Methods and apparatus for imparting curves in elongated medical catheters
    1.
    发明授权
    Methods and apparatus for imparting curves in elongated medical catheters 失效
    在细长的医用导管中赋予曲线的方法和装置

    公开(公告)号:US06939338B2

    公开(公告)日:2005-09-06

    申请号:US10125365

    申请日:2002-04-19

    摘要: Curves and dynamic shapes are imparted in distal segments of medical instruments e.g., catheters, through use of a temperature-activated actuator coupled to distal segment of the instrument body. The actuator comprises includes members extending side-by-side in substantially a common plane and configured to move in opposite directions when independently activated. A first heating device is coupled to a first actuator member and configured to deliver thermal energy to the first actuator member to activate the first actuator member and cause the first actuator member to move the distal segment in a first direction. A second heating device is coupled to a second actuator member and configured to deliver thermal energy to the second actuator member to activate the second actuator member and cause the second actuator member to move the distal segment in a second direction opposed to the first direction.

    摘要翻译: 曲线和动态形状通过使用耦合到仪器主体的远端部分的温度激活的致动器,在医疗器械的远端部分(例如导管)中被施加。 致动器包括在基本上共同的平面中并排延伸的构件,并且构造成当独立地启动时沿相反的方向移动。 第一加热装置联接到第一致动器构件并且构造成将热能传递到第一致动器构件以启动第一致动器构件并使第一致动器构件沿第一方向移动远侧段。 第二加热装置联接到第二致动器构件并且被配置为将热能传递到第二致动器构件以致动第二致动器构件并使第二致动器构件沿与第一方向相反的第二方向移动远侧段。

    Steerable catheter
    3.
    发明授权
    Steerable catheter 失效
    导向导管

    公开(公告)号:US06945956B2

    公开(公告)日:2005-09-20

    申请号:US10328329

    申请日:2002-12-23

    IPC分类号: A61M25/00 A61M37/00

    摘要: A steerable catheter and methods of fabrication including a catheter body formed of a continuous wire braid formed of wires braided over a delivery lumen liner and a pull wire lumen liner distal to a pull wire jacket port, braided around the pull wire jacket port to form a braid port, and over at least a portion of the delivery lumen liner proximal to the pull wire jacket port. A pull wire extends from a pull wire proximal end through the pull wire lumen port and through the pull wire lumen to a pull wire distal end. A band is attached to the pull wire distal end and fitted over a distal segment of the wire braid proximal to the catheter body distal end to fix the pull wire distal end to the catheter body and restrain the wire distal end from flaring away from the delivery lumen liner.

    摘要翻译: 一种可导向的导管和制造方法,其包括由连续导线编织物形成的导管主体,所述连续导线编织物由编织在输送内腔衬垫上的电线形成,并且拉线内腔衬套远离牵引线护套端口,围绕拉线护套端口编织以形成 编织端口,以及靠近拉线护套端口的至少一部分输送腔衬垫。 拉线从牵引线近端延伸穿过拉线管腔端口并且通过拉线内腔延伸到拉线远端。 带子连接到拉线远端并且装配在靠近导管主体远端的导线编织物的远侧部分上,以将拉线远端固定到导管主体并且限制线材远端远离输送 流明衬垫

    Extractable implantable medical lead
    5.
    发明授权
    Extractable implantable medical lead 有权
    可提取植入式医用铅

    公开(公告)号:US06801809B2

    公开(公告)日:2004-10-05

    申请号:US09854999

    申请日:2001-05-14

    IPC分类号: A61N105

    CPC分类号: A61N1/056 A61N2001/0578

    摘要: A medical electrical lead with a tip-ring assembly optimized to resist damage during extraction. The lead includes an elongated plastic tube and at least two elongated conductors mounted in the plastic tube. A tip-ring assembly is mounted to the distal end of the tube, the tip-ring assembly including a ring electrode coupled to one of the conductors, a tip electrode located distal to the ring electrode and coupled to another of the conductors and two molded plastic components separately fabricated of a plastic harder than the plastic tube, adhered to one another and together defining a circumferential groove in which the ring electrode is located and mechanically coupled to the tip electrode. The tip electrode may be provided with a proximally extending electrode shank covered by a tine sleeve which is fabricated of a plastic softer than the molded plastic components and is adhered to more distally located molded plastic component. The more distally located molded plastic component preferably overlaps the electrode shank to provide a stronger structure.

    摘要翻译: 具有尖端环组件的医疗电气引线,优化以防止在提取期间的损坏。 引线包括细长塑料管和安装在塑料管中的至少两根细长导体。 尖端环组件安装到管的远端,尖端环组件包括耦合到一个导体的环形电极,位于环形电极远侧并连接到另一个导体的尖端电极,以及两个模制 分别由比塑料管更硬的塑料制成的塑料部件彼此粘合在一起并且一起形成环形电极所在的并且机械地联接到尖端电极的周向槽。 尖端电极可以设置有由齿形套筒覆盖的近端延伸的电极柄,其由比模制的塑料部件更软的塑料制成并且被粘附到更远端定位的模制塑料部件上。 更远端定位的模制塑料部件优选地与电极柄重叠以提供更强的结构。

    Non-sheath based medical device delivery system
    9.
    发明授权
    Non-sheath based medical device delivery system 失效
    非护套型医疗器械输送系统

    公开(公告)号:US07092765B2

    公开(公告)日:2006-08-15

    申请号:US10252243

    申请日:2002-09-23

    IPC分类号: A61N1/372

    摘要: A non-sheath based medical device delivery system is provided including an elongated tubular guide body having a distal end fixedly attached to a resilient collet with a longitudinal opening to receive a medical lead or other device. The collet may be opened by actuating a retraction member to cause the closing member to slide proximally along the collet shaft, allowing the collet to maintain a normally open position. With the collet closed, the device may be advanced to a desired internal body location by advancing the guide body. The majority of the device body will be exposed, running alongside the guide body, allowing any sensors or electrodes located on the device body to be fully operational during the implantation procedure. The delivery system may be removed by opening the collet, to slidably disengage from the device body.

    摘要翻译: 提供了一种非护套型医疗装置递送系统,其包括细长管状引导体,其具有固定地附接到弹性夹头的远端,纵向开口以接收医疗引线或其它装置。 夹头可以通过致动回缩构件来打开,以使封闭构件沿夹头轴向近侧滑动,从而允许夹头保持常开位置。 在夹头关闭的情况下,通过推进引导体,装置可以前进到期望的内部身体位置。 装置主体的大部分将被暴露,与引导体一起运行,允许位于装置主体上的任何传感器或电极在植入过程中完全可操作。 输送系统可以通过打开夹头而与装置主体滑动脱离。

    Shape memory alloy actuators
    10.
    发明授权
    Shape memory alloy actuators 有权
    形状记忆合金执行器

    公开(公告)号:US06832478B2

    公开(公告)日:2004-12-21

    申请号:US10410545

    申请日:2003-04-09

    IPC分类号: F03G706

    CPC分类号: F03G7/065 A61B1/0058

    摘要: An electrically insulative layer of a shape memory alloy (SMA) actuator includes an inorganic material formed upon a portion of an SMA substrate. A conductive material formed upon a portion of the electrically insulative layer in a trace pattern includes a first end, a second end, and a heating element disposed between the first and second ends. The SMA substrate is trained to deform at a transition temperature achieved when electricity is conducted through the conductive material via first and second interconnect pads terminating the first and second ends of the trace pattern.

    摘要翻译: 形状记忆合金(SMA)致动器的电绝缘层包括形成在SMA基底的一部分上的无机材料。 形成在电绝缘层的痕迹图案的一部分上的导电材料包括第一端,第二端和设置在第一端和第二端之间的加热元件。 训练SMA基底,以在通过导电材料通过终止迹线图案的第一和第二端的第一和第二互连焊盘传导电导时实现的转变温度下变形。