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2. 发明授权

US4723550A Leakproof hemostasis valve with single valve member 失效
标题翻译：具有单阀构件的防漏止血阀
公开(公告)号：US4723550A
公开(公告)日：1988-02-09
申请号：US928828
申请日：1986-11-10
申请人： Thomas O. Bales , J. William Box , Keith Reisinger
发明人： Thomas O. Bales , J. William Box , Keith Reisinger
IPC分类号： A61M39/00 , A61B17/34 , A61M39/06 , A61M29/02
CPC分类号： A61B17/3462 , A61M39/0613
摘要： A hemostasis valve in which the valve member is a tubular, resilient gasket which may be compressed with variable pressure to provide a variable pressure seal to an elongated member extending through the tubular bore of the gasket. The gasket bore also defines at least one resilient, annular rib whereby the elongated member passing through the tubular gasket bore may be subjected at all times to at least a relatively low pressure seal from the resilient, annular rib, irrespective of the pressure of the variable pressure seal. Additionally, the pressure on the gasket may be applied and released by means of a pressure member positioned against the gasket. Structure is provided permitting longitudinal motion, but preventing rotational motion, of the pressure member. A rotatable cap is provided, with facing, mating spiral track means carried on both the inner face of th rotatable cap and outer face of the pressure member, to cause pressurizing advancement of the pressure member against the tubular gasket by rotation of the cap in one direction, and release of such pressurizing advancement by rotation of the cap in the other direction.
摘要翻译：止血阀，其中阀构件是管状的弹性垫圈，其可以以可变的压力被压缩，以向穿过垫圈的管状孔的细长构件提供可变的压力密封。衬垫孔还限定至少一个弹性的环形肋，由此通过管状垫圈孔的细长构件可以始终经受来自弹性环形肋的至少相对较低的压力密封，而不管变量的压力如何压力密封。此外，垫圈上的压力可以通过抵靠垫圈定位的压力构件施加和释放。提供允许压力构件的纵向运动但防止旋转运动的结构。提供了一个可转动的盖，其面对的配合的螺旋形轨道装置承载在可旋转的盖的内表面和压力构件的外表面之间，以通过将帽旋转在一个中来使压力构件压靠前进到管状衬垫方向，并且通过在另一方向上旋转盖来释放这种加压进给。

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