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44 条记录 (耗时 0.033 秒)

    Dual lumen catheter and method of use
    1.
    发明授权
    Dual lumen catheter and method of use 失效
    双腔导管及使用方法

    公开(公告)号：US5380276A

    公开(公告)日：1995-01-10

    申请号：US203126

    申请日：1994-02-28

    申请人： John Miller ,  Victor Gamble ,  David Beattie

    发明人： John Miller ,  Victor Gamble ,  David Beattie

    IPC分类号： A61M1/28 ,  A61M25/00 ,  A61M25/14 ,  A61M25/16 ,  A61M1/00 ,  A61M3/00

    CPC分类号： A61M25/0032 ,  A61M1/285 ,  A61M2025/0031 ,  A61M25/0009

    摘要： The invention includes a dual lumen catheter which is a unitary, elongated, flexible catheter tube that is substantially circular in cross-section. The catheter tube has an outer wall member forming a tube having a proximal end and a distal end portion adapted for insertion within a vein or artery of a patient. The outer wall member defines first and second coaxial lumens that are separated by an inner common support wall which is substantially circular and joins the outer wall. The first lumen extends longitudinally between the opposed distal and proximal ends of the catheter tube and terminates coextensive with the distal end portion of the catheter tube. The second lumen extends longitudinally from the proximal end of the catheter tube and terminates proximal to the distal end portion of the catheter tube. The second lumen is crescent-shaped in cross-section and substantially surrounds the first lumen. The cross-sectional areas of the first and second lumens are approximately equal.

    摘要翻译： 本发明包括双腔导管，其是整体的，细长的柔性导管，其横截面基本为圆形。 导管具有形成管的外壁构件，其具有适于插入患者的静脉或动脉中的近端和远端部分的管。 外壁构件限定由内部公共支撑壁分隔的第一和第二同轴腔，其基本上是圆形并且连接外壁。 第一管腔在导管管的相对的远端和近端之间纵向延伸并终止与导管管的远端部分共同延伸。 第二腔从导管管的近端纵向延伸并且终止于导管的远端部分附近。 第二腔是横截面的月牙形并且基本上围绕第一腔。 第一和第二腔的横截面面积近似相等。

    Dual lumen catheter
    2.
    发明授权
    Dual lumen catheter 失效
    双腔导管

    公开(公告)号：US5364344A

    公开(公告)日：1994-11-15

    申请号：US139677

    申请日：1993-10-22

    申请人： David Beattie ,  John Miller ,  Victor Gamble

    发明人： David Beattie ,  John Miller ,  Victor Gamble

    IPC分类号： A61M25/00

    CPC分类号： A61M25/003 ,  A61M2025/0003 ,  A61M2025/0031 ,  A61M2025/004

    摘要： Disclosed is a dual lumen catheter for insertion within a blood vessel of a patient. The dual lumen catheter has an elongated flexible tube with three conduits contained therein. The first and second conduits are connected together by an opening in the common wall therebetween, which opening extends through the wall of the catheter tube. The third passageway forms a second lumen. Each of the lumens has means adapted for placement of the lumen in fluid communication with a source of liquid to be administered to the patient through the catheter, to means for withdrawing a blood sample or to means for monitoring blood pressure.

    摘要翻译： 公开了一种用于插入患者血管内的双腔导管。 双腔导管具有细长的柔性管，其中包含三个导管。 第一和第二导管通过其间的公共壁中的开口连接在一起，该开口延伸穿过导管的壁。 第三通道形成第二管腔。 每个管腔具有适于将内腔放置成与通过导管向患者施用的液体源流体连通的装置，用于取出血液样本的装置或用于监测血压的装置。

    Pyrolysis furnace feed
    6.
    发明授权
    Pyrolysis furnace feed 有权
    热解炉饲料

    公开(公告)号：US07625480B2

    公开(公告)日：2009-12-01

    申请号：US11432260

    申请日：2006-05-11

    申请人： David Beattie ,  Richard Charles Stell ,  James N. McCoy ,  Bryan Daniel McVicker ,  Paul F. Keusenkothen ,  Alok Srivastava ,  David Bleckinger

    发明人： David Beattie ,  Richard Charles Stell ,  James N. McCoy ,  Bryan Daniel McVicker ,  Paul F. Keusenkothen ,  Alok Srivastava ,  David Bleckinger

    IPC分类号： C10G9/00 ,  C10G15/00

    CPC分类号： C10G9/00 ,  C10G9/20

    摘要： The invention relates to a method for processing asphaltene-containing feed to a pyrolysis furnace by raising the final boiling point of the feed/steam mixture to the pyrolysis furnace to ensure fouling occurs lower in the convection section where the mixture of air and steam can burn off fouling deposits during decoking operations. The final boiling point of the feed stream is increased by adding a heavy essentially asphaltene-free high boiling point hydrocarbon to the feed stream before the feed stream enters the convection section of the pyrolysis furnace, whereby said fouling occurs lower in the convection section.

    摘要翻译： 本发明涉及通过将进料/蒸汽混合物的最终沸点提高到热解炉来将沥青质的进料加工成热解炉的方法，以确保在空气和蒸汽的混合物可以燃烧的对流部分中发生较低的结垢 在除焦作业期间污染沉积物。 在进料流进入热解炉的对流段之前，通过向进料流中加入重质基本上不含沥青质的高沸点烃来提高进料流的最终沸点，由此在对流段中发生较低的污垢。

    Steam cracking of light hydrocarbon feedstocks containing non-volatile components and/or coke precursors
    7.
    发明授权
    Steam cracking of light hydrocarbon feedstocks containing non-volatile components and/or coke precursors 有权
    含有非挥发性组分和/或焦炭前体的轻烃原料的蒸汽裂化

    公开(公告)号：US07297833B2

    公开(公告)日：2007-11-20

    申请号：US10851500

    申请日：2004-05-21

    申请人： David Beattie ,  Richard C. Stell ,  Alok Srivastava ,  James N. McCoy

    发明人： David Beattie ,  Richard C. Stell ,  Alok Srivastava ,  James N. McCoy

    IPC分类号： C10G9/14 ,  C07C4/04

    CPC分类号： C10G9/00 ,  C10G9/20

    摘要： A process for cracking a light hydrocarbon feedstock containing non-volatile components and/or coke precursors, wherein a heavy hydrocarbon feedstock is added to the contaminated light hydrocarbon feedstock to form a contaminated hydrocarbon feedstock blend which is thereafter separated into a vapor phase and a liquid phase by flashing in a flash/separation vessel, separating and cracking the vapor phase, and recovering cracked product. The heavy hydrocarbon feedstock allows operation of the flash/separation vessel at a higher temperature, within the operating temperature range of the separation vessel.

    摘要翻译： 一种用于裂化含有非挥发性组分和/或焦炭前体的轻烃原料的方法，其中将重质烃原料加入到受污染的轻烃原料中以形成污染的烃原料混合物，之后将其分离成气相和液体 在闪蒸/分离容器中闪烁，分离和裂化气相，并回收裂化产物。 重烃原料允许闪蒸/分离容器在分离容器的操作温度范围内的较高温度下操作。