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公开(公告)号：US5533708A
公开(公告)日：1996-07-09
申请号：US378506
申请日：1995-01-26
CPC分类号： A61M39/045 , F16L29/005 , A61M2039/0036 , Y10S604/905
摘要： The present invention provides a medical coupling site which is adapted to be attached directly to a standard male luer lock fitting. The coupling site includes a valve element contained within a tubular housing. The housing is provided with a threaded portion for engaging the threaded locking collar of a male luer lock whereby the male luer lock will be held in positive mechanical locking engagement with the coupling site. The valve element is provided with rib members extending inwardly from an inner wall of the valve element toward a slit formed in a diaphragm such that the rib members act to bias the slit to a closed position. The housing includes a flange extending radially inwardly over the diaphragm and defining a diameter for frictionally engaging a male luer in locking engagement. In addition, an exposed surface of the diaphragm is formed with surface texturing to define a roughened surface. The roughened surface reduces the surface friction between the diaphragm and a male luer as the luer is inserted through the diaphragm.
摘要翻译： 本发明提供一种适于直接附接到标准公路厄尔锁配件的医疗联接部位。 联接部位包括容纳在管状壳体内的阀元件。 壳体设置有螺纹部分，用于接合公鲁尔锁的螺纹锁定环，由此阳鲁尔锁将与联接位置保持正向机械锁定接合。 阀元件设置有从阀元件的内壁朝向形成在隔膜中的狭缝向内延伸的肋构件，使得肋构件用于将狭缝偏压到闭合位置。 壳体包括在隔膜上径向向内延伸的凸缘并且限定用于与插入接合的公路厄尔摩擦接合的直径。 此外，隔膜的暴露表面形成有表面纹理以限定粗糙表面。 当鲁尔插入隔膜时，粗糙表面减小隔膜和阳鲁尔之间的表面摩擦。
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公开(公告)号：US08328769B2
公开(公告)日：2012-12-11
申请号：US13295807
申请日：2011-11-14
IPC分类号： A61M5/14
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
摘要翻译： 用于输注导管的压力驱动流量控制阀允许液体的重力流动通过导管并进入患者体内，同时阻止血液从患者回流并进入导管。 该阀具有半球体，具有突出的周向凸缘和常闭的直径狭缝。 狭缝在凸形外表面上比在凹面内表面上更长。 在狭缝附近的区域中，圆顶厚度减小，从而减小狭缝朝向凹面折叠时的全顶端偏转。 内正交肋将狭缝偏压闭合。 在施加预定压力时，狭缝朝向凹面开口以允许正向流体流动。 在较低压力下，狭缝关闭以检查流体流动。 需要较大的反向压力以将狭缝朝向凹面折叠以允许反向流体流动。
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公开(公告)号：US20120059312A1
公开(公告)日：2012-03-08
申请号：US13295807
申请日：2011-11-14
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
摘要翻译： 用于输注导管的压力驱动流量控制阀允许液体的重力流动通过导管并进入患者体内，同时阻止血液从患者回流并进入导管。 该阀具有半球体，具有突出的周向凸缘和常闭的直径狭缝。 狭缝在凸形外表面上比在凹面内表面上更长。 在狭缝附近的区域中，圆顶厚度减小，从而减小狭缝朝向凹面折叠时的全顶端偏转。 内正交肋将狭缝偏压闭合。 在施加预定压力时，狭缝朝向凹面开口以允许正向流体流动。 在较低压力下，狭缝关闭以检查流体流动。 需要较大的反向压力以将狭缝朝向凹面折叠以允许反向流体流动。
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公开(公告)号：US20100036328A1
公开(公告)日：2010-02-11
申请号：US12577632
申请日：2009-10-12
IPC分类号： A61M5/175
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
摘要翻译： 用于输注导管的压力驱动流量控制阀允许液体的重力流动通过导管并进入患者体内，同时阻止血液从患者回流并进入导管。 该阀具有半球体，具有突出的周向凸缘和常闭的直径狭缝。 狭缝在凸形外表面上比在凹面内表面上更长。 在狭缝附近的区域中，圆顶厚度减小，从而减小狭缝朝向凹面折叠时的全顶端偏转。 内正交肋将狭缝偏压闭合。 在施加预定压力时，狭缝朝向凹面开口以允许正向流体流动。 在较低压力下，狭缝关闭以检查流体流动。 需要较大的反向压力以将狭缝朝向凹面折叠以允许反向流体流动。
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公开(公告)号：US07601141B2
公开(公告)日：2009-10-13
申请号：US10304833
申请日：2002-11-26
IPC分类号： A61M5/00
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
摘要翻译： 用于输注导管的压力驱动流量控制阀允许液体的重力流动通过导管并进入患者体内，同时阻止血液从患者回流并进入导管。 该阀具有半球体，具有突出的周向凸缘和常闭的直径狭缝。 狭缝在凸形外表面上比在凹面内表面上更长。 在狭缝附近的区域中，圆顶厚度减小，从而减小狭缝朝向凹面折叠时的全顶端偏转。 内正交肋将狭缝偏压闭合。 在施加预定压力时，狭缝朝向凹面开口以允许正向流体流动。 在较低压力下，狭缝关闭以检查流体流动。 需要较大的反向压力以将狭缝朝向凹面折叠以允许反向流体流动。
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公开(公告)号：US20130012870A1
公开(公告)日：2013-01-10
申请号：US13618002
申请日：2012-09-14
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
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公开(公告)号：US20090264832A1
公开(公告)日：2009-10-22
申请号：US12492370
申请日：2009-06-26
IPC分类号： A61M39/24
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
摘要翻译： 用于输注导管的压力驱动流量控制阀允许液体的重力流动通过导管并进入患者体内，同时阻止血液从患者回流并进入导管。 该阀具有半球体，具有突出的周向凸缘和常闭的直径狭缝。 狭缝在凸形外表面上比在凹面内表面上更长。 在狭缝附近的区域中，圆顶厚度减小，从而减小狭缝朝向凹面折叠时的全顶端偏转。 内正交肋将狭缝偏压闭合。 在施加预定压力时，狭缝朝向凹面开口以允许正向流体流动。 在较低压力下，狭缝关闭以检查流体流动。 需要较大的反向压力以将狭缝朝向凹面折叠以允许反向流体流动。
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公开(公告)号：US08882742B2
公开(公告)日：2014-11-11
申请号：US13618002
申请日：2012-09-14
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
摘要翻译： 用于输注导管的压力驱动流量控制阀允许液体的重力流动通过导管并进入患者体内，同时阻止血液从患者回流并进入导管。 该阀具有半球体，具有突出的周向凸缘和常闭的直径狭缝。 狭缝在凸形外表面上比在凹面内表面上更长。 在狭缝附近的区域中，圆顶厚度减小，从而减小狭缝朝向凹面折叠时的全顶端偏转。 内正交肋将狭缝偏压闭合。 在施加预定压力时，狭缝朝向凹面开口以允许正向流体流动。 在较低压力下，狭缝关闭以检查流体流动。 需要较大的反向压力以将狭缝朝向凹面折叠以允许反向流体流动。
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公开(公告)号：US08057442B2
公开(公告)日：2011-11-15
申请号：US12577632
申请日：2009-10-12
IPC分类号： A61M5/00
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
摘要翻译： 用于输注导管的压力驱动流量控制阀允许液体的重力流动通过导管并进入患者体内，同时阻止血液从患者回流并进入导管。 该阀具有半球体，具有突出的周向凸缘和常闭的直径狭缝。 狭缝在凸形外表面上比在凹面内表面上更长。 在狭缝附近的区域中，圆顶厚度减小，从而减小狭缝朝向凹面折叠时的全顶端偏转。 内正交肋将狭缝偏压闭合。 在施加预定压力时，狭缝朝向凹面开口以允许正向流体流动。 在较低压力下，狭缝关闭以检查流体流动。 需要较大的反向压力以将狭缝朝向凹面折叠以允许反向流体流动。
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公开(公告)号：US07959614B2
公开(公告)日：2011-06-14
申请号：US12492370
申请日：2009-06-26
IPC分类号： A61M5/00
CPC分类号： A61M39/24 , A61M39/1011 , A61M2039/242 , A61M2039/2426
摘要： A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
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