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179 条记录 (耗时 0.042 秒)

    Sheath and method for intravascular treatment
    81.
    发明授权
    Sheath and method for intravascular treatment 失效
    鞘和血管内治疗方法

    公开(公告)号：US5415639A

    公开(公告)日：1995-05-16

    申请号：US45019

    申请日：1993-04-08

    申请人： David A. VandenEinde ,  Peter T. Keith ,  Daniel O. Adams ,  Robert E. Atkinson

    发明人： David A. VandenEinde ,  Peter T. Keith ,  Daniel O. Adams ,  Robert E. Atkinson

    IPC分类号： A61M25/06 ,  A61M29/02 ,  A61M25/00

    CPC分类号： A61M25/104 ,  A61M25/0668 ,  A61M25/09041 ,  A61M2025/0008 ,  A61M2025/0183 ,  A61M2025/107 ,  A61M2025/1079

    摘要： A sheath for facilitating a guide wire exchange is defined by an elongated tubular member having a proximal end, a distal end and a single thru lumen. The sheath also has a proximal insertion opening and a distal insertion opening in communication with the thru lumen. The sheath includes a distal guide segment for "single operator" insertion and a peelable extent for peelably removing the sheath after use. The distal guide segment is formed along a distal portion of the elongated tubular member. The sheath is inserted along a pre-inserted guide wire by inserting a proximal end of the pre-inserted guide wire through a guide lumen of the distal guide segment. The sheath is advanced distally along the pre-inserted guide wire to a desired position and thereafter the pre-inserted guide wire is withdrawn. A re-shaped guide wire or substitute guide wire is inserted through the proximal insertion opening and advanced through the thru lumen of the sheath to a treatment site. The sheath is withdrawn while peelably removing the tubular member from the inserted guide wire.

    摘要翻译： 用于促进导丝交换的护套由具有近端，远端和单通道的细长管状构件限定。 护套还具有近端插入开口和与穿过腔连通的远侧插入开口。 鞘包括用于“单操作者”插入的远侧引导部分和用于在使用后可剥离地去除鞘的可剥离范围。 远侧引导段沿着细长管状构件的远端部分形成。 通过将预先插入的导丝的近端插入远侧引导段的引导内腔，沿着预先插入的导丝插入护套。 护套沿着预插入的导丝线向远侧推进到期望的位置，此后将预先插入的导丝线取出。 重新形状的导丝或替代导丝插入穿过近侧插入口并穿过鞘的通过腔进入治疗部位。 护套被取出，同时从插入的导丝上可剥离地移除管状构件。

    Balloon catheter with disial guide wire lumen
    82.
    发明授权
    Balloon catheter with disial guide wire lumen 失效
    气球导管与二次导丝管腔

    公开(公告)号：US5370616A

    公开(公告)日：1994-12-06

    申请号：US204802

    申请日：1994-03-02

    申请人： Peter T. Keith ,  Charles L. Euteneuer

    发明人： Peter T. Keith ,  Charles L. Euteneuer

    IPC分类号： A61M25/00 ,  A61M25/06 ,  A61M29/02

    CPC分类号： A61M25/104 ,  A61M25/0662 ,  A61M2025/0034 ,  A61M2025/0098 ,  A61M2025/0183 ,  A61M2025/09191 ,  A61M2025/1056 ,  A61M2025/1061 ,  A61M2025/1079 ,  A61M25/0029 ,  A61M25/0032 ,  A61M25/0054

    摘要： An over-the-wire balloon dilatation catheter has a stainless steel hypotube catheter shaft, an intermediate sleeve section bonded to the shaft and a distal balloon section connected to the sleeve section. The sleeve section is formed from relatively flexible polymer materials and includes an inner core tube which defines a guide wire lumen extending only through a distal portion of the catheter (including its sleeve and balloon sections) to facilitate fast balloon catheter exchanges. A distal end of the hypotube shaft is crimped laterally and the core tube is nested and bonded within the crimp to provide a proximal outlet for the guide wire lumen. The hypotube shaft provides an inflation lumen for the balloon, with the inflation lumen being continued as an annular inflation lumen through the sleeve section where an outer sleeve is bonded about the core tube and extends from the distal end of the hypotube shaft to the balloon section. A kink-resistant coil structure extends distally from the distal end of the hypotube shaft to provide a gradual change in stiffness along the length of the catheter from the relatively stiff hypotube shaft to the relatively flexible distal portion of the catheter.

    摘要翻译： 超线球囊扩张导管具有不锈钢海波管导管轴，粘结到轴的中间套筒部分和连接到套筒部分的远端球囊部分。 套筒部分由相对柔性的聚合物材料形成并且包括内芯管，其限定仅通过导管的远端部分（包括其套管和气囊部分）延伸的导丝管腔，以便于快速气囊导管交换。 海波管轴的远端横向卷曲，并且芯管嵌套并粘合在卷曲内以提供用于导丝管腔的近端出口。 海波管轴为气囊提供充气腔，其中膨胀腔作为环形充气腔通过套筒部分继续，其中外套筒围绕芯管结合并且从海波管的远端延伸到球囊部分 。 抗扭线圈结构从海波管的远端向远端延伸，以沿着导管的长度从相对刚性的海波管轴到导管的相对柔性的远侧部分逐渐改变刚度。

    Devices and methods for cardiovascular reflex control via coupled electrodes
    85.
    发明授权
    Devices and methods for cardiovascular reflex control via coupled electrodes 有权
    通过耦合电极进行心血管反射控制的装置和方法

    公开(公告)号：US07949400B2

    公开(公告)日：2011-05-24

    申请号：US12616057

    申请日：2009-11-10

    申请人： Robert S. Kieval ,  Bruce J. Persson ,  David J. Serdar ,  Peter T. Keith ,  Martin A. Rossing

    发明人： Robert S. Kieval ,  Bruce J. Persson ,  David J. Serdar ,  Peter T. Keith ,  Martin A. Rossing

    IPC分类号： A61N1/05

    CPC分类号： A61N1/08 ,  A61N1/0551 ,  A61N1/0558 ,  A61N1/36007 ,  A61N1/36117 ,  A61N1/37229

    摘要： Devices, systems and methods are disclosed by which the blood pressure, nervous system activity, and neurohormonal activity may be selectively and controllably reduced by activating baroreceptors. A baroreceptor activation device is positioned near a baroreceptor, preferably a baroreceptor located in the carotid sinus. A control system may be used to modulate the baroreceptor activation device. The control system may utilize an algorithm defining a stimulus regimen which promotes long term efficacy and reduces power requirements/consumption. The baroreceptor activation device may utilize RF-coupled or other electrodes to activate the baroreceptors. The electrodes may be adapted for connection to the carotid arteries at or near the carotid sinus, and may be designed to minimize extraneous tissue stimulation.

    摘要翻译： 公开了装置，系统和方法，通过其可以通过激活压力感受器来选择性地和可控地降低血压，神经系统活性和神经激素活性。 压力感受器激活装置位于压力感受器附近，优选位于颈动脉窦中的压力感受器。 控制系统可用于调节压力感受器激活装置。 控制系统可以利用定义刺激方案的算法，其促进长期功效并降低功率需求/消耗。 压电感受器激活装置可以利用RF耦合或其它电极来激活压力感受器。 电极可以适于连接到颈动脉窦处或附近的颈动脉，并且可以设计成使外来组织刺激最小化。