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    • 4. 发明授权
    • Prosthetic joint
    • 假肢关节
    • US5011496A
    • 1991-04-30
    • US384264
    • 1989-07-24
    • Mark R. ForteDouglas G. Noiles
    • Mark R. ForteDouglas G. Noiles
    • A61F2/00A61F2/38
    • A61F2/385A61F2/3868A61F2/3886A61F2/3877A61F2310/00023A61F2310/00029
    • A prosthetic knee joint is provided having an extended position, an intermediate position, and a flexed position. The motion of the joint includes a minor segment from the extended position to the intermediate position, and a major segment from the intermediate position to the flexed position. The center of pressure between the femoral component and the tibial component moves rearward on the tibia during the minor segment. During the major segment, the joint flexes about an axis of rotation with the bearing surfaces on the femoral and tibial components being in congruent engagement. The distal surface of the femoral component includes two rails for engagement with a patellar prosthesis. The contour of the rails is either a straight line or a concave curve to provide line contact between the rails and the patellar prosthesis. In certain embodiments, the patellar prosthesis has a saddle-shaped surface so that the prosthesis and each of the rails can make contact over an area extending along the length of the rail.
    • 提供假肢膝关节具有延伸位置,中间位置和弯曲位置。 接头的运动包括从延伸位置到中间位置的小段,以及从中间位置到弯曲位置的主要段。 股骨部件和胫骨部件之间的压力中心在小腿段期间在胫骨上向后移动。 在主要部分期间,关节围绕旋转轴线弯曲,股骨和胫骨部件上的轴承表面具有一致的接合。 股骨部件的远端表面包括用于与髌骨假体接合的两个轨道。 轨道的轮廓是直线或凹曲线,以在轨道和髌骨假体之间提供线接触。 在某些实施例中,髌骨假体具有鞍形表面,使得假体和每个轨道可以在沿着轨道的长度延伸的区域上接触。
    • 9. 发明授权
    • Drip chamber with air vent
    • 滴水室带通气孔
    • US4198971A
    • 1980-04-22
    • US865971
    • 1977-12-30
    • Douglas G. Noiles
    • Douglas G. Noiles
    • A61M5/14A61M5/16
    • A61M5/1411A61M2005/1403
    • An intravenous set with a volume limiting chamber for precisely controlling the volume of parenteral solution administered to a patient and a drip chamber for determining the parenteral solution flow rate. The volume limiting chamber has a membrane valve which when wet will pass parenteral solution but will not pass air at normal intravenous administration pressures. The drip chamber has an air vent so that air can be vented to the drip chamber to lower the liquid level whenever the level is so high that the flow rate cannot easily be determined. The air vent can also be used to vent air from the drip chamber as an aid in priming the drip chamber.
    • 一种具有容积限制室的静脉注射器,用于精确地控制施用于患者的肠胃外溶液的体积和用于确定肠胃外溶液流速的滴液室。 容积限制室具有膜阀,当湿润时将通过胃肠外溶液,但不会在正常的静脉内施用压力下通过空气。 滴水室具有通风口,使得空气可以排放到滴水室,以便每当水平高到不能容易地确定流速时降低液位。 排气口也可用于从滴水室排出空气,以帮助启动滴水室。