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    • 43. 发明申请
    • TREATMENT OF VASCULAR OCCLUSIONS USING ELEVATED TEMPERATURES
    • 使用高温治疗血管闭塞症
    • US20070161951A1
    • 2007-07-12
    • US11685643
    • 2007-03-13
    • Douglas HansmannPeter Rule
    • Douglas HansmannPeter Rule
    • A61F7/12
    • A61B17/2202A61B2018/046
    • A method for providing a therapeutic effect to a treatment site within a patient's vasculature comprises positioning a catheter at the treatment site. The catheter includes a heating element and a fluid delivery lumen that is coupled to an exit port within a distal region of the catheter. The method further comprises passing the therapeutic compound through the delivery lumen and the exit port at a flow rate. The heated therapeutic compound is provided to the treatment site. The method further comprises exposing at least a portion of the treatment site and at least a portion of the delivered heated therapeutic compound to ultrasonic energy generated by the ultrasound radiating member.
    • 用于向患者的脉管系统内的治疗部位提供治疗效果的方法包括将导管定位在治疗部位。 导管包括加热元件和流体输送腔,其与导管的远侧区域内的出口连接。 该方法还包括以流速使治疗化合物通过输送腔和出口。 将加热的治疗化合物提供给治疗部位。 所述方法还包括将所述处理部位的至少一部分和所递送的加热治疗化合物的至少一部分暴露于由所述超声波辐射部件产生的超声波能量。
    • 50. 发明申请
    • Catheter with ultrasound-controllable porous membrane
    • 导管与超声可控多孔膜
    • US20050137520A1
    • 2005-06-23
    • US10977502
    • 2004-10-29
    • Peter RuleDouglas HansmannRobert Wilcox
    • Peter RuleDouglas HansmannRobert Wilcox
    • A61B17/22A61M37/00A61B17/20
    • A61B17/2202A61M37/0092
    • A catheter system for delivering ultrasonic energy and a therapeutic compound to a treatment site within a patient's vasculature comprises a tubular body having an energy delivery section. The catheter system further comprises a fluid delivery lumen extending at least partially through the tubular body. The catheter system further comprises a semi-permeable membrane positioned along a portion of the fluid delivery lumen. The membrane has an increased porosity when exposed to ultrasonic energy. The catheter system further comprises an inner core configured for insertion into the tubular body. The inner core comprises an elongate electrical conductor having a plurality of flattened regions. Each flattened region has a first flat side and a second flat side opposite the first flat side. The inner core further comprises a plurality of ultrasound radiating members mounted in pairs to the flattened regions of the elongate electrical conductor. A first ultrasound radiating member is mounted to the first flat side of the elongate electrical conductor, and a second ultrasound radiating member is mounted to the second flat side of the elongate electrical conductor. The inner core further comprises wiring such that a voltage can be applied from the elongate electrical conductor across the first and second ultrasound radiating members allowing the first and second ultrasound radiating members to be driven simultaneously.
    • 用于将超声能量和治疗性化合物输送到患者脉管系统内的治疗部位的导管系统包括具有能量输送部分的管状体。 导管系统还包括至少部分地延伸通过管状体的流体输送腔。 导管系统还包括沿流体输送腔的一部分定位的半透膜。 当暴露于超声能量时,膜具有增加的孔隙率。 该导管系统还包括被配置成插入到管状体内的内芯。 内芯包括具有多个扁平区域的细长电导体。 每个扁平区域具有与第一平坦侧相对的第一平坦侧和第二平坦侧。 内芯还包括与细长电导体的扁平区域成对安装的多个超声波辐射构件。 第一超声波辐射构件安装到细长电导体的第一平坦侧,并且第二超声波辐射构件安装到细长电导体的第二平坦侧。 内芯还包括布线,使得可以从细长的导体穿过第一和第二超声波辐射构件施加电压,允许同时驱动第一和第二超声波辐射构件。