Implantable joint prosthesis
    1.
    发明授权
    Implantable joint prosthesis 有权
    植入式关节假体

    公开(公告)号:US08092542B2

    公开(公告)日:2012-01-10

    申请号:US12624160

    申请日:2009-11-23

    IPC分类号: A61F2/44 A61F2/28

    摘要: The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.

    摘要翻译: 本发明涉及一种手术植入物,其提供适于用于替换任何关节,但特别适合用作椎间盘内假体的人造骨关节样关节。 本发明包含两个刚性的相对的壳,每个具有外表面,该外表面适合于接合骨头的表面,使得外壳通过其外表面和骨表面之间的摩擦固定。 这些外表面足够粗糙,使得大的摩擦力强烈地抵抗接合处的外表面和骨表面之间的任何滑动。 它们可以是凸形的,并且当插入铣削凹部时,它们立即机械地稳定。 理想地,壳的外表面适于允许骨向内生长,这进一步将壳稳定在适当位置。 壳的内表面相对平滑,并且适于容易地滑过设置在壳之间的中心体的外表面的一部分。 中心体具有与壳的内表面的形状配合的形状,以提供类似于由健康关节提供的运动范围。 柔性护套在相对的壳的边缘之间延伸。 该护套的内表面与刚性外壳的内表面一起限定了一个包围中心体的空腔。 该空腔的至少一部分填充有流体润滑剂,进一步降低了壳的内表面与中心体的表面之间的摩擦力。

    IMPLANTABLE JOINT PROSTHESIS
    2.
    发明申请
    IMPLANTABLE JOINT PROSTHESIS 审中-公开
    可植入的联系

    公开(公告)号:US20110295374A1

    公开(公告)日:2011-12-01

    申请号:US13204187

    申请日:2011-08-05

    IPC分类号: A61F2/44

    摘要: The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.

    摘要翻译: 本发明涉及一种手术植入物,其提供适于用于替换任何关节,但特别适合用作椎间盘内假体的人造骨关节样关节。 本发明包含两个刚性的相对的壳,每个具有外表面,该外表面适合于接合骨头的表面,使得外壳通过其外表面和骨表面之间的摩擦固定。 这些外表面足够粗糙,使得大的摩擦力强烈地抵抗接合处的外表面和骨表面之间的任何滑动。 它们可以是凸形的,并且当插入铣削凹部时,它们立即机械地稳定。 理想地,壳的外表面适于允许骨向内生长,这进一步将壳稳定在适当位置。 壳的内表面相对平滑,并且适于容易地滑过设置在壳之间的中心体的外表面的一部分。 中心体具有与壳的内表面的形状配合的形状,以提供类似于由健康关节提供的运动范围。 柔性护套在相对的壳的边缘之间延伸。 该护套的内表面与刚性外壳的内表面一起限定了一个包围中心体的空腔。 该空腔的至少一部分填充有流体润滑剂,进一步降低了壳的内表面与中心体的表面之间的摩擦力。

    Process for the preparation of fluid loss additive and gel breaker
    4.
    发明授权
    Process for the preparation of fluid loss additive and gel breaker 失效
    流体损失添加剂和凝胶破碎剂的制备方法

    公开(公告)号:US4986355A

    公开(公告)日:1991-01-22

    申请号:US353947

    申请日:1989-05-18

    IPC分类号: C09K8/508 C09K8/62

    摘要: A melted polymer of hydroxyacetic acid with itself or with other hydroxy-, carboxylic acid-, or hydroxycarboxylic acid-containing moieties is subjected to high shear and injected into an organic liquid which is inert to the polymer to form an organic liquid dispersion of very fine polymer particles. In one aspect the melted polymer is combined with the organic liquid and the combination is thereafter subjected to high shear to form the fine particle polymer dispersion. A dispersion agent may also be used to aid in dispersing the particles. The dispersion is used for fluid loss control and gel breaking in subterranean formations.

    摘要翻译: 将羟基乙酸与其本身或与其它含羟基,羧酸或羟基羧酸的部分熔融的聚合物经受高剪切并注入到对聚合物惰性的有机液体中以形成非常细的有机液体分散体 聚合物颗粒。 在一个方面,将熔融的聚合物与有机液体结合,然后将组合物进行高剪切以形成细颗粒聚合物分散体。 也可以使用分散剂来帮助分散颗粒。 分散体用于地下地层中的流体损失控制和凝胶破坏。

    Method of transporting viscous hydrocarbons
    5.
    发明授权
    Method of transporting viscous hydrocarbons 失效
    输送粘性烃的方法

    公开(公告)号:US4287902A

    公开(公告)日:1981-09-08

    申请号:US91014

    申请日:1979-11-05

    IPC分类号: F17D1/17

    CPC分类号: F17D1/17 Y10T137/0391

    摘要: An improvement in the method of transporting viscous hydrocarbons through pipes is disclosed. Briefly, the method comprises adding water containing an effective amount of a combination of an alkaryl sulfonate having a molecular weight of 415 to 470 and a C.sub.1 -C.sub.4 alcohol.

    摘要翻译: 公开了通过管道输送粘性烃的方法的改进。 简言之,该方法包括加入含有有效量的分子量为415〜470的烷芳基磺酸盐与C1〜C4醇的水的水。

    Separator arrangement for start-up system
    8.
    发明授权
    Separator arrangement for start-up system 失效
    启动系统的分离器布置

    公开(公告)号:US3992172A

    公开(公告)日:1976-11-16

    申请号:US556038

    申请日:1975-03-06

    申请人: Charles R. Clark

    发明人: Charles R. Clark

    摘要: A fluid separating apparatus in which an inlet is disposed in the upper portion of a substantially vertically oriented cylindrical housing for receiving a mixture of liquid and vapor. The mixture is separated in the housing by the application of centrifugal forces to the mixture and the liquid exits from the lower portion of the housing and the vapor rises and exits from the upper portion of the housing.

    摘要翻译: 一种流体分离装置,其中入口设置在基本垂直取向的圆柱形壳体的上部中,用于接收液体和蒸汽的混合物。 混合物通过向混合物施加离心力而在壳体中分离,并且液体从壳体的下部排出并且蒸气从壳体的上部上升并离开。

    Waterflood method using overbased normal alkylaromatic sulfonates
    9.
    发明授权
    Waterflood method using overbased normal alkylaromatic sulfonates 失效
    Waterflood方法使用高碱性正烷基芳族磺酸盐

    公开(公告)号:US3965984A

    公开(公告)日:1976-06-29

    申请号:US510204

    申请日:1974-09-30

    IPC分类号: C09K8/584 E21B43/22

    CPC分类号: C09K8/584 Y10S507/936

    摘要: An improved anionic waterflood additive is prepared by partially chlorinating a normal alkane having about 10 to about 18 carbon atoms to about 2 to about 15 weight percent chlorine content, employing the chlorinated alkane to alkylate an aromatic hydrocarbon, such as benzene; sulfonating the thus formed alkylate or a fraction thereof to form a sulfonic acid; converting the sulfonic acid to a sulfonate by reacting with a base component, such as an alkali metal hydroxide, ammonium hydroxide, or an alkali metal carbonate; and overbasing the sulfonate by admixing with an excess of base component such that the ratio: "weight of excess base component/weight of sulfonate" is about 0.03 to about 3.0. The anionic waterflood additive is injected into a petroliferous formation, the formation is waterflooded, and oil is recovered.

    摘要翻译: 通过使用氯代烷烃烷基化芳族烃如苯,通过部分氯化具有约10至约18个碳原子至约2至约15重量%的氯含量的正烷烃来制备改进的阴离子注水添加剂; 磺化由此形成的烷基化物或其一部分以形成磺酸; 通过与碱性成分如碱金属氢氧化物,氢氧化铵或碱金属碳酸盐反应,将磺酸转化成磺酸盐; 并通过与过量的碱成分混合来使磺酸盐过碱化,使得“过量碱成分的重量/磺酸盐的重量”的比例为约0.03至约3.0。 将阴离子注水添加剂注入含油层,形成水驱,回收油。

    Oil recovery method using overbased waterflood additive containing
sulfonates derived from alkylation reaction products
    10.
    发明授权
    Oil recovery method using overbased waterflood additive containing sulfonates derived from alkylation reaction products 失效
    采用含烷基化反应产物磺化物的高碱性含水添加剂的采油方法

    公开(公告)号:US3952803A

    公开(公告)日:1976-04-27

    申请号:US539218

    申请日:1975-01-08

    IPC分类号: C09K8/584 E21B43/22

    CPC分类号: C09K8/584 Y10S507/936

    摘要: An improved anionic overbased waterflood additive comprises a base component, a first sulfonate component derived from an alkylation reaction product employing a branched-chain alkene as the alkylating agent, and a second sulfonate component derived from an alkylation reaction product employing a partially chlorinated normal alkane as the alkylating agent, wherein the base component is present in the weight ratio range of 3/100 to 300/100, base component to total sulfonate, and wherein the weight ratio of the first sulfonate component to the second sulfonate component is in the range of 1/9 to 9/1. The overbased waterflood additive may be formed prior to injection into a petroliferous formation or may be formed in situ by first injecting the total sulfonate followed by the base component.

    摘要翻译: 改进的阴离子高碱性注水添加剂包括碱组分,衍生自使用支链烯烃作为烷基化剂的烷基化反应产物的第一磺酸盐组分和衍生自使用部分氯化的正烷烃的烷基化反应产物的第二磺酸盐组分 所述烷基化剂,其中所述基础组分以3/100〜300/100的重量比范围存在,碱成分与总磺酸盐的比例,并且其中所述第一磺酸盐组分与所述第二磺酸盐组分的重量比在 1/9至9/1。 高碱性注水添加剂可以在注入含油层之前形成,或者可以通过首先注入总磺酸盐,然后是基础组分就地形成。