CN101756785A - 路厄锁适配器 - Google Patents
路厄锁适配器 Download PDFInfo
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Abstract
本发明涉及路厄锁适配器。一种用于医疗容器的适配器,所述医疗容器包括具有外径和螺纹内径的套筒以及位于套筒内的锥形柱,所述适配器包括:具有螺纹表面的近端部分,所述螺纹表面包括构造成螺纹啮合套筒的螺纹内径的至少一个螺纹;具有表面部分和圆柱凹槽的远端部分;导管,所述导管定位在锥形凹槽和圆柱凹槽之间,使得所述导管与锥形凹槽和圆柱凹槽流体连通;以及纵轴。近端部分包括由壁、斜面和座限定的锥形凹槽,并且表面部分包括用于握持的部件,在一个实施方式中用于握持的部件为至少两个翼。
Description
技术领域
本发明涉及医疗设备,更具体地涉及用于医疗容器的适配器,以及将适配器附接至医疗容器的方法。
背景技术
一种用于在不同医疗部件之间连接和建立流体连通的已知容器为路厄锁(luer lock)。路厄容器广泛地用于将注射器连接至医疗器具-诸如针,以及将医疗导管彼此连接。另外,路厄锁容器具有允许不同尺寸和型号的器具连接至相同容器的标准构造。
传统的路厄连接组件通常包括具有截头圆锥体形状的阳路厄尖端部件或配合件,所述阳路厄尖端部件或配合件***具有截头圆锥形接收腔的阴路厄部件或配合件中。相对的圆锥表面互相接触以形成密封的摩擦配合。
存在两种常见类型的路厄连接组件。一种类型通常被称为路厄滑座(luerslip),其中通过阳路厄尖端和阴路厄部件之间的摩擦配合保持连接。另一种类型通常被称为路厄锁连接器,其中阳路厄尖端由具有螺纹内表面的环形锁定套筒环绕。***件包括围绕外表面形成的对应的单螺纹。螺纹套筒与螺纹外表面的啮合建立阳路厄尖端和***件之间的连接,同时防止意外脱开。
该传统路厄锁容器在全世界被有效使用,但是仍旧存在一些缺点。一个缺点是容器易于破裂和断裂,尤其是在套筒与注射器筒相交处以及在锥形柱与注射器筒相交处。这种破裂和断裂危及容器与适配器之间的机械连接的强度,并且危及容器与适配器之间的流体密封。从注射器泄漏的流体是个特别的问题,因为它们对医疗程序造成不利影响,并且还给患者和医疗人员带来生物危害。
该情形可能因医疗装置或连接至注射器容器的其它器械而变得复杂,这些装置和器械可能相对较长或者需要由医疗人员进行侵入性操作。例如,对来自人体不同器官的组织和细胞的收集可能需要相对较长的套管并且需要由医师进行侵入性操作,这可能损坏容器。由于阴适配器上的螺纹和套筒的螺纹内表面之间只有一个接触点,侵入性操作可能引起***件上的螺纹破裂或从部件完全折断,从而危及路厄连接的完整性。
另外,需要扭转运动来将适配器锁定到容器上,这可以使得在适配器上的阳螺纹与容器上的阴螺纹啮合期间套筒向外扩张。该扩张也可以导致破裂和断裂发生,或引起导致破裂和断裂的微破裂。
在一些实例中,一个容器可以在多个医疗程序中使用。由于每个程序需要将旧的适配器从容器移除而将新的适配器附着到其上,对于适配器来说存在多种过转矩的机会。在相对的螺旋表面彼此接触以形成密封摩擦配合之后,当将适配器连接至注射器容器上的操作者持续扭动适配器时,可能导致过转矩。该过转矩可能导致锥形柱的尖端在该尖端与适配器连接的位置处变形。这种变形可能导致锥形柱的尖端闭塞,从而减少可能流过路厄连接的流体量,进而使注射器容器的有效性显著降低。在极端实例中,过转矩可能导致锥形柱在与注射器容器连接处破裂。过转矩还可导致在套筒与注射器筒交接处以及在锥形柱与注射器筒交接处发生损坏。
另外,路厄连接可以用于连接暴露于高压的医疗设备,诸如在血管造影程序中的造影剂注射。在这种程序中,该连接将暴露于可以达到大约1200磅每平方英寸的压力。当在这种血管造影程序中监测和控制流体注射率时,减少被注入流体的量的任何闭塞将不利地影响程序的执行并且导致不精确或完全不可用的测试结果。
所以,本领域需要一种用于路厄锁连接的适配器,其允许使用者将适配器牢固地固定到容器,同时防止使用者过度转动适配器。本领域还需要如下适配器,其可以减少垂直施加到适配器纵轴上的力对适配器和容器的损坏。
发明内容
在本发明的一个实施方式中,用于医疗容器的适配器包括:具有螺纹表面的近端部分,所述医疗容器包括具有外径和螺纹内径的套筒和位于套筒内的锥形柱,所述螺纹表面包括构造成螺纹啮合套筒的螺纹内径的至少一个螺纹;具有表面部分和圆柱凹槽的远端部分;导管,其定位在锥形凹槽和圆柱凹槽之间,使得所述导管与锥形凹槽和圆柱凹槽流体连通;以及纵轴。近端部分包括由壁、斜面和座限定的锥形凹槽,并且表面部分包括用于握持的部件。
在本发明实施方式的一个方面,座垂直于纵轴。
在本发明实施方式的另一方面,在座和壁之间形成的角度大约为90°。
在本发明实施方式的另一方面,在座和壁之间形成的角度小于90°。
在本发明实施方式的另一方面,在座和斜面之间形成的角度大于大约90°并且小于大约180°。
在本发明实施方式的另一方面,至少一个螺纹是多个螺纹。
在本发明实施方式的另一方面,多个螺纹是两个螺纹。
在本发明实施方式的另一方面,用于握持的部件是从表面部分延伸的至少两个翼。
在本发明实施方式的另一方面,该至少两个翼大致平行于纵轴。
在本发明实施方式的另一方面,该至少两个翼沿轴向与纵轴成至少5°。
在本发明实施方式的另一方面,用于握持的部件是多个肋。
在本发明实施方式的另一方面,用于握持的部件是多个滚花(knurl)。
在本发明实施方式的另一方面,表面部分还包括从其上突出的环。
在本发明的另一个实施方式中,用于将适配器固定至包括具有外径和螺纹内径的套筒以及位于套筒内的锥形柱的医疗容器的方法包括下列步骤:(a)提供适配器,所述适配器包括:近端部分,其具有螺纹表面,该螺纹表面包括构造成螺纹啮合套筒的螺纹内径的至少一个螺纹;具有表面部分和圆柱凹槽的远端部分;导管,其定位在锥形凹槽和圆柱凹槽之间,使得所述导管与锥形凹槽和圆柱凹槽流体连通;以及纵轴,其中近端部分包括由壁、斜面和座限定的锥形凹槽,并且表面部分包括用于握持的部件;(b)将锥形柱***锥形凹槽中;以及(c)扭转适配器从而使适配器的至少一个螺纹与套筒的螺纹内径啮合。
在本发明另一个实施方式中,在用于将适配器固定至医疗容器的方法中,所述医疗容器包括具有外径、螺纹内径和上表面的套筒以及位于套筒内的锥形柱,所述方法包括如下步骤:(a)提供适配器,所述适配器包括:具有螺纹表面的近端部分,所述螺纹表面包括构造成螺纹啮合套筒的螺纹内径的至少一个螺纹,所述近端部分包括由壁、斜面和座限定的锥形凹槽;具有表面部分和圆柱凹槽的远端部分;导管,其定位在锥形凹槽和圆柱凹槽之间,使得所述导管与锥形凹槽和圆柱凹槽流体连通;以及纵轴,其中表面部分包括用于握持的部件,并且近端还包括从螺纹表面突出的环;(b)将锥形柱***锥形凹槽中;以及(c)扭转适配器从而使适配器的至少一个螺纹啮合套筒的螺纹内径,直到所述环接触边缘的上表面。
附图说明
图1A是路厄锁适配器的侧视图;
图1B是旋转90°的图1A的路厄锁适配器的侧视图;
图1C是图1A的路厄锁适配器的俯视图;
图2是图1A的路厄锁适配器的横截面视图;
图3A是路厄锁适配器的另一实施方式的侧视图;
图3B是路厄锁适配器的另一替代性实施方式的侧视图;
图3C是路厄锁适配器的另一替代性实施方式的侧视图;
图4是附接至医疗容器的图1A的路厄锁适配器的横截面视图;
图5是附接至医疗容器的路厄锁适配器的替代性实施方式的横截面视图。
具体实施方式
现在参照图1A、1B、1C和2,其中示出了用于附接至医疗设备的适配器10。适配器10可以包括具有形成在其中的锥形凹槽22的近端20。适配器10还可以包括具有形成在其中的圆柱凹槽32的远端30。适配器10还可以包括在锥形凹槽22和圆柱凹槽32之间形成的导管40。导管40可以与锥形凹槽22和圆柱凹槽32两者流体连通。
在构造方面,适配器10可以包括刚性或半刚性材料,诸如金属、硬塑料或复合物。适配器10可以通过模制、机械加工或其它方式形成为具有所需特征和尺寸。
如图1A和1B所示,适配器10总体上可以是圆柱形的并且具有纵轴L。该适配器还可以包括表面部分33,所述表面部分33包括用于握持的部件34。在一个实施方式中,用于握持的部件34可以包括至少两个翼,其从表面部分33向外延伸。可以想象的是,用于握持的部件34具有如下尺寸,使得它们不允许扭转适配器10的操作者获得充分的机械有利条件来过度转动适配器10,从而损坏适配器和/或适配器10可能附接到其上的医疗设备。容器易于损坏,例如,在套筒与注射器筒交接处以及在锥形柱与注射器筒交接处。在如图3A所示的替代性实施方式中,用于握持的部件34’可以包括至少两个翼,所述至少两个翼可以相对于表面部分33间隔开大约180°并且轴向偏斜角度α。选择角度α,使得当使用者试图过度转动适配器10时,使用者的手指可能从用于握持的部件滑出,从而防止过转矩。例如,角度α可以是5°。在其它替代性实施方式中,用于握持的部件可以是肋34”,如图3B所示,或滚花34”’,如图3C所示。
如图2所示,适配器10可以包括由内壁26、斜面27和座28限定的锥形凹槽22。在一个实施方式中,座28可以垂直于纵轴L。还可想象的是,座28和壁26之间的角度-角度β可以是大约90°。而且,可以想象的是,角度β可以是例如小于90°,在这些情形中座28向锥形凹槽22弯曲并且进入锥形凹槽22,而不是大致垂直于纵轴L来定向。还可以想象的是,座28和斜面27之间的角度-角度γ可以是在大约90°和大约180°之间。
现在参照图4,适配器10的远端还可以包括医疗器械附连到其中的圆柱凹槽32,医疗器械包括医疗管或针,可通过合适的方法-诸如焊接、铜焊或压配合附连到圆柱凹槽32中。可替代的是,适配器10和医疗器械可以由同一件材料机械加工或模制而成。
再次参照图1A,适配器10还可以包括具有螺纹表面23的近端20。螺纹表面23可以包括至少一个从其延伸的螺纹24。该至少一个螺纹24有助于与医疗容器螺纹啮合,所述医疗容器可以包括具有外径和螺纹内径的套筒。在一个实施方式中,至少一个螺纹24可以是多个螺纹。在另一个实施方式中,至少一个螺纹24可以是两个螺纹。具体而言,螺纹构造可以是双头、双螺纹型式。
再次参照图4,适配器10可以螺纹附接至具有套筒110的医疗容器100上,所述套筒110具有外径112和可以包括螺纹116的内径114。可以构造至少一个螺纹24,使得至少一个螺纹24可以螺纹啮合套筒110的内径的螺纹116。将至少一个螺纹24设置为两个螺纹可以导致在至少一个螺纹24和医疗容器100的螺纹116之间形成增大的接触。如在图4中由至少一个螺纹24的构造所示,至少一个螺纹24在适配器10的直径上的间隔开大约180°的两点处接触套筒螺纹116。所以,如果沿一个方向施加垂直于纵轴的力给适配器10,适配器10的一个侧面上的至少一个螺纹24可能趋向于向上偏转并且接触对应螺纹116的顶面,其中力从适配器10的该侧面上施加。相反,适配器10的被施加力的侧面的相对侧面上的至少一个螺纹24可能趋向于向下偏转并且接触对应螺纹116的底面,从而在适配器10和容器100之间产生两个点的接触,并且提供对所施加的力的额外抵抗。相反,现有技术的适配器仅包括一个螺纹并且由此与容器之间只有一个接触点。由于现有技术的容器和适配器之间没有第二个接触点,施加给现有技术的适配器的力可能使附接至适配器的螺纹破裂或在极端实例中从适配器完全切断螺纹。所以,可以想象的是,至少一个螺纹24被设计以获得充分的机械优点,从而当适配器10受到垂直于其纵轴的力的作用时,可以减少对适配器10的这种损坏以及在套筒110与注射筒交接处的损坏和在锥形柱120与注射筒交接处的损坏。
继续参照图4,通过使容器100的锥形柱120与锥形凹槽22对齐并且将适配器10压在锥形柱120上,同时使至少一个螺纹24与套筒110的螺纹116啮合,可以将适配器10附接至容器100上。在扭转适配器10的同时,锥形柱120的端部接触座28,在该点处使用者可以感觉到阻力,这表示适配器10已经完全与容器100接合。相反,现有技术的锥形凹槽不包括诸如本发明中公开的座,因而对锥形柱的过度转动以及由此发生的损坏经常产生。
在图5所示的替代性实施方式中,适配器10’可以包括从表面部分32延伸的环50。所以,当适配器10’附接到容器100上时,环50可以接触套筒100的顶面118,使得环50作为可以防止使用者过度转动适配器10’的机械止动件,从而防止对适配器10’和医疗容器100的损坏。而且,对使用者来说环50还可以作为将适配器10’附接至容器100的视觉提示,其中环50和顶面118之间将存在间隙直到适配器10’被充分拧紧。所以,一旦间隙消失,将以信号方式提示使用者适配器10’已经充分拧紧。
在此参照公开的实施方式对本发明进行了描述。显然,在阅读并理解本说明书的基础上,其他人将会想到各种改型和替代方案。当它们落入所附权利要求或其等同体的范围内时,本发明旨在包括所有这些改型和替代方案。
Claims (20)
1.一种用于医疗容器的适配器,所述医疗容器包括具有外径和螺纹内径的套筒和位于所述套筒内的锥形柱,所述适配器包括:
具有螺纹表面的近端部分,所述螺纹表面包括构造成螺纹啮合所述套筒的螺纹内径的至少一个螺纹,所述近端部分包括由壁、斜面和座限定的锥形凹槽,
具有表面部分和圆柱凹槽的远端部分;
导管,所述导管定位在所述锥形凹槽和所述圆柱凹槽之间,使得所述导管与所述锥形凹槽和所述圆柱凹槽流体连通;以及
纵轴;
其中,所述表面部分包括用于握持的部件。
2.如权利要求1所述的适配器,其中,所述座垂直于所述纵轴。
3.如权利要求1所述的适配器,其中,在所述座和所述壁之间形成的角度大约为90°。
4.如权利要求1所述的适配器,其中,在所述座和所述壁之间形成的角度小于90°。
5.如权利要求1所述的适配器,其中,在所述座和所述斜面之间形成的角度大于大约90°并且小于大约180°。
6.如权利要求1所述的适配器,其中,所述至少一个螺纹是多个螺纹。
7.如权利要求6所述的适配器,其中,所述多个螺纹是两个螺纹。
8.如权利要求1所述的适配器,其中,所述用于握持的部件是从所述表面部分延伸的至少两个翼。
9.如权利要求8所述的适配器,其中,所述至少两个翼基本平行于所述纵轴。
10.如权利要求8所述的适配器,其中,所述至少两个翼沿轴向与所述纵轴成至少5°的角。
11.如权利要求1所述的适配器,其中,所述用于握持的部件是多个肋。
12.如权利要求1所述的适配器,其中,所述用于握持的部件是多个滚花。
13.如权利要求1所述的适配器,其中,所述表面部分还包括从其上突出的环。
14.一种用于将适配器固定至医疗容器的方法,所述医疗容器包括具有外径和螺纹内径的套筒和位于套筒内的锥形柱,所述方法包括如下步骤:
(a)提供适配器,所述适配器包括:
具有螺纹表面的近端部分,所述螺纹表面包括构造成螺纹啮合所述套筒的螺纹内径的至少一个螺纹,所述近端部分包括由壁、斜面和座限定的锥形凹槽,
具有表面部分和圆柱凹槽的远端部分;
导管,所述导管定位在所述锥形凹槽和所述圆柱凹槽之间,使得所述导管与所述锥形凹槽和所述圆柱凹槽流体连通;以及
纵轴;
其中,所述表面部分包括用于握持的部件;
(b)将所述锥形柱***所述锥形凹槽中;以及
(c)扭转所述适配器从而使所述适配器的至少一个螺纹与所述医疗容器的螺纹内径啮合。
15.如权利要求14所述的方法,其中,所述座垂直于所述纵轴。
16.如权利要求14所述的方法,其中,所述用于握持的部件是从所述表面部分延伸的至少两个翼。
17.如权利要求14所述的方法,其中,所述至少一个螺纹是多个螺纹。
18.如权利要求17所述的方法,其中,所述多个螺纹是两个螺纹。
19.如权利要求14所述的方法,其中所述表面部分还包括从其上突出的环。
20.一种用于将适配器固定至医疗容器的方法,所述医疗容器包括具有外径、螺纹内径和上表面的套筒以及位于所述套筒内的锥形柱,所述方法包括如下步骤:
(a)提供适配器,所述适配器包括:具有螺纹表面的近端部分,所述螺纹表面包括构造成螺纹啮合所述套筒的螺纹内径的至少一个螺纹,所述近端部分包括由壁、斜面和座限定的锥形凹槽;远端部分,该远端部分具有表面部分和圆柱凹槽;导管,所述导管定位在所述锥形凹槽和所述圆柱凹槽之间,使得所述导管与所述锥形凹槽和所述圆柱凹槽流体连通;以及纵轴,其中,所述表面部分包括用于握持的部件,并且所述近端还包括从所述螺纹表面突出的环;
(b)将所述锥形柱***所述锥形凹槽中;以及
(c)扭转所述适配器从而使所述适配器的至少一个螺纹与所述套筒的螺纹内径啮合,直到所述环接触所述套筒的上表面。
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US9579497B2 (en) | 2017-02-28 |
US20130158520A1 (en) | 2013-06-20 |
CN101756785B (zh) | 2013-11-06 |
ES2572814T3 (es) | 2016-06-02 |
EP2174687A2 (en) | 2010-04-14 |
US8372057B2 (en) | 2013-02-12 |
US20100094260A1 (en) | 2010-04-15 |
EP2174687A3 (en) | 2011-02-09 |
EP2174687B1 (en) | 2016-03-16 |
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