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    TRANS-SEPTAL CATHETER WITH RETENTION MECHANISM
    31.
    发明专利
    TRANS-SEPTAL CATHETER WITH RETENTION MECHANISM 未知

    公开(公告)号：CA2446920A1

    公开(公告)日：2002-11-28

    申请号：CA2446920

    申请日：2002-05-21

    Applicant: MEDTRONIC INC

    Inventor： FRANCISCHELLI DAVID E ,  STEWART MARK T ,  SKARDA JAMES R

    IPC: A61B17/00 ,  A61F2/958 ,  A61M25/10

    Abstract: A trans-septal guide catheter for providing access through the septum separating a first heart chamber from a second heart chamber that includes a n elongated guide catheter body extending between guide catheter proximal and distal ends. A distal segment of the guide catheter is adapted to be inserte d through the septum to locate the distal segment of the guide catheter within one of the first heart chamber and the second heart chamber. The catheter bo dy encloses a guide catheter lumen adapted to provide access into the one of th e first heart chamber and the second heart chamber through a guide catheter lumen proximal end opening and a guide catheter lumen distal end opening. A retention mechanism engages the septum and maintains the distal segment of t he guide catheter extending into the one of the first heart chamber and the second heart chamber.

    32.
    发明专利
    未知

    公开(公告)号：DE69523977D1

    公开(公告)日：2002-01-03

    申请号：DE69523977

    申请日：1995-04-28

    Applicant: MEDTRONIC INC

    Inventor： STEWART MARK T ,  MORRIS MARY M ,  DIDOMENICO EDWARD ,  KENNEY KENNETH W ,  HESS DOUGLAS N

    IPC: A61N1/05 ,  B29C59/14

    Abstract: An implantable electrode type lead assembly 10 of the flexible type which is particularly adapted for implantation in the cardiac tissue for applications such as use with a pacemaker. The lead assembly has an electrode head 40 which includes a fixation spiral for implantation into tissue. The spiral or rotation action of the electrode head 40 is controlled by means of an elongated torsionally wound electrical coil conductor 14, the coil extending through the lead from the proximal to the distal end thereof and carried within a silicone tube 24 which is co-extensive therewith, the tube having been especially treated to modify the slip characteristics of the internal diameter (ID) thereof for high efficiency torque transfer.

    TRANS-SEPTAL CATHETER WITH RETENTION MECHANISM
    38.
    发明申请
    TRANS-SEPTAL CATHETER WITH RETENTION MECHANISM 审中-公开
    带有保持机构的TRANS-SEPTAL CATHETER

    公开(公告)号：WO02094363A3

    公开(公告)日：2003-02-06

    申请号：PCT/US0216142

    申请日：2002-05-21

    Applicant: MEDTRONIC INC

    Inventor： STEWART MARK T ,  FRANCISCHELLI DAVID E ,  SKARDA JAMES R

    IPC: A61B17/00 ,  A61F2/958 ,  A61M25/10

    CPC classification number: A61B17/00234 ,  A61B2017/00252 ,  A61M25/10

    Abstract: A trans-septal guide catheter for providing access through the septum separating a first heart chamber from a second heart chamber that includes an elongated guide catheter body extending between guide catheter proximal and distal ends. A distal segment of the guide catheter is adapted to be inserted through the septum to locate the distal segment of the guide catheter within one of the first heart chamber and the second heart chamber. The catheter body encloses a guide catheter lumen adapted to provide access into the one of the first heart chamber and the second heart chamber through a guide catheter lumen proximal end opening and a guide catheter lumen distal end opening. A retention mechanism engages the septum and maintains the distal segment of the guide catheter extending into the one of the first heart chamber and the second heart chamber.

    Abstract translation: 一种反间隔导引导管，用于提供通过将第一心室与第二心室隔开的隔膜的通路，该第二心室包括在引导导管近端和远端之间延伸的细长引导导管主体。 引导导管的远侧部分适于插入穿过隔膜以将引导导管的远侧部分定位在第一心室和第二心室之一内。 导管主体包围引导导管内腔，其适于通过引导导管内腔近端开口和引导导管内腔远端开口提供通向第一心室和第二心室之一的通路。 保持机构接合隔膜并且保持引导导管的远端段延伸到第一心室和第二心室中的一个。

    EXTRACTABLE IMPLANTABLE MEDICAL LEAD
    40.
    发明申请
    EXTRACTABLE IMPLANTABLE MEDICAL LEAD 审中-公开
    可提取的可植入医疗领域

    公开(公告)号：WO0027469A3

    公开(公告)日：2000-08-31

    申请号：PCT/US9926111

    申请日：1999-11-04

    Applicant: MEDTRONIC INC ,  SHOBERG BRET R ,  PADGETT CLARE E ,  LASKE TIMOTHY G ,  WALDHAUSER STEVEN L ,  STEWART MARK T ,  TAYLOR CATHERINE E ,  KEENEY KENNETH W ,  MARSHALL MARK T

    Inventor： SHOBERG BRET R ,  PADGETT CLARE E ,  LASKE TIMOTHY G ,  WALDHAUSER STEVEN L ,  STEWART MARK T ,  TAYLOR CATHERINE E ,  KEENEY KENNETH W ,  MARSHALL MARK T

    IPC: A61N1/05

    CPC classification number: A61N1/056 ,  A61N1/0563

    Abstract: A medical electrical lead provided with a generally isodiametric lead body. The lead body includes a first elongated plastic tube and an elongated conductor mounted in the first plastic tube. A first coil electrode is mounted exterior to and around the outer surface of the first tube and is coupled to the conductor. A second elongated plastic tube having an outer diameter approximately equal to the outer diameter of the first coil electrode, is mounted exterior to and around the outer surface of the first tube adjacent the first coil electrode and extends proximally therefrom. A second coil electrode having an outer diameter approximately equal to the outer diameter of the first coil electrode may be mounted exterior to and around the first tube proximal to the first coil electrode such that the second elongated plastic tube extends to a point adjacent the second coil electrode. A third elongated plastic tube having an outer diameter approximately equal to the outer diameter of the second coil electrode may be mounted exterior to the first tube adjacent the second coil electrode and extending proximally therefrom. In a preferred embodiment, the first tube is an extruded multi-lumen tube.

    Abstract translation: 一个医用电线，带有一个大致等面积的铅体。 引线体包括第一细长塑料管和安装在第一塑料管中的细长导体。 第一线圈电极安装在第一管的外表面之外并且围绕第一管的外表面并且连接到导体。 具有大致等于第一线圈电极的外径的外径的第二细长塑料管被安装在与第一线圈电极相邻并在其周围的第一管的外表面的外部和周围，并从其向近侧延伸。 具有大致等于第一线圈电极的外径的外径的第二线圈电极可以安装在靠近第一线圈电极的第一管的外部和周围，使得第二细长塑料管延伸到与第二线圈相邻的点 电极。 具有大致等于第二线圈电极的外径的外径的第三细长塑料管可以安装在邻近第二线圈电极的第一管的外部并且从其向近侧延伸。 在优选实施例中，第一管是挤出的多腔管。

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