的远端41。导管组件10的第二部分40的近端42构造用于连接到流体源43以及还连接到流体去除和流体注入位置44。阀壳300的远端部320和近端部330在互补的切除区域340处相配,将模片305固定在其间。根据所需的从周边部分310的压缩得到的力矩,可以由阀壳300固定膜片305的周边部分310的全部或者一部分。膜片305可以为大致圆形,大致椭圆形,大致矩形,或者任何其他适合的形状,并且也可以近似拱顶结构。阀壳300的远端部320和近端部330可以通过任何适当的方法(例如粘合或者焊接)固定在一起。在另一个实施例中,受到压力致动(例如不与阀壳300的任何部分接触)的膜片305的表面积在膜片305的近端上大于膜片305的远端。设置在膜片305中的狭口阀315受到压力致动的量(例如不与阀壳300的任何部分接触)在膜片315的近端和远端上相等。这可以通过变化阀壳300的远端部320和近端部330的形状或大小来实现。
现在参照图18和19,在另一实施例中,膜片从膜片305的横向部分345到膜片305的相反的横向部分350变窄。在另一个实施例中,膜片305具有设置在膜片305的相反侧上的两个狭口阀355。每个狭口阀355都是单向的。第一阀构造成响应输注引起的压力差在远端方向致动。第二阀构造成响应吸取引起的压力差在近端方向致动。膜片305的横向部分的相对厚度控制狭口阀355的致动压力。
现在参照图20,在另一个方面中,公开了一种用于调节流体流动的医疗装置,包括具有封闭的远端375和开放的近端380的通常圆柱形构件370。近端380还包括肩部件385,肩部件385构造成至少部分由阀壳固定。圆柱形构件370具有设置在其中并且平行于圆柱形构件370的纵轴线取向的至少一个狭口阀390。在另一个方面,圆柱形构件370还包括设置在圆柱形构件370上的多个狭口阀390。
总体参照图21到26,公开了其中设置了至少一个狭口阀405的用于调节流体流动的膜片400。膜片400可以在膜片的周边部分410处固定在阀壳中。在该实施例中,膜片400的近端表面415基本平坦。同样,膜片400的远端表面420基本平坦。膜片400的中央部分420薄于膜片400的外围区域425。在另一个实施例中,膜片400的远端表面430基本平坦而近端表面435基本圆锥形435。在另一个实施例中,膜片400的近端表面440基本平坦而膜片400的远端表面近似球冠445。在另一个实施例中,膜片400的远端表面450近似球冠而膜片400的近端表面455也近似球冠。膜片400的相对的球冠的虚拟中心可以共线。远端表面455上的球冠可以小于近端表面450上的球冠。在还有另一个实施例中,膜片400的近端表面460基本圆锥形。膜片400的远端表面465也基本圆锥形。
这里讨论的膜片可以由弹性材料(例如具有等级从大约30到60的肖氏A硬度的硅橡胶)模制一片。应当注意这里讨论的任何膜片可以由任何弹性材料制成,包括但不限制于聚异戊二烯,丁基橡胶,卤化丁基橡胶,聚丁二烯,丁苯橡胶,丁腈橡胶,水合(hydrated)丁腈橡胶,弹性体,弹性体,氯丁二烯(chloroprene)橡胶,聚氯丁二烯,氯丁(二烯)橡胶(neoprene),氯丁橡胶(baypren),EPM(乙丙橡胶,一种聚乙烯和聚丙烯的共聚物渣(copolymer faeces)),EPDM橡胶(三元乙丙橡胶,一种聚乙烯、聚丙烯和二烯成分的三元共聚物),表氯醇橡胶,聚丙烯酸橡胶,氟硅橡胶,含氟弹性体,弹性体,弹性体,弹性体,Dai-弹性体,全氟弹性体,四氟乙烯/丙烯橡胶,氯磺化聚乙烯,弹性体,乙烯-乙酸乙烯酯,弹性体,弹性体,聚氨酯橡胶,节肢弹性蛋白,弹性蛋白,和/或聚硫橡胶。
这里讨论的阀壳可以由热塑性材料(例如具有等级从大约60到85的肖氏A硬度的聚对苯二甲酸乙二酯)模制为一块或多块。应当注意,这里讨论的任何阀壳可以由任何热塑性材料制成,包括但不限制于,丙烯腈-丁二烯-苯乙烯,丙烯酸,赛璐珞,乙酸纤维素,乙烯-乙酸乙烯酯,乙烯-乙烯醇,氟塑料,离子聚合物,聚甲醛,聚丙烯酸酯,聚丙烯腈,聚酰胺,聚酰胺-酰亚胺,聚芳基醚酮,聚丁二烯,聚丁烯,聚对苯二甲酸丁二酯,聚对苯二甲酸乙二酯,聚对苯二甲酸亚环己基-二亚甲酯,聚碳酸酯,聚羟基链烷酸酯,聚酮,聚酯,聚乙烯,聚醚醚酮,聚醚酰亚胺,聚醚砜,聚乙烯氯化物(polyethylenechlorinate),聚酰亚胺,聚乳酸,聚甲基戊烯,聚苯醚,聚苯硫醚,聚二甲苯酰胺,聚丙烯,聚苯乙烯,聚砜,和/或聚氯乙烯。
这里描述的任何导管可以由适合放入患者的部位中的任何生物相容性材料制造。
尽管上述实施例示出了压力致动阀和阀组件的具体构造,但这类实施例是示例性的。因此,本公开内容考虑和包括很多不同的实施例。还应当理解用于控制通过导管的流体流的装置和方法可以与向患者施用或者从患者取出流体的任何方法或装置一起使用。
尽管为了示出本公开内容的方面,在这里包括了特定实施例和细节,但是本领域技术人员将清楚在不偏离本公开内容的范围的情况下,可以对这里公开的系统、器械和方法进行各种变化,本发明的范围部分由所附权利要求限定。这里以及权利要求中使用的词语“包括”和“具有”应具有与词语“包含”相同的含义。
Claims (32)
1.一种医疗装置,包括:
膜片,具有设置在其中的至少一个狭口阀;以及
至少一个阀控构件,所述阀控构件构造成控制膜片的变位;
其中所述阀控构件包括至少一个臂,所述臂从该阀控构件的外部延伸到该阀控构件的内部。
2.如权利要求1所述的医疗装置,其中所述阀控构件构造成覆盖膜片的至少一部分,而不覆盖所述至少一个狭口阀的任何部分。
3.如权利要求1所述的医疗装置,其中所述狭口阀的至少一部分具有非线性取向。
4.如权利要求1所述的医疗装置,其中所述狭口阀还包括取向为不同方向的多个相互连接的线性狭口。
5.一种用于调节流体流动的医疗装置,包括:
膜片,具有设置在其中的至少一个狭口阀,所述狭口阀构造成响应流体引起的压力而致动;以及
阀壳,构造成在所述膜片的周边部分处固定膜片;
其中构造所述膜片使得作用在膜片周边部分上的压缩力产生将所述狭口阀偏压到中性位置的力矩。
6.如权利要求5所述的医疗装置,其中所述膜片的外部厚于膜片的内部。
7.如权利要求5所述的医疗装置,其中所述膜片的外部薄于膜片的内部。
8.如权利要求5所述的医疗装置,其中所述膜片的远端的至少一部分近似拱顶结构。
9.如权利要求8所述的医疗装置,其中所述膜片还包括外接该拱顶结构的凹环形构件。
10.如权利要求5所述的医疗装置,其中所述膜片还包括在该膜片近端上的至少一个突出构件,其构造成帮助所述狭口阀回到偏压的中性位置。
11.如权利要求5所述的医疗装置,其中所述膜片还包括加固的区域。
12.如权利要求5所述的医疗装置,其中所述膜片还包括在膜片近端上的一对位于中央的相对的突出构件,以帮助所述狭口阀回到偏压的中性位置。
13.如权利要求5所述的医疗装置,其中所述膜片还包括至少一个狭口阀二次密封表面。
14.如权利要求5所述的医疗装置,其中所述狭口阀设置在膜片的中央位置,该狭口阀构造成仅在远端方向致动。
15.如权利要求5所述的医疗装置,其中至少一个狭口阀设置在所述膜片的横向部分上,该横向狭口阀构造成仅在近端方向致动。
16.如权利要求5所述的医疗装置,其中所述膜片受到流体压力的近端部分的表面积大于该膜片受到流体压力的远端部分的表面积。
17.如权利要求16所述的医疗装置,其中所述膜片远端部分上的狭口阀受到流体压力的量等于该膜片近端部分上的狭口阀表面受到流体压力的量。
18.一种用于调节流体流动的医疗装置,包括:
膜片,具有设置在其中的至少一个狭口阀,其中所述膜片从该膜片的横向部分向该膜片相对的横向部分变窄;
阀壳,构造成在所述膜片的周边部分处固定该膜片。
19.如权利要求18所述的医疗装置,其中所述膜片以相对于通过阀壳的流动方向的钝角取向。
20.如权利要求18所述的医疗装置,其中在所述膜片的相对两侧上提供至少两个狭口阀。
21.一种医疗装置,包括其中设置了狭口阀的膜片,其中构造所述膜片使得该膜片与所述狭口阀相接的部分薄于该膜片的相邻部分。
22.如权利要求21所述的医疗装置,其中所述膜片由阀壳在周边部分处固定,并且该膜片周边部分的高度为该膜片转折部分的宽度的至少两倍。
23.如权利要求21所述的医疗装置,其中所述膜片由阀壳在周边部分处固定,并且该膜片周边部分的高度为该膜片转折部分的宽度的至少两倍。
24.如权利要求21所述的医疗装置,其中所述膜片由阀壳在周边部分处固定,并且该膜片周边部分的高度为该膜片周边部分的宽度的大约两倍。
25.如权利要求21所述的医疗装置,其中所述膜片由阀壳在周边部分处固定,并且该膜片的周边部分被阀壳压缩大约5-15%。
26.如权利要求21所述的医疗装置,其中所述膜片由阀壳在周边部分处固定,并且该膜片的中央部分受到来自该膜片周边部分的压缩的力矩,从而将所述狭口阀偏压到中性位置。
27.如权利要求21所述的医疗装置,其中所述膜片由阀壳在周边部分处固定,并且该膜片受到流体压力的近端部分的表面积大于该膜片受到流体压力的远端部分的表面积。
28.一种医疗装置,包括:
圆柱形构件,具有构造成由阀壳在肩构件处固定的近端,其中所述肩构件具有的周长大于主圆柱形构件的周长;以及
至少一个狭口阀,位于所述圆柱形构件的外壁上,所述狭口基本平行于该圆柱形构件的纵轴线取向。
29.一种医疗装置,包括:
压力启动阀,具有开放的圆形近端和至少部分封闭的远端;
其中所述远端至少包括部分平坦的表面,所述部分平坦的表面具有至少两个以不同方向取向的狭口,所述狭口具有至少一个公共交点并且构造成响应第一压力差在远端方向致动;
其中所述阀的部分远端由相交的狭口的内角限定,该阀的远端的外部从该阀的远端朝着该阀的近端逐渐变细,从而在相交的狭口的内角限定的区域中于该阀的远端的外部上形成沟道。
30.如权利要求29所述的医疗装置,还包括提供在所述阀的远端上的至少一个近端致动的狭口阀,所述近端致动的狭口阀构造成响应第二压力差在近端方向致动,其中第二压力差高于第一压力差。
31.一种方法,包括:
将导管的远端放入患者的脉管系统中,其中所述导管的近端具有与其连接的医疗装置,所述医疗装置包括其中设置了至少一个狭口阀的膜片,该医疗装置还包括构造成在所述膜片的周边部分处固定该膜片的阀壳,其中所述膜片的中央部分相对于该膜片的周边部分定位,使得作用在该膜片周边部分上的压缩力产生将所述狭口阀偏压到中性位置的力矩;
形成跨狭口阀的第一液体压力差;以及
形成跨狭口阀的第二压力差。
32.一种压力启动阀,用于调节通过伸长的管状构件的流体流动,所述阀包括:
阀部件,用于响应第一压力差在一个方向上以及响应第二压力差在第二方向上选择性调节流体流动,所述阀部件具有当受到压缩力时将该阀部件偏压到中性位置的周边部分;以及
阀壳,构造成固定所述阀部件的周边部分。
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- 2006-12-04 AT AT06838919T patent/ATE541609T1/de active
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- 2006-12-04 ES ES06838919T patent/ES2381137T3/es active Active
- 2006-12-04 US US11/566,620 patent/US9044541B2/en active Active
- 2006-12-04 WO PCT/US2006/046216 patent/WO2007064990A2/en active Application Filing
- 2006-12-04 EP EP06838919A patent/EP1954343B1/en active Active
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Cited By (6)
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CN109519571A (zh) * | 2017-09-19 | 2019-03-26 | 上汽通用汽车有限公司 | 单向阀以及汽车 |
CN109603000A (zh) * | 2017-10-04 | 2019-04-12 | B.布劳恩梅尔松根股份公司 | 用于医用流体管路系统的阀装置 |
US11241567B2 (en) | 2017-10-04 | 2022-02-08 | B. Braun Melsungen Ag | Valve device for a medical fluid line system |
CN109603000B (zh) * | 2017-10-04 | 2023-05-23 | B.布劳恩梅尔松根股份公司 | 用于医用流体管路系统的阀装置 |
CN113581108A (zh) * | 2019-12-30 | 2021-11-02 | 福建中维动力科技股份有限公司 | 一种用于转向装置保护罩的压力开关 |
WO2023005226A1 (zh) * | 2021-07-27 | 2023-02-02 | 上海微创生命科技有限公司 | 双向阀、双向阀组件及picc导管 |
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CA2626335C (en) | 2013-11-05 |
US9943678B2 (en) | 2018-04-17 |
US9044541B2 (en) | 2015-06-02 |
US11305102B2 (en) | 2022-04-19 |
US20150250994A1 (en) | 2015-09-10 |
US20180221642A1 (en) | 2018-08-09 |
EP1954343B1 (en) | 2012-01-18 |
CN103203054A (zh) | 2013-07-17 |
CN101309719B (zh) | 2013-03-06 |
WO2007064990A2 (en) | 2007-06-07 |
CA2626335A1 (en) | 2007-06-07 |
US20230401557A1 (en) | 2023-12-14 |
WO2007064990A3 (en) | 2007-07-19 |
CN103203054B (zh) | 2016-08-03 |
EP1954343A2 (en) | 2008-08-13 |
ATE541609T1 (de) | 2012-02-15 |
US20070161940A1 (en) | 2007-07-12 |
ES2381137T3 (es) | 2012-05-23 |
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