公开(公告)号：WO1991008010A1

公开(公告)日：1991-06-13

申请号：PCT/US1990006771

申请日：1990-11-19

Applicant: THE KENDALL COMPANY

Inventor： THE KENDALL COMPANY ,  WORTLEY, Ronald, W. ,  BEATTIE, David, C.

IPC: A61M05/00

CPC classification number: A61M25/007 ,  A61M2025/0031 ,  A61M2025/0037

Abstract: A dual-lumen catheter apparatus and method. The apparatus has an elongated catheter body (12) adapted for insertion into a vein or a fluid-containing body cavity of a patient such as the right atrium of a heart. The catheter body (12) has a septum (36) that runs longitudinally through the interior of the catheter body (12) so as to divide the interior of the catheter into a first and a second lumen (32, 34). The septum (36) is offset from the longitudinal center axis of the catheter so that the cross-sectional area of the two lumens (32, 34) are of different sizes. The first lumen (34) has a cross-sectional size that is relatively large so that a sufficient volumetric flow rate of blood that is to be oxygenated is able to flow by means of gravity drainage through the first lumen (34) whereas the second lumen (32) is smaller but is still sufficiently large so that an essentially equal volumetric flow rate of blood that has been oxygenated can be returned under pressure through the second lumen (32).

Abstract translation: 双腔导管装置及方法。 该装置具有适于插入患者例如心脏右心房的静脉或含流体的体腔中的细长导管体（12）。 导管主体（12）具有纵向穿过导管主体（12）的内部的隔膜（36），以将导管内部分成第一和第二腔（32,34）。 隔膜（36）从导管的纵向中心轴线偏移，使得两个管腔（32,34）的横截面面积具有不同的尺寸。 第一腔（34）具有相对较大的横截面尺寸，使得待氧合的血液的足够体积流量能够通过重力排出通过第一腔（34）流动，而第二腔 （32）较小但仍然足够大，使得已经被氧化的血液的基本相等的体积流量可以在压力下通过第二管腔（32）返回。