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公开(公告)号：US5535771A
公开(公告)日：1996-07-16
申请号：US288171
申请日：1994-08-10
CPC分类号： A61M39/0606 , A61M39/26 , Y10S604/905 , Y10T137/0402
摘要： A valved adapter for a medical access device includes a body with a longitudinal axis. The body has a proximal first end, a distal second end and a passageway therethrough which has an inside surface. The passageway has a chamber defined by a proximal shoulder and a segmented distal shoulder both projecting inwardly from the surface of the passageway. The chamber is located intermediate the first end and second end of the body. The adapter includes a valve contained within the chamber for selectively obstructing and allowing fluid flow through the passageway. The valve includes an elongate resilient member with an axis substantially coaxial to the longitudinal axis of the body having a proximal end and a distal end. The elongate resilient member is axially compressed between the distal shoulder and the proximal shoulder, the compression biasing the valve to a normally closed position. The proximal end of the resilient member forms a substantially fluid tight seal with the proximal shoulder which obstructs fluid flow through the passageway. The adapter further includes a pusher for selectively further axially compressing the resilient member so that the proximal end of the adapter no longer forms a fluid tight seal with the proximal shoulder thereby allowing fluid flow through the passageway. The adapter includes fittings for attaching the adapter to a medical access device and for attaching fluid delivery devices to the adapter.
摘要翻译： 用于医疗进入装置的阀式适配器包括具有纵向轴线的主体。 主体具有近端第一端，远端第二端和穿过其的通道，其具有内表面。 通道具有由近侧肩部和分段的远侧肩部限定的室，两个远侧肩部从通道的表面向内突出。 腔室位于身体的第一端和第二端之间。 适配器包括容纳在腔室内的阀，用于选择性地阻塞和允许流体流过通道。 阀包括细长的弹性构件，其具有基本上与主体的纵向轴线同轴的轴线，该轴线具有近端和远端。 细长的弹性构件在远端肩部和近侧肩部之间被轴向压缩，压缩将阀门偏压到常闭位置。 弹性构件的近端形成与近侧肩部基本上流体密封的密封，其阻止流体流过通道。 适配器还包括用于选择性地进一步轴向压缩弹性构件的推动器，使得适配器的近端不再与近侧肩部形成流体密封，从而允许流体流过通道。 适配器包括用于将适配器附接到医疗接入装置并用于将流体输送装置附接到适配器的配件。
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公开(公告)号：US5215528A
公开(公告)日：1993-06-01
申请号：US832559
申请日：1992-02-07
CPC分类号： A61M25/0618 , A61M5/3273 , A61M2005/325 , A61M2025/0656
摘要： An assembly for introducing a catheter into a blood vessel is provided. The assembly includes a needle hub having a needle secured thereto. The needle includes an elongate shaft having a bevelled tip. A portion of the needle shaft adjacent to the tip has a relatively large outside diameter. The shaft diameter of this portion exceeds the diameter, of the shaft portion adjoining the tip and the diameter of the shaft portion extending between the enlarged shaft portion and the needle hub. A catheter is mounted over the shaft of the needle, and includes an inner surface which bears against the enlarged shaft portion. A substantially leak-proof seal is thereby provided between the catheter and the needle shaft. A needle tip cover is slidably mounted to the needle shaft and is engageable with the enlarged portion of the shaft to prevent its removal therefrom. The catheter is releasably mounted to the needle tip cover.
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公开(公告)号：US06866656B2
公开(公告)日：2005-03-15
申请号：US10056417
申请日：2002-01-24
CPC分类号： A61L29/085 , Y10T428/266 , Y10T428/3154 , C08L39/06 , C08L65/04 , C08L27/18
摘要： A lubrication system is disclosed which minimizes friction and that is useful for application on the surface of a flexible portion of a medical device. Such a lubrication system includes a lubricant that is able to move when the flexible portion of the medical device flexes and is biocompatible and is not degraded by the application of alcohol or other conventional medical sterilizing and cleaning agents. The lubricant is bonded to the surface of the flexible portion of the medical device. The lubrication system may be used on an elastomeric septum, such as a silicone rubber elastomer. The lubricant coating may be any type of coating that can be chemically bonded to the elastomer, such as di-paraxylene, poly-(p-xylene), polytetrafluoroethylene, or polyvinylpyrrolidone.
摘要翻译： 公开了一种润滑系统，其最小化摩擦并且可用于在医疗装置的柔性部分的表面上的应用。 这种润滑系统包括润滑剂，其能够在医疗装置的柔性部分弯曲并且是生物相容性并且不会通过施用酒精或其它常规医疗消毒和清洁剂而降解时移动。 润滑剂粘合到医疗装置的柔性部分的表面上。 润滑系统可用于弹性体隔膜，例如硅橡胶弹性体。 润滑剂涂层可以是可以化学键合到弹性体上的任何类型的涂层，例如二对二甲苯，聚（对二甲苯），聚四氟乙烯或聚乙烯吡咯烷酮。
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